Electrophone TX-560 User manual

lectrephone
AWSSI3
TRANSCEIVER
MODEL IX 560
Electrophone
Model TX-560
40-Channel
27MHz AM/SSB Deluxe
Mobile 2-way CB

®
Instruction Manual

General description
Thank you for your confidence in selecting an
Electrophone CB radio. We know you will find
your transceiver as exciting as it is practical.
We have combined superb workmanship and
modern styling with the very latest state-of-art
circuitry to bring you the new TX560 AM/SSB
Citizens Band Slimline Transceiver. It has been
especially designed to give you maximum
performance and reliability. Your TX560
AM/SSB is completely factory aligned and
quality assurance tested. To obtain the maxi-
mum benefit and pleasure from your
TX560 AM/SSB, please read the contents of this
manual very carefully before attempting to
install or operate the transceiver.
Features.
Compact size, smaller than most other AM/SSB
transceivers, takes up less space in yaur vehicle.
Full 40 channel operation: PLL frequency
synthesizer circuitry allows transmission and
reception on all 40 channels of the 27MHz
Citizens Band Radio Service.
Large L. E. D. function indicator: Indicates
with bright easy to read L.E.D.'s the:
(i)
Selected channel,
(ii)
Received signal strength,
(iii) Transmit indicator,
(iv) Receive indicator,
(v)
Public address operation
Clean signal: Transmitter audio processing
circuitry produces a clean signal with maximum
legal modulation, for best range.
Quiet reception: Effective squelch and auto-
matic noise limiting for superior quieting.
Effective AGC: Receiver amplified automatic
gain control (AGC) reduces the effect of differ-
ences in received signal strengths. No distract-
ing " blasting" or "fading" of signals.
An efficient transmitter: Provides maximum
power to the antenna. 4 watts on A.M., 12
watts P.E. P. on S.S. B.
Public address function; Useful for paging and
announcements.
contents
General description
 2
Specifications

3
Operating controls 
4
Rear panel connections 
5
Installation  6
Channel information 
7
Antenna installation 
8
Operating instructions  9
Base station operation
 10
Optional accessories 
10-11
2

Specifications TX560
Controls:
Switches:
Connections:
General.
Frequency range:
No. of channels:
Power supply:
Power consumption:
Transmitter.
Power output:
Transmitter modes:
Harmonic suppression:
Receiver.
System:
IF:
Sensitivity:
Selectivity:
Clarifier:
Audio output:
Squelch range:
26.965 MHz - 27.405MHz
40
13.8 volts D.C. negative
Receive:  1.3 1.3 Amps
full audio.
Transmit: 
2.2 Amps
full modula-
lation.
AM:

4 watts R.M.S.
SSB: 
12 watts P.E.P.
AM:

Amplitude mod-
ulation, high
level class B.
SSB: 
Sideband, car-
rier suppression
more than
40dB.
Unwanted side-
band suppres-
sion more than
58dB down.
More than 70dB down.
AM/SSB:

Single
conversion superhetero-
dyne.
AM/SSB:

10.695
MHz (separate crystal
filters for AM and
SSB)
SSB:

0.25 microvolts
for 12dB SINAD.
A.M.: 0.6 microvolts
for 12dB SINAD.
SSB:

2kHz -6dB
10kHz -60dB.
AM: 
5kHz -6dB;
±10kHz -60dB.
± 800Hz range.
2.5 watts at 8 ohms.
SSB:

0.7 to 500
microvolts.
AM: 
1 to 500
microvolts.
Channel selector,
Volume/Power
ON/OFF, Squelch,
Clarifer.
Noise blanker, CB-
public address, auto-
matic noise limiter,
AM/LSB/USB,
local/distant.
Microphone socket, D.C.
power Input socket,
Public address speaker
socket, external loud-
speaker socket.

