Ten-Tec Omni VI Plus, 564 User guide

This obsolete manual file is provided as a courtesy to you by Ten-Tec, Inc.

Ten-Tec's service department can repair and service virtually everything we have built going

back to our first transceivers in the late 1960's. It is our ability to continue offering service on

these rigs that has led to their re-sale value remaining high and has made a major contribution to

our legendary service reputation.

Printed and bound copies of all manuals are available for purchase through our service

department if you would prefer not to use this copy as your transceiver manual.

We can repair or service your Ten-Tec equipment at our facility in Sevierville, TN. We also offer

support via telephone for all products via during usual business hours of 8 a.m. to 5 p.m. USA

Eastern time, Monday through Friday. We have a large supply of parts for obsolete products.

Repairing a transceiver or amplifier yourself? Contact us for parts pricing information.

Service department direct line: (865) 428-0364

Ten-Tec office line: (865) 453-7172

Service department email: service@tentec.com

Address: 1185 Dolly Parton Parkway, Sevierville, TN 37862 USA

We have found it is most effective for us to help you troubleshoot or repair equipment with a

consultation via telephone rather than by email.

Suggested contact methods are:

Troubleshooting or repairing equipment – call (865) 428-0364

Other inquiries – call (865) 428-0364 or email service@tentec.com

THANK YOU AND 73 FROM ALL OF US AT TEN-TEC

lrdr

TEN

I

TEG

OPE

tl|l

OMNI

VI

Rrs

L

PLUS

MODEL564

TRANSCEIVER

HF

2.

GETTING

1-1

l-2

l-J

t-4

1-5

1-6 1-7 1-8

t-9

1-1

1-11

r-12

l-13

a1

L-l

') ',

^a

0

INTERFACING

STABILITY

STARTED

OTHER

WITH

AT

TURN-ON

TEN-TEC

NON TEN-TEC

EQUIPMENT..

AMPLIFIERS............................

..................

.....1-4

-4

1

1-4

Part

No. 74253

lst Printing

Printed

in

2-4

2-5

0l/97

U.S.A.

3. DETAILEDOPERATING

3-l

)-z

INSTRUCTIONS

Part No. 74253

lst Printing

Printed in

f],S.A.

0l/97

3-3

3-4

3-5

,t

4.

CIRCUIT

DESCRIPTIONS

AND

ILLUSTRATIONS

Part No. 74253

lst Printing

in

Printed

U,S,A,

0l/97

4-l

4-2

4-3

4-4

4-5

4-6

4-7

4-8

4-9

4-r0

4-tl

4-12

TNTRODUCTION.....

DC

POWERINPUTBOARD

LOW PASS

FRONT

9 MHZ

PASS

rF/AF

s.0-5.5

XTAL

CONTROL BOARD LOGrC LED

DTSPLAYBOARD

FTLTER

END

BOARD

CRYSTAL

BAND TUNTNG BOARD

MHZPLL

OSC./LO

BOARD

FTLTER

(81602).....

BOARD

MrXER

(81606).....

BOARD

(81s93)..........

BOARD

(81s96).....

(81s91).....

(81s92).....

BOARD

(81781).....

(81599).

BOARD

(81587).................

(8

1

782).....

(81595).....

.........4_1

..............4_l

..............4_2

....................4_4

....4_6

......... 4_7

.4_r0

....4_r2

....... 4_14

..........4-16

................

..........4_2r

4_18

tu

4-t3

4-t4

4-15

4-16

4-17

4-18

4-19

4-20

4-21

5. COMPUTER

5-l

5-2

5-3

INTERFACE

rNTRODUCTrON......

SETTING UP THE

OMNI VI PLUS

DOCUMENTATION

5-4

5-5 5-6 5-7

6. TROUBLESHOOTING

RESPONSE

DATA FORMATS

COMMANDS.............

EXPANDED

SOFTWARE

SEzuAL INTERFACE

STRINGS

COMMANDS

PROCEDURES

-

RADIO

TECHNICAL

TO COMPUTER.......

FOR MODELS

563 AND

564

.......5-l

.........

........ 5-3

..............

......

ONLY.........

5-

5.2

5-3

5_4 5-

I

O

Part No. 74253

lst Printing

Printed in

U.S.A.

0l/97

lv

FIGURE

LIST

ILLUSTRATIONS

OF

1- I

DC POWER

CABLE

I-2 MICROPHONE

-3

I

BUILT-IN ELECTRONIC

l-4 6.3 MHzIF FILTER

-5

i

t-6 r-7

I

1-9

1- 1O

3- 1 MODEL

3-2

3-3 3-4

4-t

4-2

4-3 4-4 4-s

4-6 4-7

4-9

4-r0

4-r r

4-r2

4-r3

4-14

4-T5

4-r6 4-r7

4-

4-19 4-20

4-2r

4-22

9 MHzIF

FILTER INSTALLATION........

votcE BOARD

QSKHOOK-UPWrTHHERCULESIrAMPLIFrER........

-8

1

8 CONTROL

LOGrC LED

HOOK-UP

QSK

TITAN AMPLIFIER...............

HOOK-UP

QSK

AND 253

HOOK-UP

MODEL MODEL

MODEL

DC rNpUT DC rNpUT

LOW LOW

BPF/FRONT

BPF/FRONTEND

9WIzIF

pBT

PASS

IF/AF rF/AF

s.0-5.5

5.0-5.5

XTAL

CONTROL

LOGrC

ANTENNA

WITH NON

564 FRONT

564 REAR 564 TOp

564 BOTTOM

BOARD

pASS

PASS FILTER

BOARD

FTLTER

END

FILTERBOARD

COMPONENT

BAND

BOARD

TUNTNG

COMPONENT

SCHEMATTC

wrzPLL

MHz PLL

OSC.-L.O. OSC.-L.O.

BOARD

BOARD BOARD BOARD

DrSpLAy

BOARD

LEDDISPLAYBOARDSCHEMATIC(81587).........

CONNECTIONS........

CONNECTION...

KEYER...............

INSTALLATION........

WITH

CENTAUR,

HERCULES

CENTURION

II AMPLIFIER

OR

COUPLER

TEN-TEC

AMPLIFIERS.............

VrEW....

VIEW.......

VEW.........

VIEW

(81591).....

SCHEMATTC

BOARD BOARD

BOARD

COMPONENT

SCHEMATIC

BOARD

(S

1591)

COMPONENT COMPONENT

LAYOUT

COMPONENT

LAYOUT

SCFIEMATIC

(8

LAYOUT

LAYOUT (81

SCHEMATIC

SCFIEMATIC (81593).......

(81782)...................................

17S

1

).

(81781).................

(8

1602).....

s92)................

(S1

(81593).....

(81602).................

BOARD BOARD

MDGR MDGRBOARD

COMPONENT

SCFmMATIC (81596).................

COMPONENTLAYOUT

SCF{EMATTC (81606)..............

coMPoNENT

SCIIEMATIC

BOARD

COMPONENT

SCHEMATTC (81595).................

LAYOUT

COMPONENT

LAYour

(S

1599)..............

(81599)....

LAYOUT

(81596).

(81606).....

LAYOUT

(8

1587).....

............ I

..,...,.,1-2

,,.,..,,.....1.2

............... 1-3

.................. I

.................... I

......... l_5

..................

........... 1-6

........ I-7

................3_r2

................3-12

..................3_13

................

..............

.............. 4_ I

592).......,..4-3

..............

...................

.........

............

4_1

4_2

4_4

4-5

4_ 8

4_s

4- 1

...4_rr

..........4-t2

....4-t3

(81595).

. 4-14

.....4-rs

.......

4_16

...........

..........

...............

.............4-21

4_17

4_ l9

..4_20

4_2r

-

1

-3

-4

_5

I

3_14

4-7

0

Part

No. 74253

lst Printing

Printed

in U.S.A.

0l/97

4-23 LED 4-24 LED

4-2s TX

4-26

4-27

4-28 LOW 4-29

4-30

4-3t

4-32

TX AUDIO LOW

POWER AMPLTFIER

POWER AMPLIFIER

FM BOARD COMPONENT FM BOARD SCHEMATIC

DISPLAY

AUDIO BOARD

LEVEL DzuVERAI.B. LEVEL DRIVERA{.B.

DRIVER

BOARD

4-33 KEYPAD/ENCODER

4-34 KEYPAD/ENCODER

4-3s SWTTCH

4-36 SWTTCH 4-37 UPPER

4-38

4-39 LOWER 4-40 LOWERPOT.

UPPERPOT.

BOARD COMPONENT

BOARD SCHEMATIC

POT. BOARD COMPONENT

BOARD SCHEMATIC

pOT.

BOARD

BD. COMPONENT

BOARD COMPONENT SCHEMATIC

COMPONENT SCHEMATIC

SCHEMATIC

LAYOUT

(81597)...........

BOARD BOARD

(8161

LAYOUT

COMPONENT SCHEMATIC

LAYOUT

(81598)...........

(81598) ........

BOARD COMPONENT BOARD SCHEMATIC

LAYOUT

(81603)

LAYOUT

(81604).....

COMPONENT

SCHEMATTC

LAYOUT

(81605).....

LAYOUT

(81588)..

...............4-22

(81588). ..........4-22

(81597)..............................

LAYOUT

(81608)... 4-27

(81608). ....4-27

(8

1

I

6l

)............

1)...............

LAYOUT

(8

I s 89).

(81

(81603)

...............

..............

589).............

................4-34

.................4-34

(81604).....

(81605).....

..

.............

..............

.... 4-35

......4-35

..

....4-36

4-24

4-25

4-29

4-3 4-31

4-32

4-3 3

4-36

1

5-1 CONNECTION OF OMNI 5-2 RS CABLE

WIRING

CONNECTIONS........

VI PLUS TO COMPUTER....... ......5-I

............ 5-1

Part No.

lst Printing 0l/97

Printed in U.S.A.

74253

v,

The

OMNI VI Plus is

decades of engineering

transceivers.

The

OMNI VI Plus

phase

locked

oven timebase

for

superior

A large

the

operating frequency.

plays

for a 12 hour

included.

loop

controlled

phase

LED

display is used

The

ON{NI Vl Plus

synthesizer combined

performance

noise

Two

clock

duplex memories (stores

filter

settings),

ters, dual VFOs.

single keyer

break-in),

button

(mode

The

I

60 through

band change

A

OMNI VI

l0

SSB

scratch

or B).

meters.

(with

pad

direct

frequency

Plus covers

using

built-in

the culmination

in high

performance

features

crystal mixed

an advanced

and

for ease

additional

and zuTD(T

provides

also

both

VFOs.

memory,

and

all

CW

speech

band

entry

a built-in

amateurbands.

lwith

INTRODUCTION

oftwo

HF

with

an

oscillator

stability.

of viewing

smallerdis-

offset. are

100

mode

and

regis-

as

well as

iambic

full

or semi

processor).

(true

RTTY

filters can

band tuning

The

OMNI VI Plus

cessing for

nology

reduction.

tracking

available eration

provides

progammable

sidetone

Chapter

accessories.

ofthe

the OMNI

vides

more

provides

ter 4 schematics.

tion

about the

vide

some hints

lem

arise.

FSK

or AFSK),

be installed

and 9 MHz IF's.

several receiver

an

and an

I

ofthis manual

transceiver

VI Plus

detailed

all ofthe

Chapter 5 provides

computer

for

troubleshooting.

and FM.Optional

in both

utilizes

automatic notch

CW

audio lowpass

Chapter 2

in

operation.

operating

technical

interface.

crystal

the 6.3 MHz

Digital Signal Pro-

functions. This

filter, noise

hansmit offset with

filter.

covers installation

covers

orderto

basic op-

quickly

Chapter 3 pro-

instructions.

information

detailed

informa-

Chapter

should

a

pass

tech-

and

place

Chap-

and

pro-

6

prob-

Examine your

shipping

parent,

ately,

shipping

ommended you

ers in ment

packed

that

damage.

notify

stating

Retain

The

all damaged

damage

the event

becomes

following

with your

you

have

3 - #3s003

-

I

#35057

-#35263

|

-

I

#38040

OMNI VI

Should

the

delivering

the full

rests

keep

the

that

storage,

necessary.

hardrvare

OMNI VI

not

overlooked

extent

cartons.

rvith

shipping

Phono

4-Pin

1/8"

iambic

.050"

Plus

for

any

damage

carrier

of

the

damage.

Liability

the

carrier.

carlon

moving.

and

accessories

Plus.

Make

anything.

Plug

Mic

Connector

Stereo plug

keyerpaddles

Allen

Wrench

UNPACKING

signs

of

be

ap-

immedi-

for

It

is rec-

and fill-

or reship-

are

sure

for

-

l

-

1

#38088

#380s7

.062"

4-pin

Allen

Power

Connector

4 - #41020

-#74020

r

1 -#74253

-#74234

1

Female

Warranty

Operator's

OMNI

VI Plus

Connections

-

I

#86055

-

1

#27045

If

any of

contact

replacements:

Repair

the

the repair

Depaftment

Power

Spare

items

department

................

25A

are

at Ten-Tec

... 423 -428-0364

Switchboard...............

FAX.........

Wrench

Cable

Terminal

Pins

Card

Manual

Guide

Cord

AGC

Fuse

missing,

423-453-7172 423-428-4483

for

Part No. 7.1253

lst Printing

Printed in

U.S.A.

0l/97

vu

Model

SPECIFICATIONS

564

MODES FREeUENCYRANGE

DISpLAy

FREQUENCY

OFFSETTUNING

DUAL

VFO's

MEMORIES

PCINTERFACE

FREeUENCY

ANTENNA

CONTROL

ACCURACY

CW'

LSB,

USB,

All ham

30

7 digit to

memory

LO MHz

+l-9.99

bands

kHz over-shoot

l0 Hz

channel

generated with

phase

kHz, receive

with SPLIT

100 duplex

port

Serial

operation

TTL interface +l-

Hz

50

@

l-2 minutes

connected

50 ohm

to the

unbalanced.

FSKOTAFSK,

160 through

upper

at

resolution,

and offset.

a crystal

looP.

locked

andtransmit.

mode

memories,

of

provided. Runs at

are

25 degrees

the oven

while

rear

FM.

l0 meters,

and

.56"

oscillator

one scratch

receive

(NOTE:

C.

heats up when

panel

eliminate

to

twelve

lower band

LED,2

and transmit.

secondary

mixed

pad

memory

1200, 2400,

The frequency

this turn-on

kHz segments

500

edges.

.3" displays

a low

with

@attery

RS-232 and

4800,

will shift

first turned

noise

backup,

ICOM@

9600, or

on.

drift).

with

for clock,

-

4.97

yr.

2-3

compatible

I 9200 baud'

noticeably for

Leave DC

5.53

life)

power

REMOTEBANDSWITCHING

POWER

REQUIRED

CONSTRUCTION

DIMENSIONS

WEIGHT

TRANSMITTER

RFOUTPUT

DCINPUT

MICROPHONE

SPEECHPROCESSOR

INPUT

panel

Rear 2 A receive, 20A

20 Gl0 epoxy

panel,

front

less steel

bail.

HWD 5.75"

-

l6 lbs.

0-100 watts,

Maximum 250 Continuous duty

200-50K Ohms, accepts output. Polarizing

Adjustable compression

7.25kb

outputs

band

transmit

glass PC boards,

aluminum

chassis, texture

x 14.75" x

ALC stabilized

watts

@

with customer

voltage

for selecting

12-15 VDC.

@

most field replaceable.

17" - 14.6 x 37.5

for

level.

100% duty cycle

supplied air

with

electrets

I4VDC.

microphones

antennas or other

painted

and bottom.

top

x 43.2 cm.

for up to

cooling of

(0

-67dB

provided

dB

accessories.

station

Extruded aluminum

snap up stain-

20 minutes.

panel heat sink.

rear

:

lV/microbar)

vlll

Part No.

lst

Printed in U.S.A.

74253

Printing 0l/97

T/RSWITCHING

VOX

PTT or

on SSB, switchable FAST or SLOW

SLOW is adjustable.

on CW, delay

QSK

on

IAMBICKEYER

CWOFFSET

FMDEVTATION

METERING

SSB GENERATION

CARRIER SUPPRESSION

UNWANTED SIDEBAND

SUPPRESSION

THIRD

ORDER INTERMOD

SPURIOUSOUTPUT

RECEIVER

SENSITIVITY

SSB,

MODE

CW, FSK

FM

Adjustable l0

Programmable 400

matches offset, volume adjustable independent

+l-

5 kllz

Switchable level

on SSB.

Balanced modulator

60 dB typical

30 dB below

Better

than 45

-

60 WPM, type A or B, weight

-

990

to forward

Hz, DSP

power,

generated,

SWR, collector current

followed by 9 MHz,8 pole

at 1.5 kHz tone.

two tone

dB below

100

at

watts PEP.

peak

power

0. 16 uV for

0.35 uV for 12

l0

output.

dB SNR dB

SINAD

sidetone automatically

@

adjustable

of AF

from keypad.

gain

control.

or audio

crystal ladder filter.

2.4

kHz

processing

SELECTMry

FILTERCOMBINATION

9 MHz

2.4kllz

2.4kLIz

2.4kIIz

2.4kllz

1.8

500 Hz*

250H2*

Optional

kHz*

IF

Jilter

PBTIF

2.4UJIZ

1.8

500

250llz*

l.8kHz*

500H2*

250llz*

is required

D\T{AMICRANGE

THIRDORDERINTERCEPT

NOISEFLOOR

PHASENOISE

S-METER

kHz*

Hz*

97dB

@2.4

+l0dBm

-

I 33dBm

-l22dBc

Calibrated

TYPICAL

@-6

2.4kHz l.8kHz

500llz

250H2

l.TkIIz

350112

l90IIz

kHz

bandwidthat20

kHzbandwidth

@2.4

I kHz,

@

for

59:50

SYSTEM

dB

-

138dB

uV

BANDWIDTH

@-60

3.2kHz

2.7

1.3

850 Hz

2.4kllz

900tlz

550 t{z

kHz spacing,

c

kHz

@20

kLlz

kHz

dB

100d8+

with

Shaoe Factor

1.30

1.50

2.60

340

1.40

2.60

2.90

CW filters

Part

No. 74253

lst

Printing

Printed

in

0l/97

U.S.A.

tx

ATTENUATOR

PASSBANDTUNING

-20dB

+l-

1.5kHz

IFFREQUENCIES

NOISEBLANKER

AUTOMATIC

FILTER

MANUALNOTCH

DSPNOISE

DSPNOTCH

FILTER

REDUCTION

DSPFILTER

RECEIVERECOVERYTIME

SQUELCHSENSITIVIry

IMAGEREJECTION

I-FREJECTION

AUDIO

I st IF 9MHz,

Adjustable

Eliminates

200 Hz to 2.5 kHz,

2nd

threshold

multiple heterodynes,

Auto-correlation

typical depending

Lowpass audio

filter selectable

600H2, ormay be

less than 20 ms

less than .6uV

including split mode.

