Galaxy FM-210 (By World Radio Laboratories) User manual

GALAXY

FM-210

INSTRUCTION MANUAL

<t>

^^^^

"Pocesetfer

GAiAxr

in

AmateurlQorr\merc\o\ Design

10 South

34th

Street

fi£crJiomcs

•

Council Bluffs,

Iowa

51501

GAL

AX Y

FM-210

100669)

Manual

Price $ 1.50

183-90

galaxy electronics

The new Galaxy FM-210 is a top quality 2 Meter FM transceiver designed to offer no compromise performance for

direct transceiver maintains the ance Galaxy Electronics. Backed by a best to Electronics, "THE PACESETTER IN

or

repeater

and rugged

service

policy

the growing

communications. This

same

reliability

ever,

list

of communications equipment by Galaxy

that has

we are proud to add the FM-210

high standard of perform-

become

full

year warranty and the

fully

solid

a trademark at

AMATEUR

DESIGN.

state

"

CONTENTS

SECTION

1 -

UNPACKING

1.

1 Removing From Carton

1.

2 Warranty Registration

1.

3 Shipping Carton

1.4 Re-Assembly

2 -

INSTALLATION

2. 1 General

2.2 Antenna

2.3 Microphone

2.4 Power

2.5 Location

2. 6 Control Functions

2.7 Rear Panel Jacks

3 -

OPERATION

3.1 General

3. 2 Ground Connection

3. 3 Receiver Operation

3.4 Transmitter Operation

3. 5

Crystal

1

2

8

Ordering Information

SECTION

FIGURE

4 -

THEORY

4. 1 General

4. 2 General

5 -

TEST

5. 1 General

5. 2 Receiver Alignment

5.3 Transmitter Alignment

6 -

PARTS

7 -

SERVICE INFORMATION

8 -

WARRANTY

NUMBER

1 Microphone Connection 3 2 Power Plug Connection 4 3

Fixed Station Cable Connections 4 4 Front View of the FM-210 6 5

Rear View of the FM-210 7 6 Audio Test Fixture 28 7 FM-210 Block Diagram 29

8

Bottom 9 Top View of FM-210 31 10 Transistor 11 FM-210 Schematic Inside Back Cover

OF

OPERATION

Circuit Circuit

AND

...

' ^0^.

DESCRIPTION PAGE

ALIGNMENT--

LIST

--16

- —— 27

LIST

OF

ILLUSTRATIONS

View of FM-210 30

Lead

10

Analysis for Transmitting Analysis for Receiving

11

26

Orientation 32

NUMBERS

1.

1 Removing

From

SECTION

UNPACKING

Carton:

I

Carefully Examine 4 screws on the out of the cabinet. Remove all hold-down tape and check to insure their

Should DELIVERING the

full

1.2

"Warranty

Fill

out the enclosed

mail

1.3 Shipping

Save need it at a later date for shipment or storage of the transceiver.

1.4 Re-Assembly:

remove the

it closely for signs of shipping damage. Remove the

bottom

that all transistors and crystals are properly seated in

sockets. Inspect closely for any signs of internal damage.

any shipping damage be apparent --

CARRIER IMMEDIATELY

extent

it

TODAY

Carton:

the packing material and the shipping carton. You may

of the damage and file a claim

Registration:

to insure that your warranty

Galaxy

of the cabinet and slide the transceiver

WARRANTY

FM-210 from the packing carton.

NOTIFY

! State to the

IMMEDIATELY

REGISTRATION CARD

will

THE

carrier

and

be on file.

!

After

you are satisfied that no damage has resulted from shipment,

and

have removed all tape and insured that all crystals and transistors

are

properly seated in their sockets, replace the cabinet.

T

I T

TR

8x

-

1

. - 'h It • «i

pniqari'*

2. 1

General:

Do not attempt to operate your FM-210 or make any connections until

you have read this entire section carefully and understand

its content.

2.2 Antenna:

The

FM-210 is designed to work with any of the common antenna systems for use on the 2 Meter amateur band with a nominal impedance of unbalanced 50 ohms resistive. Any antenna system should be adjusted so that SWR is kept to a minimum, preferably less

than 2:1. The antenna connection provided on the of the FM-210 is an SO-239. To connect your antenna transmission line,

you

will

SECTION

INSTALLATION

need to provide a

II

PL-259

connector.

rear

panel

NOTE:

In useless items are on the air. A few moments here to make sure that you have a grade of

a

great deal of difference in the performance of your new

2.3

Microphone:

The

wideband, flat frequency response microphone. Microphones with limited low or high frequency response with peaks in the voice

range, commonly used for SSB communications

factorily,

shaping is accomplished in the FM-210 and is not required in the

microphone.

The output of the FM-210 is Unbalanced. If the

'SfttT

antenna, a matching device, such as a

VHF operation, remember that the most efficient transmitter is

without a

RG-8/U

best

performance from your FM-210

transceiver

Coil,

should be used. If your balanced antenna

is

Gamma

not be required.

often

but at somewhat

overlooked by the amateur who is in a

is to be operated into a balanced

or Beta matched the

good

coax cable and a

antenna and transmission line. These two

less

than maximum performance. Audio

good

Balun

antenna installation

will

result when using a

Coil

Balun

will

work satis-

hurry

will

FM-210.

to get

good

make

2

The

microphone

A

three

conductor

input is a

(3-circuit)

HIGH

the jack provided on the front

such

as Switchcrafts

plug and

microphone

S-260

are

connected

or

below --

IMPEDANCE input.

microphone

panel

of the FM-210. A plug

equivalent

plug is required for

should be

as shown in the illustration

used.

