ICS AMT-1 User Manual

ICS

ICS AMT-1 Amtor Terminal Unit User Manual - CW receive mod for AMT-1 - AMT-1 Operating Guide AMT-1 Commodore 64 applications operator manual

AMT-1

USER

Amtor

MANUAL

Terminal

Unit

l.C.S.

PO ARUNDEL WEST SUSSEX

ENGLAND

Phone:

Electronics

BOX 2

BN18

(024 365)

Ltd.

ONX

~

S90

./

CONGRATULATIONS ON ADVANCED

You ASCII RS232 enclosed

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check

levels.

CONTROL and

Basic

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on 14.075MHz

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in

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at your

CONTENTS

1.

2.

3 .

4.

5.

6.

7.

8 .

9 .

10 .

11.

Introduction

Basic

Getting

Operating

Escape

Control

Transceiver

Terminal

Front

Internal

Computer

Cable

Theory

Codes

Panel

Connections

the

AMT-1

Hints

Codes

Connector

Displa

Adjustments

Interfacing

on

y

the

LEDs

with

air

the

AMT- 1

Page

1

2

4

5

6

7

8

9

11

Specification

Schematics

M

icrocomputer

Applications

Programmes

Page

Pages

Page

12

13 -15

16

l.

INTRODUCTION

The

AMT-1

radio

or

personal

system

Normal

also

provided

The

interface

input/output keyed ceiver the

transceiver

Th

ere switch normally on

the

All

of between or

accessory

The

interface data

from accepts board. logic

M:>st

terminals, used

as

AMT-l

ate

with

Do

IN REDUCING ITS SERIOUS WISE

2.

BAS

IC

Teleprinter

always of

the frequency lower,

characters

ions

of 5 data

preceeded

receiver followir,g although equipment to

be

problems

subject interference to

be an

incorrectly the

start-stop

several

bit

is

The

conceptual steps received error transmitting

data, detect data

bits, 7 are

of

one

The

vast result receiver,-

detect

is

designed

transceiver

computer,

known

as

RTTY

and

as to

socket,

tone

signals

mike

socket,

is

also a keying

from

transmit

be

connected

transceiver. these

connections

SKl

on

socket.

to

the

AMT-1

data

in

These

levels.

via

NOT

FEC

signals

terminals,

SK2

. The

them

at

OPERATE oR

Rm

DAMAGE

RESULT.

THEORY

communication

been

achieved

transmitter

representing

the

other.

are

by a start

decoding.

character

usually

electrically,

decoded

received

are in

which

when

to

fading

or

characters

mutilated.

taken signal the

output extra

enables

the

presence

polarity

majority

in

this

enabling

that

the

mechanically,

used

to

and

an using

TOR

or

ASCII

transceive

well

as

the

transceiver

which

from

and

extension

to

the

AMT-l

the

terminal

for

the

other

are

or

small will

AMT-l

either

YOUR TRANSMIT

OUTPUT

TO

YOUR

via

carrier

In

transmitted bits,

transmitted bit

It

by a stop

generated

on

radio

and

interference.

noise

which

in

the

wrong • printed technique

being

basis

of

to

ensure

does

not

character.

information

the of

transmitted.

and

four

of

randomly-occuring

3:4

ratio

the

data

is

interface ASCII

AMTOR.

cw

transmit.

provides

the

AMT-1

accepts

speaker

line

receive. This

the

can and

display

direction represented

computers

connect

can

75

or

TRANSCEIVER

f>'()DE

TO

UNDER

between

VDU,

teleprinter,

the

error-correcting

facilities is

via frequency-shift

to

received

connector.

from

the

AMT-l to

"push-to-talk"

normally the

transceiver's

sends

ASCII

or

printing,

from

which

directly

be

set

to

110

Bauds.

CCfffINUOUSLY wITHOUT HALF

the

POWER.

TRANSCEIVER

over

radio

frequency-shift-keying

frequency,

one

logic

traditional

by

which

is

separated

and

was

originally and links

causes a data polarity

character.

used in

error

the

TOR

that

necessarily

distant

errors.

are

of

being

receiving

erroneous.

links

level

RTTY,

various

serially

synchronises

from

bit.

This

decoded

suffers

which

Any results

Furthermore,

often

results

if a start-

system

an

error

cause

This

is

along

with

receiver

Instead

Three

bits

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other.

altered

station

an

are

an

audio

transaudio

will

line

be

made

serial

the

by

R.5232

can to

the

communic-

FIRsT

MAY

OTHER-

has

the

higher

and

the

32

combinat-

and

the the system,

in

modern

designed

from are

such

bit

in

is

that

in

the

an

done

the

to

of

5

are

errors at

the

to

SSB

and key-

be

in

by

from

mike

There

are

35

of

these character characters.

by

come accurately-controlled at

the

timing There

able

i n Automatic characters station ratio therefore put

. The delayed fade

or transmission rather characters. the

receiving being and

signalling ERROR

In

ARQ

7

-bit examines automatic In

this request this

way result transmission requested. mitted

quick

Th

is

gives

AMTOR

In

both essential achieved start controlled

In

practice,

"beat" Nevertheless, RTTY,

for including only, stations, to

any

broadcast

In

the

identity

contact,

followed the

intended process This

feature selectively who

may

As

well

and

make

facility

between

in

the

interesting

Apart tional be

used

AMT-1

can

be direct ASCII

over

possible

are

translated

set.

The

transmitting

receiver rather

are

test

than

printed,

lamp.

mode,

characters

in

back

break

signals

of

the

and

by

number

ARQ

from

RTTY

carries

bypassed, to

than

two

different

AMTOR:

Fequest

are

transmitted

can

choose

.

Up

be

in

second relative burst

of

both

EVen

station

suppressing the

the

each

one,

request case, the character

interference

errors,

of

Data

and

fashion

rise

on

FEC

and

between

by

special

each

contact,

timing.

it

3:4

ratio

FEC

ARQ

is both

its

nature,

whereas

of

messages

mode,

of

hence

FEC

by a change

ARQ

which

is

also

contact

be

monitoring a common

as

the

facility

or

receive

to

enable

two

other

system

to

be

the

AMTOR,

mode

to

send

out

the

FSK

the

air.

combinations

others· are

is

Forward

to error

transmission to

several

transmissions

transmitter in a block-

information

blocks

forth

to

ARQ

is

very

the

contact

both

morse

allowing

directly

used

start-bit

the

data

intervals. achieved by

using a start

types Error

(ARQ). In

which

of

half

of

before

the

first,

interference

characters

if

both

prevents

presence

and

if

to

repeat receiving to

the

transmitting

or

but

the

is

FEC

stations.

it

required

enables

able

code

modulator/demodulator

fading

merely a slowing-down

and

by

the

,

usu~l!y

the

familiar

air.

modes,

both

ends

phasing

and

possible

check,

considerably

much

FEx::

and

be

used

can

such

as

is

necessary

other

is

often

to

ARQ.

first

one

particular

to

calls

it

to

monitor stations. itself,

to

the in

transmit

code

conversions

as

mutilation

bits

by

accurately-controlled

of Correction

the

twice, and

the two

the

received

errors

of

so

will

of

transmissions

an

the

character

of

the

sends a group

The

any

containes

the

whole

station

does

each control-codes

two en

the chirp-chirp-chirp

accurate

of

the

signals

maintained

for

error&

and

result

better ARQ

features

between

be

transmitted

Thus

news

bulletins

station

used

The

arises

at

the

ARQ

frequency.

transmit

in

ARQ

mode,

This

but

is

listen-in

AMT-1

can

(CW).

the

ASCII

of 7 bits,

to

the

standard

special synchronously

The

communication

FEC

each

that a prolonged

only being

a few eJ:roneous

error

distant

time a repeat

stations

link,

better

than

FEC

to

before

at

requirement

start

mode

station

one

ability

included

and

The

and

control

problem

synchronisation

bit.

(FEC),

mode,

the

receiving

passes

the

codes

occur

in

the

character

result

mutilated, adjacent are

mutilated,

character completely via

the

of

receiver

an

error,

block

sends a repeat

same

synchronisation transmitted

know

the

and

to also

terminal

is

station

not

by

two is

side

receive.

microprocessor

.

generally

of

are working

frequency.

and

this

crystal-

to

occasionally

in

printed

than

FEC. The

is

that co-operating by

one

often

and

establishing

start

from

the

of

the

to

be

used

among a number

receive

the

AMT-1

of

an

is

not

since

other

contacts.

operate

other

processing,

to

and

communicate

and

32

RTTY

is

over

-

at

avail-

and

7-bit

3:4

can

out-

is

in

one

three

an

made.

In

the is

trans-

in of

is

at

the

errors

conventional

reason

ARQ

can

station

used

for

CQ

calls

.

identify

initial

to

FEC

signals

has

ARQ

contact

inherent

it

is

in

conven-

It

can

connect

the

a

always

also

in

of a contact, to

contact.

.

the

bu~

in

3.

GETTING THE AMT-1

This

section

ation

and

which

follow

be

consulted whenever system

working brackets formation

AMT-1

The

3~.I

POWER

SUPPLY

acts as-a

operation

give

after

problems

refer

can

be

shou

ld

SPKR

PTT

MIC

.

of

more

the

are properly. to

lat

found

be

connected

SSS

TRANSCEIVER

D

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Page

2

ON

THE

AIR

quick

guide

to

the

AMT-1. complete basic

encountered

References

er

sections

.

details,

system

where

as

follows:

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in

sections and

working, getting given

fuller

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This

serial k

eyboard,

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The

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terminal strapped

to

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further

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power

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connected

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reversal

voltage

IVER

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used

transceiver,

cable,

to

AMT-1

to

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creen

can

be

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the

transmit-changeover

cases to

the output

signals

in

section

CONNECTOR,

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a 5

data

pin 5 is terminal for

compatible.

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and

8.5).

signal

s (

8). will

Any can

into

terminal

details

The

AMT-1

or

may

CONNECTOR,

socket,

in

it.

and

the

2.

Pin 3 is

the

transceiver

should

taken

to

used

to

external

level

in

all

of

the

MIJ<E·~ocket

of

the

on

the

levels

(7).

240°

input

to

display,

these

pins.

need

polarity can

However,

interface

CTS

or

initially

the

"unused" in about

(8)

and

supply

is

negative

to

the

is

overvoltage,

blow

SKl

although a 5-pin

Pin 1 is

should

screen

be

similarly

vary

attenuator

some

line

on

connections

of

transceiver

MIKE

socket.

for

SKl

SK2

DIN the

the

data

Pins 2 and 4 carry not

be

most

RTS

control

be

question.

the

(11).

required, side

outer

protected

the

internal 1 Amp.

the

be

connected

of

which

the

audio

(u

sually

An

internal

the

audio

cases (7.

from

the

transceiver.

the

transceiver,

are

described

AMr-1

from the

output

and

pin 3 is

signal

connected

changed

terir.ir.als

directly

left

unconnected

state,

CTs·

and

screened,

may

lines

2.

line

connector.

The

be

contact

audio

3).

The

of

the

against

but

an

input

should

output

to

output be

needed Pin 5 is

the

AMT-1

from

SKl

being

connections

Pin l is

fr~m

the

levels

control

initially

by

internal

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without

from

as

appropriai:e

RTS

are

capable

supply

of

the

accidental

incorrectly

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via

be from

the

with

pre-set

level,

to

can

the

taken

more

terminal the

AMT-1 common are

smcll

alter-

the or

given

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fuse.

plug

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to

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be

to

the

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of

power

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operation.

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ESCAPE

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3.4

TUNING

The

of condition.

on

there input, a broad an slowly At some LEDs display across The noise

your

terminal

cover

of

power

step

verifies

LED

lit,

dimly

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sent

to

the

terminal

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the

be

displayed:

V:Ol

V:

number

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lit

condition,

mode)

the

letter

to

followed

from

to

send

DISPLAY

AMT-1

front

terminal.

is

tune

point

lit

to

the

display

as

The

the

any

to

The

character

(5.4).

change

in

function,

has

sufficient

at

the

passband

the

(5

LED

enter

ESCAPE

sent

the

unmodulated

cannot

the

AMT-1

to

the

through

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together

A

the

terminal

letter

I:????

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significance

LED

panel

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all

of

its alter ESCAPE

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from

by

the

some

computers

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ESCAPE

a 16-LED

panel.

To

observe

flickering

carrier

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tone

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finally

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AMT-1.

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interface

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the

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the

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break

out

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link

12

front

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the

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at

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lit.

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the

AMT-1

modes.

any

of

its

is

always terminal, modes may

RTTY

to,

for

character

means

of

key

may

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some

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panel

display

of

the

stops

RTTY

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versions

is

called

can

be

It

entered

or

CW

can

key

used

way

(11.4).

in

the light.

~he

seen.

receiver,

to

the

passband

display.

with

and

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check

obtained

line

of

is

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commanded

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para-

by

entering

in

the by

(morse).

RTTY,

normally

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for

must

in

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ESCAPE

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receiver

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AMT-1-

band

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be

other

located

key should from

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frequency

in

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LEDs

the

by-

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enter

a

be

centre

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in

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•

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A

.

3. 5

3.6

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tune

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in

light,as

signal

band

to the symmetrically

of

the

display.

to

receive

it

may

not

shift

commercial

other

(or

300Hz

filter

transceivers

ities, passband brackets ceivers

in suitably

this

it

of

the with a CW way if.

placed

passband.

RTTY

OPERATION

To

switch

T

he

RTTY

mode characters an

RTTY

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IDLE

copy

at

signal

LEDs

still reasons

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all,

polarity.

ESCAPE

text and If several signal RTTY reverse enter Baud-rate number 45, RTTY try

A

should

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FEC

ESCAPE

To

from

holding keying on routine key

on

(5.2).

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and

mode.

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indication

it

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lit

the

signal

mode

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transmit

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down

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some

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stop-bit

signal,

terminal. This

transmitter the

drive

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RVl

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the

(7

.3).

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set

carrier,

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type

transmitted appearing terminal ESCAPE time to

To

(ASCII

to

CW

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then the

line.

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displays

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the

terminal

section

end

an code

receive.

OPERATION

send

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light.

.l\MT-1

The

the

transmitter

the

AMT-1

tone

output

an

FSK

signal,

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the

signal

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always

signals

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passband.

may

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position

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75.

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signal

on

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CONTROL

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computers,

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on

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level

continuous-carrier AMT-1

to

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system

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the

keyboard

over

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terminal

on

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(5.6).

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transmission,

04).

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enter

ESCAPE

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line

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dots

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the

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AMT-1

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transmitter

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to

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notice

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AMT-1 standard,

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to

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Not

all

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CW

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ESCAPE and

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rate

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signal

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code

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and

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on.