>90d8

>90dB

1.5 watts

fixed

@

output

4 ohms

I mw

IF 6.3MHz

greater

type algorithm.

(passband

than

on conditions.

in 5 steps,

disengaged.

with less than2

600 ohms.

@

IF),

tuning

notch depth

5 OdB. Adjustable

Broadband

o/o

automatically

noise reduction

1400 H2,1200

distortion, built-in

2nd IF

center

for FM

selected

frequency.

of 5 to

H2,1000

speaker.

455KHz'

each.

for

l5dB is

Hz, 800 Hz,

separate

SEPARATE

ANTENNA

RX

INPUT

50

phonojack, frontpanel selectable.

ohm

Part No,

74253

lst Printing 0l/97

in

Printed

U.S.A.

CHAPTER 1

INSTALLATION

1-1 POWER

requires a source of well

voltage. The

DC +12.0

to

+15.0

SUPPLY

supply

VDC but

VDC is recommended. The

be capable of

The TEN-TEC Model 962matching

supply is specifically designed This supply has built-in over and all of

Model 962 also

activate

from the

SPEAKER

22 amps.

the necessary RFI bypassing. The

has

this speaker,

power

supply into the EXTERNAL

jack

on the

The OMNI

filtered and regulated

voltage can range from

an

optimum

voltage

current

front facing

a

plug

the

panel

rear

YI Plus.

The four

of the OMNI YI Plus is mating

With

the Model 962, simply determine

rect orientation the

OMNI

If

an alternate

we

recommend

power

included

a connector shell

own cord. Be

stranded wire for the high

DC connector on the rear

plug

will only attach in

and

YI Plus.

power

that the

(p/n

cord

spare connector

current demand

86055)

(p/n

sure to use no less

these connections

polarized

plug

power

the

source is to

preassembled

be used. We have

pins (p/n

38057) for building

during transmit.

YI Plus

of

source

power

for

this service.

protection

speaker. To

phone plug

ll4"

of the OMNI

such

that the

one direction.

the cor-

cable into

be used,

41020)

than 14

gauge

because

+13.8

must

panel

DC

also

and

your

of

NOTE:

and then the

first

If the DC

by a

Always

lransceiver.

pohter

generotor

enable

source is supported

or olternotor, always

turn off the trsnsceiver

equipment is

These recharging

generote

might domage

l-2 ANTENNAS

against

matches

circuit. Operation

sible with an unbalanced

pedance

mately 2:1 or require the

best results.

an SWR higher

control lo a collector

20

damage from load

ranging from

between

SWR). Antennas

single wire

use ofan

NOTE: When

amps as indicated

started or shut off

large voltage

the transceiver

The

a dead

at or near full

25 and 100

and balanced

external

operating

than 2:1,

(Ic)

on the

power

the

source

before the

devices can often

spikes that

protected

transmitter

(coax

with

feedline

the transmitter

adjust

current

front

is

impedance mis-

short to an open

power

feed) load im-

ohms

antenna tuner

the RF

is

(approxi-

higher SWR,

types, will

"PWR"

not to exceed

panel

meter.

pos-

for

into

DC

Part No. 74253

lst Printing 0l/97

Printed in

U.S.A.

+

12 to 14 VDC

GROUND

FIGURE

POWER CABLE

REAR VIEW

OF

TRANSCEIVER

I.1

CONNECTIONS

The main

ceiver is

nector. In most

carry

front

MAIN.

used, connect

TENNA

nected antenna with

through

both transmit panel

receive

If a

separate

jack.

at all times

antenna

connection

the rear

installations,

and receive

ANT

receive

it to the

You

the ANT

rear

can leave

and

select the

panel

this

switch will

antenna is

panel

both antennas

selector

to the trans-

SO-239

connection will

signals and the

con-

be set

to be

AUX RX

desired receive

pushbutton.

AN-

con-

to

MICROPHONES

1-3

phone, using our

without

used

ramic,

also

phone,

gram

phone plug

ing

any

crystal

be

please refer to

in FIGURE

kit. Be

RF

with built-in

voltage

modification.

electret

or

When

used.

(p/n

35057)

to use

sure

interference.

preamplifiers will

available

VDC

FIGURE

MICROPHONE

1-4 CW

KEY

keying the

panel

KEY

straight

key, bug,

tion between

key the transmitter.

The OMNI

iambic

labeled

of

the

keyer.

KEYER

paddle. Refer

keyer

plug

Two

transceiver

phono

the center

YI

The rear

Any

four

type

adapting

connector

the

A spare

l-2.

is included

shielded

Electret

4.

at

'-1,]Qt

o'/l

,\""

*r

\'-;/

FRONT VIEW

1-2

CONNECTION

methods

in CW

jack

can be

or external

Plus also

panel

allows

connection

to FIGURE

TEN-TEC

connector,

Most

microphones

another

micro-

may

dynamic,

micro-

wiring

pin micro-

four

pack-

in

the

prevent

to

cable

types and some

require the

o"o

",.

OF 564

are available

mode.

keyer. A connec-

and the

features a built-in

1/8" stereo

DIT

The rear

connected

ground

to any style

1-3 and use

be

ce-

may

dia-

DC

for

to a

will

jack

CONNECTION

(pt1n35263) supplied

keyer

speed

KEYER

3-1.13

tions

the use

l-5 STATION

is essential

tem transmitter.

station

the heavy braid using suffice. water

flat

to connect

a

plumbing

Antenna

tion are

With

ods.

from the station,

wiring

is controlled

and

control.

formore

3-4

SPEED

the built-in

of

GROUND

for optimum

best solution

The

equipment

ground

linear amplifier

ground

A

also a

good

may

braid.

to a

connection

pipe is usually

and the

type

factor

resonant

AC

the

be adequate.

keyer.

ground

in choosing

1-6 CONNECTIONS

CESSORY

provided

been

tion equipment.

RTTY terminals,

phone patches.

cate detailed various

TEN.TEC

1.7

OMNI

EQUIPMENT

to

This includes

See the

information

equipment

ACCESSORIES

PLAS

VI

interface to

computer

to the OMNI

in the

packing kit.

the

by

Chapter

See

details

good

A

operation

front

regarding

ground

is to connect

chassis

a

together

Use another

rod. Ifyou

less ideal

ground

copper

to the

acceptable.

proximity

ground

antennas

ground

located away

in

length of

to

your

FOR OTHER

Connectors

variety of sta-

a

linear amplifiers,

equipment

Table of Contents

on how

to connect

YI Plus.

FOR

The

panel

Sec-

3,

sys-

of any

all

using

not

are

may cold

the sta-

meth-

house

AC-

have

and

lo-

to

THE

a

BUILT.IN

t-2

if

_,),

'a

\.,

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GND

l-I

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ll

FIGURE

ELECTRONIC

t

I-3

\

\),

KEYER

Crystal

216

217

218 219

Filters

-

500

-

500

-

1.8 kHz

-

250H2 6

Hz 6 Hz 8

220 - 2.4kHz

Crystal

282

285

288

Filters

-

250H2

-

500

-

1.8

Hz 6

kHz 8

for the 9

pole pole

pole

8

pole

8

MHz IF

for FSK

for CW

for

for CW

for

for the 6.3

pole

6

pole

for CW for CW

for SSB

SSB

MHz IF

Part No.

lst Printing 0l/97

Printcd in

74253

U.S.A.

Other Accessories

-

236

Remote control cable for Model420

Amplifier or Model 253 Tuner

-

238 239

257

259

264

607

701 705 962

RM-500

35057 80-572

2 Kw antenna tuner

-

100 Watt

-

Voice

-

ALC Annunciator

-

236

Model

-

Single Paddle Keyer Assembly

-

Hand

-

Desk Microphone

-

Matching Power

-

4

-

4

dummy

Synthesizer Board

expansion cable for connecting

4201253

Microphone

Rack

Mounting Kit

Microphone

DC

I-8 INSTALLING

All

optional filters install

IF board Refer

both located ceiver. To

transceiver

facing from

the cover

front

movable

circuit

l-8.1 INSTALLING

Remove

There are

for the

ure 1-4,

sition. The filters

installed

and

orthe PBT

to Figures l-4

on the bottom

remove the

upside down with

forward.

each

side of the

back out from

panel

extrusion.

Remove

the bottom

panels.

boards

the

three dedicated

three optional

plug

the filter into

in

either

Remove

The

underneath

panel

are

direction. Replace

cover.

load

combination

Supply

Connector

Connector with

pins

OPTIONAL FILTERS

either on the

(Pass

Band Tuning)

l-5.

and

These

side of the

bottom cover,

the front

two Philips

bottom cover

under

cover to expose

optional filters

6.3 MHz

covering

positions

filters.

polarized

non

the edge

panels.

these

IF FILTERS

the PBT

Referring

the appropriate po-

9 MHz

board.

boards are

set the

screws

and slide

ofthe

two re-

plug

board.

on

the board

to Fig-

and

may be

the

trans-

panel

into

PASS

BAND TUNING BOARD

STANDARD

2 4 kHz FILTER

lo

OPTIONAL

1.8 kHz FILTER

o

OPTIONAL

500 Hz FILTER

OPTIONAL

250 Hz FILTER

FIGURE

6.3 MHz IF FILTER

1.8-2 INSTALLING

Remove

board. There

tional Filter I

spond to the N-l

panel.

Plug

location.

are also non-polarized either

direction.

different

selectable

216,217

Models 218

Position

pins

on JGl

9MHz FILTER

panel

the

are two

and Optional

the optional

Like the

Because

amounts

jumper

gain

and2l9

and

jumper

the

and JG2

BOARD

covering the

empty filterpositions,

and N-2

passband

of loss,

require

220

plug

O

o

Model

288

Model

285

Model

282

1,4

INSTALLATION

9 MHz IF FILTERS

MHz filter

9

Filter 2 that corre-

buttons

filter into

on the

the desired

tuning filters,

and may

the various

to compensate.

the high

use the low

to connect

as

shown in Figure

O

JGI

be installed in

position

each

gain

J

z o

F

.""

filters have

Models

gain

setting.

the

correct

Op-

front

these

has a

1-5.

F

z

o

Part

lst Printing 0l/97

Printed in

No.

74253

U,S.A.

9 MHz IF

FIGURE

FILTER

1-5

INSTALLATION

l-3

OPTIONAL

I.9

BOARD,

MODEL

will announce

VOICE

board,

side

under

lift the

card edge

to

board

ing

can the

NOTE:

ferring

564 contact

o

button

remove

the top

of

edge of

the

cover

connector

Figure

voice board.

l-6.

powering

by

VOICE

the

be adjusted

you

If

it

from

the

LOGIC BOARD

VOICE

257

the display

pressed. To

is

two Phillips

the

cover.

off.

Slide the

the front

The voice

on the

Test the

the transceiver

up

SYNTHESIZER

Thevoice

frequency

install the

screws

cover back

panel

extrusion

board

Logic

operation

Board.

pushbutton. The speech

with trimmer

already a transceiver

factory for

own

Model 257 and

modification

resistor

other than

o

J't

\

L| ./

<

synthesizer

when

voice

on each

from

and

plugs

into

Refer

and

voice

press-

level

of the

R13 on

qre

trans'

Model

563

details.

READOUT

VOICE

(option)

the

or

incorporate

To

station,

shielded

the amplifier.

Figures 1-7,

insure

the transceiver eration.

a

I.T2

TEC

connections. USER

Change

oN.

FREQUENCY

1.13

ON OMNIYI

feature to frequency stability.

power

the

If this feature plyOFF.

a TEN-TEC

plug

remove

cables

propertiming is

that

the

connect

to

These

1-8 and

amplifier

and

connections

1-9.

INTERFACING AMPLIFIERS

You

OPTIONS

from its default

LCO

Refer

must activate

MENU

STABILITY

transceivers

Plus

keep the crystal

utilize this

To

supply ON,

is not desired

when

amplifier

jumper

the

to

These

maintained

during

WITH

#1

oven on

NON

to figure

the

(see

position

incorporate

the radio

turn the

the

into

use

and

lines of

key

are shown

connections

between

QSK

in

op-

TEN.

for

l-10

relay from

Table 3-1).

OFF to

AT TURN.

for improved

feature, leave

is OFF.

power

sup-

a

o

FIGURE

VOICE BOARD

OPTIONAL

1-10

EL 259

M O D

impaired operator

ALC ANNUNCIATOR

This accessory

to adjust

properly. Refer to the

installation

1.11 INTERFACING

procedure.

TEC EQUIPMENT

the rear

on

access to the

connectors,

These

normally

are

plug.

panel

of the OMNI

keying circuitry

labeled

connected

t-4

i1)

T.6

INSTALLATION

allows

the vision

MIC GAIN

Model

259 manual for te

WITH OTHER

phono

Two

connectors

Yl PIus allow

in the transceiver.

TX OUT, and

together

with a

control

TEN-

TX EN,

jumper

Part No.

lst Printing 0l/97

Printed

74253

in

U.S.A.

(REAR

vtEw)

(REAR

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56'

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MODEL

TX TX

50 OHM ANTENNA

INTERFACE

564

OUT

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FIGURE T.7.

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PORT

QSK

USING SHIELDED

SHIELDED

RG-58/U

MODEL

HOOK-UP

CABLE CABLE

OR EOUIVALENT

236 CABLE

WITH HERCULES

NOTE

PI-ACE THE MODEL

THE

II

AMPLIFIER

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420 rN

MODE,

(REAR

vtEw)

MODEL

420

IN

KEY KEY

OUT TX

RF INPUT

FIGURE 1.8.

REQUIRED

MODEL

TX

OUT EN

50 OHM ANTENNA

HOOK.UP

QSK

if

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ff

HPIJT

CONNECTIONS

564

WITH

(REAR

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USING

SHIELDED

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WITH PHONO

CABLE

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CENTURION

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TT

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PLUGS PLUGS

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Part No. 74253

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Printed in U.S.A.

l-5

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(l.---..-)

(-_--)

6^Ur€ED

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REQUIRED

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MODEL

INPUT

RF KFY IN

KEY OUT

REMOTE CONTROL

RF OUTPUT

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CONNECTIONS

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INPUT

RF

F

FUT

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253

CONTROL CONTROL

CONTROL

IN

OUI

MODEL 564

50 OHM

TX OUT

TX EN

INTERFACE

ANTENNA

PORT

USING

RG-58,/U

HIELI]LIJ CABLL

MODEL 235

RG-8,1U

WITH

CABLE

-DED

LDED CABLE

OR EQUIVALENT

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PL-259

F

WITH

PHONO

WITH

W

+ MODEL 264

PLUGS PLUGS

FIGURE

l-6

1-9.

QSK

HOOK.UP

WITH

HERCULES

COUPLER

AMPLIFIER

II

253 ANTENNA

AND

Part No.

Printing

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Printed

74253

0l/97

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(REAR

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NON

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-

REQUIRED CONNECTIONS

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RF

KEYING RELAY

NOTE

YOU MUST VERIFY THAT

REQUIRES

TO

GROUND. SEE

THE

RELAY

INPUT

ONLY A LOW

OUTPUT

(REAR

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f

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(N.0.)

AMPLIFIER KEY INPUT

DC CONNECTION

SHIELDED CAELE

3-6.15 REGARDING

THE

MODEL

564.

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FIGURE 1.I0.

HOOK-UP WITH

NON TEN-TEC

AMPLIFIERS

Part No. 74253

lst Printing 0l/97

Printed in U,S.A.

t-7

CHAPTER 2

GETTING STARTED

2-1 INTRODUCTION

of the OMNI YI Plus'

grammable many through menus

the keypad. All explained in

settings, as shipped

you

to

eration to more you

become

The

first

we

suggest

plained memory

a result

When power

crystal

to stabilize.

source

continuously

Section

2-2

INITIAL

from

the front

and forget" features

"set

using the frequency

of these operator

detail in Chapter

from the factory.

get

started. You

closely fit

familiar with

BEFORE

time

you

YOU

power

doing a MASTER

in

Section 2-4.2.

locations

of factory

or special

burn-in

is first

timebase

to the

1-13.

will

you

If

and no tum-on

choose

transceiver

FRONT

take one

Virtually

operation are

panel.

This

that are accessed

display

options

3. The

can customize

your preferences

the transceiver.

POWER

up the

This

settings

and testing.

applied,

UP

OMNI YI Plus

RESET

will clear

the

or two

to leave

on.

the oven

drift

will

PANEL

SETTINGS:

all aspects

pro-

user

includes

and

are

default

will

allow

the op-

as

as ex-

out any

that were

ovenized

minutes

power

the

will run

occur.

See

P8T.......... 12:00

NOTCH

RITDCT

PROC

MIC..........

PWR

KEYER

PROCESSOR

VOX.......

SELECT DESIRED

SELECT VFO

SPEED

OFF

SPLIT

RIT...........

XIT..........

OFF

LOCK

SELECT

SELECT FREQUENCY......

I-F

FILTER

See Figure

ferred

DESIRED

3-1

to in

the

knob

.......

....Full counter clockwise

Ignore for now

...

OFF

............9:00

Full

counter clockwise

............. Full

(no

VOX

counter clockwise

light. upper

MODE

......

CW, LSB,

"A" .................

USB, FSK, FM

use A/B

if VFO B

(no

OFF

.

OFF

set displayed. no

offset

displayed, no light)

SPLIT light

in

upper display)

(no

Numeric

. OFF

BAND

..

Use band buttons

Use main

or UP/DOWN

Select

2.4,

for location

of the

Arrow

all filter

controls

following paragraphs.

(no

light)

12:00

display)

button,

active

light

(no

light)

tuning

keys

lights

off-

off

re-

RF

...........

AF

...........

POWER

METER....

ANT.........

AGC.........

NOTCH

.........

QSK

ATTN

NB ...........

SQL..........

Part No. 74253

lst Printing

Printed in U.S.A.

0l/97

Full

Clockwise

............9:00

................

.........MAIN

.............

....... MANUAL (no

...

. Full counter

. Full

counter

OFF

(no

clockwise clockwise

oN

FWD

oN

FAST

lighQ

FAST

light)

2-3

OPERATION

antenna

connector. a clear area

button.

output

Ic

reading

position

2-3.1

ther LSB

to the rear

Adjust

power.