The

Swifchcraft

S-260 or

It

is with means

equivalent

MICROPHONE CONNECTION

FIGURE 1

NOTE '

necessary

the FM-210 as

to switch into transmit

to utilize a PTT

there

is no

mode.

microphone

alternate

2.4 Power:

The main power Jones the 12 VDC power cord supplied part of the AC-2 10 Power Booster. The power plug pins are

WARNING:

source

will

type

Jack

S-308

on the

rear

of the FM-210 requires a Cinch-

CCT connector. This connector is included

with

FIGURE

the FM-210 and is

2

also

with

a

Double-check your power cable. Incorrect polarity of the power

cause

permanent

damage

to the FM-210.

2.5 Location: < Ua

The location of the FM-210,

fixed

or mobile is not

critical.

Due to transistor limitations, however, the FM-210 has an operating

range

2.

5. 1 Fixed installation -- the Galaxy Model AC-2 10 Power Booster is

of 32-140

required for

degrees

fixed

Fahrenheit.

station operation. Figure 3 shows the proper

connections between the FM-2 10, AC-210, Antenna, and Ground.

Aceio

POWER

SUPPLY

<Y"

FIXED

STATION

CABLE

CONNECTIONS

FIGURE

4

3

2.5.2 Mobile Installation The FM-210 as supplied with the power cable is ready for mobile operation. The FM-210 can be installed in any vehicle having a electrical

system. An optional mounting bracket (MMB-210)

NEGATIVE

ground 12 VDC/

is available to mount the FM-210 unaer the dash.

2.5.3 Mobile antenna installation -

manner

recommended by the antenna manufacturer and connect

the coax transmission line to the FM-210 with a

Install

a mobile antenna in the

PL-259

connector. Mobile antenna installation is another item that is

often

on this subject -- your time

overlooked.

Read

some

will

of the many

good

be well spent and

books available

will

be re-

flected in your mobile enjoyment.

2.5.4 Ignition noise -- In most mobile installations, ignition noise becomes tion is not an automatic

a problem.

Contrary

cure-all

to popular opinion, FM opera-

for ignition noise. Analization of ignition noise indicates an FM component that can appear as annoying interference in mobile FM operation. When troubled

with

ignition noise, it is recommended that you install resistor

type

spark

in

the center tower of the distributor cap. In addition, a

ohm suppressor resistor is

plugs and insert a 10, 000 ohm suppressor resistor

5000

suggested

for each

spark

plug tower on the distributor cap. A coaxial capacitor at the ignition coil primary,

another

mounted as

MUST.

If noise is

close

to the coil terminal as possible is

still

present, again we

suggest

that

you consult the many articles and books written on the subject.

There

kits

are also several

available.

good

commercial noise suppression

5

FIGURE 4 o = ,..ju^a

2.6 Control Functions: >:>i:"?!' w k!

J-~. 0 ^0

1

-- SQUELCH CONTROL This control is located behind the used

to set the level of the

squelch

AUDIO

Gain control and is

threshold.

2 -- ON-OFF SWITCH

When the

AUDIO

Gain control knob is in the maximum

AUDIO

GAIN

CONTROL

counter-

clockwise position, the power to the FM-210 is turned OFF.

Advancing the control clockwise

the power is ON, the control

3 -- MIC (Input

The microphone jack

Switchcraft

the

sleeve

or barrel is GROUND. (See Fig. 1)

4 -- RECEIVE Crystal

A

three

crystals

position

that

Jack)

S-260.

selector

will

determine

requires

The tip is PTT, the ring is

Selector

switch

turns

governs

the power ON.

the

audio

output (volume).

a small 3-circuit plug

AUDIO

Switch

that

the

receiver

selects

one of

frequency.

Once

such

and

three

as

5 -- Indicator Light

A

pilot light

6 -- TRANSMIT Crystal

A

three

crystals

that

position

that

will

activate

Selector

selector

determine

whenever

Switch

switch

that

the transmitter

the FM-210 is ON.

selects

one of

three

frequency.

6

REAR

VIEW

OF THE FM-210

2.7

FIGURE

Rear

Panel

1

-- Antenna -- An SO-239 connector

input.

2 -- Power -S-3 08 CCT mating connector. This connector is included the 12 VDC power cord supplied

part of the AC-2 10 Power Booster.

3 -- GROUND LUG -- Grounding connection for external ground. Should

for

fixed

tions .

4 -- FUSE -- The fuse is in

protects both the FM-210 and the AC-210 , when

3 amp fuse

Jacks:

It requires a PL-259 plug on your

Main

be connected to cold-water pipe or good outside ground

station use, or to the body

FAST-BLOW

will

not provide the

power connector requiring a Cinch-Jones

series

(type 3 AGO) fuse. Any other type or value

necessary

5

which

with

the FM-210 and is

chassis

with

transistor protection.

is the 50 ohm

antenna

for mobile installa-

the ON-OFF switch and

coax feed

used.

also

Use

antenna

line.

with

a

ONLY

7

3, 1 General:

SECTION

OPERATION

III

Before Proceeding the transceiver has Section

WARNING:

3.2

Ground

A

grounding lug is provided on the

in

Figure 5. It is mandatory that a

provided tion. The ground lug should be attached to a cold water pipe or

good mobile operation.