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to

code

perfect

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line

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designed

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point

,

TRAFFIC

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are

to

.

reversed,

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LED

an

AMTOR

done

by

function 01

(11.4).

the

that not

kijust

level

RTTY

text

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the

then

enter

do

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each

refer

return

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the

PTT

earth

elements,

CW,

since

(9 .

to

3).

Page

3

The

transmitted

is

sent.

ing

speed,

To

change

the

required

C

to

speeds

10.2

3.7

AMTOR

Enter

LED

will

display

will

If

such a signal until a

characteristic

It

is signal emits

detected and

IDLE LEDs change line

When will At

the

as

the

If

the STBY printed

To

make

terminal Enter by

entering

end

with

the

"end

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the

signal it

by signals by

interleaved

at

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drop

the

tuning

trying

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this 15

seconds, to

start It

is a characteristic the

distant quite and

the

The

terminal 88888,

again

always

Tc

exit

The

signal call.

repeated

continuously. This· 4-letter

station It

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to

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set

ESCAPE I followed

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FEC,

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light,

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the

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this

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to

the

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unmodulated by

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end

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of

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the distant signal

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fades

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an

FEC

(ASCII

the

message

control-D control-D of

transmission"

characteristic

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signal

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that

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entering

and blinking

signal

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mode

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text

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of

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display

to

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it

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synchronising

signal

possible.

ERROR

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%%%%%characters.

to

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its

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the

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CW

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50

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setting

RV2.

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together

light.

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tuned sends a phasing rhythm

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carrier.

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mode

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dots

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transmission,

station

out

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code

02).

at

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-

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(sending

the

PHASE

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to

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In

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well

on

display

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quickly

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by

the

in

AMTOR

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of ·the

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to

its

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by

the 4 letters

return

STBY

to

lamps

t.o

type

faster

use

the

enter

on

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the

this

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the

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will

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transmitter

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code

04).

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properly

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code

same

frequency,· indicated bursts then

long

signal

is

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to

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will

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display a few

endin~

to

terminal. short

bursts),

LED

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signal.

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error-free

entered

signal.

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garble

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strings

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this

sync.

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when

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simply

may

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making

terminal

the

RQ

LED

selective-call

station

operation

group,

callsign.

unique

chosen

AHTOR

standby.

will

light.

the

terminal

than

the

space

bar

CW

between

ESCAPE S followed

(5.10)

followed

use

mode.

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sending

section

The tuning

AMT-1 received. will

consulting

AMTOR

LED.

signal

nothing

recognisable

from

time

from

pattern

to

display

display, present the

at

will

is

received,

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to

pauses,

it,

will

TRAFFIC

the

been

switch

transmission

important

ensure

signal station

an

idle

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dot"

longer

type,

received

STBY

LED

of

transmission"

code

garble

control-a

and

end

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in

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sound

of

an

possible

06).

of

signal,

it

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to

the

ARQ monitor two

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to

with the

by

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in

as

the

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signal

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on

continuous

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lock

·

a~curately

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·

~gain

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to

force

the

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signal

IIIII,

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displayed

is

FFFFF,

control-F

the

of

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stops

ARQ

display

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each

The

entering

idling.

phasing

on

of

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AMT-1

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code

control-D.

an

will

code

monitored. for usually

by

(5.5),

In

this

as

it

send-

words. by

FEC

happen

time.

an

RTTY

it

is

the

FEC

the

(9.2)

LED

terminal.

come

code.

the

that

one

can

only

first in

station changes will

and

also

for

unit

if

is

clean.

a

the

station

may

case,

by

as

•

on

on.

to

Page

4

If and a station station the bursts calling appear an is

selcal While control-A

letters The will call

LED then

With the of

station characters signals

over

stations

bursts which

ing

To

sending whereupon

switching

(10. 2)

If

the

sequences LED output progress. and

If

15 take station called re-synchronise. operator

Typing

internal If,

re-established

station

time-out

one ed

4.

OPERATING

4.1

In

means

Two

between

another

These

are

translation

user

However,

text

If

erroneously,

terminal

force

shift.

The

extra

return,

ensures

a new

eived

transmission,

practice

carriage

you

have

will

transmitter

between

station,

at

the

ARQ

contact

to

initiate

code

the

AMT-1 (ASCII

of

be

the

LED

keyed

PHASE

. When will

be

type

your

either

direction

two

ways.

to

end

the

procedure.

will

to

short

must

be

station

end

an

ARQ

should

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if

you

propagation

contact

,'

being

i~dicate

.

~

it.

will

this

also

during."local

the

ERROR

seconds

or

place,

will

station

is

may

continue

buffer

in

the

PHASE

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can

and

100

by

the

required

RTTY

and

of a code

of

these

one set

"lettershift"

automatically

need

not

it

gets

in

the

received

(ASCII

the

following

AMT-1

has

shift

linefeed, that a distant

line

in

shift

to return

entered

calls

respond.

will

your using

· The

be

the· received

and

his

terminal.

can

be

initiated.

the

ARQ station

is

in

code

station's

light, and

call

the

01)

of

the

other will with long

the

other

message

of

sending

normal

his

transmission

(no

gap

station

When

changed

and

vice

with

enter

of

station

with

to

initiating

between

this

control-C

the

control-D

contact"

replaced

method

of

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+?

other

have

used

to

contact,

"end

stations

have

problems

between

may

pause

sometimes

d

by

In

this

whilst

occurs

at

the

copy•

or

RQ

LEDs

more,

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stores

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the cease

1'b

intervention

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at

either

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needed

condition,

within

to

changed

by

30

STBY.

entering

revert

be

seconds

time-out

HINTS

AMTOR

modes,

with

of

30

used

30

figures

32

to letter

are set of

and

generated

from ASCII

be

sometimes

the

aware

wrong

text

code. of

happens

character

appears

enter a DELETE

code

127,

received

an

automatic

character

or

after

NULL

station

the

correct

will

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therefore,

start

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transmission

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own

selcal

this

code,

STBY

to

long message This

is

LED

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keyed

oneself,

called.

AMTOR

mode,

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the

bursts

to

replies, the

the

IDLE

the

distant

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can

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way

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them) .

to

commence

is

completed,

over

is

from

The for

versa.

care,

(ASCII

last

station

(ASCII

code

back

to

STBY.

with

ARQ

two

stations

be

held

either

the

case,

the

repeats

the

receiving

at

the

are

on

continuously

operation

the

original

call

and

keying

the and

by

this

operation.

end,

not

overflow

contact

seconds,

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to

any

value

ESCAPE T follow-

figure

transmission

different

switch

ensuing

characters

and

punctuation

"figureshift"

by

the

In

most

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set

in

figure-shift

character

or

HEX

7F).

text

system

either a carriage

character,

will

shift.

at

t he

it

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always

feed.

in

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then

your

will

go

with

of

the

you

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way

that

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using

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the

this:

To

enter

by

the

four

code

.

transmitter

initiate

the PHASE

LED.

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station.

ARQ

contact,

in

one

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the

change-

the sending other

method

the

receiv-

code

03).

to

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code

be

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will

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contacts

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by

are

poor,

repeat

or

data

in

up

ERROR

terminal

end,

sendinq

will

calling originally attempt

either

provided

(4.2).

is

not

then

the

30

seconds between

(5.11).

is

by

combinations.

text and

marks.

characters

AMT-1

in

cases

the

received

by

mistake.

from

the

This

back

to

letter-

for

sending

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always

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start

the

of

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with

a

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out,

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to .

RQ

end.

for

to

the

the the

will

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reca

This also sending and

ensures

line

does

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AMT-1 carriage entered ensures ing

end, the

terminal approaching disabled

During into

the entered the

n

be

terminal ahead

facility

if

text

it

will

Since, can

only transmission AMT-1

does if a longer tune

in,

a

suitable common of a transmission is

not

4.2

The

internal transmit

allowing a useful

if

required.

will

be

user's

RTS

output

the

buffer

To

cancel

(ASCII

Note

that

buffer

(in

RTTY

the

remaining

If

control-X closedown The

transmission

In

the control-C

ion

during reason probably broken have

to

be

confusing

in

the interrupts the

interruption,

and

enter a carriage

shift.

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normal

put

out a CQ

a

station

is

normal ing

your

call, a distant

either

previously procedure

is

to

call a station

is

ending a contact. to

do

this.

maintain a listening

case a selcal establish

When

making happen tune,

indicated

tempting

tuning

will

result and

this

having

has

the

and

receiving that

not

overrun

also

has

return

after

the

that

overprinting

particularly

is

the

by

entering

RTTY

and

AMl'-1

will

even whil

be

transmitted

unit

bas

is

entered

build

up

when

transmitting

synchronise

must

this

period

then,

after

pause

in

RTTY

of

helpful

lost.

on

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It

terminal

from

is

full.

the

if

or

buffer

24,

there control-D FEC)

code

when

text

is

has

ta.ken

"break-in"

and

that

leave

ARQ any the

is

transmission

be

pressed

to

middle

of a transmission.

you

in

method

call

after practice

own

selcal

FEC

or

ARQ

entered

(6.5).

It

transmitted

if

the an

to

will

retune

ARQ

the

correct

This

in

the

probably

that

dial.

to

effect

of

print-positions

the

distant

the

an

automatic

and

linefeed

60th

character

if echoing end

the

of a line.

ESCAPE

ARQ

contacts, it

st

held

in

the

as

fast changed not

available

faster

in

the

buffer,

in

when

start

with a period

automatically

would

help

entering

before

commencing

sending a line

to

allow

FEC

mode.

buffer

amount

buffer

is

possible

an

pin 4 to

See contents

HEX

is

still is

end

will

of

intelligent

section

18).

entered the be after

the

is SK2

or

entered

place,

will

then

section,

it to

contact, subsequent remainder

in

figureshift.

quickly

the

distant

this

way,

then

enter

return

of

establishing

and

then

hearing

to

code

him

make

during

station

mode,

provided

your

selcal

Another

directly

You

is

also

common

watch

station

replying

by

is

call

using a transceiver,

station

an

off-centre

this

error

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transmitter

result

at

his

end.

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receiving

end

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the

system

if a space

in a line.

can

not

occur

user

is

text

and

This

N ~ (5.7).

is

receiving.

internal

as

possible

to

transmit.

on

FEC

six

as mode,

signal

FEC character

it

than

the

for a short the

distant

control-B,

typing.

of

the

distant

will

hold

text

to

fills, any

to

prevent

computer,

inform

(8.4

completely,

some

text to

contact

transmitted

control-D

then

the

idle when

was

mentioned

the

other

must

be used

+?

sent

of

the

to

correct

operator

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and

you

control-X

linefeed

contacts

listen

for a reply,

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calls

the

can

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code

way

to

initiate

in

ARQ

must,

of

course,

for

AMTOR

on a common

on

the

frequency

available.

comes

tuning

by

adjustment

should

frequency

in

the

that

both

are

synchronised

station's

line.

to

generate

character

at

the typing is

not

facility

possible

Any

text buffer,

when This

mode,

will

in

distant

is

idling,

of

idles.

period,

station

simply

RYRYRYRY

station

960

be

characters,

typed more

this

the

computer

and

11.l). enter

waiting

end

the

(in

ARQ

before

and

closedown

the

buffer

that

station's

with

after

distant

The

DELETE

this.

if

he

is

the

distant

wish

to

clear

to

set

on

in

FEC

mode,

call.

At

call

you

course, using

the an

mode,

perhaps

know

stations

frequency,

will

back

display.

be

resisted,

changing

distant

the

first

a

is

This

receiv-

faster

than

aware

of

can

be

to

type so

and

will the typealthough, per

second,

CW

mode.

stations

each

The

but to

leave

The

practice

at

the

start

to

tune

in

advance

text

entered

if

the

by

using

that

contrcl-X

in

the

transmission

mode),

then

closedown.

before

is

cancelled.

has

the

emptied.

use

transmiss-

care

. The

the

break

station's

key

will

It

can

also

interrupted

station

respond

the

Ch

the correct

RTTY

or

to

AMTOR,

to buffer

is

announc-

the

end

back

that

in

you

ESCAPE

ARQ

contact

as

his

selcal to in

quickly

it

can

slightly

rt

of

the

main

as

station

in

·

the

of

will

to

call

it

of

have

I

he

which

off

-

is

it

well,

This operations at·

for

control

the station ition, tuning contact. for It frequency w

atching midp comes on

req"~esting

tune used

The ed point Remember

is

even

frequency

achieved

l

osing the the station

new seconds.

4.3

There associated speeds an sending characters

13.33 110 Baud

the Text

buffer some capable Bauds,

than 110 operating

There operating rate m

ay,

text build

in

than

(960 available applications normally

CW

an to at

terminal,

this the

ESCAPE CODES

5.

From

other using

be

detail. ESCAPE,

condition, mode LEDs,

can

result

the

calling untouched,

receiver

should

and

use

display

A

example,

is even

possible

independently

the

oint

of the as a result

a

in

his

to

optimise

power

output

progressively

just

before

that

reduced

too

possible

or

in

any

text.

first

to

called

station

begins

frequency

are

some

with

at

RTTY

each signal traffic

will

per

sec.

ASCII,

terminal

will

build up

and

this

text

will

of

copying

it

cannot

10

c.p.s.

Bauds,

and

at

is

no

restriction

in

receivable however, entered

up

in

75.

the

mode

The

AMTOR

characters)

to

build

is

sent

at a non-uniform advantage keep

the

high

cw

speeds,

the

will

give

output

morse

changing

t he

carried

ESCAPE

out.

These

but

as

then

in

an ends.

station

and

leave the

main

remains

station

endless

to to control

his

tuning central

technique

to

adjust

RIT

is

both

clarifier

different

one

of

RQ

LED.

Set the frequency to

range

outside

of

the distant

repeat when your

receiver!

no

far

to

band.

the

change

the of

the

during

the

text

for

make a

With

middle

The

frequency

A

similar

transmitter

an

RQ

LED

will

a moment

pre-arranged

care,

of a contact

calling

following,

to

send

the

change

the use

of

received at full be

entering the

characters

in

eventually

lost.

RTTY

the

operating of

the

speed

terminal

of

the

Although

at a data

if

inherent

end

is

If

then

at a rate

may

be

handle a character

when

operating

no

faster

75

Bauds.

than

on

AMTOR mode,

on AMTOR

as is

be a problem

at

110

Bauds

transmit

or

in

transmit

and

extend

(11.l) • Ch

up

that

letter

RTTY

the

this

in

the

some

spacing

buffer

mode

buffer

RTS when slow buffer

text

especially

buffer

may

to

always

uneven

rise

code.

sections,

codes

if

the

shown

key,

another

from

These

AMT-1

by

further

will

are

the

it

one

normally is

ESC

series

The

rule,

leave

retune

therefore, his any

(RIT).

in

the

central

to

ensure

throughout

may

be

crystal-controlled.

the

transmitter

the

receiver,

of

which the

station

signal is

operation power

can

ARQ

contact

starts

be lost

or

to

if two,

change

this

can

without

station

in

this

so

that

phasing

tak

es

pattern

longer

limitations

different

AMr-1.