(collector

of 20

and check

SSB

or

Connect

panel

50 OHM

Check for

of

the PWR

Switch

current) position

amps

MODE

USB and

received

the

band and

control

the METER

or less.

for

a reading

OPERATION

key

a suitable resonant

ANTENNA

signals. Turn

press

the TTINE

to the desired

switch to

and

check for

Switch

the transceiver

to the

of 2:l

Select ei-

SWR

or less.

to

the

a

by

2-l

pressing the

button. vance gins

ceiver to

lighting

dicates

driven.

is bothersome Band crystal

control

duce

changing (Receive

RIT/XIT

To

See

2-3.2

mode.

ground will

tronic

fast break-in

to SLOW.

on

CW ing.

select

best

2-3.3 FM

While

the

flash.

to

generating full

is

setting

the

that

the

Tune

Tuning)

filtering

can

interference

fine

To

the

Incremental

knob

the

clear

Chapter

CW

closure

A

keyer

adjustments

other

offset

If narrow

one

reception.

MIC

ALC

the

often

tune

key the

can

Refer

frequency,

and

OPERATION

(NOTE: This

for use

FCC

the

Press the

In this

amount mit

MIC control

the

may

needed

microphone

mode

of FM

power. With

a slightly

find

with other

receive,

In

microphone's

speaking

control

LED

The

PTT

into the

until

indicates

output

control.

PWR

the

of

frequently.

too

light

transmit

receiver

influence,

control

on

be

the

transmit

to

RIT,

3 for

circuitry

to a SSB

adjust

position

to

desired

the

manipulated

nearby

from

receive

frequency,

Tuning)

adjust

the

press the

detail

more

OPERATION

the rear

of

transmitter.

be used.

also

switch

CW,

to Chapter

CW

adjust

mode

between

MIC

the

deviation

TEN-TEC

should

microphones.

adjust

the

as

such

keyer

filters

have been

PBT

the

Selectthe

is currently

29.0 and29.7

PTT button

gain

rather

brand

be set

higher

the SQL

(Push

microphone'

that

LED

the

the ALC

power relative

to avoid

Try

is being

signal'

PBT

the

receiver's

the

signal.

The

slightly

signals.

frequency

tum onthe

function.

receive

frequency.

RIT button

on offset

Select

panel

The built

you

If

QSK

3 for

sidetone

speed

control

to 12 o'clock.

or lower

the

KEY

not want

do

pushbutton

more details

and

installed,

control

FM

authorized

transmit.

to

adjusts

than the

microphones,

setting

(squelch)

talk)

to

ad-

be-

trans-

in-

This

over-

If there

(Pass

PBT

to re-

without

RIT

Use the

again.

tuning.

CW

jack

to

in elec-

volume,

weight-

the

for

mode.

by

MHz).

the

trans-

You

con-

trol

narrow

FM

in

sired,

and

Detailed

in Chapter

2-3.4 ceiver

MARIVSPACE KEY

The Hz depending

SPACE

tails

unit.

2-4 AFEW

SORS

transceiver

keypad manner.

line or

confuse

has

it is still

If turning

the using

2-4.1

method

selections Turn off button

CLEAR

does eration

2-4.2 MLSTER

memories

is

MENUS

Press andhold

on.

quieting

for

IF filters

mode.

up

set

receive

frequencies

information

3.

MODE

FSK

LSB

in

or PTT

frequency

line.

how

on

On

will

properly or

Spikes

an unforeseen

the

improved

possible

POWER

problem,

one of

PARTIAL

first

from

POWER.

turn

and

for several

return the

not

use a

and

to

Continue

signal

no

when

function

PBT

and

repeater

FM

If

VFO's

dual

the

and

about

mode

This

enables

and

the

A closure

transmit

will

carrier

logic

Chapter

to

a

ON

level

modem

MICROPROCES-

input.

inputs

of this

on

Refer

to connect

WORDS

rare occasions

not accept

it is

or surges

commands

operating

on

set of

microprocessor.

dramatically

have an occasional

to

and on

off

microprocessor

the

following

the

methods.

RESET

it will

as

POWER

MASTER

not erase

USER

Press and

seconds

transceiver

RESET.

OPTIONS

on.

RESET

return

factory

ENTERbutton

hold

to

the

presets.

ENTER

present'

is

disabled

are

the

rear

is

transmit

mode.

VFO's

panel

operation

with

SPLIT

use

dual

the

places the

the

on either

carrier.

a CW

the

for

or

may

by

MARK/

more

terminal

find the

is shifted

of

3

you

from the

erratic

in an

power supply

the

circumstances

technology

This

recent

in

does

Always

years

lockup.

resolve

not

must be

try this

memories

MENUS.

the CLEAR

hold

Continue

and release.

to

This

USER

Turn off

andturn

to

normal

erase all

will

OPTIONS

POWER.

POWER

for several

The

de-

is

re-

the

190

de-

may

but

reset

or

hold

If this

op-

sec-

aa

Part No.

lst Printing

Printed in U.S.A.

74253

0l/97

onds and

2.5 MAIN TUNING KNOB

JUSTMENT

spring loaded friction

just

skirt and turn

counter clockwise to tighten the amount of

seems a little off center

bezel after this adjustment, slightly so that it spins evenly

amount of drag, hold the rear chrome

the

The main tuning knob has a

pad

on the back. To ad-

the main knob body. Tum the

loosen

drag. If the chrome skirt

and clockwise

relative to the keypad

it

within

DRAG AD-

knob

can be

shifted

the bezel.

to

Part No. 74253

lst Printing 0l/97

Printed in U.S.A.

2-3

CHAPTER 3

3-1.00 FRONT

PAD

FUNCTIONS (See

button selections

ters, VFO

the ones

marked

stroke keypad

quently ceiver options

These

yond

Every

timize

mode

When

sure

We

also

load

during

NOTE.

quences

pressing

3-1.01 are

four

bands:

l)

Tune

tuning

5.00

Other Section

2)

Move

steps

3)

Change

desired

selection

you

and supported

used features

your

to fit

are

explained

functions

experimenting

effort has

your

transceiver

or enjoy

making

to

select

recommend

(Model239),capable

this

setup

Any

of these

can

be aborted

the

CLEAR

CHANGING

methods

up or

knob.

The

per

kHz

rates

using

3-4.

up

the

band

revolution.

are

or down

from

button.

PANEL

such as

and RITDilT

will

use routinely.

functions

or to customize

personal

in the following

tend

to be

during

been

made

all

of them.

these

proper

the

procedure.

multiple

button.

FREQUENCY

of changing

down

selectable

I

knob

a

or

band

the

Y

DETAILED

CONTROLS

Figure

band, mode,

with

status lights.

are used for

preferences.

and forget"

"set

the initial

to allow

whether you

initial

use

tunes

band

arrows

to

mode

ofa 50

of

at least

key

before

band

at

by the

quickly

band

adjustments,

and frequency.

completion

with

a default

user.

on

by

OPERATING

- KEY-

3-l)

Single

IF fil-

operations

All

are well

Multi-

less

the

trans-

These

sections.

setup.

you

to op-

operate

ohm

dummy

100 watts,

command

There

frequency

the

main

rate

Refer

in

100

kHz

the keypad.

pressing

are

fre-

be-

one

be

se-

by

or

of

to

the

INSTRUCTIONS

4)

Move to

entering it directly

below:

Press

Key

in the desired

sary to enter

digit. Pressing remaining

Example

Press ENTER,

Example

Press

sary

to hit

Example

Press

To

enter

preceed

The

numerical

button

To

bandswitch

enter

ENTER,

FEP

versed, you and an

the ENTER

Section

3-1.02

the

down"

may be using the

has no

inthe

option

exact frequency

3-4 for

TUNE

transmitter

condition

set

effect

particular

a

ENTER

every number

ENTER

digits with

1: Desired

2: Desired

ENTER,

ENTER

3: Desired

ENTER,

a frequency

the

"one.")

an exact

then

the frequency,

examples.

rJSER

(Frequency

must press

key

to start

details.

Pressing

and

in

anywhere

PWR

control.

in

the TUNE

desired

frequency

on the keypad as outlined

(Display

frequency.

now

shows dashes).

It is not neces-

down to the l0Hz

any

point

at

zero.

will fill

frequency 14.200.00.

1,4,2,

3, 7, 8,

0, 1, 8,9,

keypad

as

frequency, you

OPTIONS

is

CW. The

ENTER.

frequency

6, 5, 5.

after

the last

frequency

on 160M,

functions

shipped

as explained

This

feature

Entry

ENTER

can

the

sequence.

the

TUNE

equivalent

power

between

The

mode.

3.786.55.

(It

is not

digit).

1.890.00.

ENTER.

a

"zero"

as

from

the

must

may

MENU

Priority).

to bandswitch

be

typed

button

to the

output

0 and 100

gain

MIC

This

neces-

(NOTE:

a single

factory.

be re-

with

without

Refer

control

provides

by

the

must

press

in the

the

If

re-

to

keys

"key

level

watts

Part No. 74253

lst

Printing

Printed

in

U,S.A.

0l/97

3-l

convenient

a

and

SWR

3.1-03

make

First,

manual

in the

is fully

trol

notch

audio

interfere

not

select transceiver hold the

reference

This will

match

keyer

jack.

either

1/8" stereo

button

the

For transmit,

can be

The built-in

a single

See 3-5.14

receiver

setting

lecting

3-1.04

sideband

able in these

way

collector

This button

CW

that the

sure

position

counterclockwise.

down

with

activates

is already

button

CW

you

while

position the transmit

incoming

connected

or dual

KEYER

for information

response.

QSK

the sidetone,

filters.

USB/LSB

modes.

modes but

kHz and optional

for SSB signals.

able

key the transmitter.

be used

1.09

mit, advance

light

the output

3-1.05

modes and

keying

through

tor.

output

logic levels

put

condition

to

for adjusting

the

flashes on

is reaching

FSK

enables the

circuit.

the rear

This input

jack

of a

required at

less than

are

and equal

voice

Selects operation

The FSK

is typically

power

the

set

to

current.

selects

NOTCH

the CW

pushbutton is

andthattheNOTCH

This

Hz where

below

the

a standard

keyer

100

passband. The CW

a SPOT

in CW

use the audio

and

in the desired signal.

tune

signal

tone

mode. Press

signal

frequency.

key or an external

to the

paddle

rear

can be activated

connected

jack.

on

Other sections

adjusting

Selects

All of

the keyer and se-

the upper

the IF

filters are select-

only the standard

1.8 kHz bandwidths

Either PTT or VOX

See section

VOX operations.

the

gain

MIC

control until

peaks.

power.

full

This indicates

in

built-in

circuitry is controlled

panel

MARI?SPACE

modem or terminal

the MARMPACE

or equal

to 1.0 Vdc for

to or

frequency shift

connected to the

greater

than

check

level,

mode.

con-

places

the

it will

mode

the

once

and

as a

tone

precisely

to

panel

KEY

with

to the

selecting the

cover

and lower

2.4

are us-

can

3-

In trans-

the ALC

that

digital

the

connec-

FSK

unit. The

in-

MARK

2.0 Vdc

input

SPACE.

for

resistor

Vdc.

3.5

collector

SPACE

The OMNI

lower

shifted

displayed

All optional

tone.

in

able

filters

centered

Model

filters

PBT

FSK by

for

3-I.06

MODES

include into the

a SSB

ing

This

extra details

equipment

dem

This

an

with

Either

output

input.

sideband.

2120

by

up

frequency

this mode

(Models

pass

to

for FSK.

216

(Models

rotating

USING

Virtually

an AFSK

microphone

mode.

system

in setting

open

a

Yl

The

217 and

the

AF'SK

works

anticipates

will be operating

will be inverted.

shift

tone

will often

ment

switch ceiver

denr

signal

jack

input the

to

in LSB

The level of

equipment

is fed

orthe

level should

MIC control

that the

mixer are

Do not

AFSK.

rupt the transmitted

install

ceiver.

enough,

It may

a PTT

The VOX circuitry

especially

have a

copy incoming

mode.

the AFSK

is also important.

into the

rearpanel

microphone

not being

try to use

cause enough

line between

includes

circuit

standard

will

line

receives

Plus

oscillator

local

Hz so

generates

IF filter

narrow

the

but

219)

mark/space

The 500

and

285

PBT control

the

ON

available

all

generator

ofthe

input

well but

this

up

LSB mode,

in

In

"reverse"

signals

front

AUDIO

be such that

11 o'clock.

near

amplifier

over driven.

the speech

waveform.

the modem

for AMTOR.

own

its

level

the

of

or

MARK/

voltage

TTL

drive

FSK

however

input

an

that

an audio

positions are

MHz

9

properly

not

are

tones. Use

Hz and

282) are

clockwise.

THE

DIGITAL

digital

be

can

that

transceiver,

are some

there

mode.

that

receive,

output

panel

Most

transmitter

the

otherwise

the equip-

switch.

the trans-

with

from the

Whether

microphone

IN connector,

ALC occurs

This ensures

balanced

and

processor

distortion

Also, be

and trans-

will not be

pull-up

about

open

using

is

the

at

"mark"

avail-

CW

the

Hz

250

usable

systems patched

us-

mo-

the

this

Set

mo-

this

the

with

on

to cor-

sure to

fast

3-2

Part No.

lst Printing

Printed

74253

in U.S.A,

0l/97

NOTE: The rear

panel

erating

When operating

system is turned off

MIC

AFSK,

jack

3-1.07 FM

ters

receiver

PBT

and

operates with a fixed

width. Adjust

when

no signal is

panel

operate in

make sure the mike is not live.

SSB, mqke certain the AFSK

or disconnected.

Selects the FM Mode. The IF

are disabled in this mode.

the SQL

present.

PTT switch to transmit. In control adjusts

than

the transmit

TEC

microphone,

o'clock.

quire

Other brands of microphones

a

slightly higher or lower

is to use

FM

signal reaches

3-1.08 IF

pushbuttons

the IF one

MHz

2.4 the lected

bandwidth.

of three

PBT

kHz filter

standard

filter

instructions

Two more

tional filters

are

cascaded

bandwidth

page

vii

for a

shape factors

ters.

NOTE:

can be aborted

button.

3-1.09 VOX

the the meter button.

Any

VOX

(Voice

VOX

button. The VOX

The

the amount of deviation

power.

adjustthe MIC

enough microphone

a full

FILTER

above

SELECTION

the main tuning

The first

optional filter

(Pass

Band Tuning)

is already bandwidth, button again.

how

on

in the

is a

to install

buttons,

Nl and N2

fixed

such that

the resulting

combination

chart of typical

for various

of these multiple

before

completion

ADJUSTMENTS

Operated

should

clock

come on. Press

display will change

Transmit)

audio input and

porallel.

(squelch)

Press

When

15 kHz band-

quieting

for

the microphone

this mode the MIC

When

using a TEN-

control to 12

setting. The

gain

so that the

+/-

5 kHz

three buttons

positions

installed.

press

See section

MHz

9

deviation.

knob

in the

IF. A

standard

To return

the currently

these filters.

select

IF. Both

receiver

of both hlters.

bandwidths

combinations

key

command

pressmg

by

sequences

To

mode,

light

to the right

the GN

to

a

front

op-

fil-

The FM

rather

may re-

goal

Five

select select

6.3

to

se-

l-8 for

op-

IF's

See

and

of fil-

the clear

use the

press

of

(Gain)

2

digit

display between 0 I

to make all VOX

tons

-

1 5. Use the UP/DOWN

adjustments.

is interactive so adjust the VOX

desired transmitter the mike. Once

press

Now

the desired transmitter hang

Finally,

ing

signal and adjust the receive

press

DLY

AV

slightly higher

receiver

the Press ENTER. to memory and

mal

operation.

audio does not

3.1.10 CW

JUSTMENT

This will

key the transmitter.

adjust the volume hand display will level between

the selected level

3.1.11

SET

has used

operation. Some fer to use a preference

change the

ing

sidetone note,

the RIT/XIT

display will

quency to store quency

chosen.

3-1.12 CLOCK

24 hour

the numeric

choose the

graph and

activate the

SIDETONE

ADJUSTMENT

700 Hz

different

or

offset frequency

knob to

read

between 400

the new

automatically

clock

keypad.

USER MENU

3-4.

Select item

minutes,

action

you

(VOX

(Anti-Vox).

than normal. Adjust AV so that

All adjustments

the clock display restored to nor-

SIDETONE VOLUME AD-

Press the

Use the

of the tone. The indicate

00 and

and turn

as the standard

CW

as a tool

press

out the

offset. The

SET The

display can

beginning with

while speaking

have it

set,

delay) and adjust

time.

Tune to an incom-

trip the transmitter.

(Sidetone)

ST

audio tone but will not

UP/DOWN

relative volume

the

Press

31.

ST again to store

off the tone.

PITCH AND

Historically,

operators, however,

offset

because ofpersonal

when chasing

and the correspond-

the ST

adjust

to 990H2.

matches

button and use

the tone. The clock

selected offset fre-

Press

sidetone

the

time

be updated

To

enter a new time,

1 as described

CCd. Enter the hours

a zero if neces-

but-

The system

gain

for

the

into

press

ENTER.

Press ENTER.

audio

level

will be stored

button.

keys to

right-

upper

CW OFF-

TEN-TEC

offset for

offset that is

shown in the

CW

pre-

DX. To

ST again

audio fre-

through

para-

in

for

Part No. 74253

lst Printing 0l/97

Printed in U,S.A.

3-3

So sit back in your chair and relax. The Omni-VII not only has top of the line receiver

performance and everything else you need in a high-end tranceiver -- it's also very easy

to use. Spend your time on the air instead of reading the operator's manual. For complete

information on the Omni-VII and our Amateur Radio product line, visit our website or call

(800) 833-7373 for our current catalog.

It shouldn't feel like work.

www.tentec.com

OMNI-VII. It's that simple.

1185 Dolly Parton Pkwy., Sevierville, TN 37862. Sales: 800-833-7373 M-F 8:00-5:30 (Eastern Time) sales@tentec.com. Ofce: (865) 453-7172. FAX: (865) 428-4483.

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Proudly made in Sevierville, Tennessee USA

begin

The clock

sary.

is entered.

digit

last

3-1.13

nect

1-3. Use

trol

speed.

displayed

button displays

BUILT-IN

keyer

the

the front

adjust

to

The

and

now

weighting

shown can using

type

See the section

setting

dash being

is

mode

sent

one of

users

paddle

mode.

relative

adjusted

be

up and

the

The keyer

A or B using

this

completed

B, the

as the

the opposite

prefer

operation

3-1.14 DSP

LP button to

function.

response to

of this

ton

choices of 600,800,

are selectable

tons.

post-detection bandwidth of

CW

3-1.15

This adds

filter

down

for about

This feature

mode.

DSP NOISE

ton activates

DSP system.

the identifies desired

set of adaptive

a

will

IAMBIC

paddle as diagrammed

panel KEYER

exact

precisely by

set

the CW

then

indicate

the bottom.

on

to 3:1

by

speed

and

mode

keyer speed

dot/dash

plus

or

down arrow

can be set

mode

the

on the user

parameter. In mode

when the

sent

nothing else

and

keyer completes

paddles

latter style

this

behaves

LOWPASS

enable the

the audio

is

selectable

code"

"I

menus

paddles

are released

element.

of operation. Single

FILTER Press the

DSP audio

gradual treble cut type

a

path.