®  CD
Electrophone
AM/SSB
TRANSCEIVER
MODEL TX560
SIGNAL
DX 
LOC
c=i g=2
1 2 3 4
TX RX

PA
I= =I

I=3
VOLUME SQUELCH
CD CD
SSB ■
AM CL

R 
Operating controls
1. CHANNEL SELECTOR.
Selects any one of the 40 operating channels in
the 27MHz CB band.
2. L.E.D. FUNCTION INDICATOR.
This serves several functions:
(a)
Gives a bright L.E.D. indication of the actual
channel number.
(b)
Signal strength meter. 1-4 red L.E.D.'s light
up according to signal strength. Weak
signal indication by DX - (1) .5uV,
(2) 1.5uV, (3) 8uV, (4) 30uV.
Strong signal (marked L.O.C.).
(c)
Indicates when transmitting (TX) red or
receiving (RX) green.
(d) Indicates when switched to public address.
3. SQUELCH CONTROL.
Turn the knob clockwise until background noise
disappears. Now you can hear.. signals without
annoying background noises. Rotating the
squelch too far clockwise decreases reception
sensitivity, and very weak stations would not be
received. Therefore, when you are in communi-
cation with a distant weak station, rotate the
squelch all the way counterclockwise.
4. VOLUME CONTROL/POWER SWITCH.
This turns power ON or OFF and controls the
sound output level from the speaker.
5. MICROPHONE SOCKET.
Accepts the microphone plug. A push to talk
microphone is supplied with the transceiver.
6.
MODE SWITCH.
Selects mode of operation LSB/USB or AM.
7.
CLARIFIER.
This control is used on the LSB/USB mode to fine
tune the signal (on receive only). Adjust this
control either way to receive the clearest or most
intelligible signal.
8.
N.B. SWITCH.
This switch pushed "IN ", actuates the noise
blanker circuit which considerably reduces im-
pulse type noises such as interference from spark
plugs.
9. ANL SWITCH.
Push "IN" to actuate ANL (automatic noise lim-
iter) circuit to reduce atmospheric noise interfer-
ence.
10.
PA/CB
Your tranceiver is equipped with a PA (public
address) amplifying system which works in con-
junction with volum control. Switch to P.A.
("IN") for PA operation & switch ("OUT") to
CB for normal 27MHz transmit and receive
operation.
11.
LOCAL/DISTANT SWITCH.
Select distant position ("OUT" position) for weak
signals or normal signals. Select local position
("IN" position) if very strong signals are causing
overload and spluttering.
4

13.8V DC

EXT. SP

PA
O
Rear panel connections
1.
ANTENNA CONNECTOR.
Used for connecting the antenna and matches
PL-259 type coaxial plug.
2.
PA SOCKET
This socket is used to plug in an external horn
speaker (8 Ohm) and the transceiver can then be
used as a public address system or loud hailer.
Uses a standard 3.5mm mini-type phone plug.
3.
EXT SP SOCKET.
Used for connecting an external speaker (imped-
ance: 8 to 16 Ohm). Matches 3.5mm
Standard mini-type phone plug. Insertion of an
external speaker into this jack will automatically
silence the built in speaker.
4.
DC POWER SOCKET.
The DC power cord supplied plugs into this
socket and connects to the 12V battery system.
Do not force the power plug into the pins.
Align the key in the plug to the keyway in the
socket.

Installation
Location
Plan the location of the transceiver and micro-
phone bracket before starting the installation.
Select a location that is convenient for operation
and does not interfere with the driver or passen-
ger in the vehicle.
In automobiles, the transceiver is usually mounted
to the dash panel with the microphone bracket
beside it.
Mounting and connection
This radio is supplied with a universal mounting
bracket. The transceiver is held in the bracket
by the two thumb screws (supplied), permitting
adjustment to the most convenient angle. The
bracket must be mounted with the machine screws
(supplied). The mounting surface must be me-
chanically strong. Proceed as follows to mount
the transceiver:
After you have determinined the most convenient
location in your vehicle, hold the radio with
mounting bracket in the exact location desired.
If nothing interferes with mounting it in the
position, remove the mounting bracket thumb
screws and mark the mounting holes using the
bracket as a template. Before drilling the holes,
make sure nothing will interfere with the installa-
tion of the mounting bolts. Drill the holes and
mount the bracket and then install the transceiver.
Connect the antenna cable plug to the standard
receptacle on the rear panel. Most CB antennas
are terminated with a type PL-259 plug which
mates with the receptacle on the rear panel.
Battery connection
This radio may be installed and used in any 12V
DC negative efises44.i.oe ground
-
system vehicle.
Most new cars or small trucks use a negative
ground system while some older cars and some
newer large trucks may use a positive ground
system.
1. Negative ground system: Connect the
red power lead from the radio to the positive
or (±) battery terminal or other convenient
point, and connect the black power lead to
the chassis or vehicle frame or (—) battery
terminal.
Positive ground system: In the cas
pos 
round system, connect
 lack
power lea