10 internal

at

the

per

100

with

unit is

will

For

Bauds,

no

at a rate

operating

be

second.

64 ch

fill.

the rate

rate

with a terminal

6.66

c.p.s.

receive

when

from

the

maximum

6.66

c.p.s. There

transmitting,

the

when

at

Baudrates

is

much

speeds

terminal

operating

handshake

required speed

CW,

anyway, character is

held

correct.

in

If

from a 75

remain

letter

spacing

should

be to

clear another

mode

functions

now

be

described

preceeded

already

ESC

code

LED

is

in

plus not

of

retune

main

tuning

offset

with

The

called

pos-

his

the

needed

whilst

the RQ

off

can

level.

be

reduc-

to

the

come

on.

the

power

It

is of

be

must

be

way,

with

the

calling

on

than

transmission

example,

and

is

gaps,

in

sent

to

aracter

If

it

does,

unit

is

of

100

faster

when

character

may

lower

larger

line

is

in

computer

text

will

and

since

rate,

it

the

buffer sending Baud

empty,

in

that

by

may

also

in

by

the

ESCAPE

all

four

needed.

is

if,

LED

be

the 15

if

of

at

as

is

and

Page

5

5.1

5.2 This

5.3 This

5.4

This

The

receive Bauds. enabled. generator d received ESCAPE mitted from on

5.5

ESCAPE

This

which the function

followed l entered, revert being When revert

5.6

ESCAPE This

appear it as a separate its be

This lack especially indicates accepted

ESCAPE This

FEC if

code

signals

the

A

selcal transmissions ored,

by

using

described

ESCAPE

B

mode

the

AMT-1 entering the 45 01 the unit are a number terminal return being the to

ESCAPE

desired

, 50

and

leading

will

set

second

the

B,

and

99.

to

in

will

direct

entered,

ESCAPE

C

code

ESCAPE

D

code

the

microprocessor terminal

is generator. received to

the

audio

terminal.

transmitted

Baudrate

any

code

under

or

these

filter, l'Cte

isconnected

signals.

code

directly

this

again.

I

code

"

ident"

of

has

then

the

FEC

transmissions.

unit

to

by

etters

A - z

the

to

entered,

the

fourth

to

L

code

i

nput

from

on

will

be

own

"echo"

disabled.

the

echo

facility

is

achieved

cf

t~e

by

enters

the

AMTOR

may

code can

control-B,

be

received. has

been

made,

standby

entered.

or

control-A,

above.

enables is

t o

follow

the

user

operate

it

with a two-digit

to

when

Baudrate. Although the

75, the

be

the

l'Cte

zero

set

the

that must to

same

0 - 9

AMT-1

if

be 100 Baudrate.

range

will

Baudrates

entered.

Bauds.

is

print a questionmark

to

the

ESCAPE

digit

the

ESC

has

and

been

mode.

RTTY

entered,

condition.

enters

This

switched

mode

enables

the

unit

the

turns

the

used,

in

when

the

passed Serial

is

fed

In

and

received

is

determined

speed

can

conditions,

which

that

in

is

necessary

on.

from

the

The

in

this

over

is

to

the unit. will

not

been

will

not

the

required

are

accepted.

terminal

ESCAPE

both

letter

ESCAPE

on

or

terminal

display.

with

keyboard

or

"local

In

the

of

by

AMT-1

echo

ARQ

mode ( w

each

the

receiving

CW

mode,

"direct"

is

bypassed

direct

to

data

demodulated

directly via

this

mode, ASCII

(simultaneously,

by

be

transmitted

subject

limits

this

the

mode

in

The

PTT

transceiver

AMT-1

user This

used

will

An

radio.

the

to is

in

since

mode .

the switch

respond

respond To

set the

four-letter

If

will

display a questionmark

condition.

ESC

and

ARQ

has

been

condition.

off

the

is

sent

This

is

the

terminal

and

display.

copy"

event

that

the

AMT-1

entering a zero

facility

here

character has

station.

mode

ARQ

can

ARQ

signals

or

set

the

in

the

RTTY mode.

common

accept

any

below

If

Both

transmit If a character entered

and While

LEDs

will

the

as

previously

or

bypass

and

serial

the

output

from

the

terminal, and

through

to

the

top

speed

the

PTT

order

to

line

must

to

allow

not

The

respond code will only

ESCAPE

power

set

the

four-letter

ARQ

mode.

the

unit

to

!

\NY

ARQ

ident,

group.

any

other

Whilst

LEDs

will

entered,

"echo"

facility,

back

to

the

normal

effectively

If

facility,

this

cannot

will

have after

is a distinct

the

presence been

from.whence

also

be

or

may

received

ARQ

be

FEC

control-F,

Baudrate

number,

Baudrates

figure

10

is

are

entered,

00

and

other

by

mistake,

the

AMT-1

the

Baudrate

be

lit.

AMT-1

will

described.

mode ,

in

data

frequency-shift

incoming

serial

cap.

if

required).

output

code

the

limitations

to

is continuousl

keep

the

be

externally

it

about

to

line

to

way

suppl~·

to

off

selective

group

If

the

was

switched

call,

enter

Only

character

the

ident

be

lit

the

unit

the

terminal

way

_

the

terminal has

then

this

be

to

be

the

L.

disadvantage,

of

the

transmitted

monit-

as

at

which

After

indicating

between

required,

receive

than

the

will

When

return

which

from

the

thus

be

indeed,

system

of

120

tone

pass

any

be

trans"escape" and

then

call

to

ESCAPE

but onl

ESCAPE

the

is and is

.

will

whereby

to

in

which

working

should

done,

then

disabled.

The

echo

and

are

the

is

the

y

I on, y

I

Page

6

ESCAPE

On

5.7

ESCAPE

This

on automatical and a line substitution the ensures station's and nevertheless to neat linelength,

disabled

ESCAPE N 1.

5.8

ESCAPE This

terminal have This test printed

the

the that respond

set

is on. Note even necessary to" AHTOR

!i.

5.9

ESCAPE This

AMT-1

it

receive,

5 • 10

ESCAPE This

minute

should

a Use a

Entering

character questionmark

5 .

11

ESCAPE

This ARQ

in

ing

fore

a

entered,

6.

CONTROL

A

executed control

by

k

same

active

6.1

CONTROL-A

In

receive

by

it

L 1

is

switch-on,

N

code

off.

turns

It

or

ly feed

60th

character

that

printer.

linefeed

format

the

lines..

the

with

Q

code

causes

values

been

programmed explains that

the

after software. ident

will

no

ident to

any

to T:30,

S:20,

and

that

though

the

mode

each

R

code

selects

will

to

receive

transmit,

as

previously

S

code

allows speed enter a two-digit

similar

fashion

leading

00

will

other

T

enables

phasing

seconds

to

two-digit

condition,

during

resynchronise

giving

up number

with

CODES

part

from

ESCAPE

by

the

codes,

depressing

eying a letter.

meaning

in

all

RTTY

mode,

to

four

transmit.

letters

initiates

used

the

echo

the

i s

enabled

ensure

are

for

any

position

no

line

codes

are

the

auto newline

echoed

When

it

auto-newline

ESCAPE

the

of

all

the

print AMI'-1 the

V:

When be

shown

has

been

ARQ

call.

the

Baudrate

the

L:

all

mode

re-enter

time.

RTTY

and

the

that

will to

zero

set

than

will

be

the

user

which

and

00

giving

sequences,

AMT-1

usually

the

CONTROL Not

in

different

modes.

this

to

an

ARQ

to

these

RTTY.

for

returning between

code form

turn

the

is

echo

enabled.

automatic-newline

at

that

inserted

space

is

In

switch-on

both a carriage

into

which

in

any line.

too long

cw

m

ode,

not

carriage

transmitted,

occurs for

function

text

on

the

is

desired

terminal

to

function

N ~ and

AMl'-1

via

of

to

the

other

enabled

output

parameters

ESCAPE

out when Q is

is working

is

the

set.

and

the unit as

N:

version

I:????,

The

to

are

. The number

is

switched

The

unit

AMTOR

B:45,

both l at

parameters

may

be

changed.

the

ident

before

mode.

control-D

on

Control-A

returns

selection,

described.

user

to

set

used used

in

after

for

less

is

the

and entered,

be

number

that

speeds

100

w.p.m., a number printed.

to

set

the the unit

the

Ol

seconds

other

to

and

time-out

length

will

STBY.

i.e.

the

with

100

other

are

selected

entered

all

In

call.

from

key

and

control

modes,

forces

the

AMTOR

mode,

the

outgoing

If a character

nor

on

again.

facility

and

will

return

the

text

in

after

This

the

distant return

but

serves

into

use a different

may

be

with

to

the

that functions. entered

number

of

on,

to

indicate will

not

timeout

the

CW

is

speed

switch-

are

retained

It

is

not

entering

it

the

change

to

will

word-per-

cw

mode.

one

the

S, Baudrate. than

10

w.p.m.

if

a

in

of

time

keep

try-

station

be-

Again,

99

can

be

:

functions by

ASCII

the

terminal simultaneously codes

have

are

all

AMr-1

from followed selcal

code,

other

to

in

the

6.2

6 • 3

6.4

6 • 5

6.6

6.7

6.8

6.9

7.

7.1

than a letter the

unit

AMI'OR

will

STBY.

Control-A

CONTROL-B

In

RTTY

mode

AMrOR

it

this

mode,

A.

In

cw

mode CONTROL-C This

code

if

has

During

the

in

distant

other

mode.

in"

no

effect CONTROL-D In

RTTY,

In

ion" transmitter

control-0

switching the

has

If then to the

Control-D

control-D

AMTOR

FEC

code

station finished

control-D

closedown

send.

listening

to

and will both

that

In

has

transmit, be

sending is

the

CONTROL-E This

code

are

character

is a special

to

can

described

this

of

some

should

ASCII This of

which terminals, character control

control-E

CONTROL-F This

is

only

the

ARQ-listen

valid

CONTROL-G This

is

not

BELL

character

The

echo

This

to

respond

it

will

If a BELL

will

strictly a control

back

ensures

that

to a control-G

not

do

code

send a control-G

CONTROL-X

In

RTTY,

CW,

any

text

• .

control-X

ARQ

In

~ o

cancel

the

buffer been contact,

entered

DELETE In

RTTY

and

any

subsequently

character

signal

Carriage

are

treated They control lettershift

SKl:

Pin 2 is

carried

metal

from to

pins l and 3 should

AMTOR

mode.

which

has

retur

as

also

have

character

or

TRANSCEIVER CONNECTOR

the

common

by

this

chassis

external

(A -Z)

is

entered

print a questionmark

has

no

effect

code

has

the

same

initiate

as

it

is

sending.

has

the

an

it

no

same

ARQ

station

will

effect.

effect

contact,

modes.

sent, reverting

cause

stations

entered

will

ARQ-listen mode no

effect

be

sent be

interpreted

"status"

sort.

by

be

switches

be

and

used

in

it

followed

the

contact

to

control-D

any

text

whilst

delayed

returns

in

one

from

in

code

It

the

terminal,

with

AMl'OR

from

causes

by

to

STBY.

that

the until

mode,

the

cw

mode.

and

causes a specific

the

AMl'-1

by a computer,

section

may

might

care.

mode,

mode.

code,

to

be

transmitted

to

the

so is

and

which

addition,

signal

received

It switched

n ,

linefeed text the

terminal

if

the

if

an

received

to

FEC

may

will

modes,

can

and

effect

to

be

terminal

by

issuing

alarm

over

the

terminal,

transmit

not if

control-D

the

end

effectively

this

text

be

used

into

and

passed

of

causing

preceeded

will

code

yet

of

has

into

figureshift

NULL

to

figureshift.

earth

AMT-1

be

return

It

is

to

ensure

The

screens

connected

also

socket. of RF

the fields.

as

any

and

in

effect an

control-D

can

cause a "break-

transmit an

"end

switching

During

to

be

This

is

in may station

the

control-D

unit

to

(ll.3).

or

may

be

interpreted

and

where

but

to

the

be

an

itself

an

is

transmitted.

the

radio,

modes, have

the

transmission

cancel

the

effect

the

to

correct

control

the

transmitter.

t he

by

the

for

the

strapped

good

of

to

of

these

then

revert

CW

mode.

as

control-

FEC

transmission.

in

RTTY

Control-C

to

receive.

of

transmissoff

ARQ

terminated,

works

only

send

mode

be

in

the

is

in

station

terminates

to

STBY.

the

terminal. the

Ch

most

not

print

for

this

it

will

cause

distant

asterisk.

is

configured

audible

the

however.

control-X

been

sent

had

previously control-D.

of

"lettershift"

'1IlY

in

error.

characters

appropriate

other

to

immunity

the

leads

this

pin.

four,

to

has

the

contacts,

when

and buffer. receive, switches

non-

details

simple

as as

a

reason

initiate

a

station.

alarm,

AMT-1

will

from

or

forcing

received

signals

the

a

Page

7

Pin l is

7. 2 input

should This speaker better of volume

ing

is phone-patch spare

'lb

range, varied

play

slightly

7.3

Pin 3 is transceiver between preset, microprocessor,

line

transmitter completed. radiated. audio is

MIKE

too input lead. normally

It control resistor correct

somewhere to or side

output

7.4

Pin 5 is from which enters positi when popular therefore l

ine socket. transceiver type, between supply. transceiver

Pins

8.

SK2:

8.1

Pin 3 of other to

8.2

Pin l is the ponds to a in

reversed,

be code either

(sometimes the even is DIL

the

audio impedence be

between

signal

may

the

audio

(volume)

be

varied level

available

be

of

the

often

socket if gain can

audio

socket

on

tune in

up the

zero

the

in

level.

not

or

audio

.

and

the

an

vary

down.

This

ch

eck that

should

RVl. The

turning

does,

such

that

until

This

Pin 3 can

input

on

available

input.

high,

the

.

~rmally

If

the

fit a resistor

connection

This

will

drop

expected

should

be

possible

in

its

normal

such

that

transmitter

near overdrive spurious

of

the

stage

the

connects

transmit

ve

in

receive

emissions wanted

the AMT-1

with

the

is

not

PTT

by the

mode.

respect

condition.

line

transceivers.

be

In

will

the is

made

normally event

not

which

then a small

the

AMT-1

The

contacts

.