The comer frequency

by

2

seconds.

1000, 1200 and

with the up and down

is usually used

REDUCTION This but-

the noise

filters.

reduction algorithm

This system

signals

and tracks them with

Broadband noise is at-

the

counting

KEYER

weighting

pressing

button.

The

ratio. This

minus 30

buttons.

to either CURTIS

the

Some dual

when

Con-

Figure

in

SPEED

on top

con-

can be

(ST)

the

The small

and

weighting

ratio

percent

menu settings.

for details

on

A, the dot

released

are

will follow.

element being

and then sends

paddle

is

or

In

the same in either

lowpass

holding the LP but-

frequency

The

1400Hz

arrow but-

to limit the

path

the audio

mathematically

in

tenuated conditions.

3-1.16

Synthesizer

ton

the main

3.2.0

QUENCY

simplex quency)

that receive operation,

most likely

your

encourage

3-2.1

A orB

and

3-2.2 SPLIT

VFO A and filter choice

nario and

tion transmit 5

First,

A:B button.

opposite

button. frequency

transmit "up

simplex

SPLIT again.

by

has

lfthe

been

VOICE

will announce

readout.

TRANSMIT/RECEIVE

CONTROL

operation

are

there

allow

filter choice.

XIT are

If

independent

frequencies.

with reduced

choose

operating

you

to learn

SIMPLEX

(A/B

button)

all off.

OPERATION

VFO B store

independently.

control sequence.

that is listening

kHz above

equalize the

Now

VFO by

Tune this

and then

5."

you

are still

operator

This

much

as

simplex operation.

3-2.3

RIT OPERATION

VFO and each

value. Select

frequency,

15

as

optional

installed,

frequency

the

addition

In

(RX

and

methods

three

control

All three

QSK

one system

interests

and

all three

OPERATION

and select

Make sure

that the SPLIT,

frequency,

Here

You

The task

5".

"up

your

receive

VFO's by

two

press

SPLIT. Switch

pressing

VFO

release. You

and holding

5 kHz to

up

in SPLIT

you

want to call,

will return

You can

has its own

mode and

depending

dB

Yoice

Model

pressing this

257

displayed

FRE-

normal

to

of

transmit

of

same

operation

cross

You

matches

TX on

allow

speeds.

that best

techniques.

systems.

Select VFO

frequency,

Remember

mode

is atypical

find a DX sta-

will be to

frequency.

pressing the

the REV

the transmit

are now set

mode

and hear a

just

the transceiver

use either

independent

filter. Press

on

but-

on

fre-

and

band

will

We

mode

RIT

that

and

sce-

to the

to

press

to

RIT

3-4

Part No. 74253

lst Printing 01/97

Printed in U.S.A.

RIT.

frequency.

-

9.99 quency offset displayed should be added or

RIT/)flT

Use

The offset system tuning

kHz.

When RIT is on, the transmit fre-

is

shown in the main display and the

knob to change the

receiver

range is

subtracted

to determine the receive frequency. The main

display can be changed to include

the RITXIT

amount in the USER OPTIONS MENU,

tion ODP

caution if actual TX frequency is not immediately

ous when viewing

There are

ing RIT

next time

return). hold for leaves RIT

CLEAR

you

If

mation,

3'2.4 XIT

as RIT

reversed.

the

main played played

3-2.5

TION

both are

the offset

transceiver the main

dant

ample,

contest

kHz

above

station, using

plex

press

and

your

3-2.6

(offset

you

display

select this display

the displays.

three methods of

to zero. Press RIT to turn it

your

turn RIT on, the same

The second method

I second. This

on. The third method

and RIT

switch to

stays on and returns

the other VFO,

including RIT

OPERATION

except the main

The receiver

display. Adding

offset value

equals

the transmit

SIMULTANEOUS

Both

functions

activated,

displayed.

frequency

but there

you

are running

using

your

on the interfering

XIT

original

CROSS

you

is a

RIT.

Another

transmit frequency.

RIT. Press

off. Your

transmit

BAND

preference).

quickly

press

is to

clears offsetto zero

all of the infor-

status, is

and

stored.

This

works the

offset displays

frequency

or subtracting

to the

main frequency

frequency.

RIT/)ilT

can be

are

The RITXIT

to

the displayed

display. This

good

XIT.

station.

frequency.

OPERATION

activated.

operating

application.

your

own

station

You

Ask him

station

is now

seems

Exercise

option as the

obvi-

return-

(The

off.

off'set will

RIT

press

is to

to 0.00.

same

is

shown in

the dis-

dis-

OPERA-

When

simplex

knob

sets

offset,

redun-

For

pile-up

calls

Tune

are now

CQ 1

in the

to

QSY

back

in

sim-

This is

+/

op-

and

are

at

the

not

ex-

at

most commonly required on l0 meters. ample

mitting above 285MH2. Although transparent to the operator, each

kHz. These

receive/transmit

You

and a manual transmit

on rear

3-2.7 CROSS MODE

operating on one

is

and the transmit setup in

SPLIT

ing transmit.

3.3-0 THE MEMORY

three

frequency

isters

stored,

ries may

scribed in

scroll),

tune, automatic

NOTE. Any

quences

pressing

a

3-3.1

First,

To store

pad, press

An audible

stored recall

one

is listening

splits can be

may wish

panel

permitted.

mode

types of memories:

One scratch

Band

general

100

Each

for

Put

to activate

register

will

store mode,

to use PTT

band or cross band, cross

pad

purpose

information,

do not

it may

be

used in

store

be recalled

detail in

(memory

MT

band

of

these

can

be

aborted

the

CLEAR

USING

make

(if

this

second.

SCRATCH

sure that

a displayed

> M

vFo

beep

annunciator

press

data,

Scratch

An

below 28.5

band

switching time

switch

MHz and trans-

position

programmed

(not

in the MUTE

covers 500

will

be

VOX) on SSB

but the

longer.

iack

CW operation.

OPERATION

Whether

mode

the receive setup in VFO A

VFO B. Then use

the opposite VFO dur-

SYSTEM There are

memory

for

each ham band

memories

filter

RIT

split.

one

this

tune),

selection,

and XIT.

Once a memory

at any

time. Memo-

of four ways

section:

MS

automatic

split

Band reg-

as

(memory

memory

SCAN.

multiple

key comtnand

before

completion

button.

PAD MEMORY

MS

frequency

and hold

will

sound when

feature

M

pad

and MT

>

contents

are both

in the

for

is

activated).

vFo

will retum

OFF.

scratch

one second.

the

data is

and hold

ex-

is

de-

se-

by

To

for

to

Part No. 74253

lst

Printing 0l/97

Printed in

U.S.A.

3-5

active

the

3-3.2

register

quickly

of

a

on

Press band

quency. Press band button changed

button

change.

3-3.3

the desired

stored. Split,

active.

right hand display

numeric

00 to 99 and the

tomatically. If

nel number,

simply be stored

case, the unused channel

selected

allow

sired.

play

nel

number to be replaced

or abort by

VFO.

is

BAND REGISTERS

for each ham

band.

switching between

Tune VFO to a desired

band.

button.

back to

pressed,

is

Tune VFO to a different

the frrst one. Each time band

the two frequencies

MEMORY STORE

frequency, mode and

RIT and

Quickly,

XIT will also be

press

will change to

keypad, enter a channel

There

provides

It

two frequencies

frequency.

again. The frequency

Set transceiver to

I-F filter

M

vro

F

. The lower

Using the

__.

number from

information will be stored au-

press

you

when

ENTER and

not wish to assign

do

the "_

prompt

_"

the information will

in the next unused channel. In this

number

automatically

will be displayed for a few seconds to

you

If

will

note that channel number,

to

all channels are

in use,

the

"_

remain. You can either enter a chan-

with

the current data

pressing

CLEAR.

band

one

a method

fre-

will

ex-

to be

stored

achan-

appears,

if de-

dis-

_"

3-3.4 MEMORY RECALL BY CHANNEL

M

_"

will

> vFo

appear. Enter the de-

. The channel

to 99, using the nu-

in

data

be displayed butthe receiver

that memory

on. Use the main

was

press

MS again.

channel

Press

memories.

pressed.

To en-

To

NUMBER Press

display sired channel

meric

will

prompt

"_

number, 00

The

keys.

transfer to the active VFO(s).

3-3.5 USING MEMORY SCROLL

MS. Note indicator light is now

tuning knob to scroll through the

memory will

Each

will remain as

cancel memory scroll,

set before MS

ter a displayed memory into the transceiver

while The transceiver

recalled data.

3-3.6

Tune through

transceiver is active on

The

is displayed. To cancel

again.

memory

using

will

USING MEMORY

memories

To

a displayed channel

enter

scroll,

become

press

active

TUNE

with main tuning

each channel

memory tune,

VFO(s) while using memory tune,

M

>

tween MS and MT at random.

3.3.7

if

Press and hold MT for one second.

will scan through

cally. The UP/DOWN

just

the scan rate.

into the VFO(s),

rarily stop scanning,

cel scanning,

You can switch back and

vFo

AUTOMATIC MEMORY

memory channels

buttons are used

To

enter a displayed

press M

press

clear.

press

> vFo

hold MT. To can-

and

3-3.8 AUTOMATIC BAND SCAN Allows

the transceiver to scan between two cies within a ham

quency

is

the currently displayed frequency and

band.

the ending frequency is

register. To

band

the MS

DOWN

button for about one second. The UP/

buttons can be used to change the scan-

ning rate. The from

the beginning frequency until

begin scanning,

scan

rupted. The direction

controlled

be

which limit is

by

The

beginning

the one stored

will

continuously repeat

frequency

ofthe

beginning of the scan.

To

stop the scan and stay on that

press

ENTER. To cancel the scan and return to

the original VFO frequency,

3-3.9 LOCK Allows

tuning knob from tuning

(A

or B). The other VFO is still available for

tuning. Also

provides

access to

press

user to

the

only

USER OPTION

MENUS as explained in next section.

M

) vno

using

Press

press

into the

press

forth

TUNE

Transceiver

automati-

channel

. To tempo-

frequen-

press

and hold

it is inter-

scan

chosen

frequency,

CLEAR.

lock

the main

selected

the

MT.

knob.

as it

MT

be-

to ad-

fre-

in

the

can

at the

VFO

3-6

Part No. 74253

lst Printing 0l/97

Printed in U.S.A.

ITEM NAME

TABLE 3-I USER OPTIONS MENU

DESCRIPTION

SETTINGS

MENU

Id

ANC

CCd

LCO

INt

MENU 2

bd

C-Id

I

Station ID reminder. This activates an audio beep every l0

minutes

Audio annunciator

feedback for

provide report

Continuous Clock Display. This item controls the

If it is set to

Linear

used for keying

Readout

backlight

Baud rate selection serial

This sets the

checked by

properly

as a notice to ID the station.

selection.

keypad button closures. ALL sets some

a CW character when

a single beep. OFF turns off the audio report.

OFF, then no clock readout will be

Control Relay. This item enables

non

QSK

intensity. The

can be set with this item.

for both the RS-232 and

This item

pressed.

controls the type of

bp

sets all buttons to

internal

the

amplifiers.

brightness of the readouts

the

port.

address byte for the

your

route

its commands.

third

party

transciever.

logging software

This

so that it

buttons to

clock readout.

shown.

relay

and meter

"SPORT"

setting

can

ALL, OFF,

1200, 2400, 4800,

9600,19200

is

04, 00-64

ON

OFF,

ON, OFF

OFF, ON

-1s

0

bP

cdE

I

CODE

MENU

FEP

bCP

Enable/Disable controls from

Selects

3

Frequency the numeric

sets

Band the last to the same relative position

whether

the front

the operating

the keypad for

Change Preference.

used frequency.

of

the transceiver

panel

Entry

Priority.

keypad.

the

Continuous Date Echo

automatically reports

the

over

mode of the

port.

serial

built-in keyer.

This sets the

LO sets the keypad

direct frequency

Ifset

entry.

to Full, band

partial,

to

on the next band.

mode. This

primary

to a

bandswitch.

changes return

band

changes

function

move

i.e. 21040

of

OFF, ON

A'B

LO,

HI

to

F,P

14040.

Offset Display

shows the

follows

Sets the tuning

modes.

the

Sets

modes. In

Preference. If

transmit frequency.

any RIT offset.

rate

of the main tuning knob

per

In kHz

tuning rate

kHz

turn.

of the offset

per

turn.

set to OFF, the

If set ON, the

tuning knob in

main display

in

SSB/FSK/FM

always

5.0,2.5, 1.67

4.8,2.4,1.2,0.6,

OFF, ON

,

1.0. .83

0.3, 0.15

Part No.

74253

lst Printing 0l/97

in U.S.A.

Printed

CSP

CrSP

Sets the rate

turn.

Sets the rate

turn.

The

selection shown in

of the main

tuning knob in

of the offset tuning knob in

indicates

bold

the factory setting

CW mode. In

per

kHz

per

kHz

or default.

5.0,2.5,1.67,1.25 L0, .83

4.8,2.4,

1.2,0.6,

0.3..15

USER

3-4

three

these

to tailor

preference. To access

LOCK

the

will ask "choose",

out

numeric

the

you wish to

lected.

through

buttons

switch

ton once

pletely,

Refer to

each menu

3-5.0 OTHERFRONT

(Refer

3-5.01

METER control clockwise

to 100

up

wise

does

meter to Ic collector

the

adjust the

20 amps.

OPTION

hidden

the transceiver

button

keypad

modify.

the main

use

items.

the

modify

to

to another

then select

press

Table 3-1

and a

to Figure 3-1).

menus

for

Use

the

menu,

the

LOCK

description

the

about

depending

Once

twice.

RF OUTPUT

to FWD

(forward

for the desired

watts output.

not result

in 100

PWR control

Read 3-5.02 below

tion on SWR.

3.5.02

POWER

available.

2:l

under

not

SWR

reads SWR

high SWR,

of

an

3-5.03

PTT or VOX activated, phone

just

FORWARD

Anytime 100

the most likely

range or higher.

this condition

permit

it to draw

(reflected power)

directly, on

antenna tuner should

The transmitter is

by a current

the cause

MIC GAIN

normal operating

at

gain

MIC

control

MENUS

permit

to match

menus,

2 seconds.

Press either

a menu

tuning

The items

operator

the

personal

their

press

and hold

The read-

l, 2 or 3

which items

on

has been se-

knob to scroll

the UP/DOWN

status of

press

new menu.

for a list of the

each item.

the LOCK

To

exit

items in

of the settings.

PANEL CONTROLS

POWER

power)

(PWR)

and turn this

power

NOTE: If full clock-

watts

output, switch

current

position

for an Ic not to exceed

for more informa-

AND REFLECTED

watts output is not

cause is SWR in the

protected

limit that will

more than

position

the bottom scale.

should be corrected or

be used.

21

amps.

on the

In

ADJUSTMENT

your

speak

into

voice level and ad-

so the

ALC light

micro-

in

on

Eurow

To

but-

com-

Set

level,

and

The

meter

case

With

just

blinks

3-5.04

PROC

to PROC.

voice

just

scale.

adjust, peaks.

NOTE:

even in

interferring

the PROC

3-5.05

Because

able never

perience

3-5.06

blanker is designed

gine noise and noise from some common appliances.

adjust the N.B.

ence.

maximum

in use.

peaks

pulses

blanked

CCW

may sound

3.5.07

(AGC)

maintain a

a wide range of

operators

signal conditions

ered

wise and using

on

SPEECH

(processor)

Adjust

peaks are

beyond

Now,

as needed,

The

receive

position

-2OdB

of the outstanding

dynamic

need the ATTN

receiver overload,

PROCESSOR

switch PROCESSOR

in the

half scale

check

the MIC

for

processor

ALC light

mode. To

with the

S meter, switch

when

RECEIVER

range of this

Switch

ON.

heavy black

the bottom

on

gain

meter

function

prevent this

it is not being

ATTENUATOR

selectivity receiver,

feature. Should

turn the ATTN on.

NOISE BLANKER

pulse

for

ignition, many commontypes

When

such

noise such

noise is

present,

control for minimum

Always leave the N.B.

counterclockwise

position

This

on a strong SSB signal

noise

to the

blanker.

if the N.B. control

position

badly distorted.

the received signal audio

and

position

is off. NOTE:

look like noise

These

is not in the full

AUTOMATIC GAIN

ON/OFF

relatively constant audio

will

with the AGC off,

The function of

received signal strengths. Some

that under extreme

argue

better intelligibility

the AF

gain

the RF

control for a vol-

setting

blinks

control in the

gain

peaks.

voice

USE

Press

METER

control

until

line range

PROC

and re-

on voice

is active

from

awayfrom

used.

and us-

you

may

you

ex-

noise

This

as en-

ofpowerline

household

simply

interfer-

when not

Voice

peaks

will

be

CONTROL

AGC is to

level over

weak

is deliv-

full clock-

3-8

Part No.

lst

Printed in U.S.A.

74253

Printing 0l/97

control. Use caution

ume

one hand

keep

signal more commonly used setup gain volume control.

active.

appears nearby,

full clockwise and using

3-5.08

FAST/SLOW

time constant of

rule, use

as RTTY, and FM, weak SSB and CW signals.

Use SLOW AGC on strong SSB and CW sig-

nals. This will minimizethe noise level

between voice

3-s.09 AUDrO TROLS

will always

use the AF control for audio volume

justments.

alternate methods.

3-5.10

receive,

clockwise

meter switch

brated

3-5.11

cuit in the to

trol

ing.

NOTE: FM

ently

S-METER When

is functional,

position.

at 50uV.

SQUELCH

a clear frequency

just

authorizedfrom

onthe

If AGC is off,

AUTOMATIC GAIN CONTROL,

This

the AGC circuit. As

FAST AGC

peaks

(AF)

general

As a

be set at maximum clockwise

See 3-5.07 AGC

the RF

gain

position,

Each S-unit is

FM mode

into

the threshold

operation

3-5.12 PASSBAND

one of the most

trols.

It allows

and forth

used to

"drop"

you

across

QRM

useful

the desired

when using this

gain

RF

control. Ifa strong

it will be very

is the AGC on, RF

AF

"S"

switch

on

and

AND RF

rule,

selects the

key-down modes

characters.

CW

GArN CON-

the RF

ON/OFF above, for

the transceiver is

control at the

and AGC

regardless

is ON,

of the

6 dB. 59 is

This control is

only. Select FM mode,

and adjust

the squelch

for receiver

on the HF

29.0 to 29.7

bands is

MHz

TUNING (PBT)

of all ofthe receiver

to move

out

of one side

passband

the

signal. It

setup,

loud. The

gain

for the

meter is not

decay

general

a

such

received

gain

control

and

level ad-

maximum

the S-

METER

cali-

in the

cir-

tune

con-

quiet-

pres-

only.