3.3 Receiver Operation:

The proper receiver that frequency. To operate the FM-210 receiver, first set the > RECEIVE control clockwise until unsquelched just rotate the disappears. control. the sensitivity of the receiver whereby weak signals heard.

returned

and

refer

III,

whether it be for fixed station or mobile operation.

Incorrect polarity of the power source

permanent damage to the

Connection:

for optimum performance in both mobile and fixed opera-

earth ground in fixed operation and to the vehicle chassis in

FM-210,

crystal

to maximum clockwise and

the

AUDIO

Further

For maximum sensitivity, the

align the FM-210 receiver for operation on additional frequencies,

to paragraph 3. 5 and Section IV.

as shipped from the

has

been

selector switch to channel #1;

SQUELCH

This

"off" (maximum clockwise).

with

operation of your

been

in position =1 for operation on 146. 940 MHZ. The

pre-tuned to accept wideband FM signals at

control for a comfortable listening level and

is the

adjustment of the

properly installed in accordance with

rear

good

Galaxy

turn

noise

control counter-clockwise until the

most

is heard in the speaker. Ad-

sensitive

SQUELCH

FM-210,

FM-210.

of the FM-210 as shown

ground connection is

factory, includes the

turn

the

AUDIO

setting

SQUELCH

Note:

To order crystals

be sure that

will

cause

the

SQUELCH

control

noise

of the

control

SQUELCH

will

reduce

will

not be

control may be

just

3.4 Transmitter Operation:

The

FM-210 as shipped from the

crystal

has

into

than For

alignment outlined in paragraph 5. 3. 6.

of the FM-210 case to permit easy access to the proper controls.

in position #1 for operation on 146. 940 MHZ. The transmitter

been

optimum matching to the antenna, perform the Power Amplifier

pre-tuned to transmit wideband FM signals at that frequency

a 50 ohm

a 50 ohm resistive load should be avoided.

NGN-REACTIVE

Galaxy

load. Any antenna presenting other

8

factory, includes the proper

There

are

holes

in the

bottom

To switch to channel #1 and key the transmitter with a PTT micro-

phone

3.5

Crystal

operate

the FM-2 10 transmitter, set the

.

Ordering Information:

TRANSMIT

selector

Proper

crystals to permit operation of the FM-210 on additional

frequencies may be obtained from the following sources. - ^

Sentry Manufacturing M Crystal Chickasha,

Park

East

Oklahoma Yankton, South Dakota

TRON

Highway 50

73018 57078

Specify Galaxy

(Receiver

Crystals)

CAUTION:

Part

Number

117-39

(Transmit

Crystals)

along with the desired operating frequency.

Do not specify exact crystal frequency to

suppliers as

they

will

automatically use the

or

these

117-40

appropriate conversion formula for the FM-210.

When ordering crystals from suppliers other than Sentry or

M-TRON,

the following additional specifications must be included:

RECEIVE

Desired

Crystal:

Crystal

= Operating Frequency - 10.7 MHZ + 5 KHZ

3

HC

- 6 Holder Type

+

.002% Temperature Tolerance from 0° - 40° Centigrade

+

. 002% Grinding Tolerance @ 25° Centigrade

3rd

Overtone - Series Resonant •.: • ,

.

TRANSMIT

Desired

Crystal:

Crystal

= Operating Frequency + 1.3 KHZ |j 0

8

.

. • . • '417 ^ ; '

HC-6

Holder Type t

+

. 005% Temperature Tolerance from 0° - 40o Centigrade >

+

. 005% Grinding Tolerance @

Fundamental - Parallel Resonant calibrated

250

Centigrade ... i-ti.

into

a 32 p£ load

9

SECTION

IV

4.1

General

Refer The Q401 and Q402 configured to form a high gain amplifier used to drive from characteristics. distortion is produced. Q4 04 and Q405, part of an NETWORK, FILTER characteristics ness then applied to the of the crystal acts as the first frequency doubler. The signal is then presented to the second frequency doubler Q407 which frequency doubler. The signal, now at operating frequency, is fed to Q2, the amplifier driver feeds antenna relay to the antenna.

THEORY

Circuit

to the block diagram (Figure 7) and the schematic diagram.

voice signal from the microphone is passed to transistors

Q403. Q403 clips the extreme positive and negative peaks

the voice signal, thereby enhancing the average modulation

NETWORK

of the voice characteristics. The "shaped audio" signal is

crystal

frequency in direct response to the wave form. Q406 also

the output networks which couple the RF power through the

Analysis for Transmitting:

When clipping,

suppress

by 6 db per octave to further enhance the effective-

oscillator Q4 06 is accomplished by varying the

these

also tilts" the transmitter audio response

Varicap

OF

OPERATION

some

higher order products.

Modulator where frequency modulation

stage

for Q3. Q3, the power amplifier

undesireable harmonic

feeds

ACTIVE

This

Ql, the

FILTER

ACTIVE

third

4.2

General

Again,

diagram. relay Transistor stage, harmonic three" multiplier Q104. The mixed signal is then fed to the IF networks allow the difference mixed signal at 10. 7 MHZ to pass into the Second Mixer Oscillator This for optimum FM reception. The signal is then fed to Intermediate

Amplifiers

produce limiting in the next two signal is then presented to the fixed tuned discriminator the signal is converted to audio. The audio signal is then routed to the First signal then passes to the Squelch Gate Q306. Providing the signal presented to the Squelch Rectifiers D201 and D202, is strong enough to Driver drive

Circuit

refer to the block diagram (Figure 7) and the schematic

The incoming signal is switched through the antenna

and coupled to the RF Amplifier

(FET).