4, 6 and 7 are

TERMINAL CONNECTOR

SK2

is

on

the

chassis.

the

serial

negative

the

stop-polarity, polarity.

voltage

the

internal

The

data

one

start

or

two

the

pins

the

A.'fl'-1

AMI'-1. A

to

the

start

negative

idle cut.

with

one

condition.

called

AMT-1,

and

75

SW3

The

or

can

110

(10.5).

parity.

either

switch

input

from

is

lOOK

SQn

V.

derived

the

transceiver,

can

control

(or

to

the

from

or

it

MIKE

socket. audio unmodulated The

position

as

output

Ohms

and l V.

from

be

taken

such

turned

AMT-1.

the

accessory

can

simply

level

the

audio

from

the and

is carrier

of

the

is a sinewave

l

v.

rms

by

is

means

keyed

tone

on a little

there

is

the

changeover

ensures

be

transceiver

audio

at

the

no

that

no

connected

if

it

will

level

in

series

transceiver

audio

from a microphone.

to

leave

the

position.

RVl

can

be

middle.

MIKE

signal,

drive

input

can

level

It of

be

produced

even

set

is the

overdriven.

connection.

an

open

collector

line

to

ground

The

PTT

earth

line at

to

This

A

simple

between

PTT

socket.

that.the

of

the

relay

output can

not

common

input

the

be

available

"earth-to

should

and

be

connected

connected.

earth It

from

voltage

AMT-1

PTT

is

the on

and a positive

The

the

the link the

8-bit

bits. parity either

rate

terminal

AMT-1

polarity

LJ.O

AMT-1

data

The bit) zero,

accepted

selected

to

If

into

bit, stop the

be

data

Bauds,

receiver. the

audio

rms.

the

external

but

it

is

from a point

that

the

off)

without

An

audio socket

be

wired

within

the

that

the

tuning

level

is

AMT-1

can

of

the

and

off

after

to

transmit

to be

internal

the the

and

on

drive to key-clicks

to

an

auxiliary

such

an

taken

the

with

end

MIXE

to

input to AMT-1

the of

that

gain

be

from

level

Choose a series

to

give

its

the slider

with

important

transceiver,

on

the

either

transmitter

is

driven

if

This

transistor

when

the

must

be

the

transceiver

is

true

of

connection

and

the

on

the

input

on

transmit"

be

connected

the

+ 12

V.

to

the

return'"for also

connected

terminal

this

should

on

this

needs

the

bits,

ignored

one,

by

AMI'-1

be

ASCII data

odd, the

internal

to

and

in

must

eighth is

The

level

loud-

ahead

speaker

affect-

output

or to

correct

can

dis-

varied

the varied

by

the

PTT

is

are

the

MIKE

the

not

AMT-1

all

can

PTT

MIKE

the

to corresvoltage

output

when

be can

bit by or

AMT-1

be

is

8.3

Pin 5 is The pin the character

to a control-E In output

8.4

a

Pin 4 is which !bwever,

ter, mission. buffer RTS flow

in

cannot as before age a the this be

8.5

Pin 2 is For It opposite by with disk AMT-1 then character when of position. AMI'-1

must

9.

FRONT PANEL

There hand principal

·

prising analogue The within

the

ASCII logic levels l.

The

parity

AMT-1

bit

output.

this

case

the

signal

can

the

RTS

can

safely

its

the

For

fills

data buffer. accept

purpose

AMT-1

example,

during

The

until

data

when

changes.

of

the FEC-receive

the

distant

on

this

line

the

applications,

line

voltage

will

is

negative.

by

CTS

negative

AMT-1

inverted

most

serves a similar

direction.

the

AMT-1,

another or

might

any

e.g.

task,

cassette.

be

received

buffer

CTS

is

be

will

signal

If not

held

taken

this

negative

this

DISPLAY

are

three

one,comprising

modes

green

LEDs,

indication

left-hand

each

display

mode. The

output

and

outputs

with

the

This

character

parity

be

(Request

be

ignored

can

entry

cemputer

the

This

when

or

ARQ-listen,

station

indicates

still cutting

(Clear

purpose

when such

During

missed.

text

within

positive

can

be

is

permit

displays

four

the

AMT-1 is a tuning of

from

data

format are

exception

is

sent

from

bit

is

inverted

To

in

is

to

inform

or

cannot

if

the

of

should

AMT-1

line

also

it

is

has

that

accept

control

The

polarity

link

LK4

'lb

Send)

this

pin to

It

can

stop

the

computer

as

storing a block

this

If

this

will

be

the

AMT-1.

(or

reversed

done

and

any

data

if

it

is

LED'S

on

the

red

LEDs,

is

in.

the

frequency

indicates

significance

the

AMI'-1

are

zero

(start

of

when

the

terminal

one.

by

cutting

send)

output

most

the accept

internal

text

from respond

signals

indicates

not

in a transmit

or

during

replied.

text

that

it

(11.l)

input

can

that

text

time

held

left by

fitting a iink

CTS

is output. not

used.

front

indicates

The

display.

the

status

of

to

the

as

per

the

pol'arity)

the

"status"

the

AMr-1

responds

(11.3).

The

polarity

LKS.

from

the

applications.

terminal,

text

for

960

character

the

terminal, by there

that

an

A be

this

stopping

the

ARQ

call

positive

accepted,

!bte

even

signal

that

can cannot.

characters

of

• to

the be of

from

is

any is

AMT-1.

left

disconnected.

4,

but

being

temporarily

of

text

data

from

taken

negative,

in a temporary

It

will

be

In

• •

see

released

The

open, this

section

The

open)

left

panel.

which

centre

display,

It

the

each

gives

received

of

the

LED ·is

of

terminal. input

on

in

of

the

AMT-1

or

compu-

trans-

then

the

is a space

AMT-1

mode,

such

volt-

and

that

if

can

in

the

sent

out

busy

on

the

64-

polarity

in

LK6

then

the

case,

CTS

(11.2).

rightof

the com-

an

tones.

unit

described

below:-

9.1

MODE

DISPLAY

ARQ

is

lit

when

the

AMr-1

is

in

AMTOR

9.2

ready

to

conta

is

lit

FEC

signal.

is

receive.

is

lit

DISPLAY

tuning

receive

ct

lit

ARQ FEC

an RTTY

or

CW TUNING

The receive.

left

side

right

side. continuously. flicker

the

rapidly

display.

"two-dot"

exact

centre

show

the

dot

other,

to

either

or

making

if

the

AMI'-1

when

the

in

the

CW

display

A

high-frequency

of

the

display,

In

RTTY

A

signal

between

In

FEC

mode,

where

of

each

as

it

but

only

FEC

an

ARQ

is

AMT-1

mode.

is

turned

receive,

will the

receive,

the

data

traverses

as

or

call.

either

is

in

on

tone

and

a low

the

show

left

the display bit.

from

two

separated

ARQ

receiving

RTTY

only

will

display as a dot

and

display is

Thus

one

standby

calls,

mode,

when give a spot

frequency

right-hand only

the

side

mode

or

if

it

or

transmitting

either

the

AMT-1 tone

will

be

which

side changes gated

on

display

of

the

dots -one

and is

transmit

is

on

the

on

lit

should

of

to

at

will

display

on

is

in

i.~

·

the

the not

each

side.

Page

8

Inter~erence

nal centre contacts illuminate signal, to

tune distant of

signal. mode

9.3

STATUS

ERROR

character This

polarity

although flashes

will

ained to

print receiving, received mEJ<ing a request

will block

remaining

printed.

RQ

will station signal come

the monitored

the

an

ARQ cal

TRAFFIC being being

IDLE

processed.

unit

In

RECEIVE station

OVER

change-over or

when a PHASE

trying during when

ARQ-listen,

STBY unit call.

ESC

In

this The mode command. parameter-setting or

other The

mode. subsequent During a phasing the

try

indicate

itself

ful.

will

show

clearly

of

the

display.

or

in

synchronisation

in

two-dot signals station

The

and

during

periods

DISPLAY

is

lit

in

has a stop

is a useful

is

wrong,

a weak

of

ERROR.

flash

if

it.

both

and

In

errors

the

signal

light

in

ARQ-listen

contains

characters

light

in

requests a repeat

being

at

LED

bad

this

indicates

is

either

he

on

RQ

station

phasing

code

will

be

will

be processed transmitted

will

be

lit

In

is

waiting

mode,

is

not,

will

light

in

closedown

will

light

to

synchronise

either

signals

an

have

the

is lit

only

is

then

waiting

is

lit

when

case,

letter

of

LED, a

When

all

the

lit,

transmission

unit

may

and

or

resynchronise),

which

when

the

distortion

as

spurious

listening

in, is

display

RTTY

In

mode.

even

only

transmitting

will

of

phasing.

mode when bit

mode,

This

when

of

indication

or

the

In

will

FEC

Baud ·

receive,

signal

repeats

the

AMl'-1

ARQ

mode,

ERROR

~""'D

bad

will

and

is

for a repeat.

mode

an

error.

ARQ

in

that

mode,

In

due

{his

error

time).

that

In

the

requesting

is

working

call,

in

or

which

printed.

lit

in

any

through

when

SEND

for

it

for only

sending

in

mode,

means

ARQ

"send"

no

input

the

moment,

in

ARQ

direction

is

about

mode when

the

traffic

this from that

with a distant

ARQ

call,

been

in

four

LED

AMl'OR

to

AMI'-1

will

is

also

lost

has standby

receive

is

mode

PHASE

the typed

ESC

commands

mode

LEDs

will

red

one,

input

is

from

will

operation

may

not

be the

direction

will

resynchronisation

on

the

incoming

dots

ARQ

mode,

either

the

display

with

the

makes

it

sending,

short

change

the that

also

the

wrong

the

rate

show

to

received

polarity.

received

is

the

of a character

has

not

whether

attempted

sending

indicate

that

the

AMl'-1

The

ERROR

if

the

to

his

will

signal

received

case

will

distant

received

also

mode,

being

this block

when

LED

ARQ-listen

repeats

he

is

sending

case

the

mode when

unit -either

mode,

or

is

means

the the

text received.

being

that terminal. distant

sending

contacts

to

is

occur

when a

in

.

the

station

or

during a contact

temporarily.

the

same mode.

an

FEC

in

the

will

interpreted

dUring which also

in terminal

be

accepted.

ARQ

mode

ESCAPE

case

be

any

LEDs be lit

in

lit

the

in

sending a call

SEND

LED

will

re-establish

is

success-

sig-

in

the

during

will

incoming

very

when

the

bursts

continuous

incorrect,

short

ERROR

cont-

or

that

the

is

LED

the

be

have

from

sel-

is

the

text.

progress

AMl'-1

is

In

meaning.

The

or

ARQ

mode.

be

lit.

as

certain

one

lit. send

for

{though

to

easy

LED

·

a

iO

. INTERNAL ADJUSTEMENTS

10.l

RVl

This

sets

the

audio

be

set

the

input

the

time

the

turn-on

transmission

delays

it leaves giving a delay for

RTTY

high-speed

transceiver

this

delay.

RV2

clockwise

is

particularly

of

SOmS.

maximum

and

will

be

sent,

1'0

do

the

oscilloscope

edge

signal

frequency

on set

the

AMl'-1

each

transmitted

the

output

first

until

At

this

the

point

If

this

its

endstop, to

turn

if

ARQ

contacts

assistance.

trial-and-error

of

another

to

monitor

missing

Such

missing

that

small

alteration

at

the

optimum

AND

COIL

need

at

the

factory.

for

demodulator. AMT-1

from

input left

an

in audio

the

feed

into the the

breaking

spot

Be

careful

the

end

RV3

fully

until

folding

urttil

the

Swinging

move

the

such to

delay

in

However, a long

distance

also

so

the

to

The

reaches this point

where

on. may

first

CO

adjusting

ARQ

receiver

AMT-1.

frequency

as

up

position

the back

spot

10.2

10.3

It

should

that

of

RV2

sets

line

and

ment

of evitable ceiver. As position, important but for that

the end

of

Turning ceiver maximum limit

the

be

made,

CW

can

accurately. Arrange

negative-going the

RF

output

ly

at

RF from a point over

relay.

and

set anticlockwise. start

of

start

of

the

output clockwise right.

just

at

full

gain. reaches than

SOmS Scme

modification ceiver

(12)

for

An

alternative

the

help

ask

him

check

for selcal. all)

indicates

the

transceiver. make a arrive

RV3,

RV4

These

presets aligned a

procedure

receiver

With

the

is

on,

(perhaps signal) adjust

far

to

right

or

the

displayed display. hold

on

Now

turn

frequency without turn

RV3

the

display.

should

output

level,

that

the

transceiver.

between

of

the

audio

of

data.

change-over

the

factory,

of

or

cw

25mS. FEC. transmissions and

ARQ

has

fully

will

increase

slow

to

over

limit

it

is

often

this

requires

to

of

or

antenna

trigger

the

PTT

fran

the

via a detector

side

timebase send

an

oscilloscope

burst,

envelope.

full

point

just

the

AMT-1

the

then

therefore

are

transmitter

cannot the

to

point

station,

it

in

the

and

third characters

the

setting

not

adjust

and

start

setting.

not

normally

However,

them.

standby

signal

generator,

tuned

Turn

until

possible

just

into

not

without

noise.

reaches

to

go

rather

anti-clockwise

display

spot

to

the just

the

across

is left

frequency

the

as

audio

the

turn-on

tone

This

allows

circuits

this

This

contacts,

changed

the

change

setting

which

the

maximum

necessary

an

oscilloscope. externally

line

signal.

transmitter,

of

the

speed

to

ARQ

call. Turn should and

Note

the

power

and starts is

turning

be

found

transmitter

be

needed

be

possible.

method

is

to

send

ARQ-listen

characters

{or

of

RV2

d~ing

a new

be

touched,

for

They

such

that

to

an

VR4

fully

the

folding

Then

the

lefthand

too

far,

than

and

farthest

or

breaking

reaches

full

previou·sly

output

level

of

and

the for

within

is

set

setting

or

slow-speed

it

is

to

transmit

delay

over -up

for

an

ARQ

contact speed to

set

Display

either

arrangement

antenna

lOmS

per

RV2

trigger

should

display

point

turn

RV2

to

move

on

first

before is

taking

in

the

See

of

setting

an

ARQ

mode. Ask

in

no

synchronisation

is

too

a

call,

call

in

having reference, form

part

the

tuning

or

variable

internal

clockwise

tu..~ing

display

back

adjust

end

as

the

"go

off

the

adjust

the

to

the

up.

the

right

over

the

display.

described.

matches

the

PTI' commencet he

inthe

trans-

to

mid-

is

not

important

by

if

the

to

a

RV2

will

at

which

RV2

from

the

direct-

and changedivision,

fully

at

the

at

which slowly

to

the

tone

achieves

RV2

more

trans-

section

RV2,

call

and

him

the

printed

short

for

but

order

been

here

of

the

display

tone

calibrator

and

is

to

the

RV4

until

of

the

spot

will end". input

right

'lllen

end

of

whole

range

cw,

the

trans-

can

with

to

at

to

is

as

Now make a connect the side. spot

play. the spot

display.

spots Switch normal

10.4 VCl This

ator at ment

contacts

ing cause, equivalent

To

period-average

TP2

1000.000

preferred

therefore

accuracy

l

0.