This

con-

back

can be

or the other

in

is

passband

the

of

prove

the

Typically

on SSB and 2:00 and may

lected.

such

trol

to balance the amplitude of the

signals and to deal

will normally be

vary depending on

When operating any

as RTTY, AMTOR or

position

3-5.13 USING

or it can

quality

the operating

and

CW will stay

will center at about 3:00. Use

THE

simply be

intelligibility

position

between

right at

which I-F filter

ofthe digital

PACKET, the con-

with

QRM.

CARRIER

used

of

of the

10:00

12:00. This

mark and space

NOTCH

Two different notch filters are available

moving

notch is a narrow

be

panel at all times and

tal mode signals. When

control should be left fully

where it will

with a

tem. The NOTCH pushbutton

tion. There is no

automatic notch,

constant carriers

notch works

ful in

desired

3-5.14

controls covery after key

allow the CW

in"

slower recover

tors that

ing

set

the DLYbutton. select a setting also controls the hane

interfering

tuned from 200 Hzto

carriers. The MANUAL

but deep notch filter that can

2.5 kHz using the front

NOTCH control. This notch is

works well with

not in use, the NOTCH

counter clockwise

not effect

The

AUTOMATIC

special digital

well

CW as it

signal.

FAST/SLOW

QSK

quickness

the

operator

up to about

QSK

25 words

SLOW

time.

prefer

short breaks in

the

QSK

to keep

delay,

between

in the receiver

also tends

up.

Use the

the audio

notch is implemented

algorithm in the DSP

frequency

it will

for SSB

adjustment

seek out and

mode

to NOTCH

of the receive

The fast

to operate

per

minute.

allows

the user

This feature

the receiver

their

CW transmission.

select

CW mode

UP/DOWN

01 and 15. This

time

of the linear

CW and digi-

passband.

enables this func-

passband.

is

but

pushbutton

This

audio re-

setting will

QSK

"full

to select

is for

muted

then

buttons

to im-

a signal.

control

and

is se-

modes,

PBT

for re-

available

sys-

for the

null all

This

not use-

out the

break-

a

opera-

dur-

To

press

to

setting

control

Part No, 74253

lst Printing 0l/97

Printed in U.S.A.

3-9

in CW

relay

plugging a hand

by

tirely

mit/receive

mode.

switch

can be ovenidden

QSK

or foot operated

into the

rear

jack.

3-5.15

ILIARY

connected

on the

separate

the

select

nected

ternally

3-6

fer to

3'6.01

jack

speaker.

AF control.

jack

3-6.02

connector allows

personal

a

signments.

ANTENNA

If a traditional

through

panel, select

rear

receive

rearpanel

AUX.

to the transceiver.

REAR

AUX

Both antennas

proper isolation.

for

PANEL CONNECTIONS

Figure 3-2).

EXTERNAL

supplies

is used.

audio to

level is controlled by

The

Built-in speaker

INTERFACE

computer.

This

with TEN-TEC

420 Solid StateLinearAmplifier. and extension cables dard straight thru computer.

3-6.03 MARXTSPACE

cuit on

nected

the digital

to FSK output

minal unit. Logic

or equal to

greater

TTL level or open

dard

drive this

3-6.04

with the front

1.0 Vdc for MARK, equal to or

than 2.0

input.

AUDIO

panel

SWITCH,

transceiver

the SO-239

MAIN antenna.

antenna

RX ANTENNAphono

is connected

may

They are switched

SPEAKER

an external 4-16 ohm

is muted when this

PORT This 25

direct RS-232 interface with

See Chapter 5 for

port

is

accessories such as the Model

are available. Use a stan-

serial cable to connect to

modes and is typically con-

jack

used

also

Controls the

of

levels required are less than

Vdc for

SPACE.

collector output will

IN This input is in

MIC connector.

panel

MAIN/AUX.

antenna

connector

coax

through

remain con-

This 1/4"

front

interface

to

Accessory

FSK cir-

a modem

Either a stan-

parallel

Input

en-

trans-

MUTE

If a

jack,

in-

(Re-

panel

"D"

as-

"Y"

your

ter-

or

level

gain

is adjustable

3-6.05 mw

@

phone

as

is

3-6.06

wire computer

2

els.

3-6.07

forprimary

input

tionl-1

3-6.08

station

3-6.09

lines foruse

jumpered

be

TEN-TEC amplifier

not transmit.

3-6.10 ceive switching

used to over-ride

3-6.11

mode other than CW. This

PTT connections on

the

nector. Generally

as digital

3-6.12

external, CW

3-6.13

to operate built-in

l,

ter

Section

3-6.14

erates at

ered from this

necting to or disconnecting

by

AUDIO

ohms,

600

patch

SERIAL

OUT

or digital

Fixed

intended

PORT

control

four

POWER

wiring

for

A

power.

dc

information.

GND Groundpostto

ground.

TX OUT/TX

with TEN-TEC

when

MUTE

PTT

Use

not connected

or the OMNI

Input for manual

such as a

QSK fortransmitter control

level

for accessories

equipment.

mode

1/8"

This

TTL

using

connector

Chapter

See

be

EN Amplifier

QSK

hand or

on CW mode.

is in

panel

front

used for external systems such

gear.

KEY Connection

key or keyer.

for an independent,

KEYER To connect external

electronic

1-4 for wiring

+13.5

AUX

13.5 Vdc, less than2 amps,

jack.

V

Turn

keyer. See Chap-

information.

Any accessory that op-

power

off

from this

panel MIC

front

control.

out,

audio

jack

allows

logic

is the

1, Sec-

attachedto

control

linears. Must

through a

VI P/zs will

transmit/re-

foot

switch

on any

parallel

MIC con-

paddles

be

jack.

pow-

can

before

I

such

lev-

the

with

con-

3-10

Part No.

Printing

lst

Printed in

74253

01/97

U.S.A.

3-6.f5

amplifier

QSK

capacity.

Section

normally

TroN

MENUS

RELAY

[N.O.l

Used

requiring heavy

is

Delay

3-5.14.

turned off, see Section

adjustable

To

enable

(LCO).

to control

relay switching

in

this

SLOW.

QSK

relay which

3-4, USER

non-

See

is

OP-

NOTE:

FIER

VOLTAGE

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tenna switch, main connected

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the transmitter

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are

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4-2

DC POWER

This module

pass

filter

cage at

On the rear panel,

brings

fast

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through

nector

by Dl

volts. from

+13.5

in

blow

On

power-on

the

l.

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transistor

closing

VDC

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AGC25

the DC

panel

front

Over voltage protection

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Ql.

Ql

the relay.

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circuit

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OMNI VI

drawings

rNPUT

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the

back

the DC

through

should

Power

relay

Kl.

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the

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will

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Resistor

DESCRIPTIONS

The

following

descriptions

circuit

board

Plus.

and

subas-

Also

photo-

components

BOARDS (81s91)

of the

Power

fuse

Input

Q2

voltage

inside

be used

board,

the

transceiver.

connector

Fl.

Only a

here.

Q2

is

biased

switch

at con-

provided

is

exceeds

and keep

R5

samples

sec-

and

in-

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con-

on

16

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AND ILLUSTRATIONS

the current

module.

through board

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Audio board to the

panel

lines is ating frequency of the transceiver.

passes

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power

SWR bridge transformer T1

antenna connector. Bridge transformer associated circuitry discriminate

ward and reflected

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pass

low

detection.

circuits.

Six band

enter at connector

-

K13.

of the

high

The 100 Watt RF output

through one of the selected

is energized by "T" voltage. The then

FILTER BOARD

module contains an anay of six 5

output

These band lines also exit

OMNI VI. Only one

at any

proceeds

filters, the T/R switching

coupler

and diode switched receive

lines from the BPF/Front End

L6-L11 and energize relays

25-pinconnector

one time

through

power

for forward

14 where

routed

through the TX

on the rear

based on the oper-

of the PA

low

of relay Kl,

primary

the

to the rear

between for-

to develop

drive volt-

and RF me-

they

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(81592)

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pass

at con-

pass

output

of the panel

Tl and

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receive, Kl

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ther applied

7. The front

selects

R24 for the AUX receive antenna

13. When

voltage is applied through R24 to the emitter of

Ql.

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the Main Antenna connector

the receiver front end at connector 17.

AUX. Antenna selected

through lowing the auxiliary receive antenna signals to

pass

passes

tenna connector. A small sample

mit signal is

doubler Dll -

volts of reverse

and

transmitter signal from leaking

front

R27 for the main

This

M7

through to the receiver front end.

During transmit, relay Kl is closed and

the filtered

D8

to

end.

on the

to R24 or

panel

the Main Antenna is selected "R"

turns on

to turn on diodes

passed

D14. They

protect

9 MHz

is open and "R"

M7 through

mounted

and

Ql

PA

output to the Main An-

through Cl2 to voltage

bias for diode switch D6, Dj

these

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receive antenna

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mixer and

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protects

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is set to the

MHz.

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BOARD

END

module

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meter bands

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handles the

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mixer

transmit mixer, transmit

pass

amplifier.

filtering.

incoming signals

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-20

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the

receiver, especially on the

are selected from connector 86.

attenuator network

dB

panel.

below about

filter switching diodes

signals.

create a tuneable

receiver's IF frequency

where the

pass

band

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receive func-

preamplifier,

RF

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pass

high

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1.6

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the

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Q5,

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ter on

connector

filters

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figure.

mixer D31.

mixer amplifier

protect

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out

grounded

The

about

by

QlO

through

grounded

the 9 MHz

25.

transmit, the

On

Ul, translates

nector 27 to the desired The mixer output plied

to the band

wanted

carrier. routed Driver

mixer components

Once filtered, the

from connector 24 to the Low

Board.

the

signals

performance of

gate

9 dB

It's output

LO drive

and

Ql

matching

gate

is

9 MHz two-pole

crystal filter

the transmit

is amplified by

pass

filters which

front end

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to the

l The

for about

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active

IF signal

operating

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mixer output

transformer

stage

Q6-Q9.

monolithic

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from the transmit

transmit signal

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stage,

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4-5

4-5 9 MHz

(81782)

grates

ceive this board

tering for both

transmit and receive functions.

sampling

cluded and all the metering circuitry

CRYSTAL

The

9 MHz Crystal Filter module inte-

performs

FM

and SSB/CW. Noise

and noise

Receive signals from

Mixer enter at conneitor 25. Two

works match a2pole monolithic

the 50 ohm system.

protects

filter

circuits further down from

FILTER BOARD

the first narrow fil-

gate

circuitry

Front

the

This

15 kHz bandwidth

are also in-

is included.

tuneable net-

filter, Yl, into

out of band signals. This is especially

tant to the operation of the noise

blanker and

FM detector.

The

by

band

filter

needed to ahead of the offending noise

gate

in time

the

ladder filter is

which drives buffer

Ql,

pass

filter of T2, T3

adds the slight amount

get

T4, T5 and diodes D1-D4,

prevent

to

narrow fiter Y2.

tivity. Two

selected with

tons. These

series with the responses

between the noise figure the loss

is

accomplished

filter

band signal at connector

then

trolled attenuator, D18

mit

carrier at the

add. A low

of several different

On transmit, single

to strip off one

amplified by

and D19, regulates

The control

limited

band

the noise

signals are

blanker's

noise spikes

This eight

the first stage

additional filter

front panel

the

optional filters

standard filter

noise amplifier

two filters

and can

preserves

be set to compensate

by using the

half of

37. This

and

Q7

constructed

the level

output connector

voltase

stage

Q2

and C10-C12.

group

of

output

pulse.

can

from

pole

of SSB/CW

positions

Nl and

positioned

are

so that

the receiver

filters.

sideband

Q8.A

for the

generation

standard

the double

SSB

voltage

from

of

27.

attenuator is

On re-

banker

/ End I st

strong

impor-

amplified

and the

This

delay

pulse

The

noise

then open

reaching

2.4

kHz

selec-

can be

N2 but-

in

the two

stage,

Q4

for

9 MHz

side-

signal is

con-

diodes

the trans-

derived from the forward

nector

feedback to hold

12. This

arrangement

the

power

peak

transmit output

constant under changing amounts

phone

monitors the Final Amplifier current consump-

tion.

rent drain

the amplifier

loads.

drive. A separate circuit with U2 and

The

transmit carrier is cut back if the cur-

exceeds a safe level. This feature

some tolerance to badly matched

voltage at con-

provides

of micro-

negative

power

Q14

gives

Alignment

In

circuits to

ing

nate the LC bandpass filter. These

should be made using

monolithic

of

receive

the

peak.

audio level meter.

adjust

ohm dummy load,

a DC ammeter with

Hook ply

the transceiver the dummy

knob completely watts.

R52 for a 100W

to Ic

Adjust

amperes less

back the

position.

vance

DC

draws 22

turned fully check watts.

each trimmer for

The

transmitter

the ammeter

to the transceiver.

through

load. With

Set the Meter

and note the reading

R57 until

fhan

To

set the current

RF PWR knob

Now

unplug cable #12.

the RF

ammeter. Adjust

PWR control

anperes with

clockwise. Reconnect

that the output

path

there are four tuned

C3 and C4 optimize the match-

filter Y1.

Cl0 and C12

a signal

Tune in the

peak

output.

alignment requires

an accurate rf watt

20 to

amperes

30

in series with

Using the 20M band,

the watt

the front

clockwise,

Switch to FWD

indication.

the

the DC current

adjust R46

Set the meter

on the DC ammeter.

panel

meter

limiting,

to about

while watching

R54 so

power

thatthe transceiver

the RF PWR

returns

adjustments

generator

test signal and

the DC

meter

panel

measurements.

the 72

Slowly

cable #72and

to about

reso-

and an

a 50

meter

and

full

scale.

sup-

key

into

and

RF PWR

for 100

and adjust

switch

indicates

first turn

o'clock

ad-

the

control

100

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The

Pass Band Tuning module

the

operator to

relative to incoming receive

ing the front

width

band ference. The

three optional Bandwidth buttons

receive signals from connector

mixer D1-D4.

the 15.3 MHz

lator

Q4.

signal down to the

crystal f,rlters. The

signals relative to the

voltage

set the

Logic board through

can be manipulated

Noiseless feedback

38.

The mixer

on varactor D5.

tuning range to

One of

TUNING BOARD

position

panel

standard2.4kHz

filters

This

L.O. for the mixer

voltage controlled

a crystal filter

PBT control, the

can be

above the main tuning

the 9 MHz filter

stage feeds

translates the

MHz

6.3

position

exact

crystal filter is

Two alignment

+\-

four

the

filters is

connector

signals. By

to reject inter-

pole

8

selected with

amplifier

the diode

comes

crystal

9 MHz input

passband

of the receive

1.5

kHz.

selected

4l

Each

.

(81781)

enables

passband

adjust-

receiver

or

one of

the

knob.

takes

Ql

board at

ring

from

oscil-

of the

set by the

steps

by the

filter

preceded

is

nal loss regardless

diodes at each

ultimate rejection. Following the filters is the

second mixer stage

translates the receive

for

L17,

mixer.

IF/AF

the

Ll9 and L2l

resistor

by a

position

board. Three

pad

to equalize

of bandwidth and

help maintain the 90 dB

The dual

Q9.

signals back up to 9

peak

gate

MOSFET

tuned circuits

the response of the

the sig-

three

MHz

with

Alignment

To

set the tuning of

trolled crystal

counter to the

jumper

cable. With the front

fully clockwise,

Now with the PBT knob

for a reading

To

in a test

use an

maximum.

signal and watch

audio level meter

oscillator, hook a frequency

point

test

adjust C24 for 15.3015

of 15.300 MHz.

peak

the

three adjustable coils, tune

adjacent to

centered, adjust Rl8

either the S-meter

to adjust the output

the

panel

voltage

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rectifiers

set by

BOARD

IF/AF

The

gain,

of IF

the audio

and

Receiver

JFET

signal

amplifiers

IF

gain

buffers

Ql

voltage diode

level at the

in the entire

are

the

D6 and

R2l, C30,

the

IF signals

enter

forms the

Dl which

also controlled

the output

product

FAST/SLOWOFF

49.

product

The

signal

with the

audio output

plied

to a switched

The notch

rate from

trol

at connector

VCO chip

voltage from

BFO from

at

frequency

the front

53.

Analog switch

SPDT switch

under the

(81602)

module

consists of

AGC system,

three

product

circuitry.

from the Pass

at connector

first amplifier

fed back to

limits the

input of U1.

Ul and U2

receiver.

43. Grounded

controls

Q2

contribute

by the

Band

stage.

peak -

Integrated

most

These two

AGC volr

of the last amplifier

detector U3

and the AGC

D7. The AGC constants

R22 and C

switch connects

detector

6 is then

27. The AGC

at terminal

U3 mixes the IF

connector 46. The

filtered

and

capacitor notch filter U5.

is determined by the clock

U6. This

U7A

is

set by the con-

panel

NOTCH knob

and U7C form a

control of the Losic

de-

to

are

ap-

board.

connector routed nector

cuitry

then

GAIN

around

This switch

amplifier

-

U7B.

sidetone

dio

either the

Alisnment

the two

of

air CW carrier or

the

the S-Meter

after all the other

only

have been made,

amplitude signal

S-Meter offset and

uV signal for an 59

put

to

peat

these two steps

no interaction.

Audio from

U or the

to the

54. Processed

DSP interface

returns at

volume

The

either

notch

audio from

connector

is set by

knob at connector

the AF GAIN

control

is used to

independent

U8

internal or

Adjustable

IF amplifrers.

reading.

S-Meter

Two trimmers,

of the

provides

an external speaket.

L3 and L5

coils

Use either

a signal

alignment should

and will

source.

R29 and

full scale. Start

into

meter indication.

1.60 uV and adjust

antenna

the

several times until

FM detector

the

is selected

filter

chip through

the

56.

the front

A separate

55. provided

is

make the

knob setting.

up to 1.5

peakthe

generator

be

DSP

panel

Watts to

a steady off

and

performed

at

and

con-

cir-

AF

path

by

CW

Au-

gain

peak

receiver adjustments

require a calibrated

R25, adjusts the

with a 50

jack

adjust R25

and

Next lower the in-

R19 to read 53.