Q102, another

of the

Amplifier Q201 and its associated selective networks. These selective

Q2 03 output to produce a difference mixed signal at 450

450 KHZ signal is then fed into a 4

Q204 and Q2 05 which amplify the signal sufficiently to

and Second Audio Amplifiers, Q3 01 and Q302 respectively. The

"turn

off" the Squelch Gate Q306, the signal is passed to the Audio

Q303 and on to the Audio Output

the speaker.

Analysis for Receiving: 0 : "

stage

The amplified signal is now fed to

First

stage

FET.

Oscillator Q103, as delivered by the "times

Here the signal is mixed with the

Q2 02 where the signal is mixed with the Second

stage

Q206 and Q2 07. The limited

QlOl, a Field

pole

Chebishev filter adjusted

stages

Q304 and Q305 which

Effect

First

TF201,

Mixer

third

Rrst

KHZ.

where

10

TEST

AND

5. 1

General:

For

this alignment, it is assumed that the FM-210 transceiver is in

good

electrical condition and that alignment is necessary due to

component

minus 1 MHZ from factory aligned frequencies.

5.1.1 Test Equipment Required:

replacement or frequency changes greater than plus or

SECTION

ALIGNMENT

V

Vacuum

1.

5.

50 ohm Non-Reactive Dummy

MHZ

Accurate

modulation req'd)

4.

Tuning

5.

Tuning

6.

Tuning

7.

Frequency output frequency. NOTE:

<F

crystal

8.

Deviation Meter capable of measuring 15 KHZ deviation. Audio

9. volts

5. 2 Receiver Alignment:

5.2.1 450 KHZ

Tube Voltmeter, Hewlett

to 25 0 MHZ

Signal Source on operating frequency. (CV no

Tool GC#5009 or equivalent. Tool GC#8606 or equivalent.

Tool GC#8609 or equivalent.

Meter or other means of determining

An accurate Communications Receiver may

be used to receive harmonics of the transm.itter

oscillator.

Output

frequency multiplication.

Frequency Generator capable of generating . 05

RMS at 600 ohms.

Filter

frequency can then be determined by direct

Alignment: V .

Packard

Load,

410B or equivalent.

minimum 10 watts (100

CAUTION:

or

T208 is necessary, it is recommended that alignment of the filter section not be attempted in the field. If filter section alignment is contemplated, the following additional

1.

Calibrated

2.

Oscilloscope with bandwidth capability of 5 MHZ minimum

and

Apply

from

its socket. Attach the Signal Generator to the IF board as

shown in Figure 8. Adjust the Signal Generator output so that the

voltage

Peak

to Peak.

the filter alignment process. Attach the probe of the

Unless a

RF Signal Generator covering 45 0

10

pf /

10

power to the unit and remove the 2nd Oscillator

at the collector of Q202

This

component

megohm

should be accomplished several

maximum loading.

change in the 450 KHZ filter Section

test

equipment is required:

(TP-F)

11

Fig. 9 never

KHZ.

exceeds

times

crystal

oscilloscope

(X2 01)

. 5

volts

during

to

the collector of Q202 and adjust the frequency of the signal generator

for O V at the top of R224. In performing the following, temporarily short the winding of T205 to ground (see Fig. 8).

CAUTION:

Tune

the slug of T204 for

CAUTION:

Remove the short from T205 and temporarily short T206 to ground.

Tune

T205 for short from T206 and temporarily short T207 to ground. Tune T206 for

MAXIMUM

Remove the short from T2 07 and tune T207 for Move the

Fig.

9). Tune T208 for

oscilloscope

the 2nd Oscillator crystal.

5.2.2 let Oscillator and "Times

Attach

Tighten trimmer capacitor C113, CI 14 or CI 15 (depending on channel in use) finger tight. clockwise until the

somewhat actually peaks. Remove the to the top of R104. (TP-B Fig. 9). Tune the slug of L103 for maximum on the

Insure that T-205, T-206 and T-207 are never

inadvertently shorted to any DC

MAXIMUM

The primary of T204 has 12 VDC present. Do not

short to ground.

MINIMUM

indication.

oscilloscope

probe, disconnect the RF Signal Generator and re-insert

the DC probe of the

VTVM

critical

and care should be used to insure that the meter

VTVM.

indication on the oscilloscope. Remove the

probe from Q202 to the top of R219. (TP-C

MAXIMUM

peaks upscale.

Disconnect the

Three"

VTVM

Turn

VTVM

voltage.

indication on the oscilloscope.

MINIMUM

indication. Remove the

Multiplier Alignment:

to Q104 source. (TP-A Fig 9).

C113, CI 14 or C115 counter-

This

from Q104

VTVM

(TP-A)

i

indication.

adjustment is

and attach

from R104.

.-A

A

5.2.3 10.7 MHZ Intermediate Frequency Alignment:

Attach and AC

slugs

5.2.4 Converter Board Alignment:

With

of the maximum indication. may be necessary to reduce the signal level to prevent limiting of the signal.

result in a sharp "peak" indication on the

VTVM

the signal source (operating frequency) to the Antenna

adjust the signal to approximately 50 microvolts. Attach the

probe of the

in T203, T202 and T2 01 for maximum indication.

the signal source attached to the Antenna

VTVM

Limiting

but leave the signal source connected.