5 INTERNAL

Two

ively

polarities

factory transceiver for stations. the

only

then

Th

ity.

satellites, and they

Ll2

interface

and LlO the between operation.

11

COMPUTER

Although with of display keyboard small terminal. of system

U.l

For to no lines RTS are complete between

example,

in

contact,

computer until there the risking

remove

the

shorting

Enter

should

Key

any

should

Adjust

are

symmetrical

the

AMT-l off

operation.

trimmer in

the

factory.

is most

are periodically

operations

then

trimmer

set

VCl, a

and

adjust

micro-seconds.

for

only

is kno

LINKS

internal

allow

to

set

amateur

If

opposite

capable link

the

e same

applies

When

worki ng

Lll

in

opposite

would

both

determines

will connected and

Lll

XCVR

connector.

these

INTERFACING

the

a "dumb"

displaying

and

entry,

computer

the

In

computer into a powerful

the

simPle connection

the

AMl'-1,

connection

and

connected

control

the

if

the

AMI'

- 1 then will

RTS

goes positive

is

now

computer

the

transceiver

link

transmit

between

tone

ESCAPE D from

appear

in

the

characters

key

into

the

coil

about

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The

in

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the

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wn

to

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links,

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the

transmit

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changed. position, will RTTY

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give

the

stations and

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pins

to

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may

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positions,

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the

which

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Switches

lines

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serial

users

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the

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main

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required

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upper

the

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receive

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of

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for

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the

transmitter in lower LlO.

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receive

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rate

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to

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unused

can

ground

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WITH

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used

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simply

on a printer

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will

of

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process

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want function

ASCII

out

the

assumed

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the

wever, if

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compu

two- way

flow

is pos

transmit

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any

further

again,

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buffer

.

long

of

texts it.

part

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the

receive

of

the

terminal,

displayed

to

return

oscil

accurately

this

adjust-

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a

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in

polarity all

TOR

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amateur

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.

terminal

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convenience,

pins on

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data

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ing

power

the

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terminal

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two

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ter, then

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sible.

buffer

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to

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Page

9

is

will

Th

RTTY,

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in

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ARQ-listen,

ARQ

call

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the

It

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the

the station

often

output a character

11.2

11.3

another of the

to

text in Depending

this and fills length whilst then "dummy" there

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character the to a control-E the in

nega control

releasing

STATUS At

terminal the

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Bits LEDs

to

output

RTS

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2

of

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receive

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request

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character

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stop· the

AMT-1.

64

the

will

y,

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RTTY

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no

is is

status

code

computer

the

tive

middle

to

- E

and

CTS

to

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stop

receives

to

CHARACTER

any

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the

status

considered

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as

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bit

2

0 0 0 0 0 0 l 0 0 l 0 1 l l 0 l

Bit 3 is 1 if Bits

4,

is

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5

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the

5 4

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Note

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0 l 1 0 1 l

l l

SEND

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CAPE

4

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computer.

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will

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codes

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text computer

ARQ

since

the

re

i s

held

sent

the

the of

received

the

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will

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byte,

by

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cw

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5

of

the

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some

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buffer

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still

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output

the

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of rec

eived

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buffer

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to

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to

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by

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status of

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character

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then

the

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of

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LED

error

RQ traffic idle

over

phase

STBY

ESC

is

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the

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where

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text

be

in

outputed,

message has

Note

that

64

character

is

full

also

go

text,

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that

to

ent

er a

routines,

is

positi

ve

by

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the

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the

AMI'-l

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- 1

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received

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character

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control

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er

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.

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.

Page

10

Bit 7 of

in outputed to character, AMI'-l case

text. The

purposes. automatically between computer, first empty has ESCAPE then indicates ESCAPE is short is to of speed standby, control-E a print examining present

(standby) In

local than a help. ESCAPE if line The matically text RUBOUT

11.4

some as already For the a command mode. necessary re-assign codes

special-function be

ing

these equivalents, representation.

12

TRANSCEIVER

In

over

is

than

then

for ARQ time

set

transceiver as

the

from

status

to

bit 7 of

the

AMI'-1.

contrast distinguish a status

e.g. _if

whilst

the

status

byte

For

reception

byte

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example,

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test

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C,

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R,

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AMT-l

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received

out

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bits

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return

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computer

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it

wishes

see

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idle

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from AMT-1 to.

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ARQ

bits 4 and S to

when

bits

0,

l, 0 (traffic).

controlled

facility

It

can

as

also

required,

is

can

also that

in

keyboards

CONTROL,

assigned the

ESCAPE

to

exit

In

write

keys

RS232

2,

used

to

most

copy

L

it

is

algorithm

computer

is

character

computer

ESCAPE

example, computer

to

computer

~.

not

detect

wrongly

or

been

to

other

the

keys

programmed

table

shows

for

this

the

instructions,

both

in

control-A control-B control-C control-D control-E control-F control-G

control-X ESCAPE DELETE

CHANGEOVER

ARQ

and

CW

from

essential

SOmS it

RV2

mode

is

RV2,

modes, a reasonably

transmit

.

If

change

not

be

will

your

allow

to will that

correctly.

less

than may to

SOmS

be

shorten

it

possible.

byte

is

any

It

byte

control-E

is

in

will

be

used

if

the

it

station

operation

to

the

transmit

l,

O.

by

the

station

condition

to

RTI'Y

mode.

the

AMT-l

CW

call-sign

after

sending

computer,

usuall~·

be

the

terminal.

can

continuously

detect

for

calls

example,

and

see

l, 0 change

applications,

may

be

more

easily

can

the

newline

or

if

in

the

be

programmed

the

incoming

figureshift,

co=ect

may

or

these

to

other

key

may

from

its

these

cases

routines

to

send

port.

are

In available

function. control and

their

decimal

01 Ol 02 02 03 04 OS 06 07 07

24

27

127

PERFORMANCE

to

receive

transceiver from

receive

possible

the

Even

if

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it

necessary

the

delay

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other

character

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call-sign

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It

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than

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be

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facility

an

automatic

computer

to

received

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tasks.

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computers,

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The

code

ASCII

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names

code

hexadecimal

03 04 OS

PG

18

lB

7F

fast

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AMI'-1

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change-over

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to

This

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the

In

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of

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on

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byte

wait

cut

ESCAPE

speed the

AMTOR

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with

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a

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much

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CW

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The

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maximum

This

travel, for

the

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300

km

distance

is

because and radio

would

ARQ

per

the

and

give

stations.

mS, 2S,SOO km. The distance. range, possible With

just

to

the

Most especially fast ications

The

dealer,

kly

and

it

changeover changeover possible

antipodeal

transceivers

the

break-in

to

first

approach

who

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necessary

In

the

on

the obtain with

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by

the the

transmitter

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PTT

ely

after

of

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tched

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part

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who

same ·

type

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aid

of

signal

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operators

The

pre-amplifier, one

that

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the

trying

station

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full

the

users

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the of

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changeover

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initial

reply

transmit

to

the

gain

transceiver

may

analysis

may

from

the

effects

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AGC

may

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back-EI-F

drop-out in the

the

transceiver.

of

operation

some

The

speed important making when end

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Again, AMTOR A

similar transmitter oscilloscope and

tracing I.Dok coupling, some condition to

suppress slowing a

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radio

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ARQ

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to

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work

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to

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either

modification

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of

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the

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PTT

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lines.

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Experience

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receiver

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the

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the

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distance

radio

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kit

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waves

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contact

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the

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shown

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call

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is

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manufacturer,

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to

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edge

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the

time

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the

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globe

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the

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path

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on

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be

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CONECTIONS the

connections

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15

APPENDIX

Commodore

BBC

ABC

1:

Model

80

MICROCOMPUTER

PROGRAMS

VIC-20

B

APPLICATIONS

1

REM

JICJIC)I(

MTOR 2

REM

~(EYS

•••

REM

3

4

REM

5

REM

6

REM

7

REM REM

8

9

REM

REM:c:uc

10

11

REM

15

REM

PROGRAM

TERMINAL

xx:« THIS

:«

::«

:«

)l(:;()I(

:«::«)!(

)!(:;()!(

x:«:ic

*

)I(

Fl F2 = CTRL F3 F4 = CTRL F5 F6 = CTRL

:C)I( :C:te

F7 = CTRL FB = RUBOUT

:ncx

PROGRAM

XJICJIC)I(

CLEAR

TO

UNIT ••.

PROGRAM ESCAPE

=

CTRL

=

CTRL

=

WRITTEN

SCREEN

20 PRINT·<CLR>"!OPEN 25

REM

X***

30 A = PEEKCZ03) :

CHECK

FOR

IF

ENABLE

USES

VIC-20

THE

c

A

x

D

B

F

<ERASE>

E:Y

D.

J.

,OPEN

2,z,3,cHR$(131)

KEY

DEPRESSION

A =

64

RS232

THEN

Page

16

WITH

RS-232

FUNCTION

INGLEDEW

CHANNEL

+ CHRS(Q)

••

zto

INTERFACE

KEYS

TO

<G8AXZ>

AND

PRODUCE

--...-

r"'1AI

.:)C..

I C:•M\.J...,

Ir"\

TO

THE

RATE

BE

USED

NECESSARY

ETC,

WITH

AMT-1

CONTROL

35

40

50 6 0 70

75 80

85

REM IF

A

IF

A = 55

IF

A

lF

REM GOTO

REM

X::«:tellC

x*llC*

X)l(JICllCllC

39

=

47

=

63

=

190

CHEC~(

THEN THEN THEN

THEN

FUNCTION

CHECK

90 B = PEEKC653) :

:iGO

K

~

i<

+

E;

105

110 120 130

140

150 160 170 180

185 190

:«:uc:te

REM IF

K

I{

~(

~{

I{

~(

K

A:S

=

= = =

=

IF

IF IF

IF

IF IF IF

REM•~••

GET

ALLOCATE

THEN

1

THEN

2

THEN

3

4

THEN THEN

5

6

THEN

7

THEN

8

THEN

IF

NOT

FOR

FUNCTION

K

=

i:

K = 3!

~{

5!

=

K

=

7:

KEY

IF

SHIFT

IF

8 > 1

GOTO

GOTO GOTO GOTO

NOT

90

90 90 90

PRESSED,

KEY THEN

CONTROL

AS = CHRSCZ7>

A$ AS

AS

A$

A$ AS

CHRS<03)

=

CHR$(01)

=

CHR$C24)

=

CHR$(04)

=

CHR$(02)

=

CHr\$(06)

=

CHR$027)

=

A

CONTROL

KEY

WAS

8 = 0

CODES

•

.

CODE

DEPRESSION

GET

CHARACTER

DEPRESSED

TO

FUNCTION

ZS

GOTO

THEN

zoo zoo

•

200 200 200 200

zoo

GET

GOTO GOTO GET GOTO GOTO GOTO GOTO

••

l<EYS

GOTO

200

CHARACTER

FROM

>:>:::·

FROM

KEYBOARD

• •

195

REM

2 0 0

F'

I~:

INT

?05

REM

210

GETt2~8$

215

REM

22

0 PRINT

230

GOTO

*~**

t:2 ; A $ ;

~~**

PRINT

E:

:5;

30

SENU

CHARACTER

GFT

CHARACTER

:REM

GETS

CHARACTER

TO

RS-232

FROM

~HARACTER

ON

VDU

RS-232

FROM

••

PORT

RS-232

PORT

10

REM DRI

20

REM

WITH

30

REM

VERS1DN

4'

3

REM

50

REM

AMT-1

60

REM

STRAP

70

REM

BEWARE.

:312)

DIM

CODE

90

FOR

X=0

100

P1-=CODE

110

STATUS=&FEeJ8

120

RS423=&FEeJ9

130

OSBYTE=~,FFF4

140

OSWRCH=8SFEE

150

C 'ASSEMBLER

150

OPT

X

1

70

•

LOOP

i

812)

LDA

#12l

1

190 BIT

200

210 220

230 2412l 250

250 270 280

290

300

3 10

320

330

340

350

370 380 390 400 410 420 43©

440

450 450

BEQ

LDA

BMI JSR

.9etkeY

LDA

LDX LDY JSR TYA CMP BEQ CMP

BNE

LDA

LDX

LDY

JSR LDX

.CHAR TXA CMP

BNE LDA

.OUT

PHA LDA

STATUS

getkeY

RS423

getkeY

OSWRCH

#8,81 #00 #00 OSBYTE

#&-FF

LOOP

#&1B CHAR #&7E #0

#12l

OSBYTE

#&-1B

#8,8A OUT #8.·A

#&02

470 . lJUT1 480

BIT

STATUS

4'30

BEQ

OUT1

500

PLA

510

STA

RS423

520

JMP

LOOP

530

J

540

REM

END

550

CLS

570

REM

DISA~LE

580 530

S01Zl

=+=FX4,

REM

:+:FX

1

TC=75

8,

1

VER

PROGRAM

BBC

0,

MUST CTS

USE

112)12)

TO

2 STEP 2

\NO \IS

\YES

\...

\IS

\

\RS

OF

ASSEMBLER

CURSOR

baud

Page

FOR

AMT-1

MODEL B COMPUTER

1

OPERATING

BE

SET

TO

RTS

BREAK

ON

TO TO

SYSTEM

75

BBC

EXIT

BAUD

RS423

CODE

\ANYTHING

\BRANCH

\DON'T PRINT

KEY

IT

CLR

REPLACE

IT

RE?LACE

423

RECEIVED?

IF

NOT

PRESSED,

ESC?

ESC

FLAG

BY

"CURSOR

BY

II

LINEFEED

OUTPUT

STATUS

ASCII "ESC"

DOWN"?

ROUTINE

CODE

KEYS

CGET

17

SOCKET

PROGRAM.

BYTE

LOOP

...

II

ASCII)

510 520

S30

REM =+:FX CALL

RC=75

7,

1

CODE

baud

-

10

20

30

40

5123

60

70

80

9123

le0

110

120

130 140 150

150

17123

180

190

200

210

220

230

240

250

260

REM

DRIVER

REM

WITH· BBC

REM

VERSION

REM

AMT-1

REM

STRAP

REM

BEWARE.

REM

.

*FX5, 2

:+cFX?,

>+<FX8,

1

:+:F_X229,1

*FX4, 1

:+cFX3,7

>+<t:'X2,2

X =

INKEY(~)

IF

X =

IF

X =

PRINT

CHR$(

*FX3,4

:+:FX2,1

X =

INKEY(~!)