Re-

there is

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5.0

only

duces the

factor of 32 dB.

tion is derived from a voltage controlled crys-

tal oscillator

tion from the microprocessor is clocked in

ally t connector 87 and

chip U3. The 8 bit output of U3

R-2R resistor network, R23, which is

provide

puts output from the

gain

align the frequency of VCXO.

by

before it drives the diode mixer in

-

The

VI

a two loop system that operates at

MHz and tunes

is then

to 5.5 MHz output.

reduces the output

The synthesizet's

digital-to-analo g conversion of the

of U3. U4A and U4B buffer

and offset adjustments

The VCXO output from

T2, D1

MHz PLL BOARD

s.ss

phase

depend

noise characteristics

entirely on the design of the

MHz synthesizer.

in 400H2 steps. Its out-

divided by

phase

40

to

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frequency

noise and spurious levels

l0 Hz

(VXCO)

and

Yl,

Q2.

loads

resistor network

D2,

and then heavily

The

produce

Digital

the shift register

(R27

(81s99)

of the

synthesizer

200

the desired

but also

by a

tuning resolu-

informa-

seri-

is

applied to an

used to

out-

the analog

provide

and

and R3l) to

is

doubled

Q2

filtered

the feedback

re-

path

of the

tracts the

output which

difference

is

main loop.

boosts

drive the

works to keep this feedback signal

frequency, the small steps from the imposed

PLL chip U6 are

microprocessor through connector 87. The 10.0

MHz reference signal applied to connector 88

is divided internally

a l0 kHz step size. Phase errors from the PLL's

phase

The VCO control voltage from the charge

Q9.

pump

diodes

to a two way splitter comprised of T5 and R49,

and drives both the mixer

the high

put

of

a divide-by-four

MHz signal from

harmonics

main loop.

VCXO frequency

has

signal becomes the

is

a

Q3

the mixer output

prescaler

the main loop output.

onto

Reference and

programmed

detector steer the charge

is low

D9

U7, a square

pass

and Dl0.

speed divide-by-ten chip U7. The out-

and exits to the LO mixer

The mixer

from the

buffered

been

filtered amplifier

to a level sufficient

chip U5. Since

divide-by-N

in

U6 by 1000 to

filtered

The

wave

circuit in U8. The 5.0 to 5.5

U8

and

VCO output

buffer stage

of 20-22MHz, clocks

is

then filtered to remove

D3-D6 sub-

main loop's

by

feedback

stage

constant

dividers in

serially from the

pump

biases varicap

This

Q4.

for the

which

the loop

VCXO are

generate

circuit

is

applied

Q4

board.

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to

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4-14:

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s.s

MHZ

PLL

BOARD

SCHEMATIC (31599)

4-13

OMNI-VII

“I was struck by how clean,

natural and quiet the receiver sounded in

comparison to some DSP based radios. I found

the Omni-VII a real pleasure to listen to –

in any mode.” – W1ZR, in the ARRL

Product Review, QST July 2007

“High quality

manufacturing…overall

a very impressive

transceiver” – W9AC

“What a neat little package!

I’m having more fun with this

thing!” – K1SA

“In 40+ years and many

receivers, the Omni-VII is the most sensitive,

most QRM proof and most pleasant to operate I have

enjoyed. The noise blanker and noise reduction

systems really help me in dealing my

sometimes noisy location.”

– K6LE

“As an avid CW operator, it is

like listening to your favorite music

while operating.” – N1SW

unsurpassed by any other general coverage

“I can say that in my 30+ years of

operating I’ve never enjoyed a rig more than the

Omni-VII. The audio is superb as is the QSK, ergo-

nomics, receiver characteristics and

on and on.” – W7TEA

“Close-in dynamic range

radio.” – Radio Society of Great Britain

RadCom review, September 2007

“My Dad, KB2LAU, in Florida has

become active again using my Omni-VII in Vermont. He is enjoying daily contacts [via Internet remote control]. Being a ham with

limited to no antenna options, this has been

a great opportunity.” – W1ZN

Are you next?

Find out what they found out about the new Ten-Tec Omni-VII. Nothing in its price category matches it for receiver performance, ease of use, remote control capability or features! Contact us for complete information today – or see the Omni-VII demo video at www.tentec.com

“Once again, Ten-Tec has produced a superb transceiver, with great SSB audio and their

famous QSK.” – K4SQR

1185 Dolly Parton Pkwy., Sevierville, TN 37862 Sales: 800-833-7373

We accept Visa, MC, American Express and Discover. Office (865) 453-7172. FAX (865) 428-4483. Sales: Mon-Fri 8:00-5:30 Eastern sales@tentec.com. Service: Mon-Fri 8:00-5:00 Eastern service@tentec.com (865) 428-0364.

XTAL

4-9

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to limit

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Based on

jacks

panel

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module

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inputs

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panel switches,

front

voltages

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circuits

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BFO frequency

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transmitter

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combine

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10

transmit

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acknowledge

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transmitter

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the KEY

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output

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connector

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performs

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Optional

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for the trans-

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contains the DSP

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Ql3,

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processor

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signal

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IC's Ul7, Ul8, Ul9

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ers

smooth operation of

sure

cleaning-up

reach the microprocessor.

conjunction

C26 and diodes

C25,

the encoder

with

vide an interrupt

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cessor

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software

signals and in which direction by reading the positions interfaced viaU20 to the microprocessor,

vides the

tus. Serial TRANS???

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the encoders. When the

by

tuning routines analyze the

to determine which encoder is moving

via the 82C55IlO expander.

keyboard

interface

provides

and

Transistors

oscillator which

sor clock and after dividing down the 5 clock to the DSP CODEC. Ul3, a serially grammed ing control. A

tal is

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signal

PLL IC

fed

to the

generated

is

sample

provides

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from the

resistor R30, R3l, capacitors

D2, D3 operate to

pulse

scan for

circuitry based

level

TTL levels via

Q1

provides

ofthe selected Band crys-

PLL

via connector 84, an error

by the PLL chip and the crys-

the

NAND

bus

GATE

the

with the

provides

microprocessor

DSP

that anew command

are used to inter-

and OFFSET encod-

Ul9 is used to en-

the offset encoder by

pulses

IC's U l7 and U

for

Q18-Q1

and

the

phase

each

reading keypad

connectors

form a2}MHz

Q2

20 MHz

the Crystal Lock-

tal frequency is adjusted as necessary via the

charge

pump

circuit which

tion voltage back over the RF sampling

varactor diode located vides the necessary crystal

feeds

the crystal board

on

adjustments.

during

reset

IC

and

interface

Main

interface.

processor

to

mi-

a one-

also

to

before they

1

in

8

pro-

change

micropro-

the

encoder

IC

U21

pro-

sta-

on

U14 and

I translation

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proces-

MHz

pro-

a DC correc-

line.

A

pro-

4-18

Part No. 74253

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Printing 01/97

Printed in U.S.A.

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module

speech

modulator.

on

shield box.

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panel.

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transmit

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pot.

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AUDIO

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audio from

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normally

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through

connector

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a constant

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meter

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set

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of diode

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audio is

connector

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ofthe

transmit

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the left

chassis

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AUDIO

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AUDIO

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control

amplifier

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audio

signal

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audio

level

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through

across

no

clipping

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for

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to

speech

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switch

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forward

passed

to

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modulator

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transmit

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carrier

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in

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input

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connector

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VOX)

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trimmer

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filter

response.

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ON.

of the MIC

of connector

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audio

a 9 MHz

output.

from

balanced

through

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71 is fed

balanced

signal

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modulator

grounding

by

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mode

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adjust

at

connector

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by

switching

adjusting

information

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switch is

gain

control

to the

modulator

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sideband

gain

bypass net-

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to the 20

board

and DC

null.

signal

emitter

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audio

follower

signals

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system.

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formed

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to

set the

with

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60. The

resolution

modes

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BFO

on

con-

is in-

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fol-

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from

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Part No. 7,1253

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0l/97

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receive, adjust

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receive.

USB

FSK SPACE,

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FSK

NOTE:

range of

age

for

Because

mers,

least

FSK MARK

0 to -l5

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proper

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Cl6

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Cl2

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input

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be in

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for 9.003000

for 9.002295

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should be

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input volt-

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Vdc

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Q6

output

modulator

product detector on

connector

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output

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output

carrier

BFO output

the IF/AF

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level.

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three

Q8

transistor

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balanced

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receive board

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the signal

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the low

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transmit

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exits to the

and

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79.

to both stages

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transmit

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Q4

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output

present

two ways.

split

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BOARD

wide

level

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sig-

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by

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pulse widths are

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boards

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on the

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long.

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sets

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system.

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receiver during

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panel

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9 MHz

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PLL shield

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D3 in

and

temperature

The

reference

voltage

"T"

voltage

for the

or UIB-Q6

,"T"

are cut off,

When

"T"

the bias

gain

of the

settles

into a stable

accessible

stages

is

relatively

a

bias

the

thermal

diode

and the

contact

dependent

is added

sum

respective

in the

voltage is removing

goes

PA until the

low and both

bias

high, capacitor

reference

transmit

potentiometers Rl 9

through To adjust

in series

remove drive from

Vdc

Unplug

be inserted

lead coming from

connector 79

board to

in

rotate first the

minimum current.

pit.

Rl5 to

produce

milliamperes on the meter. Re-

meter and reconnect the

Now rotate

and

com-

to

voltage

to a

op-

di-

the

por-

constant

reference

is used as

bias regu-

PA bias cir-

from both

C25

voltages,

rest of the

mode.

the bottom

PA bias, a

with

the DC

fromthe Low

mode.

USB

final

pot.

bias

Rl9

the

additional

red wire to

Low

a

Level DriverAll.B. board.

4-28

Part No. 74253

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AMPLIFIER SCHEMATIC

(81611)

4-29

FM BOARD

4-17

module

This

separate

signal

paths.

On transmit,

amplified

dio/BFO

preemphasis with a

cally

audio

peak

to

vent over

filter U2B limiter

varactor

for

age to frequency

cillator

tor at 9.003

transistor

about

stage

nector 33.

the FM

microphone

board.

+6

dB/octave

range.

Diodes

amplitude

deviation

filters harmonic

and adjusts

D6. the varactor

Q2.L2

is adjusted

MHz

isolates the

Q3

-5

on the 9

dBm

carrier

MHz

At this

carrier as

ofthe

conversion

if it were CW.

In receive, the

tapped off

circuit

enters

the 9 MHz

on the Low

the FM board

(81598

contains

connector

signal

circuitry

75 receives

from the TX

Amplifier U2A

pass

high

over the 300

D4 and

ofthe

the

with

response of typi-

D5 limit the

processed

FM carrier.

distortion

amplitude of

performs

in the

to center the oscilla-

no audio bias. Buffer

oscillator and

for two

provides

to 3000

audio to

Low

from the

the audio

the

Colpitts

provides

an

Au-

Hz

peak

pre-

pass

volt-

os-

to the next transmitter

Mixer/IF board via con-

point

the transmitter treats

FM receive signal is

IF

the noise

of

Level DriverA{.B. board and

at connector T. The sisnal

blanker

MC3371P

feeds Ul,

converts

amic

the on-chip

ture coil,

audio

nal of R6, C5

board

dio signal of U1,

as a noise

ternal opamp

Dl and

mounted tude of the

squelch

12

trol

tional to

amplitude,

an

down to

filter FLI

a 455

sets the

quadrature detector.

is adjusted

minimum

and

is deemphasized

and C6

through

is also

which

and is carried

connector

fed through

contains an

triggered squelch.

at

through connector

SQUELCH

audio is below

control

low,

allowing

Ul

current at

diode D I conducts

Ul

provides

also

the logarithm

and is fed to buffer

1 1 is routed

13. This current

Diode D2 is used to emitter voltage

drop of

R8 is used to calibrate

meter output

tor V to the

from

front

Ql

panel

receiver

FM

frequency.

IF

kHz

receive

maximum

for

distortion.

the

by

bandwidth

T1, the

The

low

on to

U. The

R5-C4,

internal opamp

Output

R to the front

control.

When the

level set by the

the

to mute the

an S-meter

of the

compensate

Ql,

the S-meter

IF input signal

and

is sent through

meter switch.

which

chip,

Cer-

for

quadra-

recovered

audio sig-

pass

network

the IF/AF

to

of the

panel

au-

used

in-

wideband

through C2

ampli-

pulls

and

audio output.

output con-

propor-

is

transistor

Ql.

for the base-

potentiometer

reading. S-

connec-

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contains

indicators

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the

switches

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scanned

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ananay

rotary

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mounted

is

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bezel

through

down

are aranged

columns

seven

through

front

through

read through

are

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shaft

to

is con-

the

panel

and

the

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four

con-

connector

closure

sequence, on

sure umn

LEDs LEDs

age

through

pad nector 98,

by strobing

of the

any

is defined

and

The

through

are

and

A

assembly

microprocessor

The

91.

watching

while

lines.

row

by

that

lines

row

Logic

connectors

illuminated

all cathodes

connectors

rotary

encoder

and

located

on the

column

each

for a

The

intersection

the

simultaneously

are

by a

are

and

95

is mounted

drives

94,95

positive drive

returned

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board

its output

low

location

the

95.

is routed

board.

detects

line

to appear

the

of

of the

indicator

96.

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to

to the

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BOARD

SCHEMATTC (81sS9)

4-33

4-r9 SWTTCH

This

five latching

and

tors

which

control the

main/aux,

NOTCH auto/manual,

assembly

just

Filter board by

the main or

ceive. LED

the

circuit

AGC

is mounted

inboard

Switch

position.

AUX

AGC on/off switch 52

on the IF/AF board by

amplifier input through connector 49.

BOARD

module contains

AGC on/off,

of the

auxiliary antenna

main POWER switch.

S 1 is connected

connector 7 and selects either

Dl is turned on

(81603)

push

functions of

AGC fast/slow,

and

QSK

on the left front subpanel

for

when

disables

two LED

indica-

button switches

ANTENNA

fast/slow.

to the Low Pass

use during

This

re-

Sl is set to

AGC

the

grounding

the

fast/slow

AGC

decay the bottom pacitor

time

end of

in the AGC

NOTCH

to the

nects

When in the

on and the

mented abled along

control. front

to the

setting croprocessor

trolled

in the

When in MANUAL

panel

manual notch

QSK

Logic

of this switch is

keying

AGC

increases

switch

in the slow

auto/manual

Logic board

AUTO

automatic

DSP

with the

fasVslow switch 55 also connects board

which

accordingly.

53

position

an additional

circuit.

switch

through

position

processing circuits, is en-

front

through connector

adjusts the software con-

LEDD}

notch

function, imple-

panel

position

is

active.

monitored by the mi-

the

grounding

by

integrating

54

connector

is turned

manual notch

only the

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ca-

con-

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SCHEMATTC

(81603)

Part

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Printed in

No.

74253

0l/97

U.S.A.

4-20

UPPER

This

tric

controls, a latching

an LED indicator.

front sub and SQL, PBT

switch.

The

BPF/ Front End it controls the insertion

pad.

tor

+13.5

Volts

LED Dl

circuit on

The N.B.

Low

Level DriverA,l.B.

tor 67

This

.

POT. BOARD

module

panel

contains two dual

The

at the control

and NOTCH, and

ATTN switch

board by connector

When

the

pad

to the anode

and also to the

the BPF/Front

control RIA

control

adjusts the input

(81604)

concen-

pushbutton

board mounts on the left

positions

Sl is wired

of

the

is inserted,

of

attenuator

End board.

board

switch and

of N.B.

the ATTN

to the

18 where

receiver

-20dB

connects

through connec-

attenua-

Sl

applied

indicator

switchins

to the

threshold

level of the

the FM board

the squelch noise chip.

tor 53 to the IF/AF

a clock oscillator

quency

wise rotation

the wiper, increasing

Pass

Band Tuning

where it controls

pass

band tuning

R2A increasesthe ing the

noise

blanker amplifier.

The

SQL control RIB

through connector

threshold of the FM

NOTCH

control R2B, through connec-

board,

which determines

ofthe manual

of R2B increases

The

PBT

control R2A

board

the

VCXO.

voltage

frequency

of the VCXO.

is

connected

R, and adjusts

receiver

varies

a dc voltage to

the fre-

audio notch filter.

the voltage

the notch frequency.

connects

through connector

dc bias to

Clockwise rotation

onthe

the

wiper, increas-

Clock-

15.3

to

at

to the

42,

MHz

of

FIGURE

4-37:

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4-35

4-21LOWER

This module

tric controls,

LED indicators.

two

panel

front

left

PWR,

and

PROC on/off

in the

to the anode

tor 70, to

routes

via cable

returnins

AF and

When

position,

"on"

of

a diode on

processed

71. RIA sets

on cable

POT.

a latching

at the

switch

PROCessor on/off

BOARD

contains

The board

control

RF, ALC indicator,

and

"+REG"

two dual concen-

pushbutton

positions

indicator.

voltage is applied

LED Dl and,

the TX

audio to

71 to the balanced

Audio

MIC

the level of the signal

(81605)

switch, and

mounts on the

of MIC

and the

switch S

through connec-

board

gain

control

I is

which

R1A

modula-

in the "off

tor.

When

Sl is

D1 is extinguished,

routed though

audio

modulator.

vider, through

Mixer/lF

ALC action

tor 28 which

R2B, form

tors 55

mine respectively resting voltage.

is

PWR

control

connector

board,

AF

and 50 to the

which sets

develops

illuminates

gain

and

voltage dividers,

audio output

position,

"

unprocessed

and

RIA to

forms

RIB

29 to

ALC threshold.

the

a current

gain

RF

IF/AF board,

through connec-

indicator D2.

ALC

controls,

through connec-

indicator

transmit

the balanced

voltage

a

the 9

R2A and

which deter-

level and

di-

MHz

AGC

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Part No.

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74253

01/97

U.S.A.

February 2006 was magic for Scott Robbins, W4PA. Most folks travel to Barbados to marvel in the Caribbean splendor. But, not Scott. Operating as 8P9PA in the ARRL DX CW contest, 5206 QSOs in 48 hours is what it took to win #1 World Single Op. Scott had reached a goal he set for himself decades earlier as a teenage ham.

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*Shipping is additional. TN residents add 9.5% TN sales tax.

CHAPTER

5

5.1

INTRODUCTION

The

OMNI

a comprehensive

With

the

addition

party

third

control

possible.

operator

logging/control

of nearly

The

with

many

flexibility.

The

control

Plus

was

designed

existing

Choose

is

available.,

entry for Model ging/control

the able

computer,

cable.

able

25

connector

your

contest

the

the OMNI

735.

many

extended

in the

OMNI

In

order

you Determine your

on

pin.

The

on

own cable,

OMNI VI

If

You

software

to connect

must

computer,

transceiver

its

YI PIus

computer

of

a Personal

every

transceiver

computer

additional

interface

to be

compatible

and logging

setup

your

software

VI,

then

may

use this

will not

functions

YI

Plus.

first

the

type

it

will

requires

end.

refer

you

If

to Figure

OMNI

transceiver

VI PLUS

control

interface.