VTVM

on the top of R219

to the top of R219 (TP-C Fig. 9). Tune the

NOTE:

is indicated when the adjustments no longer

As the various

(TP-C)

12

Jack

tune C103 and C106 for

stages

VTVM.

Jack

and the AC probe

are tuned, it

Disconnect the

5.2.5 Channel Frequency

Alignment:

Attach Adjust

the

,

NOTE:

,!

as follows:

the DC probe of the

C113, CI 14, or C115 for 0

VTVM

Operating

probe, alignment of the receiver section is completed.

The exact

crystal

Frequency - 10.7 MHZ + 5 KHZ = Desired

VTVM

to the top of R224 (TP-D Fig 9).

volts

on the

VTVM.

Disconnect

frequency (receiver only) is computed

Crystal

3 Frequency

To

order crystals for additional operating frequencies, see paragraph 3.5.

5.3 Transmitter Alignment:

5.3.1 Frequency Adjustment: ' s i.

Attach

set the

a dummy

Load

TRANSMIT

to the Antenna putput

jack

on the

FM-210,

frequency selector switch to the desired position, and apply power to the unit. If a Frequency Counter on the operating frequency is available, this should be coupled

at the Antenna

receiver

to monitor the

Jack.

An alternate method is to use an accurate

crystal

frequency. When utilizing this

method, calibrate the receiver at the checkpoint nearest the

crystal

•

the center conductor of

receiver

near

frequency to the desire

frequency. Attach a 6 inch length of insulated wire to

antenna

the FM-210

jack

to the

crystal

enough

oscillator circuit and adjust the receiver

crystal

coaxial cable to reach from the

FM-210.

Place the insulated wire

operating frequency according

to this formula:

'

Operating

Key

the transmitter with the microphone or special (Figure (C410 - CHI,

Frequency = Desired

8

Crystal

Freq.

test

fixture

6). Adjust the frequency trimmer for the channel desired C411 - CH2, C412 - CH3, see Fig. 9) until "zero^

beat" is accomplished in the receiver. If this cannot be accomplished and

the oscillator circuit is known to be working properly, any of

the following may be at fault:

»Js.-4

d.

Receiver

a.

The

b.

Defective

c.

Any

crystal

combination of the above.

calibration is inaccurate.

frequency was incorrectly calculated.

crystal

- incorrect

type

of tolerance.

Disconnect the receiver or frequency covinter cable.

fy-A

L

.s>0) T

mfri

13

5.3.2

First

Frequency Doubler Alignment:

Attach

and Remove the probe.

5.3.3 Second Frequency Doubler Alignment:

Attach Alternately

there is several the probe.

5. 3.4

Third

Attach

C3

5.3.5 Amplifier

Attach

C8

the DC probe of the

adjust the

the DC probe of the

some

times

Frequency Doubler Alignment:

the DC probe of the

(Fig. 8) for maximum indication. Remove the probe.

the DC probe of the

(Fig. 8) for maximum indication. Remove the probe.

slugs

tune

interaction, this process should be repeated

until there is no further improvement. Remove

Driver

of L401 and

L403

Alignment: v» •: ; ; 7FA

VTVM

and C423 for maximum indication. As

VTVM

to the top of R425 (TP-E Fig. 9)

lAOZ

for maximiom indication.

to Test Point 1 (TP-l Fig 9).

to TP-2 (Fig. 9) and adjust

to TP-3 (Fig. 9) and adjust

5.3.6 Power Amplifier Alignment:

Attach

Tee-Connector connected for maximum indication. Readjust

several

NOTE:

should be "peaked" using a field strength meter or a SWR Meter designed transfer

5.3.7 Audio Deviation Adjustment

Set up a Deviation Meter according to the m^jiiufacturer's re-

j

, , commendations. In the FM-210, adjust R403 (Fig. 9) maximum

counter-clockwise

Insert

jack

Meter.

the AC probe of the

if necessary). The Dummy

to the Ante ma

times

When connecting the FM-210 to any antenna, C12 and C13

for VHF use.

of RF to the antenna.

a audio signal (. 05 Volt RMS at 1, 000 HZ

(Figure 6). Adjust R409 for 12-15 KHZ on the Deviation

Remove the audio signal.

for maximum indication. Remove the probe.

(CCW),

VTVM

Jack.

This

and R409 (Fig 9) maximum clockwise.

to the antenna

Alternately adjust CI2 and C13

L403,

insures correct matching and optimum

C423,

jack

(use a

Load

must

03, C12 and C13

into

also

the MIC

remain

14

5.3.8 Audio Clipping Adjustment:

The

adjustment of R402 controls the clipping level and should be

set for individual operator preference. Maximum counter-

clockwise is maximum clipping (about 10 db) while maximum clock-wise turns the audio off. Setting the notch on the control to approximately 2 o'clock is a normal 3 db clipping level with most

microphones. A minimum of experimenting

the

setting

and

microphones.

that is optimvun for individual voice characteristics

will

yield

15

iiOJ

PARTS

LIST

MAIN

CI

. 005 mfd 20-3

C2

. 005 mfd "

C3

1.5 - 20 PF

C4

10 20-27

C5

.001 mfd 20-24

C6

7.0PFN330

C7

. 005 mfd 20-3

C8

4-40 PF

C9

. 001 mfd 20-24

CIO

.02 mfd 20-49

Cll

. 005 mfd 20-3

C12

4-40 PF

C13

4-40 PF

C15

.005 mfd 20-3

C15

1000 mfd 24-28

C16

.001 mfd 20-24

C17

.005 mfd 20-3

CI8

.005 mfd \ 0-3

C19

.005 mfd \3

C20

.005 mfd 20-3

C21

.005 mfd 20-3

Trimmer

20-21

Trimmer

Trimmer Trimmer

CHASSIS ASSY

26-18

26-19

RFCl RFC2 RFC3

Dl D2

Ql Q2

Q3

Q4

LI L2 L3 L4

Jl

PI J2 Fl

RF

Choke

RF

Choke

RF

Choke

12.

0 V

Zener

B5E5

Diode

2N4427 2N4427 2N5641 D40D1

3rd

Doub Driver Output

Loading

Antenna Connector

Power Connector

Microphone Jack

Fuse

Coll.

Tank

Coil

3A. F. B.

Coil

30-40 30-41 30-40

112-14

112-3

111-34 111-34 111-35 111-36

40-25 40-24 40-23 40-22

101-1 104-16 103-3 114-21

16

PARTS

LIST

Kl

51

R9A R9B

S2 S3

LI TPl TP2 TP3

Spkr

Rl

R2

R3 R4 R5 R6 R7 R8 R9A R9B RIO

FHl

12V Relay

ON-OFF

R9A Complete Complete

Sw. P/O

& R9B

Assy. Assy.

Assy

Receive Crystal Transmit

Crystal Indicator Lamp Test Point Test Point Test Point

3.

2 Ohm

Speaker

lOK 100 Ohm 10 K 100 Ohm 10 K 18 Ohm

2.7 Ohm W.W. 12 K 10 K P/O OF 59K

P/O OF

120 Ohm

Fuse Holder

MAIN

Sw.

CHASSIS

ASSY

/• ;

116-8 13-18

13-18

53-48 53-39

113-12 102-3 102-3 102-3

118-11

10-56

10-7 10-56 10-7 10-56 10-93 12-39 10-84 13-18

13-18

10-77

66-1 I

\ i \ '••

J 0 1

•i

•

, i

.

A

<'.

tA

'

id

1

I

-P

,

i a

ij

i Oji

,) i P

Ji,

0

* '

Tt

+1

a

'

3-

•n

)

0

•

'A;

Knob

Knob Knob Cabinet Front

Panel Overlay

Sub Panel (Front)

Rear

Panel

Manual

17

130-14-19

130-14-20

13-14-21

140-38 141-46 142-55 142-56 183-90

'©ASSV

T oil . IrD

..

. . - •

<T

AY il^A

. ... TT-J .

o

o'0/

PARTS

LIST

R401

47K

R402

50K P.

R403

120 K

R404

lOOK

R405

2.7K

R406

2.2K

CM. Control

R407 R408

lOK

R409

lOKP.C.M.

R410

lOOK

R411

lOOK

R412

lOOK

R413

lOOK

R414

lOK

R415

lOOK

R416

lOK

R417

lOK R418 330K R419

6.8K

R420

150-Ohm

R421

27 K R422

47

R423

22

R424

560-Ohm

0-Ohm 0-Ohm

R425 47-Ohm

«

C401

. 05 mfd

C402

35 mfd

C403

30 mfd

C404

10 mfd

C405

. 001 mfd

C406

.05 mfd

C407

.0015 mfd

C408

270 PF

C409

, 1 mfd

C410

4-40 PF

C411

4-40 PF

G412

4-40 PF

C413

150 PF N2200

C414

150 PF N2200

C4I5

82 PF

C416

. 001 mfd

C417

.05 mfd

C418

20 PF

Trimmer Trimmer Trimmer

200-59

Control

BOARD

10-13 13-48 10-76

10-32 10-66

10-31

10-56

13-47 10-32

10-32

10-32 10-32 10-56 10-32 10-56 10-56 10-69 10-21 10-43 10-14 10-53 10-4 '

10-67 10-29

20-87 29-7 29-3 29-14 20-24 20-87 20-52 20-86 20-88

26-17

26-17 20-81 20-81 20-83 20-24 20-87 20-70

•(•jistii

-1

Ji

aa

'

a

18

PARTS

LIST

200-5^

C419

. 01 mfd 20-5

BOARD

C420 .005 20-3 C421 47 PF " 20-19 C422 Factory Select

20-27

C423 1. 5-20 PF Trimmer 26-16

Q401 2N2926Y 111-6Y Q402 2N2926Y 111-6Y Q403

2N4916

111-32 Q404 2N2926Y ' 111-6Y Q405 2N49I6 J Q406

2N3563

111-15

111-32

Q407 2N3 9 04 111-3 0

D401 2N2926Y 7" 111-6Y DV401 MV1628

RFC401 RFC402 RFC403

2.2 Microhenry

3. 3 Microhenry 39 Microhenry 30-21

112-19

30-22 30-32

X40I

T

146.9430

Crystal X402 Special Order X403 Special Order

L401

Ist Doub

L402

2nd Doub Base

L403

2nd Doub

Y40I

Crystal

Y402

Crystal

Y403

Crystal

PCB400

Printed

Coll.

Socket 64-2 Socket 64-2 Socket 64-2

Circuit

117-39 117-39 117-39

Coil

73-

Coil

73 -

Coil

73 -

Board

200-59

18

PARTS

2

00-60

LIST

BOARD

CIOl

QlOl Q102

Q103 Q104

4.7 PF

2

10 PF

3 1. 5-20 PF

.

001 MFD

4

5

15 PF

1. 5-20 PF

6

.

001 mfd

7

.

001 mfd

8

.

001 mfd

9

50 PF N330

10 11 12

14 15

.

005 mfd 10%

.

001 mfd

1. 5-20 PF

13

1. 5-20 PF

.

16 17

001 mfd

100 PF

18 6. 8 PF

2N5485 2N5485 2N5485 2N5485

Trimmer

Trimmer Trimmer

20-25 20-92 26-16

20-24 20-71 20-16 20-24 20-24 20-24 20-96 20-89 20-24 26-16

26.-16 26-16 20-24 20-90 20-64

111-31 111-31 111-31

111-31

RFC

101 . 56

RFC102

XlOl

YlOl

SClOl

LlOl Air

TlOl

PCB

2. 2

R

146. 940

Special Order

2

Special Order

3

Crystal Crystal

2 3

Crystal

Transistor

2

Air Slug^ Tuned

3

10.7 Mhz IF

100

Printed Circuit Board

Microhenry

Crystal

Socket Socket Socket

Socket

Wound Wound

Coil Coil

Coil

Transformer

30-42 30-22

117-40 117-40

117-40 64-2 64-2 64-2 61-27

73-35

200-60

20

2

00-60

BOARD

I'

RlOl

2' 3

4

5 6 7 8 9

180

Ohm

330

Ohm

100

K

5. 6 K

220

Ohm

330

Ohm

330

Ohm

4.7

K

330

Ohm

10-71 10-28 10-32 10-83 10-58 10-28 10-28 10-36 10-28

AT

a

4) ,

5

S

21

... •. *•

i

1. i -

•HOTS

t.i

Sit

w£a

I.

PARTS

200-61

LIST

BOARD

CZOR

2 3 4 50 PF N330 5 6 7 8

9 10 11 12 13

14 15 16 10 PF 17 18 19

20 21 22 23 24 25

26

27 28 470 PF 10% 29 30

31 32

33 34

35

50 PF N330 .

01 mfd

.

01 mfd

50 PF N330

.

005 mfd 10%

.

01 mfd 20-5

.

1 mfd

.

1 mfd

.

01 mfd 150 PF 150 PF

10 PF 47 PF Part

of T2 04

Part

of 8PF Part

of

15 PF 20-71

Part

of

.

1 mfd

.

1 mfd

Part

of

.

1 mfd

.

05 mfd 20-87

.

05 mfd

.

01 mfd

470 PF 10%

.

02 mfd

.

1 mfd

.

01 mfd

470 PF

.

05 mfd

20-96 20-5 20-5 20-96 20-96

20-89

20-88 20-88

20-5

20-91 20-91 20-92

20-19

20-92

T205

20-94

T206

T207

20-88 20-88

T208

20-88

20-87

20-93

20-5 20-93 20-49 20-88 20-5 20-93 20-87

R201

270 K

2 3 4 5 6 7

3.

9 K

2.7 K

1. 0 K 10 K 10-56

1. 0 K

2.2 K

22

10-12 10-16 10-66 10-42

10-42 10-31

PARTS

2

00-61

•

>

R208

330 K . 10-69

LIST

BOARD

9 1.8K 10-17 10 180 0}}m ' 10-71 11 2.7 K 10-66 12 l.OK 10-42 13 10 K 10-56

14 33 K 10-65 15 100 Ohm 10-7 16 150 Ohm - 10-43

17 4.7 K 10-36 18 27 0 Ohm 10-12 19 1.8K 10-17

20 l.OK 10-42 21 330 Ohm 10-28 22 390 Ohm 10-85 23 220 Ohm 10-58 24 lOK 10-56 25 10 K 10-56 26 lOK 10-56 27 4.7 K 10-36

Q201

2N3855 111-11

2

2N3855 111-11

3 2N2926Y 111-6Y 4 " "

5

II II

6

" "

•^11 II

D201

1N270 112-10

2

II , "I

3

" II

4 II II

RFC201

T201

220

Microhenry

2

1.0

Millihenry

10.7 MHZ

2

II II 'I

2

II II II

4 450

5

". " "

6

" " "

KHZ (nominal)

I.F. Transformer

I.F.

Transformer

73-35

73-36

<y M II II

Q

It 11 II

23

PARTS

2 00-61

LIST

BOARD

.'I

TF201 Ceramic

X201

2nd Osc

Y201 Crystal

Resonator

Xtal

(WB)

Socket

PCB201 Printed Circuit Board

117-42

117-41

64-2

200-61

-0.

••t

24

a

-tyii

i) V •

- .

It

H

PARTS

LIST

200-62

C30I

.01 mfd X- 20-5

2

. I mfd ^ 20-88

3

. 1 mfd • 20-88

5

100 mfd 29-13

R301

68 K 10% 10-33

2

1

3

lOK : ^r, H X 10-56

4 22K 5% ' 10-37

5

150 Ohm 10-43 6 2.2K 10-31 7 220K

8 12 Ohm . 10-26 9 270 Ohm 10-68

10 1. 0 Ohm IW 11-23

11

22OK

12 lOK 10-56

Q301 2N2926Y 111-6Y 0302 "

Q303

2N3638

Q304 D42C1

Q305 D43C1 (Green) Q306 2N2926Y

MEG

10-10

5% 10-30

5% 10-3 0

111-6Y

111-10E

(Red) 111-37

x r

BOARD

n 111-38

II1-6Y

D301

B5E5

2

B5E5

PCB300

Ti 112-3 ^ 112-3

Printed

Circuit

Board

200-62

25

SECTION

vn

SERVICE

7. I Returning Equipment for Service:

DO

NOT ship equipment to permission. often

avoid delay of unexpected shipments.