IF

X =

PRINT

GOTO

CHR$(X)~

150

-1

138

-1

THEN

PROGRAM

FOR

MODEL B COMPUTER

1.0

OPERATING

MUST CTS

THEN

TO

USE

THEN

BE

SET

RTS

BREAK

210

X =

TO

ON

TO

1123

X);

150

AMT-1

SYSTEM

75

BBC

EXIT

Page

18

BAUD RS423

PROGRAM

SOCKET

~o q~~

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:o .

181

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50

70

80

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-

i/TTY"

CW

RECEIVE MOD

IFICATION

FOR

AMT

- 1

Avail~ble

Ame

r ican

PL.EASE

SE.ND

INSTALL

Con

nect

wire

wi

In

under~ide.

as Find

adjace

l e pin

Th

outp

'- t h e m a r k o r s p a c e t o n e f r e q u e n c y . T h i s e n s u r e s: t h

s i gn rep

t o 0v ;

r e

to

add

iti

follows:-

pin nt

ngth

4 of I

is

additional

ut al

l y

wi depends tr

ans

mitted

AMT

-1, polarity uppe

r

should

with

version

II

AT

I 0 N

the

red

the orange

the righ

on,

If

1

to

this

of

insulated

C29,

on

the

is

tun

11

be

for

keying

thi

s

link

on

RTTY and AMT sideband. be

in

th

AMT-1

v:AO o.nd

IN

CONDUCTIVE

wire t h

remove

a

of

and

wire

I C1

to

the main

4,

pin.

hookup

s

oldering

l

ink

centre

ed-

in in zero·· beat correct

polarit

must

On the

e low

er

units

lat

fitted

er

PFIC..k:

ROMs.

A~tN6-

+Sv ; t he

wire to

LK13

pi

TP

n.

board from the

li

nk

i s not

which From

it

ensures

frequ

is

the

wire

, a

t-o

t'his .po·

that

e ncy o f

a

the centre

with the i nconl-i

op

era

ti

on

y

link.

be s e t

OR

sideba

is

USA

so

that correct

obtai

version,

nd

pos

with

black 6 a

nd

fitted

7497. side

nd

route

the

of

th

on

the

ned

ition.

·v;03 an d

I

~

"J'Ol)IZ,

TO

I .

C.5.

the

white

ac

ross

Cut

of

it

int

.

CW

passband, e

passband,

ng

si g

correct

For

European. models

with the-keying

later

UN

IT

HAS

FOR

Ffi?EE

box and

the

board,

the

this

copper

cut,

across

transmit

rather

~

a

nal.

,.-~

This

1_

sett

conventional

the

transceiver

polarity

ROMS,

AN

EAR.L.1£.f(.

eE-

P~G~~f}

inspe

ct

fit

track

solder

the

board

signa~-

than

at

; r · -i

i=l. -C

transmi-tted

feature

i n g

of

-·

k~ying

str

and

the

it

to

is

· an

W

the

in

_ap

ROM

MM'"'

a

'

fF

-.

SETTING

With

to

i s standby, fro

m a display centre

l

eadout wires)

c

en

c r e

an

d

ispla

th

e t

this

T h e d i s p l a y s h o u 1 d t u r n ·

of

the on which gain

pe

rhaps the

OPER To receive

tuni

UP

the

CW

the

leadout

the

ac

AT1

ng

input

or

ca

librat

is

-frequency of ·the

cura

te

y

just

uning 'displa

setting,

centre

there

preset

ON display

board

. g

insta

wires

ain

-1

to

adjustment.

RTTY receive co nd

or

other stable

in

the

centr

pot

until

range

the

o v

on

e-r

setting,

go

es off,

y

just

SO

tune

point.

i

~

that

on

the

Finall l y n the

occasional noise

CW,

Ke y

keys

in

ESC

sym

led,

set the preset

the

fu

lly

With

ition

,

source ,

e

posit

tuning w

hi

tur

i on. Ke y

the CW

display

ch t he

n

th

e g

board

tu

ain preset

then fine-tune

co

mes

on at one

sign

al

either

o-"f

f a t t h e s a

y,

tune

oise

tuning

AP-E C,

pat

pr

esent

display i s

pulse

causing

and

hy

with

tune

potent,iometer

c

lockwise

the

tune

in

ESCAPE

(furthest

comes

po_

sition.

AMT-1 ·in

a c

onstant

so

t~at

C.

away

on.

the

Adjust

Set

n i ·n g di s p 1 a y :i s 1 i t

until

the

centre

point

-

ide

of.thi centre

me

d i s t a n c e o n e i t

the receivei

on

the

band

the

not

in incoming

i1 \

the

displai

the signal

on·ly.

,

the

frequen~-

to

ft

and

uminated, tWith

signal

-.

ne~rest

Thi~

·

the

AMTOR

carrieT

tuning

.

the from; the it

to

the

..

- To

get

tuning

y

until

T<J

check

·

point.

he

r s i de

freq~ency

adjusl

t o

un·fi

the

flicker.

i'.

the

and. then

..

··

"·

u~

1

. -

--

--~

--

-~-------

-

--··

...,.

•'"-

....,.

--.:--

-

t

une

the

of

the displa_

RF

9a

i11

th

e .

dis

nt

re

ce

re

ceiver

. I f

t.

get

pla

y whe n the s

of t he

display

so

that require

t he cleane

ign

when tr1e

t he

dot

d, ad

s t

di

r:;

al

i s off, a

on

just

p1o.

in

co ming s

th

with

nd

e d

the

ispl

ay

r

eceiver

no "noi

onl y a s

igna

l i s

is

in audi o g

se"

ingle

key-do

the

vi s

do t

ible

wn.

cen ain

in

tre

or on

th

e

I f t he

it

enter

k now n ,

out

text

the AMT

ke'ji

sending

int

o

in

g

the

of

the

i s displ

-1 s

ng con

th the n l ea

peed

t r o l -

between words,

it

up

by

1

w.p.m.

C

or

- D

will

di

spla1

i s

mu

a

speed

rlisp

lot

,

d i s

pla,

t~

riginal

To

des

ired

being wait send.

recept

s hows onl y l e

ch t

oo

of h11f

l ay

-h

ows l

th

e n

the

se

t t in9.

se

nd C

W,

characte received unt

i l a

The

i o n

speed

e

AMT

spe v.e the f

receive

of

- 1 be f o

ed i n w

.\

CW

cyed correctly

se

tting

co

D.

ntinu

t

hen

by

I f t

the

keying

e

th

tte

fas

t . ittl

the

Q: s

no co

that

e

AMT- 1

ettin

Key

shown,

or gs, and

ntro

rs and

as

the outgoing message

pause

speed

i n

of

.

the

signa

rehand

ords-per-

MT

-

1.

s

a nd

the

i s t oo

ext

i s

AMT- 1

co

e

speed

rs

[an

ESCA

PE

no

te~t,

spee

d s

l f,

eys

th

e

AM

the

re-eived

transmis

l

is

kn o

wn

using t he ES

minute

el

t o 2 0 1

stat

but

wi

fJ.st displayed speed

ntro1-C

ad

justment

d T,

Q, no

us d isplay th

.

11

• r . m. 0 b s

s pa :

0s

Slow

co

se

tting

. Repeat then

te

the

it rrectly

as

S:

then re-enter the

and

the

ERROR

·.tting

key

need

T-1

in

be

il

i on

i s

a n S:

t )UC l

l

sen

i s

m

ess

is

mu

ch t

1e

d t he typed,

age

always

in

ad

vance,

CA

PE

If

the speed

er

on t he

bet

wee n each l e

down

by with

i s

too

key

ing

required

AMT- 1

sett

ing,

CW

mod

STATUS

oo

slo~1.

figur

e a

d . Si mpl

m.

t

before

th

e

th

S f

v e

unc

th

e pr i n t -

AMT

- 1.

.l

w.p.m. no s paces

s l o

w.

of co

.

speed

and

e.

LED

bout twi

key

I f CW

he

AMT

- 1

s

tar

ti

sa

me as

en

se

t i on ,

is

not

If

tte

r.

by

Speed

ntr

ol -

If

the

se

tting

ke

y

in

If

the

i s on a

1\ga

in,

ce

the

text

is

will

ng t o

the

t

In

slo

tuni Th

key

~dctitio

w

ng

e

spa-e

up aft

do

wn pur

n

t o

the

poses).

bar

er

u~ing

the

Contr

w. p.m . s

K

eyin

is

th

e mos t

the control

ol - ( peed,

g

any

convenie

Jnd

Control - D keys

co

ntro

l - B

ot

her

key wi

nt

k

- B ke y.

ey

puts

11

to

sp

th

e ke y down

rel ease

pre

s s t o br i

eed

th

up

e

ng

and

( f

or

key .

the

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APP'D

GP\N

A.ss £ M

C....w 'R.x

electronics

i!iL.>/

t:>£TAI

UNI\

L

~oe

ltd

USED ASSY:

G.A.

DRG. NO:

GA

JSHT

ON

: AMT L

\GO

oQ

00

1

~

- J

ICS

-.

AMT-1

TERMINAL

AMTOR

Operating

UNIT

Guide

l.C.S.

Electronics

Ltd.

Set

ESC

Up

Codes:

Mode

Function

I

T

B

s

L

N

Q

IDENT

TIMEOUT

BAUD

RATE Followed by 2 digits, to set the

SPEED

LOCAL

NEWLINE

QUERY

Control E entered in

See handbook for details.

any

Followed by 4 letters to make the unit's own selcal code. Followed by 2 digits, to set the

(Power-up value 30 seconds).

(Power-up value 45 bauds). Followed by 2 digits,

(Power-up value 20 words per minute) . Followed by O

(Power-up value - local copy enabled)

Followed by O

(Power-up value - auto newline enabled)

Prints out current values of I, T, B,

mode causes the AMT-1 to output a non-printable status byte.

to

or

1, to turn on

or

1, to turn on

set

AMT

OR

timeout limit.

RTTY

baud rate.

the

CW

speed.

or

off the local copy.

or

off the autonewline function.

S,

Land

N.

-.

I

-

I

Mode Control Codes:

ESC-

A R RTTY Enters RTTY mode in RECEIVE.

Mode

AMT

OR

Remarks

In

STBY, will receive

ARO

or FEC signals.

c

D

DELETE

cw Pressing any text key will send the equivalent morse code,

returning to receive between letters.

DIRECT

Connects FSK from this mode except by switching the power off and on again.

Forces received copy to lettershift.

Function Codes:

I'

CONTROL Function Remarks

'

A Call B

c

D F

ARO

CallFEC

Break-in ORT Listen-ARO

from

ARO

x Clear buffer

modem

direct to the terminal.

(AMTOR, ATTY only)

There

AMTOR MODE

Followed by 4 letters to make a selcal code.

Only operates when in Only operates when To

copy another ARO signal.

To

clear any un-sent input text.

in

ARO ARO

mode. send.

is no escape

Function Codes: (continued)

RTIYMODE

CONTROL

A·

8

c

D Receive

x

Function Remarks

Transmit Transmit

Receive

Clear buffe r To clear any un-sent input

CW MODE

CONTROL Function Remarks

x Clear buffer To clear any un-sent input

DIRECT MODE

Transparent to all contro l, ESC codes.

P 0 Box 2, ARUNDEL, West Sussex BN18

l.C.S. Electronics Limited

(

Telephone

024~

365) 590

text

ONX

, England.

-L

I

--

r

l;.W.

MENU

+ \ W

CLEAR BUFFER

- I w PM

To

9tt

C\lt;

I

II

l

.

..

AIVI I UH

HI

I Y

I

MENU

BREAK-IN

ARO

CALL

+

~ £

LC..A

CLEAR BUFFER

STANDBY I

FEC

XMIT

ARO

LISTEN

LETTERSHIFT LETTERSHIFT

t-

l

I

.

l

MENU

TRANSMIT

CLEAR BUFFER

RECEIVE

I

'

i

I

'

I

I I

TO CHANGE SPEED, SELECT SXX SPEED.

-

Met.~~

MENU,

, WHERE

TYPE

XX

IS

tJP~

of

()

Strlt

P-r

1\.1

c_-=..

I

~

ofh

'P

ovP

f.-O<LJ--t

~

f

...

c-"t>

1"'71

'

<s*1\-'f

I

Tr(

tK

c_1.-f>:1.;

R..

--

'liA

--

~>(

I

II

l

A-ie

!-T l

Ii

t

;

v9

f

l

'

ii

-

1t~~;J

u;~1'72A

S'>

Hco

•

(-\

-

~

...

C

e_

-

I~(

<

rT

L

--::..

~/(

\x-

e...wA

TO CHANGE SELECT BXX,

WHERE

BAUD

12..x

F~<-

1+.~Q.

~

!'J~:;J

ft.

y

~x

r-c;c...

l....f:'(

11

~

'TK

cv

s,

{(

I

ALL

5GLF~

T>(

BAUD

MENU,

RATE.

nf...

....

111

rzv

.

I

RATE,

TYPE

XX

IS

l+~<r

c

'T

X'

c

--.

C)g

Ai

{tx-

K

~

.()

(!,,

/(

-r-

L),

'K

LL-

,

G,{

s

T4

<{TA-tv'j

cS

D

.S7t+1

N

. '

J

J(

o

'

rT

.<(

-

(_(

L

IL

(lcv

~--:::::..

">c

ix

f.-~v

tJ

U VJ'

A

.

Commodore 64 cards to place over the function keys

f

\-(

,;J

~o~-r

' -

1

ICS

= = = = = = = = = = = = = = = = = : = =

11

~ ~

= = = = = = = = = = = = = =

A M T - 1 I C 0 M M 0 D 0 R E 6 4 A P P L I C A T I 0 N S

ICS ELECTRONICS LTD

PO

BOX

2.

ARUNDEL

WEST SUSSEX BN18

ENGLAND Telephone (024 365) 590

ii

ONX

SERIA

L N

UMBER:

SOFTWARE

II ii

I!:

= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =·

PACKAGE

0 P E R A T 0 R M A N U A L.

II

~

No

VEMBER

1983

Th

is

software I.C.S. It may

in

whole

permission All

rights

COPYRIGHT NOTICE

is

the Electronics not

be

Or

from

in

Ltd

copied

part

I.C.S.

without written

reserved.

copyright

.

or

reproduced

of

Page

1

The

program

for

either

If

you have

program

time

clock will

I.C

.S.

if

required

i s a v

50Hz

the

for your

will

exchange the

.

ailable

or

wrong

area,

not

60Hz

keep

in

mains

version

the

t h e program

two versions:

frequency.

of

the

on-screen

correct

cartridge

real

time.