Computer

software,

computer

function

interface

provides

conveniences

in the

OMNI

with

software packages.

your

in

your

obtain

software

does not

choose

setting

take

and features

transceiver

the ICOM

but the

advantage

the

appropriate

of serial port

either

be

a9

a 25

wish

to

construct

5-2.

COMPUTER

features

and

is

the

and

VI

many

if it

have

an

log-

of

avail-

to the

avail-

or

male

INTERFACE

5.2

SETTING

Several

and transceiver

nication

Check

serial

P

and 19200

User

the highest

package

that

setup

ceiver.

it

OMNI

the

match

to the

item

whether

changes

rial

(either

software package.

your

baud

lus will

Menu

and

There

must

to see

For

will normally

YI

User

so

that

computer

The

in

the

made

port.

ON

difficulties,

UP

parameters

must

possible

is

software package

rates

accommod

baud.

#2.

Generally

rate

supported

the transceiver.

will

be established.

what

the OMNI

be

Plus

is

Menu

#2.

the

transceiver

commands.

parameter

final

User

transceiver

from

The proper

or

OFF)

try

changing

THE

be

over

are

available.

ate 1200,

This

also

address

YI Plus

"04".

preset

Make

Menu.

the

setting

depends

you

If

SOFTWARE

at both the

defined before

the

serial interface.

to

determine

The

2400,

selection

you

by both

be

a transceiver

Check

it

expects

The

04 but

will want

or the

default

it is

sure

these

is

the

your

for

selectable

will know

to

be set is

This

setting

automatically

panel

front

over

of this

your

on

experience

this

setting.

computer

commu-

which

OMNI

4800,

made in

9600

to select

software

address

software

the trans-

ICOM

value

of the

addresses

to

respond

the

"CdE"

controls

reports

the

parameter

particular

interfacing

VI

the

735

in

se-

Part No. 74253

lst Printing

Printed

in

U.S,A.

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CONNECTIONS

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5-3 OMNI

VI Plus Serial

Interface

Technical

Documentation:

There are

the technical

you

useful

ence.

if

Generally,

transceiver

characters

transceiver that

returning ceiver

indicating

the transceiver

some operational

responds

format or because

nized commands

One

ceiver

every time the

is enabled.

Plus

the bus.

ceiver frequency

control other

to

These commands

COMMAND

Each

1 start bit, 8 data bits, 1 stop bit and no

computer.

(full

ibility with other

many software

details of

are

the Serial

writing

your

operation

to respond.

Depending

"OK", meaning that the

respond with a string

may

was unable to

with a

will

other command

"On"

(CdE

NO

requested operation was not available

the

cause

frequency or mode is changed

in menu 2) The matrix-mode commands

radios.

without needing to constantly

FORMATS:

message sent on the bus contains

duplex)

models of transceivers.

An optional TTl-level

packages

Interface

software.

own

involves

sending a command

on the command,

of characters

process

information

GOOD

no reply at all.

code, it was either because

type is the Matrix Mode.

receiving the matrix-mode

Units

are also useful, for

available

are necessary

to control

to use these

The technical

the

requested command

indicating'NO

request. Some

the

from the radio such

Matrix-mode commands

from the front

example,

poll

several

parity.

port

to allow a

the transceiver.

characters

Each byte sent to

labelled

the OMNI

details

YI Plus

packages,

have been

to the transceiver

transceiver

may

has been

processed. Alternately,

GOOD"

commands

as current

the

on that transceiver.

are designed

request do not reply to avoid

may result

frequency or

command

panel

of

logging

(bytes),

and each character

the radio is

"SEzuAL

PORT" is included for compat-

and

the

but

included

and then

respond

to the

computer,

was not in the

Garbled or

are sent by

the radio if

to allow the Omni

program

echoed

knowledge

no

details

here

may

for

waiting

with a string

meaning

in the

mode. If

to track the

transceiver

a trans-

unrecog-

the trans-

matrix-mode

overloading

is

back to the

of

be

refer-

for the

of

the

proper

VI

trans-

sent

as

The

General

header,

text, and

decimal 224.notthe

address

messages are described here

FE FE RECEIVER

The FE FE at the beginning ofthe string is the two byte code that tells the transcerver a command

is to follow. The transceiver will

address, which tells the transceiver that it is address in the command string, does not match

transceiver.

represents

that by the transceiver

computers to be used as well as multiple

as each transceiver is required to have a unique

Hex. The COMMAND CODE tells

are in Hexadecimal format. Some

transceiverthe specific operationthat isto

(There

format of a command

field, command field,

data field and a terminator. Please note that the data is not ASCII

is shown below

in hexadecimal format; the notation

text string

ADDRESS

are a few exceptions

the address of the computer that is

when it responds

"FE".

SEI.{DER ADDRFSS COMMAND CODE SUB COMMAI\D

prepare

to the

commands contain additional

itself to

to

to this rule to be discussed later). The SENDER address is a code

command

transceivers, each computer must have a unique address

the transceiver which operation to

beperformed.

(sent

left to right) and is composed of a

"FEh"

check

process

the transceiver's address, the command

sending

request. Because

address. The default computer address used most is E0

the command to determine if it contains its

the command that

the

command.

will follow. If

This

the serial

address will be used

interface

perform.

Sub Commands

Specific

codes maybe foundinthe followingpages.

means FE hex or

the

is ignored

allows

All command

that further

DATA

RECEIVER

by the

multiple

codes

clarify to

FD

later

just

the

5-2

Part No. 74253

lst Printing 01/97

Printed in U.S.A.

TheDATAportionofthecommandstringisrequiredbysomecommands.Itwillcontainfrequencyor

mode information

transceiverthat string. it will process

ifsuchcommandsare

the end ofthe

command has

the command.

issued. TheFD

beenreached. Afteratransceiverreceives

Hex. atthe endofthecommand

string, informsthe

acomplete

command

5.4 RESPONSE

After a

to the

computer that

handled

not to send

the command

command

(a

command

(

OK

FB Hex.)

general

is now

structure

the receiver.

transceiver has

additional

sent. If

that requests

FEh FEI

5.5 DATA

string

encoded

digits

requested

FORMATS

When

will

and must

a

necessarily

as a string

from

l?Hz

1Hz

STRINGS

originated

and

also

commands

a computer

data

orNO GOOD

as

described

RECEIVER

computer

of BCD

be

a transceiver,

lKhz

sends frequency

contain

digits in

properly

ndb

l00hz

-

RADIO TO

processed

the command.

provides

until it

sends

to be

(FA

above is

a method

has received

a command

sent back)

Hex.).

maintained

ADDRESI

the

requested

the

order

encoded

it

will

for

also

l00Khz

COMPUTER

a command

This insures

the transceiver will

The

returned

or mode

frequency

shown below.

the

be in

l0Khz

sent

pacing

of

a response from

to a transceiver

but the transceiver

SENDER ADDRES!

setting commands

transceiver this format.

4rh

10Mhz

from

a computer,

that the computer

the commands

the transceiver

that is not

respond

string will have

is now

data or mode

Each

Hexadecimal

process

to

lMhz

lGHz

it will send a response

knows how

because the computer knows

the transceiver

concerning

a status requesting

either with

the following

the

sender and the

FAh

or FBI FDh

a code indicating

format. The

to a transceiver,

code. Frequency

number

them.

When frequency

command

computer

the

command

data must

contains 2 BCD

100MHz

back

the last

same

be

data is

of 30

Mhz,

response

table:

in

this

format.

FOR

Since

the lHz

from

When

EXAMPLE:

the TEN-TEC

digit

is ignored

the

transceiver.

a mode

a transceiver

selection

The frequency

Model

563

and

has

command

returns

its

current

14.03567

70

a tuning

attempting

is sent,

the mode

operating

Mhz

would

56 03

resolution

go

to

mode

14 00

beyond

must

to

be

encoded

of 10

Hz,

and

30

Mhz will generate

be

encoded

a computer,

as

follows:

an upper

according

it

will

frequency

a'NO

to the following

also be

GOOD'

encoded

limit

Part No. 74253

lst Printing

Printed

in

tl.S.A.

0l/97

5-3

ine table:

When a

filter

selection

commanc

is sent,

filter

the

2.4kHz

1.8 kHz

.5

.25kHz

must

02

03

kHz 04

05

be encoded

according

to

the

follow-

When

format.

narrow

The

COMMANDS

5.6

Specific

command discussion

Here

1.8 kHz

a

an incorrect

must

of

is a commandkeply

The command

filter, the

string

This

The transceiver

The FBh

mode

a transceiver

returns

filters are

transceiver

adhere

possible transceiver

the

to change

message

FEh FEh

is sent

control

the structure

to

example:

04h EOh 06h

as 8 bytes of data

will respond

FEh EOh O4h

FEh

is

"good" code,

the number, for example,

its current

not supported

commands

response.

modes

from the

via

computer to

with:

FBh FDh

and no data follows

operating

through

the

can be

discussed

the

01h 03h

with

the transceiver

earlier.

interface is 06h,

serial

the transceiver

FDh

no carriage return

filter

serial

found

Included

computer,

to a

interface.

on the

is:

with the commands

so to change

it will

following

or linefeed.

it. If the command

to change modes contained

would have responded

also be

pages. In

mode to USB

the

with:

in this

use,

isa

each

brief

with

Which is the "no

O3h

QUERY

This command

puter.

The frequency

COMMAND

FEh FEh

FEh

RA

SA 03h FDh

5-4

FEh FEh

good"

TRANSCEIVER

sends

data

STRING SENT

RA SA O3h FDh

FEh

Command Receiver Address

Sender

Command Command

E()h O4h FAh

code.

FDh

FREQUENCY

the transceiver's

is returned as a string of

TO THE

Prefix

Address

(computer

code for frequency

String Terminator

current operating

TRANSCEIVER:

(transceiver's

BCD digits

address)

EOh)

query

frequency

encoded as discussed

to the requesting

com-

previously.

Part No. 74253

lst Printing 0l/97

Printed in U.S,A.

RESPONSE

The

transceiver's

currently

active

FEh

FEh FEh

RA SA

03h DATA FDh

STRING

transceiver

frequency

VFO.

FEh

RA

SENT TO THE

will respond

encoded in

SA DATA

Command Receiver

Sender Address (Transceiver's

Command

Transceiver's

Command

Prefix

Address

echo

strins

COMPUTER:

by sending

BCD format.

FDh

(computer

frequency

terminator

a return

The

in BCD

string that contains

returned frequency

E0h)

address)

format

a data

represent

segment

frequency

the

with the

of the

O4h

QUERY

This

computer.

COMMAND

FEhFEh

FEh

RA SA 04h

FDh

RESPONSE

The

transceiver's

FEh

RA

SA 04h DATA

FDh

TRANSCEIVER

command

sends

STRING

RA

SAO4h

FEh.

STRING

transceiver

mode

FEh

Command Receiver

Sender

Command Command

SENT

will respond

and filter

RA

SA

Command Receiver

Sender

Command

Transceiver's

Command

MODE

the transceiver's

SENT

TO THE

FDh

Prefix

Address

Address (computer

code for

String

TO

encoded.

DATA

Prefix

Address (computer

Address (Transceiver's

echo

Strine

(transceiver's

Terminator

THE

COMPUTER:

by

sending

The

FDh

mode

Terminator

current

operating

TRANSCEIVER:

address)

EOh)

mode query

a return

data returned

and

filter

string

is

EOh)

address)

encoded

that

from

mode

contains

the

displayed

and filter

a

data

to the requesting

segment

VFO.

with

the

in

COMMAND

Part

No. 74253

lst Printing

Prrnted

in U.S.A,

the

command

0l/97

FEh

RA

This

string.

STRING

FEh

RA

FEh

command

Frequency

SENT

SA O5h

Command Receiver

updates

data

TO

THE

DATA

Prefix

Address

the frequency

must

be

encoded.

TRANSCEIVER:

FDh

(transceiver's

of

the currently

address)

selected

VFO

to data

contained

t-5

SA 05h DATA FDh

RESPONSE

The transceiver

(FAh)

beyond

if the

the capabilities

FEhFEh

FEh FEh

RA

SA

FAhorFBh

FDh

STRING

operation

RA SA

Sender

Command

BCD

Command

will

failed.

of

Address

encoded

SENT

TO

send a

The operation

the transceiver.

FAhorFBh

Command Receiver

Sender

NO

Command

Address

GOOD CODE

(comPuter E0h)

for set

code

frequencY

String

frequencY

data

Terminator

THE COMPUTER:

string that

contains

will

FDh

Prefix

Address

Strine

(computer E0H)

(transceiver's address)

or OK CODE

Terminator

either

fail if the

the OK

frequency

code

data

(FBh)

indicates

or a

NO GOOD

frequency

a

code

that

is

O6h SET

command

COMMAND

TRANSCEIVER

This command

string.

Mode

STRING

FEh RA SA

FEh

FEh FEh

RA

SA 06h DATA

changes

data must be

SENT

O6h DATA

Command Receiver Address

Sender Address

Command code

Desired

filter selection.

FDh Command

RESPONSE STRING SENT

The transceiver

performed,

operation

the requested mode

was

FEhFEh RA SA

FEh FEh

RA SA

FAhorFBh

will respond by sending a string

or a

is not available on the transceiver.

FAhorFBh FDh

Command Prefrx Receiver Address

Sender

NO GOOD CODE or OK CODE.

FDh Command Strins

MODE

the

mode

encoded.

the currently selected

of

TO THE TRANSCEIVER:

FDh

Prefix

(transceiver's

(computer

EOh)

for mode and filter selection

mode

encoded: one

String Terminator

byte for mode only or

TO THE COMPUTER:

NO

GOOD

Address

(FAh)

(computer

(Transceiver's

Terminator

code if the operation failed. The operation

E0h)

address)

to data contained

VFO

address)

two

bytes

containing either the OK code

in the

for mode and

(FBh)

will fail if

if the

VFO

O7h

a sub command must be specified

COMMAND STRING SENT

5-6

SELECTION

This

command

FEh RA SA O7h SC FDh

FEh

FEh FEh Command

RA

provides

Receiver Address

for selection of a

TO THE TRANSCEIVER:

that indicates

Prehx

(transceiver's

particular

which

VFO

address)

VFO. Besides the VFO selection code 07h,

perform.

operation

to

Part No. 74253

lst Printing 0l/97

Printed in U.S.A.

SA

07h

SC

FDh

00h Olh AOh

BOh

Command

Sender

Command Sub-Command:

Address

code

Select VFO Select VFO

Copies

Swaps

Strins

(computer

for VFO

A

B

selected

vFo

contents.

Terminator

E0h)

selection

VFO

to other

ie

vFo

VFO.

A to

ie

VFO

vFo

A:

B

and vFo

VFO

B to VFo

B.

A

RESPONSE

The

operation

if

the requested

was

FEhFEh

FEh

RA SA

FAhorFBh

FDh

O8h

SELECT

This

memory

limits

operations.

of the

COMMAND

FEh

RA

SA

08h

MC

FDh

STRING

transceiver

performed,

mode

RA

FEh

NO

MEMORY

command

The

transceiver

STRING

FEh

RA

Command

Receiver

Sender

Command

Memory

Command

SENT

responds

is

not

SA

Command Receiver

Sender

Command

TO

or a NO

available

FAhorFBh

Address (Transceiver's

GOOD

CHANNEL

informs

memory

or a

NO

SENT

SA

TO

O8h

Address (transceiver's

Address (computer

channel

THE

COMPUTER:

by

sending

GOOD

on

a string

(FAh)

code

the transceiver.

FDh

Prefix

Address (computer

CODE

Strine

the

channel

GOOD

THE

MC

or

OK

Terminator

transceiver

number,

will

be returned.

TRANSCEIVER:

FDh

CODE.

which

prefix

E0h)

code

for

channel

String

number

Terminator

in

containing

if

E0h)

address)

memory

in

BCD

address)

select

BCD

either

the operation

channel

format,

format

must

the

OK code

failed.

be within

is

The

to

be used

(FBh)

operation will

the

memory

if

for

subsequent

the

channel

Prrt No.

lst Printing

Printed

74253

in

RESPONSE

The

transceiver

was performed,

channel

is

not

FEh

FEh FEh

SA

FAhorFBh

FDh

0l/97

U.S.A.

STRING

or

a NO

available

RA

NO

SENT

responds

GOOD

on the

SA

Receiver

Sender

Command

TO

transceiver.

FAh

Address

GOOD

THE

by sending

(FAh)

code

or FBh

Address

(Transceiver's

CODE

String

COMPUTER:

a

string

containing

if

the

operation

FDh

(computer

or

OK

Terminator

E0h)

CODE.

failed.

address)

eitherthe

The

OK

code

operation

(FBh)

will

fail

ifthe

if the

operation

memory

s7

TRANSFER

O9h

ACTIVE

VFO TO

MEMORY CHANNEL

This command

memory

channel

will be used

COMMAND

FEhFEh

FEh Command

FEh

RA

SA 09h FDh

RESPONSE

The transceiver

performed,

was

FEhFEh

FEh Command

FEh

RA

SA

FAhorFBh

F'Dh

transfers

should

have been

for the operation.

STRING

SENT

RA SAO9h

Receiver

Address

SENT

STRING

a NO GOOD

or

Sender

Command Command

responds by sending a string containing

RA SA FAhorFBh

Receiver

Sender

NO GOOD CODE or OK CODE.

Command String

Address

contents of the

previously

active VFO to the

set using command

TO THE TRANSCEIVER:

FDh

Prehx

Address

code for VFO save

(transceiver's

(computer

address)

E0h)

Strins Terminator

TO THE

code

COMPUTER:

(FAh)

if the operation

FDh

Prefix

Address

(computer

(Transceiver's

EOh)

address)

Terminator

pre-specified

If not, the

08h.

eitherthe OK

failed.

memory

last accessed

(FBh)

code

channel.

operation

ifthe

The

memory

COPY

OAh

The memory channel memory channel

COMMAND

MEMORY CHANNEL TO ACTIVE VFO

Transceiver

to copy data from the

should have been

will be used for the operation.

STRING SENT

FEh FEh

RA

SA

0Ah

FDh

RA

OAh FDh

SA

Command Receiver

Sender

Command code for memory recall Command Strins Terminator

RESPONSE STRING SENT

responds by sending

or a NO

GOOD

performed,

was

Transceiver

FEh FEh RA SA FAh or FBh FDh

FEh

Command

RA Receiver Address SA Sender

FAhorFBh

NO

GOOD CODE or Ok CODE.

FDh Command Strins Terminator

pre-specified

previously

memory channel into the currently active VFO.

set using command 08h. If not, the last accessed

TO THE TRANSCEIVER:

Prefix

Address

TO THE

code

(transceiver's

(computer

COMPUTER:

a string

(FAh)

if

the operation

address)

EOh)

containing

Prefix

Address

(computer

(Transceiver's

EOh)

address)

either

failed.

the

OK

code

(FBh)

if the

operation

5-8

Part No. 74253

lst

Printing 0l/97

Printed in

U.S.A.