If

time is extremely important it is better to wire or

approval

is expected, even the time of sending you the labels is

lost when an unexpected shipment is received.

It

is

VERY insured. and

will

this trouble. ' H

ALL

SHIPMENTS should be made in our standard cartons only so save your carton be handled in three ways ... *^

when unpacking the unit. When shipments are returned it may

We prefer to send special shipping labels and this

and we

IMPORTANT

Damage claims must be settled

greatly delay any returns. Proper packing normally avoids

will

MUST

rush

that the shipment be well packed and fully 8

BE

INFORMATION

Galaxy

shipping labels to you. When a shipment ^

SENT

Electronics without

TO US

between

PREPAID.

you and the

All returns

prior

call

less

written ^

will

iota

us for

than that

ys

carrier

SI

to

Where transportation

all service is in warranty the shipment

costs

1 - If there are any charges not covered by warranty

we can hold the shipment and advise you of costs,

which

i

with

carrier

2 - Or if there are charges not covered by warranty you

may make pay the transportation charges on

3

- Or we by warranty, then the

and

you can then send and shipment

Only

send a blank check payable to us, which we

out for the charges or our service and you then

will

the transporation

collected by the

transportation

on

arrival.

ship C. O. D. for any charges not covered

carrier

costs

carrier

costs

on

collected by the

will

arrival.

will

be returned with

on

arrival.

will

arrival.

collect

these

arrive

will

charges

•iota

s

26

SECTION

WARRANTY

VIII

GALAXY ELECTRONICS or

workmanship existing in the FM-210 at no

clusive of shipping charges, provided:

-That

This

warranty applies to labor for a period of 90 days, and for other

parts

for a period of one year from the date of purchase by the original

owner.

The

warranty applies to only the original purchaser and is not transfereable.

the

defect installation or use contrary to our instructions .

the unit serial number has been regis-

tered with us by the original purchaser.

the equipment or part that appears defective is delivered to us or the authorized repair

tion.

disclose a defective part or workmanship.

station we may designate for examina-

examination

guarantees to remedy any

cost

to the owner, ex-

is not caused by improper

does,

in our judgement,

defect

in material

This

warranty

curred,

above.

No person is authorized to assume for us any other liability in connection with

GALAXY ELECTRONICS necessary or desirable by us to improve the product, without advance notice, or incurring any obligation to make like changes or improvements in

units previously manufactured or sold.

All

last FM-210 has been manufectured by us.

All

quirements should be direct to:

and our

the sale of this or other of our products.

warranties expressed here are void and terminated one year after the

correspondence relating to warranty service or other service re-

does

not cover any transportation

sole

liability is repair of any

reserves the right to make any changes deemed

Galaxy

Attn:

10 South 34th St.

Council

Electronics

Customer Service Department

Bluffs, Iowa 51501

costs

defect,

that may be in-

for the period stated

27

^ i:

AMP

PN5A85

RF

QlOl

POWER

AMP

03

2N564I

MIXER

am

2N5485

Mill

I in IIK

107

IF

AMP

020I

2N3855

12 0V

~OUTPUT

OSC

Isf

DOUBLER

0406

2N5S63

GALAXY FM2I0

BLOCK DIAGRAM

FIG 7

VARICAP

MODULATOR

DV40I

MVI628

1st

IF

AMP

IVOISl

RECllfltR

D20l'2

IN270',

1404^1^

ACTIVE

FILTER

04052N49I6

UMITER

0206

2N2926Y

•V'l'l'

/".VI

•'(JIIUCH GAl

0306

2N2926Y

CLIPPER

0403

2N49I6

•

/ /,•

I

2nd

LIMITER

0207

2N2926Y

Alio III

iHii

n/i

040I-2

2N2926Y's

MIC

AMP

niSCRlMlN

AJOR

It i'OI

(

FIG

8

FIG

9

8,

3

2N3S&3

c.

8

7)

2N38SS

y^uLow

8

2N4A27

M - CoiLScroR - BoPY

B

2R363a

w 2NSA8S

0X7

lim 69-003 90d

O

OOO

OO OO

O

o o o o o o o

•K

no/

o

\0PT

TtOI

o

oo

PCB 200-60 CONVERTER

A

0204 jS

T207

riOG^ TZOS

T204

R204

,

1

^^^2^^

^ (£I3) <^

2^

PCB 200-61

T20I

—

IF

Kl-

ANT

Jl

RELAY

GAL

I

CHASSIS

NOTES:

I

AUswifchs shown in max.

2 *- Capacitors ore integral port of respective transformer

assembly. Hon-replaceable independently.

3 'S -

reactory

Selected values

CCW

position

0202

2N3855

GALAXY

FM210

C2I8

SCHEMATIC DIAGRAM

I

'St

IF

i

MFD.

BY GALAXY ELECTRONICS

10

COUNCIL

30.34

BLUFFS,

ST.

IOWA

51501

9-9-'69L.RC.

9-l2.e9

L R.C

!,-30-e9L

R C