This

V:~

manual

6

onwards.

applies

to

program

revisions

from

Program

author:

Tony

Mountifield

(G4CJO)

AMT-1 APPLICATIONS

1 . INTRODUCTION

The

AMT

- 1

range and pro conjunction

The

Commodore

cable computer

Features display automatic message switchable capability without

applications

of

AMTOR

equipment

vides sophisticated

with

package

to

consists

64,

convert

and

containing

the

offered

with

typeahead while

modes;

buffers (memories)_;

unshift-on in

manu

printer;

PACKAGE

pac

the

AMT

of a plug-in

between RS232

signals

by

the

full hands

-space

al

and

MENU

mode

for

the

kage

is

offered

AMTOR/RTTY/CW

- 1

AMTOR

the

program,

the User

of

program

are:

receiving;

hake control

real

and

word

auto;

tape

for

easy

COMMODORE-64

part

of a complete

by

I.

C.

S. · Electronics

capability

Terminal

cartridge

and

Port

signals

the

AMT-1.

split

manual of

time

clock display;

mod

e; mode select

Unit

.

for

the

an interface

of

the

screen

and

AMT-1;

printer

for

auto

ion.

in

Page

2

This

Co port of

Conn described

and

Re-check

2.

INSTALLATION

IF

YOUR

PARAGRAPH.

If

the

AMT-1 h another and

check

ICJ IC21

LK4, LK5, LK12

LKl,

It

has

been

resistor

input

would

the

enabled

modification

nnect

the

and

the

circuit

ect

the

Insert

the

connect

In

addition,

if

required.

AMT-1

IS

as

computer

the

following:

ins~alled,

installed,

LK6,

closed (for

LK2

in

b- c

round

was

def

ault

state

interface

the

AMT-1

board

transceiver

in the AMT-1

program

up

a

T.V.

a

Tape

all

connections

NEW

AND

been

previously used

at

TTL l

either a 1488 either a 1489

LK7, LK8,

110

position.

necessary

originally

to

the

is

left

must

be

cable

"Terminal"

should

and

manual

cartridge

or (preferably

Unit

and/or a Printer

and

UNU

SED, DISREGARD

evels,

remove

LK9

all

Baud

)

to

remove

included

enabled open. done

even

between

socket. The

be

uppermost.

power

supply

.

into

the

then

switch

THE NEXT

with

the

lid

or

a 7

5188

or a 75189

open

R60

from

so

that

state

if

default

with a new

the Commodore

component

to

the

back

of

) a

vid

eo

may·

on.

VIC-20 of

the

AMT-1.

AMT-1

the monitor be

connected

or

the

AMT

AMT-1.

CTS

to

64 user

side

as

computer

.

-1

3.

PROGRAM

When inserted, the There

is

no

ing

off

T

he

program

be

t yped

at

which

First a status determine not

conn

'

connect RUN

/ STOP - RESTORE

INITIATION

the Commo

dore 64 program

i s

no need

way

to

access the BASIC e

and remov

first

in

without any

point

the sp.

poll

whether

ected,

the

up the AMT-i and

to

ing the

on.

If

the AMT-1 is

in switched on) , the n a SelCal

code

as

with

the

status

in 5.1

line

i s s w

itc

up

cartr

spa

ces,

-sc

reen

the

AMT

i n ESCAPE

hed

automatically.

comm

nvi

idg

callsign, and

display

- 1

starts

giye a RUN

requests your

lit

of

it

is

program will hang

restart

or

by

switching

ESCAPE mode (

prompt

as

will

.2, otherwise

indicating

AMTOR, RTTY

on wit h

and; ind

ronme

nt without switc

e.

terminated

will

is

generated,

mode.

up

at

the

program

the

computer

i t

would

be i

ssued

t he curs

the

eed,

wh

ich sho

appear.

I f

the

this

with

be when

for your

or will

or CW.

cartridge

there

uld

by (RETURN

to

AMT

- 1

point:

off

and

own

appear

Page

3

4.

SCREEN DISPLAY

The

screen display comprises

the

Re ceive

Dis

h-

4.1

pl a

Receiv This consists

) ,

received outgo Text the left

is

one line on a Line

The CLR key

screen

A new l

displ a y

y.

Area, the

ed

Tex

from

ing

text. (See

i s

displayed

end

.

ine

ed

after

t A

of

the

on a Ca

ma y

is

also

Transmit

rea

14

AMT-1,

on

Feed.

be used

started

the

Area

lin

es

and

both incoming

5.1

. B

the

bottom

rriage

to

32nd

column,

three

sections:

and

displays all

also

) .

line, resetting

Return

cle

ar

this

wheneve

to minimi

the

and

r a

Status

text

scro

area

space

text

and echoed

lling

of

the

is

ze

splitting

to

up

of words.

4.2

Transmit This consists

ty

ped

Text

for subsequent

The fl

If process

on,

i

ch

aracters

C

RLF'

U

sing

mitted

Text Area

of 6 lines

on

the

so

ash

cursor

the keybo

displayed

ing

sending

cur

is

sor

not

ard is

or

entered

to

ind

icates

present,

of a special operation (e.g.

MENU

etc.

) .

The

et

transmitted Mod

key

is

no

Delete key

e 7 . 4-) .

causes a CR

way

no

s. (See

the

RETURN

.

There

t y

Word

and displa output

into

the AMT-1.

that text may the program

to

send

from

the

may

the

and

CR

ys

text that

memories

Transmit

ARQ be used

AMT-

LF or

call

to LF

be

is

1,

be separate

i s

.

Buffer

entered.

in

the

initiat

to

delete

including

trans-

-

ly.

Page

4

4 . 3

In

addition,

i

nto

memories

they will

P

ound

sign

t Up

-ar

row

RH

square

It

is

possible

ev

en

prepare a message

t he s i

ze is lines

Status

This

mit single

Clock

The

of

over

2000

are

Display

consists of

Area

and

characters,

.

single characters

Reversed

(i )

text;

This

from

(

ii) This

the It

certain

(

iii) This

o

therwise

if

certain characters

or used directly fr

be

replaced

~y

-

bracket -replaced

to

t y

pe

the Transmit

characters,

displayed.

Line

one

Receive

line

Area.

the

have

- @

means

Normal

AMT

- @

thus reflects

- 1 .

character

the is a graphics

last

status byte

is

mainly for

characters

i s a ' U'

if Unshift-on-Space

it

is

text

as

replaced

entered

at

replaced

entered via

ahead

of

befo_re

beginning Buffer although only

which

It

mode

consists

display and

the

following

the

AMT-1

means

it

character

received

diagnostic

will

become

blank

. (

are

om t he ke y

follows

by y

our Callsign

start-up

by t he cu by

yo u r Sel MEN

U.

the

transmission

for

t y

ping

is

between

will

will.

the

which

f r

purposes,

familiar.

See

7.

2) .

entered

board,

:

.

rrent

cal

to

transmit;

in

t he l

ast

the

of

up

the

Real-Time

meaning not

accept

Busy output

represents

om

the

although

is

enabled,

time

or

advance

six

Trans-

to

five

:

AMT-1.

This is a 'P1 if

ot herw

ise

( V )

This i s a 'W'

i t i s b

lank

.

The mode d either

AMTOR,

The

time

5.

MENU

MODE

MENU

mode

causes

the

course On by

There

pr

abort entry to a menu

indicates 1'--MENU

are

escape

operations,

ogram.

isplay indicates

RTTY,

display

is

AMT-1

shows

entered

to

any on-

this

mode,

listing

--''.

10

operations

The

desired

appropriate letter.

5.1

recognised

AMT-1

5.1.1

in

Operation

(A)

AMTOR

This

the

CBM64

replaced

will

MENU

key

indica

s

causes

to

by

it

lS

if Word

(

See7.4

.

CW,

by be air

these

and

ope

(

The

mode) .

exit

the

Transmit

te

"--AMTOR--".

the

Printer

b l

ank. (See

Mode

the

AUTO,

hours,

using

put

into

activit

the

Transmit

14

operations

which

four

which

rat

ion

CLR

the

AMT

from

i s

7 . 3 ) .

is

enabled, oth

) .

current mode

MENU

or VIEW

minu

tes

the

function

ESC

mode. (This

y)

.

Text

correspond

are

is

selected

key

and

- 1

to

enter

MENU

mode.

Area

and

enabled

.

and

seconds.

key

Area

and

the

directly to

specific

CBM

2-4, 8 are

AMTOR The

the

of

by

status

,

t he s y

fl,

is

status

to t y

mode

menu

erwise

stem,

and

will

replaced

line

AMT

this

ping

also

and

will

line

of

- 1

the

be

Page

5

5.1

. 2 (

I)

This

AMTOR The

SELCAL?", .

will

used

letters, Selcal

will

5 . 1 . J (T)

This

timeout.

"ARQ digits No

the

If add after

5.1.4

(R)

This and The and

5.1.5

(B)

This

to

"BAUD

IDENT

key

is

used

Selcal

is

and

accepted,

correct

and

will

and

replaced

then

hit

be

sent

.

menu

be

to

re-appear

TIMEOUT key

is

use9

The

menu

TIMEOUT (1-99)?",

must

be

other

DEL

only

a l

key one

eading

which

typed,

characters

may digit

zero

the

RTTY key

causes

the

CBM64

will

status

to be

line

menu

the

BAUD

key

is

used.

used

The

be

RATE (1-99)

to

enter

also

four

although

errors.

the

to

enter

is

will

be used

is

before

menu

the

AMT

exit

replaced

will

to

enter

menu

?",

the

defines

by

the

alphabetic

Having

RETURN

the

replaced

and

followed

be

to

typed,

sending

will re-

- 1

to

from

by

show

the

is

replaced

and

entry

station's

the

prompt

the

DEL

key,

AMT

- 1

ARQ

by

then

by

accepted,

correct

the

appear.

enter

MENU

the

"--RTTY--"

RTTY

is

" ! "

"YOUR

characters

key

entered

the

and

rephasing the

one

or

RETURN.

errors.

program

to

RTTY

mode .

Transmit

Baud by as

own

key.

may

four

new the

MENU

prompt

two

although

will

the

AMT-1,

mode

.

rate

the

prompt

for

be

Area

(T) .

5.1.6

5.1

5.1.8

,

5.1.9 (N)

(Cl

CW

This

key

the

CBM64

Th e menu

and

the

status

. 7 (S ) SPEED

This

key

per

Minute. The

"CW

SPEED ( 1-99)

(

B).

(L)

LOCAL

T

his

key

echo

facility

to

the

air.

Receive

The ECHO (l'J/l) by

RETURN. Again correct be

the usually in

AUTO

to

errors,

accepted.

AMT-1,

operated

AUTO

mode.

mode

enable

AUTO

This

key newline a the

CR

facility

and

60th

causes

to

exit

will

is

used

ECHO

is used

menu

?",

the

with local

NEWLINE

is

used

LF

at

column

the

AMT

from

be

replaced

line

will

to

enter

menu

?",

and

to

enable

of

the

Area

as

is

replaced

and

a ~ or l must the

and

only

When

the

menu

will

with

If

the

RESTORE

echo

to

enable

of

the

the fir

on a line.

- 1

to

MENU

by

show ''-

the

is

replaced

entry

AMT-1,

it

is

DEL

key

the

command

re-appear.

local

program

manually.

AMT-1,

st

space

enter

CW

mode,

mode.

the

Transmit

-CW--''

.

CW

speed

in

by

the

t y

for

it

ped, used

prompt

(T l

the

echoes

over "LOCAL

is

or

disable

whereby

transmitted

by

the

may

as

prompt

be

digits ~ and 1 will

has

been

sent

The

e n

may

AMT-1 abled, started

be

the

it

echo

is re-

key, it

or

disable

whereby

transmitted

and

Area,

Words

and

local-

text the

followed to

to

is

except

from

necessary

auto-

inserts

after

5.1.10

5 . 2 CBM-64

5.2.l

5.2.2

5.2.3 (U)

(Ql

QUERY

This

key

c u

rrent

also menu

is

the version remains

the

and The

Operations

(P)

PUT

MEMORIES

This

key

allows

programmabl e

to

cassette

things

as

(

See The menu message,

(Gl

This

(

MEM1-MEM4)

file.

(P )

no

the

STOP

This

ion, incoming

calling

the

message

ing

This in

coming

station

sections

will

and

GET

MEMORIES

key

allows

The

command,

error

messages

case.

key (wi

AUTO

AMTOR

key

ini

which

call,

station, accept a message,

message,

either

the

time

mode

is

FEC

PARAMETERS

used

to

settlngs

request

of

all

number

displayed

the

.

contents

memories (MEM1-MEM4)

for

later

retrieval,

7.1 be

restored

to

be

file

and

If

the

thout

tiates

enables

identify

closedown,

to of only

is

details and

cleared

the

loaded

must have

must

are

file RESTORE ) .

tape

reception.

available

ignored.

etc.

8 ) .

for

when

contents

from a previously saved

been

be

the

generated

is

not

the

automatic

the

s y

stem

the

and

or

to a printer,

the

o f

of

the

of

first

found,

to

callsign

then

in

to

save

created

ARQ-mode;

AMT

- 1

to

above

parameters,

the

AMT-1.

the

user

to

be

allowing

be

prepared.

"PR

ESS RECORD" is

complete.

the memories

using

file

if

this

use

mode

of

acknowledge

of

acknowledge

dump

the

send

saved

such

found

is

the

operat-

the

indicat

not

Page

the

-

an

6

When

this

mode

is

T

ext

Areas

status repeatedly When and such

inter The rest The

le

ast

line

an

ARQ

examined.

as

your own

preted

of

callsign

one

are

polling

letter

alphanumeric

di

scarded

If

with

If close

If

"G3ABC called The

2000 with message After printer

a v

alid

a "QRZ?

the QRZ

the

a v

alid

DE station

calling

characters

+?.

and

that,

as

If

as

callsign

message

contact

callsign

G9XYZ

The

follows:

dumping PLAY MENU The

tape

If

the

-

gram If ing

the

there

mes calling

initiated

cleared,

displays

the

call

is

received,

Anything

callsign

as

the

calling

the

over

is

then

and

character

invalid

11

was

message.

is

down

is

AUTO

is

G9XYZ

station

may

in

length (approx.

program

close

down, sending a CW

the

message

to buttons mode,

will

is

tape

is

sages

must

before

prevented

is

assume

no

will

station

"--

AUTO

AMT-1

before

is

discarded checked one

such

.

not

sent

.

found

HH:MM

) .

then

will

tape

not

printer

,

the Recei

the

AMT-1

--", for

the

and

the

station's

to

number

as

found, the

five

(e .

UTC"

type a message

then

is

dumped

is

required,

be

pressed

hitting

from

on

when

present

appear

will

ve

is

initiated

and

the

status.

incoming

the

word

callsign.