OFh

SET/CANCEL

This

CLEAR

perform.

SPLIT

COMMAND

FEh

FEh RA SA OFh SC

FDh

command

STRING

FEh

RA

00h 01h

SPLIT OPERATION

activates

code

SENT TO

SA OFh

Command Prefix

Receiver

Sender Address

Command Sub-command:

Command

or cancels

0Fh, a sub

THE

SC FDh

Address

code for

Cancel

Set split

Strins

command

TRANSCEIVER:

(transceiver's

(computer

split

split operation

operation

Terminator

split

operation of the

must be

E0h)

operation

specified

address)

transceiver.

to indicate which

In addition to

operation to

the SET/

R-ESPONSE

performed,

was

FAhorFBh

FD

SPECIALIZED

Sometransceivers,suchas

referred transceiversconnectedtotheserialinterface.

and

accept

MATzuXMODEandareinaformatuniquetoMATzuXMODE.

acceptthematrixmodecommandsbutwillnotgenerate from

a MATRIX

STRING

Transceiver

FDhFDh

FD FD

RA

SA

responds

or a

NO GOOD

RA

COMMAND

to as MATRIX

MATzuX

MODE

SENT TO

by sending

code

SA FAhorFBh

Command Receiver

Sender

NO GOOD

Command

MODE.

MODE

transceiver

Prefix

Address (computer

Address

CODE

String Terminator

MODES:

TEN-TECmodels

MATzuX

COMMANDS.

THE

COMPUTER:

a string containing

(FAh)

if

the operation

FDh

(Transceiver's

or OK

MODE

Whenthe

These

when

ever its

EOh)

address)

CODE.

either the

failed.

OK

code

(FBh)

if the

operation

563,564,535and536provideanadditionalmode

allows

a transceiver

to operate

as a controller

for other

transceiverisplacedinMATRIXMODEitwillgenerate

commands

are

sent

from

any

transceiver placed

OtherMATRIXMODEtransceiverswill

response.

operating

MATzuXMODEcommandsaregenerated

status

is

changed

(ie

frequency

or mode

sendingMATzuXMODEcommandsthatcontainthisinformation,otherMATzuXMODEtransceiverswill

automaticallytrackthetransceiverthatgeneratedthecommands."M.Lock"willappearindisplay.

MATRIX

mode

on

Model

563: in

USER'S

MENU,

turn

CdE.,ON',.

Toactivate

).

in

By

OOh MATRIX

TRANSFER

MATRIX

MODE

COMMAND

Part No. 74253

lst Printing

Printed

in tt.S.A.

0l/97

MODE

CURRENT

MODE

This

command, generated

transceiver

to mimic

STRING

FEh

OOh

FEh

COMMAND

OPERATING

the

SENT

SA

OOh DATA

Command

by a transceiver

operation

TO

THE

of

TRANSCEIVER:

FDh

Prefix

FREQUENCY

in

MATRIX

the transceiver

TO

that

ALL

TRANSCEIVERS

MODE.

generated

causes

this command.

any

other

IN

MATRIX

5-9

RA

SA 00h

DATA

FDh

accept.

Receiver

00h

Sender

Command Transceiver Command

Address

(transceiver

for frequency

code

frequency,

Strine

Terminator

that any

address)

encoded

MATRIX

transfer

BCD format

in

MODE

transceiver

will

RESPONSE

senerated

Olh

command.

MATRIX

TRANSFER

MATRIX

MODE

This command,

transceiver

COMMAND

FEh FEh

FEhFEh RA

SA

01h

DATA

FDh

RESPONSE

generated

command.

STRING

MODE

CURRENT

generated by a transceiver

to mimic

STRING

SA OOh

OOh

Command 00h

Sender

Command mode and

for mode

Command

STRING

SENT

TO THE COMPUTER:

COMMAND

OPERATING

the operation

SENT

TO

DATA

Prefix

Receiver

Address

code

filter codes, encoded

and filter selections.

String Terminator

SENT

TO THE COMPUTER:

MODE

the transceiver

of

TRANSCEIVER:

THE

FDh

Address that

(transceiver

for

transfer

No transceiver

ALL

TO

in MATRIX

MATRIX

any

address

)

in BCD: one

No transceiver

replies

TRANSCEIVERS

MODE,

that

MODE

generated

causes

transceiver

for mode only

byte

responds

this

to this

transceiver

IN

MATRIX

other

any

command.

will accept.

or two

to this transceiver

bytes

EXPANDED

5.7 HEX.:

OC

command

This

Transceiver's

(2

format

Data:

Note:

OD

This

Data: Offset

s-10

bytes).

Transceiver's

The command

HEX: WRITE

command

COMMANDS

READ

OFFSET

queries

response:

Negative offset

current

OFFSET

the transceivers

sets

frequency

FOR MODELS

FREQUENCY

the transceivers

The transceiver

frequencies are

offset

is not echoed.

code

frequency in

FREQUENCY

in BCD

format.

563

current offset

will respond by

returned

BCD format.

current offset

For negative values

frequency.

AND 564 ONLY

frequency.

returning

the current offset

in 9's compliment

ofoffset, the

form.

format should

frequency

be 9' compliment.

in BCD

Part No.

lst Printing

Printed in U.S.A,

74253

0l/97

BOARD

VFO.

REQUIRED)

This

command

will activate

the optional

voice board and

announce

the frequency ofthe cunent

Transceiver's

16 HEX:

This

command

These

control

cannot

commands

functions.

override

SUB-COMMAND SUB-COMMAND

Transceiver's

return

the OK

COMMAND

This

command queries

Transceiver's

a I byte

code

response:

SET/CLEAR

and

associated

provide

Thus,

the PTT

response:

code.

17h:

RETURN

the

response:

encoded

FE

as listed

FE

RA

Returns

NO

TRANSMIT

sub-commands

remote

control

if the PTT

action.

Olh

O2h

If the

TRANSCEIVER

transceiver's

The

below.

SA

DATA

GOOD if the voice

MODE

control the transmitter.

of the

line

is depressed,

GO TO TRANSMIT

RETURN

transceiver

transmit/receive

TO

RECEIVE

was

STATUS

extended

transceiver

status information.

will

return

FD

board is not

sending

able

perform

to

the

extended

installed.

functions

a RETURN

the indicated

status

but

cannot override

TO RECEIVE

operation, it

information

local

command

encoded

will

in

Note:

will

Part

No. 74253

lst Printing

Printed

in I-l.S,A.

I8h:

RETURN

be included

0l/97

BIT

O

I

2

a

J

4

5

6

The

command

TRANSMIT

This command

in

the returned

POSITION

SPLITSTATUS

VFO

SELECTED

TX

STATUS

RIT

STATUS

XIT

STATUS

VOX

STATUS

LOCK

NOT

code

STATUS

USED

is not

FREQUENCY

returns

the

frequency.

echoed.

true transmit

(0:SPLIT

(0=VFO

(0:RX,

(0:OFF, (0:OFF,

(O=OFF,

(0:OFF,

frequency

OFF,

l:SPLIT

A, 1=VFO

B)

l:TX)

l:ON)

1:ON) l=ON)

l:ON)

ofthe transceiver.

ON)

Any transmit

offset

or split

status

5-t I

COMMAND

FEh FEh RA SA

FEh FEh

RA

SA

l8h

FDh

STRING

SENT

TO THE TRANSCEIVER:

T8h FDh

Command Receiver

Sender

Command Command String

Prefix

Address

code for

(transceiver's

(computer

frequency

Term inator

address)

EOh)

query

RESPONSE

frequency encoded

STRING SENT

The

transceiver

FEh RA

FEh

FEh FEh Command

RA

SA

DATA

FDh

willrespond by sending a return string that contains

in BCD format. The returned frequency represents the frequency ofthe

Command strins term inator

TO THE COMPUTER:

DATA FDh

SA

Prefix

Receiver Address

Sender Address

Transceiver's frequency in BCD format

(Transceiver's

Note: Command 03h is echoed as if this were

19h: RETURN RECEM FREQUENCY

This

command

are included in the returned frequency.

COMMAND STRING SENT TO THE

FEh RA

FEh

FEh FEh

RA

SA 03h FDh

returns

the true receive frequency

TRANSCEIVER:

SA I9h FDh

Command Prefix Receiver Address

Sender Address

Command Command String Term

(transceiver's

(computer

code for frequency query

(computer

inator

a data segmentwith

EOh)

address)

query.

a 03h

of the transceiver. Receive offset and split operation

address)

EOh)

the transceiver's

currently active

VFO.

RESPONSE

transceiver's currently active VFO.

STRING SENT TO THE

The transceiver will respond

frequency encoded in BCD format.

FEh FEh

RA Receiver SA Sender Address DATA Transceiver's FDh

Note:

5-12

Command code 03h is echoed

by sending a return

RA SA DATA FDh

Command Prefix

Address

(Transceiver's

frequency

Command

stringterminator

COMPUTER:

The returned

(Computer

as if

EOh)

in BCD format

were

this

string that

address)

a 03h

contains a data segment with the

frequency represent

query.

the frequency of the

Part No. 74253

lst Printing

Printed in

U.S.A.

0l/97

CHAPTER

6

TROUBLE

SHOOTING

If the transceiver should fail to operate normally, use the

determining the

problem.

Often the cause of the

PROCEDURES

following

problem

is an

chart

overlooked

control or a mistake in entering information into the keypad. Of course,

(l

the Service Department

SYMPTOM

Transceiver

dead. no meter lamp,

display

-423-428-0364)

no

and ask

-

for

assistance should

POSSIBLE

Quickly

Master Reset Check

power

Check Check fuses supply Check

power

Check wall Be

tripping

Reset microprocessor

(2-4.2)

power

supply

power

switches

cable

on radio and

polarity

supply

outlet for

sure Ten-Tec power

off

due

CAUSE

on radio and

to radio

and

correct voltage

power

to high SWR

as

an aid in

switch /

you

may call

you

need it.

with

power

supply

supply is

(l -2)

of

not

Transceiver

Receiver

display

dead,

on

OK, no

meter

meter lamp

lamp

and

or

-

IN+

function

display

Check

s.09)

Check

SPKR

Check to

(or

AF

headphone

jacks.

(in

very low)

and RF

be sure

TRANSMIT

Check CRYSTAL

TION.

(1-8)

Check MAIN

for

Check Antenna items. Check tered)

If in

Check

Be

(3-1.08)

proper

PBT

(3-5.12)

FM,

MUTE

sure filter

antenna

control

check

USER

MENU 1)

minimum

GAIN

and EXTERNAL

(3-6.01)

radio is

FILTER

is installed.

/

AUX

Antenna

selection

coax

and

(should

SQUELCH

jack,

if used

set to

(3-

l . l6)

controls

not in

SELEC-

switch

(3-5.15)

associated

be cen-

(3-5.1

(3-6.10)

I

C-

)

Part No. 74253

lst Printing

Printed in

U.S,A.

0l/97

TROUBLE

SHOOTING

PROCEDURES

(Cont.)

Weak

Receive

Distorted PACKET

Distorted

Signals

SYMPTOM

Received

/ RTTY

Received SSB

CW / AMTOR

sisnals

POSSIBLE

Check

for

Check

Check Check

selection

Check

tered)

Check items

/

Check

(should

Check

(should

Check AGC

(should

MAIN

proper

RF

antenna

GAIN

ATTN

proper

for

(3-I.08)

PBT control

(3-5.12)

Antenna

AUTO

be off)

AGC ON / OFF

be on)

ON / OFF switch

on)

be

May need to activate

ATTENUATOR

Check for (3-1.02)

proper

CAUSE

/ AUX

switch

Antenna

selection

control

(3-5.05)

(3-5.09)

CRYSTAL

(should

coax and

accociated

NOTCH switch

(3-5.13)

switch

(3-5.07)

-20

dB

(3-s.0s)

mode

selection

switch

(3-5.15)

FILTER

cen-

be

Transmit

frequency different

from Receive frequency

Check SPLIT

(normally

Check

Distorted Transmit signals Check

Check antenna system SWR Check for strong RF field

Reset microprocessor

PROCESSOR level turned up too

high

-

Frequencies

in memories

will not store

Be

sure

quickly.

frequency will

MEMORY

Main or remote

will not change

tuning knob

frequency

Check Be sure

routine

-

Be

sure

SETUP

function

OFF)

RIT / XIT

ground

(3-s.04)

press

to

If button

(3-3.3)

LOCK

you

(3-

you

routine

(normally

are not

I .09)

are not in

(3-2.2)

(3-2.3,3-2.4)

system

in

M>VFO key

held

go

to SCRATCH PAD

too

OFF)

long,

in VOX

SIDETONE

(3-1.11)

shack

SETUP

6-2

Part No. 74253

lst Printing

Printed in tl.S.A.

01/97

TROUBLE

SHOOTING

PROCEDURES (Cont.)

SYMPTOM

Keypad

main

frequency

No

Readout present, commands

Clock resets

turned

Memories

clear

Beep

will

tuning

readout,

off

and

out

when

heard

not

knob

audio

to l2:00

USER

radio

every

respond

will

not

present

can not

when

Options

turned

l0 -

minutes

to input,

change

enter

radio

off

POSSIBLE

-

Reset

RESET.

respond, (2-4)

-

USER

microprocessor

If

radio

use

a MASTER

OPTIONS

(3-4)

Replace

3 volt

Lithium

(CR-2032;DL-2032)

(81606).

ID

timer

OPTIONS

turned

pg

See

on in

MENU

CAUSE

with PARTIAL

still

does

RESET.

MENU

4-18

battery

on

Logic

&.4-19.

USER

activated

G-4\

not

Board

Linear

RELAY

Linear

TX

amplifier

N.

amplifier

OUT

LINEARS)

Radio

turned

stays

on

O.

/ TX

in

will

not

jack

on rear

will

not key

jacks

EN

Transmit

key

using

panel

using

(

TEN-TEC

when

-

LCO

MENU

Be

sure

are

not

Check

continuity

Check cable Check Check

(pin

wire

Check

for

short

Check

option

not

TX

in

USER

turned

OUT

ON

/ TX

swapped. (3-6.09)

TX

OUT

/ TX

CW

KEY

/ KEYER

for

short

PTT

line (cable)

mic

cable

3)

computer

on PTT

VOX

for

terminal

line.

GAIN,

if

OPTIONS

(3-4)

EN

cables

EN

cable

PADDLE

for

short

on

unit

used

pTT

(3-1.09)

Part

No. 74253

lst Printing

Printed in

0I/97

U.S.A.

6-3

TEN-TEC,

I 185

Dolly

Sevierville,

Inc.

Parton Parkway

TN 37862

CUSTOMER

SERVI

423-42

TELEPHONE

LIMITED WARRANTY AND

TEN-TEC,Inc. warrants

year

ofone

from

the date ofpurchase, under these conditions:

l. THIS WARRANTY APPLIES

ranty registration card be sent to

insure

2. READ proper

3.

that any

operation.

IF TROUBLE DEVELOPS we recommend

selling dealer

that factory direct service dealers do offer warranty service and of course, have

bulletins

THE MANUAL THOROUGHLY.

Developing a thorough

is not

obligated

product

this

to be free from defects in material

ONLY TO THE ORIGINAL OWNER.

promptly

us

pertaining

is

expeditious and usually results in less

to this equipment will be sent

This warranty does not

understanding of this equipment is

by us to

perform

SERVICE

to establish

you

that service

our

4. WE ENCOURAGE SELF HELP. Taking the covers our customer service

will send

you

a replacement board which

technicians, with

your

you

help,

can change out. This will

can

identify

contact

in

or out of warranty.

off does not void the

POLICY.

you

as the

to

our customer

complete

a faulty

down-time

billing and when the defective board is returned, we will issue credit.

U.S.A.

and

It is

owner of

you.

cover damage rgsulting

your

responsibility.

service

It has

on the

support.

warranty. In many

circuit board.

be shipped

lroup

beon our experience

gquipment.

these

In

on a 30 day memo

period

for a

that the war-

This will

from im-

direct. The

Some

cases

cases we

also

5. EQUIPMENT RETURNED TO THE FACTORY

nal shipping carton. You

6. EXCLUSIONS. This warranty does not cover

polarity

ages,

In the event Ten-Tec

7. TEN-TEC RESERVES the right to make design

previously

THIS

8.

errors

transportation damage

of

liable

for consequential damages to

manufactured.

WARRANTY

pay

the freight

damage resulting from modifications

or

given

is

in

to us and we

damage

a claim must be filed with the

persons

lieu

of any

other

SERVICE OUTSIDE OF THE

by

provide

on all

you.

warranty

equipment

service on the equipment

whether they

procedure

the

customers but all freight

Many of our dealers

out of warranty service

service or is not conveniently located, follow

be

will

given

the same attention as domestic

paid

be

will

fees

must be

prepay

properly packaged,

surface freight

resulting

not recommended

from misuse,

carrier. Under no

property

or

changes without any

warranty,

caused by

expressed

U.S.A.

they sell.

it

sold

or not. If

outlined above.

back to

or approved

the use of this

obligation to

implied.

or

Many

your

dealer

Equipment

expense,

customs and broker

preferably

in the origi-

you.

lightning,

excess volt-

by Ten-Tec.

circumstances is

equipment.

modify equipment

them

of

also

does not

returned to

provide

us

Part No. 74244

This obsolete manual file is provided as a courtesy to you by Ten-Tec, Inc.

Ten-Tec's service department can repair and service virtually everything we have built going

back to our first transceivers in the late 1960's. It is our ability to continue offering service on

these rigs that has led to their re-sale value remaining high and has made a major contribution to

our legendary service reputation.

Printed and bound copies of all manuals are available for purchase through our service

department if you would prefer not to use this copy as your transceiver manual.

We can repair or service your Ten-Tec equipment at our facility in Sevierville, TN. We also offer

support via telephone for all products via during usual business hours of 8 a.m. to 5 p.m. USA

Eastern time, Monday through Friday. We have a large supply of parts for obsolete products.

Repairing a transceiver or amplifier yourself? Contact us for parts pricing information.

Service department direct line: (865) 428-0364

Ten-Tec office line: (865) 453-7172

Service department email: service@tentec.com

Address: 1185 Dolly Parton Parkway, Sevierville, TN 37862 USA

We have found it is most effective for us to help you troubleshoot or repair equipment with a

consultation via telephone rather than by email.

Suggested contact methods are:

Troubleshooting or repairing equipment – call (865) 428-0364

Other inquiries – call (865) 428-0364 or email service@tentec.com

THANK YOU AND 73 FROM ALL OF US AT TEN-TEC

Ten-Tec Omni VI Plus, 564 User guide

Specifications and Main Features

Frequently Asked Questions

User Manual