the radi

the negative or
(—) battery termin
 other convenient
point, and

ect the re•
 er lead to the
chas 
r vehicle frame or (+) ba
terminal.
In automobile installation, ± 12V DC is usually
obtained from the accessory contact on the
ignition switch. This prevents the set being left
on accidentally when the driver leaves the car
and also permits operating the radio without the
engine running. You can locate the accessory
contact on most ignition switches by tracing the
power wire from the broadcast receiver existing
in the car.

Channel information
Australian 40/18 channel conversion chart

40  18
Ch. Frequency Ch. Suggested Usage

1 26.965MHz.  General AM
2 26.975MHz.

3 26.985MHz.

// I/
4 27.005MHz.
5 27.015MHz. 1
6 27.025MHz. 2
7 27.035MHz. 3

8  27.055MHz. 4

"
(3)

9  27.065MHz.  5 
Emergency Channel (1)

10 27.075MHz.

General AM
11

 27.085MHz.  6  Call Channel AM (1)
27.095MHz. 7 General AM
12 27.105MHz. 8
I/ I/
13 27.115MHz. 9
14 27.125MHz. 10
15 27.135MHz. 11

16 
27.155MHz. 12 
Call Channel SSB (
1 )

17  27.165MHz. 13 
General SSB

18 27.175MHz. 14

II II
19 27.185MHz. 15
27.195MHz. 16
40 
18
Ch. Frequency Ch. Suggested Usage
20 27.205MHz. 17 General SSB
21 27.215MHz.
22 27.225MHz. 18
23 
27.255 MHz.
24 
27.235 MHz.
25 
27.245 MHz.

I/
26 
27.265 MHz.
27  27.275 MHz.
28 
27.285 MHz.
29 
27.295 MHz.
30 
27.305 MHz.
31 27.315MHz.
32  27.325 MHz.
33  27.335 MHz.
34  27.345 MHz.
35  27.355 MHz.

(2)
36  27.365 MHz.
37  27.375 MHz.
38 
27.385 MHz.
39  27.395 MHz.

/I
40 27.405MHz.

/I
(1) Legally Designated.  (2) Suggested 2nd SSB Call Channel.  (3) Suggested Road Channel.
Ignition noise interference
Use of the mobile transceiver at low level signal
conditions is normally limited by the presence of
electrical noises. The primary source of noise in
an automobile installation is from the generator
(or alternator) and the ignition system in the
vehicle. Under most operating conditions, when
signal level is adequate, the background noise
does not present a serious problem. Also, when
extremely low level signals are being received,
the transceiver may be operated with the vehicle
engine off.
If you are receiving excessive interference from
the electrical system on your vehicle contact your
dealer or an auto electrician for advice.
WARNING: Accidental reversal of the
positive and negative connections may
cause serieus damage to the transceiver
which would void the warranty. If the
fuse blows replace it with a 3Amp 3AG
type.
7

Antenna installation
Antenna selection
This radio is designed to operate into a 52 ohm
CITIZENS BAND RADIO antenna. Best results
will be obtained from your transceiver if you use
a good antenna, properly installed. (Refer to
the antenna installation instructions included with
your antenna.)
A vertically polarized quarter-wavelength whip
antenna provides the most reliable operation and
greater range. The shorter loaded-type whip
antennas are more attractive, compact and
adequate for applications where the maximum
possible distance is not required. Also, the load-
ed whip antennas do not present the problems of
height imposed by the full quarter-wavelength
whip.
Mobile whip antennas utilize the metal body of
the vehicle as a ground plane. When mounted
on a corner of the vehicle, they are slightly direc-
tional, in the direction of the body of the vehicle.
For all practical purposes, however, the radiation
pattern is non-directional. A slight directional
characteristic will be observed only at extreme
distances. A standard antenna connector (Type
SO-239) is provided on the transceiver for easy
connection to a standard PL-259 cable termina-
tion.
There are many types of approved aerials and
mounts for the motor vehicle, the most common
of which is the 1.5metre fibreglass helical whip
(A51C). For the best performance, this type of
aerial is fitted to an (ABS) vehicle mount situated
in the centre of the vehicle roof. The connection
of a (CBL 12) 4 metre lead from the mount to the .
TX 560 completes the ideal aerial system. The
aerial is then tuned to maximum performance
with the aid of an S.W.R. meter (310). Either
your C.B. dealer will do this for you or show you
how. If it is not desirable to drill a hole in your
vehicle roof, other mounts are available i.e. the
(ABGM) gutter mount or the (AB12) roof rack
mount. Alternative length helical whip aerials
are also available (see "Optional accessories").
For vehicles with non metallic i.e. trucks with
fibreglass cabin tops the aerial may be mounted
on the cabin roof or on the rear vision mirror
bracket.
Because of the absence of a metal ground plane,
best performance will be obtained by connecting
the aerial to a matcher unit (Matcher 140) which
must be adjusted with an S.W.R. meter, or an
ATU27 which has its own tuning indicator. The
output of either units then connects to the
antenna socket on the transceiver.

Operating instructions
Important
NEVER ATTEMPT TO TRANSMIT WITHOUT
AN ANTENNA CONNECTED TO THE
TRANSCEIVER OTHERWISE DAMAGE MAY
OCCUR TO THE OUTPUT TRANSISTORS
WHICH WOULD VOID THE WARRANTY.
AM operation
Receive operating procedure
1.
Place the CB-PA switch in CB position.
2. Place the LSB/USB/AM switch in the AM
position.
3.
Turn the set on by turning the VOLUME
CONTROL clockwise, past click.
NOTE: Microphone must be plugged in for
receiver to operate.
4.
Set the VOLUME CONTROL for a comfortable
audio level.
5.
Listen to the background noise from the
speaker. Turn the SQUELCH CONTROL
slowly clockwise, until the noise just
disappears. The squelch is now properly
adjusted. The receiver will remain quiet until
a signal is received. Do not advance the
control too far, as some of the weaker signals
will not open the squelch.
6.
Set the CHANNEL SELECTOR switch to the
desired channel.
Transmit operating procedure
1.
Select the desired channel you wish to
transmit on.
2.
If the channel is clear, depress the push-to-talk
switch on the microphone and speak into the
microphone in a normal voice.
S.S.B. operation
You may only use S.S.B. operation when talking
to another station which also has an S.S.B. trans-
ceiver. Stations which have A.M. mode only
will not be able to understand your transmission.
The recommended procedure is to initially com-
municate on A.M. and if the reception in either
direction is becoming weak, select in conjunction
with the other station, either USB or LSB mode
and stronger signals will be received. It will be
necessary to adjust the clarifier control for
clearest reception.
Public address
operation
For P.A. (Public Address) operation use an
external 8-16 ohm Speaker.
1.
Connect PA speaker or Loudhailer using
"TINI PLUG" (3.5mm) to the PA socket on the
rear of the set.
2.
Press in the CB-PA button.
3.
Press the microphone button. Speak into the
microphone and turn the volume control in a
clockwise direction to adjust the volume from
the PA speaker. The internal speaker of the
transceiver is disconnected when in the PA
mode.
9

SYS1O9
Gutter Mount
Centre Load
C/W Lead
and Plug
CBA900
Magnet Base
Aerial, C/W
Lead & Plug.
Base station operation
The TX560 may be operated as a base station
by connecting to a 240V A.C. power supply with
an output of 13.8 volts D.C. and a continuous
current rating of 4Amps.
Alternatively an attractively styled Electrophone
Base Station Cabinet Part No.GB590 is available.
The TX560 transceiver slides into this cabinet. It
has a built-in power supply which connects to the
240v AC mains and provides an output of 13.8v
DC, a good quality front speaker and a built-in
digital clock with alarm and reset facilities.
The 13.8v DC output from the power supply and
the extension speaker must be plugged into
the rear of the transceiver.
A base station antenna should be mounted as
high as possible e.g. on a chimney and low loss
50 ohm coaxial cable type RG8/213 used to run
from the aerial to the transceiver.
The transceiver can be removed from the cabinet
and used in a vehicle if required.
Optional accessories
STANDARD COMPONENTS PTY. LTD. supply a
wide range of quality accessories for the C.B.
Radio operator which are available from your
local dealer:
Fibreglass Helical Whips, Base Station Aerials,
Aerial Bases, Adaptors, Cable and Connecting
Leads, Antenna Matchers, S.W.R. Meters, Plugs
and Sockets, Interference Filters, Horns and
Speakers, Power Supplies, Microphones.
Some Items are Illustrated Here.
Fibreglass helical whips
A61C
1.8m Fibreglass
Helical Whip
A51C
Kingray 1.5m
Fibreglass Helical
i. Whip
A35C
lm. Fibreglass
Helical Whip
A24C
60cm F.G. Helical
Whip.
CB27/CB103
Base Loaded
Spring Aerial
Lead & Plug
A9BS
1 / 4 Wave Base
Station Aerial
I
10

MATCHER 140
50-ohm Antenna Matcher, simpli-
fies SWR setting to ensure 50-ohm
Aerial/Transceiver
Matching.
PANTHER
CB
POWER
SUPPLY
13.8V
4Amp
Peak D.C.
AB12 
AERIAL BASES & ADAPTORS
Roof Rack/ Mirror Stem

AB-S
Mount (Suits ABS Base).

Standard Vehicle
Mount Base.(Use
with A24C/A35C/
A51C/A61C Aerials)
171
Dual Power/SWR/Field Strength Meter
(Bench Type) measures power 0-10/0-100W.
CC2
Misc. Curly Cord.
NC552
PL258 type
chassis mount
socket —
surface mount
screw fix.
GME
ELECTROPHNE
MODEL WT273
A powerful(2
watt), hand held
transceiver which
gives longer range
and greater
reliability.
CABLES
CBL12
4m 50-ohm connecting lead
complete with
PL259 plug
to open end.
CH55-F
P.A. Horn
Speaker
CB ACCESSORIES
8-105
Ext. Speaker
PLUGS & SOCKETS
NC 572
Solderless cable
(PL259 type) plug.
AB-GM
Heavy duty. Adj.
Gutter Mount.
Suit ABS Base.
17

WARRANTY
Your product carries the following warranty (Subject to the condi-
tions stated below):-
90 DAY FREE SERVICE
Any defect in materials or workmanship occurring within ninety (90) days
from the date of delivery will be rectified free of charge by STAND-
ARD COMPONENTS PTY. LTD. via your Dealer.
CONDITIONS: —
1 All Claims for warranty service must be made to the Retailer from
whom this product was purchased. All transport charges incurred in
connection with warranty service or replacement will be paid by the
purchaser.
2.
This warranty extends only to defects in materials or workmanship
occurring under normal use of the product and when operated in
accordance with our instructions.
3.
The benefits given to the customer by this warranty are in addition
to all other rights and remedies which the customer has in law in
respect of the product.
4.
Reasonable evidence must be supplied that the product was purchased
within 90 days prior to the claim.
DISTRIBUTED IN AUSTRALIA BY
STANDARD COMPONENTS PTY. LTD.
10 HILL STREET, LEICHHARDT, NSW 2040
TELEPHONE: [phone]. TELEX : AA26827 SCGME
ALWAYS INSIST ON ELECTROPHONE FOR RELIABILITY
KTTX560 * XX
Printed in Japan
0625 KM