.

~nsure

before

1

/

'

",

and

times,

g.

G3ABC l

is

sent (assuming

) ,

ending

send

an ID

to

either

whilst

the

'U'

moving

'U'

is

dump

is

either,

on

the

be

informed

and

Tran

smit

,

the

program

"DE"

following

it

contains

any

is

program

the

then

text

is

ignored,

non

-

otherwise

replies

program

the

of

up

of

course

begins

"DE"

acknowledgement

to

finish.

tape

or

the

RECORD still

.

MENU

in

mode. the

key

in

entered,

required.

then

screen

only,

that

the

read

at

will

message

the

to

and

pro-

incom

and

is

-

Page

7 ,

To

5.2.4

exit

message

from

(V) V

This

key

dumped

rewound

mode

inhibits

previousl The

menu message, Since

read,

(

186

characters

When

the

will

be

If

the

message

again

If

the

will

ind

s

hould

message,

It

is

the

printer,

intended

N.8. If

which

was

AUTO

mode ,

IEW

TAPE

is

to

tape

while

y ) . will and

the

screen

the

message

screen un-

displayed

menu has

be

ke y

menu

icate

be hit

or

not

possible

for

there

the

searc

the

STOP

not

stored

use

used

to

in

AUTO

still

tape

motion,

be

cleared

the

tape blanks

is

) .

blanks,

in

a l

so

has

been

ed

to

read any

is not d

"- - V

IEW--",

to

read

MENU

keyed

to

since

tape

stations

is

no (further) file hing key

alone (without

point

the

.

the MEN

U ke y (fl) .

examine

in

read

appeared,

reached, and

messages

mode (

the

AUTO

mode, since MENU

as

for

the

should

then

when

the

one

the

Receive

mentioned

block

then

subsequent

isplayed,

the

dump

to

AUTO

and

from

the the

block

from VIEW

tape

mode

without a printer.

must

be

terminated

menu

will

re-appear

which

tape

were

should

' "PRESS PLAY"

be

started.

tape

is

being

at a time

just

the

read

Area.

end

Text

'V' mus t

message status RETURN

of

line

key

the

mode.

on

to

is

primaril

on

the

tape,

by usi

RESTORE ) ,

.

6.

FUNCTION

The

modes to

etc. They as

be

Some program. should

of

.

y

ng

at

KEYS

function keys

control

correspond

follows:

fl

ESC

fJ

control

f5

control-D

f7

control

of

the keys have

Each

be

made

fl:

This program

f2:

In

!\MTOR other In

CW by

one

fJ:

In

!\MTOR in

ARQ. four In

RTTY

f4:

In

all buffer, AND

The

Transmit

f5:

In

AMTOR mode . in

progress,

all

text

- A

- F

will to

key

into

stations mode,

w.p

letters.

mode

modes

If

are

used

initiation

directly

f2 f4 f6 f8

additional

be

described

the

keyboard overlays

puts

the

MENU

mode

this

transmission

this

. m. (

Not

mode

this

The

outgoing

this

the

Transmit

Text

mode

this

an

FEC the

in

the

buffer

within

of

calls,

to AhT-1

control control

control

DEL (lettershift

!\MT-1

into

mode .

key

is

key

is used

in

!\MT

key

is

Selcal

key

just

key

clears

Area

i s

key

causes a return transmission return

to

has

!\MTOR,

- C

- X

- B

functions in

turn,

ESC

used

(A

to

- 1

V:~l)

used

must

switches

the

buffer

also

standby been

return

mode,

to

RQ

only)

increase

to

!\MT

in

cleared.

or

an

sent.

RTTY

control

code).

withing

and

supplied

break

.

initiate then

to

- 1

the

ARQ

is

and

to

standby,

code

reference

.

and

into

.

the

be

transmit

internal

CBM-64.

to

standb

contact

delayed

cw

the

a

typed

s

the

speed

call

as

.

y

is

until

f5: (Continued

In

RTTY

again

being

sent.

In

CW

mode

by one

f6:

This key

in

AMTOR

mode

to

turned

f7:

This

key

AMTOR

mode

phasing

synchronization

f8:

This key be

set

shift

code

in

7.

2) .

)

mode

this

key

delayed until

this

key

only.

to

by

to

is in

initiate

keying

enter

w.p.m. (not

is

used

mode

provide a tune-up

off

again

is

used

only. It

in

listen

mode,

causes

the

to

Letter

shift

shift,

received. !But

switches

used

AMT-1

It

may

is

also

in the

until

to

all

text

to

reduce

V:~l).

an

FEC

also

signal,

~PACE

ARQ

listen

used

event

of

incoming

the next valid

see

the

receive,

has

transmission

be

used

which

or

RETURN.

mode

to

re-start

of

USOS

been

the

text

speed

in

is

in

false

to

facility

cw

Page

8

7 .

CBM

These

the

Commodore

are,

K

eys All and 7 work

7.1

CBM-1 This

memories

memory,

Text may The

but the

Wh

en

again

7

.2

CBM-2 This

switched

line.

sent received. This LISTEN, may be wrongly

matic version

(C= )

keys

program,

in

fact,

1 - 4

work

Write

key

and

'£', will message

the

to

Unshif

key

When USOS

to

the

if

cor

on

KEYS

operate

and

are

key,

and

the

second

and

7 - 8

in

AMTOR,

in

MENU

Memory

is

used

the

to

keyboard.

from

expects a nurnl?

then

be

•+•

be

typed

and

' ) ' interpreted is later

complete

return

message has

to

t-on-Space

causes

the

on

or arr,

is

AMT

- 1

every

feature

reception

rupted,

and

FIGS

shift.

of

the 'f8' function

various

activated

ancillary

by

typing a digit

set

defined.

and

CW

of

mode,

are

RTTY

mode.

1 - 4

load

one

of The

er

from 1 to

in

up

will

to a maximum

appear

as callsign,

recalled

for

been

normal

mode.

(USOS)

unshift

-on-space

as

indicated

enabled, a "force

time

a SPACE, a

i s u

sef

bad

ul

and

is

prevents large

In

effect,

functions holding from

1 -

colour

codes).

and

the

user-programmable

display

4 .

literally

time

transmission.

entered,

feature

by

the 1U1 on

to

CR

in

RTTY

incoming

blocks

t h

is

mode

key

.

down

8. (These

all

except

will

ask

of

256

in

this

and

Selcal

use

to

LTRS"

or

a LF

mode

LTRS

shift

being

is

within

the

which

characters.

CBM-1

be

the

code

and

received

an

mod

when

status

is

is ARQ

codes

auto-

e,

Page

9

7.3

CBM-3 This

as

indicated

If

there powered printer With Receive

is

also

With a

CR whole computer printed,

flashing

In

this

printing

7 . 4 CBM-4

This

indicated

wordrnode disab

Buffer is

not

With

including

This

corrected usi until It

is

in

ARQ, and

so

as

RETURN

In

AMTOR

Printer

key

turns

is up, output

the

printer Text

sent

most or

LF

line

in

which

and

case, care

while

Word

key

turns

will busy

word

allows

terminated therefore

not

soon

and

On/Off

by no the

Area

to

printers,

is

received,

is

printed.

the

mode

by

the

led,

be

r .

mode

the

last

the

ng

always

to

lose the

becomes

RTTY, it

tne

printer

the 'P'

printer

program

can

not

on,

all

in

AMTOR, RTTY

the

printer,

the

busy

state

means

that

keyboard

needs

typing-in

On/Off

the

word

'W'

on

any

sent

to

enabled,

SPACE

current

the

DEL

with

SPACE

nece

ssary to

before

a natural

output

on

the

connected,

detects

be

enabled.

text disp

on

line

is

at

which

Some

printers

while a line

the

cursor

is

not

to

be

text

for

mode

on

the

status

text

in

the

AMT

- 1 (

only

text

or

RETURN

word

being

ke y ;

it

or

use

STANDBY

last

word

habit!

is a matter

on

or

status

or

it

this

and

layed

or

CW

device

stored

point

stops

recognised.

exercised

transmission.

or

off,

line.

the

Transmit

provided

up

to is typed

is not

RETURN

.

RETURN

or

RECEIVE,

(PLUS-QUERY -

} .

of

personal

off,

line.

is

in

modes

#4.

up the

hold

is

as

and

sent.

sent

after

not

the

until

being

if

With

to

the

it

be

preference recommended ensures since

N.B.

7.5

CBM-5 This

7.6

CBM

- 6

This

7. 7 CBM

- 7

This

form RTTY RTTY

transmission

program

until

CW

ID.

+'

7 . 8

CBM

- 8

This cursor

A numb

to the

whether

that

correct

the

text

is

In

RTTY

to

is

pressed -they

a SPACE

is

reserved

is

reserved

CW

Identification

causes

G9XYZ".

and

appropriate.

or

or expect key

when

key

"DE modes, as

sends a STANDBY

the

AMT

- 1

Hence

it

Set

Clock

key

activates

will

flash

er

must

then

to

use mode

-letter

word

ALWAYS

word.

inter

sent a whole

CW

with

word-mode

hear a character

will

or

RETURN

for

future

for

future

the

CW

Identification

It

is

over

~TTY

not

the

be

only

the

AMT

If

an

transmission

or

RECEIVE

sending

necessary

clock-setting

the

tens

typed, and

resets

an

stops

mode .

spacing

word

is

typed.

enhancement.

effective

- 1

ARQ

contact,

before

of

In

be

enabled -this

within words

at a time.

enabled,

sent

each

be

sent

to

in

back

to

is

in

request,

activating

to

also

procedure.

hou

rs

the

cursor

CW

it

is

do

not

time

a

as a group

be

sent

AMTOR

and

AMTOR

and

an

FEC

progress

and

waits

the

hit

"f5".

digit

s.

will

,

in

the

Th

e

advance

This

is

started

For

correct

the

message

to UTC (the.

CONTROL KEYS

s.

The

control pre-progranuned memories and -

Of

the

by

the

The other

alterable.

MEMS:

ME:

MEM7: MEMS: MEM9: "THE QUICK

ME

M~:

All these memories

Thi

s w

CRLF , t o

Also note the u

to pro

repeated

inunediately the

operation

in same

keys 1 to ~ are

load

10

memories,

user. (See

six

are

Their

"CQ

CQ

~6:

"SELCAL: I I l "

"PSE

"RYRYRYRYRYRY

"TIME

as

chosen, rather

provide

v i de uni v

for

each

with

CTRL-~,

or

the

as

G.M.T.).

user-progranuned them

MEMl

5.

2.

l, pre-progranuned contents

CQ CQ CQ

K"

BROWN

IS

t UTC"

are

com

pat

1

se

of

£

ersalit

y .

digit,

last

AUTO

time

used

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to

the

is and

be

retrieve

clock typed.

message

into

the

to

5.

DE

. .

.... RY"

~ransmit

MEM4

2. 2 and

are

as

E E"

FOX ... .

are

and

progranunable

7.

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follows

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Buffer

not

terminated with a CRL

than commencing wit

ibility

1

,

' J' a

wi

nd

t h W

1f1

ord

ch

aracters,

Mode .

with set

h

F.

Page

.

10

.

an

example,

As the

following keys

or

CW

:

RETURN

CTRL-S

to

generate

would

(

good RTTY_onlyl

(

the

be

used, in

practice

text

)

of.a

AMTOR,

CQ

call RTTY

,

CTRL-5 CTRL

-5

CTRL-5

(

AMTOR

CTRL-6

only)

CTRL- 7

N

ote

that

in

AMTOR,

CQ

calls

should

be

made

in

(

mode-Bl

in

standby

and

Selcal.

ARQ

with

(i ) A

identify you -the who

(iil

In order

usually

that you

in

(iii )

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The

best met

to ide

ntify your

stati

on

a l

either

to

so

N

ote

in

rather

than

to

copy the

There

the s elcal

replying

is

sendi

to

have to·

are

place of· h

ronization

rephasing,

by

a d

iffere

hod

is

call you

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sending RY's

ARQ

or

are

CQCQ.

station

ng

repl

calling is

to

Selcal,

in

FEC,

in

them.

nt

call

only

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y ,

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own

ARQ

This allows all

and

who adv

This

has

to

Selcal

the

distant

you

CQCQ, and

Selcal

is

lost

the

CQCQ

station li

in

FEC,

and

then

(o r FEC

(MEMS )

in

RTTY.

identify

ocate

several drawbacks

respond

blocks

station

in

Listen

then

to

respond.

and

the

Selcal might

stening

as

above, using

to

wait

if

he d

is

of

your

calling

in

do

master

for esires

no

FEC

stations

callsign

order

not

identif

will

Mode

program

be

for

CQ

another

advantage

in

to

station

picked calls.

) .

:

to

y

know

CQCQ

MEM6

9.

TROUBLESHOOTING

If

you properly, check:

(i )

(ii)

have

problems

here

If

characters line , or to

displ

busy

output

not

functioning.

Check

the faulty ally

possible

being

used face.

If

characters

'

incorrectly

check

that

to

transmitter

perfect

the

CBM-64

Check

the

Check

is a list

two

ay

the

from

CTS

connection.

rather

R60

by

there is-

there

input

voltage

getting

are presses

menu,

input

if a TTL-level

was

appear

the

RF.

is

connector (pin 1 is

nominally SV.

4. 75V., ask

your

supply voltage

(Low

edge

detector

the 64' s

dealer

within

If

to

the

of

possible

lost

while

of

it

the

64

to

the

This

than

the

removed

to

be

CBM-64

not

excessive

If

the

likely

to

port.

on

pin 3 of

ground) . It

it

is

power

unit

replace it.

affects

the

system

points

printing

MENU

are

is

likely

the

AMT

- 1

would

interface

ICS

as

received

from

local

be a problem

less

than

is a bit

the

CBM-64

to

required that

AMT

- 1

for

be

especi

RS232

in

the

proximity

echo

the

should

about

start-bit

) .

work

to

a

the

is

a

were

inter-

section

AMT-1,

is

User

low

Page

-

with

Port be

not

-

~I

11

(

iii) If

iv)

(

2.

the

AMT-1

poll

while

will

be indicate that

time. The

most connection, If

the

condition

inform

If

the

noi

s e or

RUN

/ STOP

will

restart

This

should

error

message

in

displayed.

what

likely

or

I.C.S.,

program

RF

interference,

key

also

fails

AUTO

operation

cause

the

happens

giving

should

and

hit

the

program be

described

to

respond

mode,

The

is a faulty

AMT

- 1

details

hang

the

done

an

error error was

taking

has

lost

repeatedly,

.

due

hold

RESTORE

.

in

the

above.

to a status

message

number

will

place

AMT-1 power.

please

to

mains-borne

down

the

key,

event

at

which

of

an

ICS AMT-1 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual