Colonel 324 User manual

23 CHANNEL
MOBILE/BASE TRANSCEIVER
WITH
SCANNING FEATURE
OWNE

UIDE

MIKE
JACK
INSIDE CHANNEL
RED LAMP
INSIDE CHANNEL
SELECTOR
MICROPHONE 
SYNTHESIZER
MODE SWITCH
OUTSIDE CHANNEL
SELECTOR
ANL
SWITCH
PUBLIC ADDRESS SWITCH
TRANSMIT LAMP
MOUNTING BRACKET
ANTENNA CONNECTOR
/
TERMINAL FOR SELECTIVE
CALL DEVICE
POWER SUPPLY
/
/
EXTERNAL SPEAKER JACK
OPERATION OF CONTROLS
OUTSIDE CHANNEL
GREEN LAMP
Figure 1
1
PUBLIC ADDRESS SPEAKER
Figure 2

OPERATING CONTROLS AND FUNCTIONS FIGURES 1 & 2)
VOLUME-ON/OFF
This is the power on/off switch and speaker volume control.
Rotate to
the right to turn the set on and increase
the volume. This control does not affect the transmitting output.
SYNTHESIZER MODE SWITCH
A 3-position slide switch provides selecting the following synthesizer modes.
Position A

Transmit/Receive on inside channel selector.

(Red Light)
Position SCAN

Receiver scan of inside and outside channel selector, and Transmit on inside channel selector.
Position B

Transmit/Receive on outside channel Selector. (Green Light)
(NOTE: Transmitter will only operate when synthesizer mode is position "A"or "B".)
CHANNEL SELECTORS
Both inside and outside channel selectors control both transmitter and receiver frequencies simultaneously when synthesizer
mode switch is in position "A" or "B". In connection with the synthesizer mode switch, either inside or outside channel
selector may be set to any of the 23 positions.
ANY CHANNEL SCANNING FEATURE
This provides you with the unique feature of allowing you to monitor any two channels of all 23 channels.
When all other controls are adjusted for normal operation and the channel selectors are set to any two channels, (one on the
inside channel selector and another on the outside channel selector), which you desire the receiver to scan. Set the syn-
thesizer mode switch to the position "SCAN". Then, turn the squelch control knob clockwise until receiver noise is muted
(squelched) for automatic scanning. When an incoming signal releases the squelch, the receiver will lock on that channel.
When the message on that channel is ended, the receiver will automatically resume scanning the two channels you have set.
Or if you desire to respond to the message on that channel, it is necessary to turn the synthesizer mode switch position, "A" or
"B", to which that channel belongs. For your convenience the  303.324 has been so designed you can transmit inside
channel when the synthesizer mode switch .is on "Scan"
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SQUELCH
Quiets the receiver when signals are not being received and allows a quiet standby operation. It functions only in the
receive mode and does not affect the receiver volume when signals are being received. To adjust: When no signals are
present, rotate the squelch control clockwise until the receiver is quieted. Incoming signals will automatically release the
squelch. Careful adjustment is necessary, as settings too far to the right will not allow weaker signals to release the
squelch.
PA-CB SWITCH
This unit may also be used as a paging amplifier by connecting a suitable 8-16 ohm speaker to the P.A.output jack
(Figure 2) and setting the PA-CB switch to the PA position. Press and hold the push-to-talk bar on the microphone and
speak into the microphone in a normal tone of voice.
ANL (AUTOMATIC NOISE LIMITER) SWITCH
This switch controls the noise limiter circuit which has been designed to reduce excessive electrical interference, ignition
noise, etc. Generally, in mobile operation with the engine running, the ANL should be on.
TX LIGHT
This is a transmit indicator light and will glow red when the push-to-talk bar on the microphone is pressed.
S-RFO METER
This is a dual purpose meter that measures the relative strength of incoming signals when receiving and the relative power
output when transmitting.
MOBILE INSTALLATION
Safety and operating convenience are the primary factors to consider when mounting any piece of equipment in an
automobile. Be sure that the transceiver controls may be easily reached by the operator. Also be sure that connecting
cables do not interfere with the operation of the brake, accelerator, etc.

POWER CONNECTION
When used in mobile operation, the vehicle's battery supplies the power.
CAUTION:  The
.Colonel
303.324 is designed to be used in a 12 volt DC negative ground system only. If you are unsure
of your vehicle's polarity, ask your dealer or local service station.
The red wire from the Colonel 303.324 is positive and may be connected directly to the positive or + battery terminal
or to a fuse block or ignition switch or other convenient point.
The black wire is negative or ground and should be connected to a metal part of the vehicle body or frame or - battery
terminal.
To insure proper operation, care should also be taken in attaching the transceiver and mounting bracket to the vehicle in
such a way as to obtain good ground connection at this point.
MOBILE ANTENNAS
A vertical whip antenna is best suited for mobile operation. A nondirectional antenna should be used for best results in
any case. The base-loaded whip antenna will normally provide effective communication or for greater range and more
reliable operation a full quarter-wave whip may be used. Either of these antennas use the metal car body as a ground
plane and the shield of the base lead as well as the metal c.ase of the transceiver should be grounded. A standard antenna
connector (type SO-239) is provided on the transceiver for easy connection to a standard PL-259 coax plug. Following
the antenna manufacturer's instructions carefully will insure proper operation.
BASE STATION OPERATION
Although the Colonel 303.324 is designed for mobile operation, it will work equally well as a base station when connect-
ed to a suitable base station power supply.
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When the Colonel
303.324 is used as a base station, any Citizens Band beam, dipole, ground plane or vertical antenna may be
used. A ground plane type antenna will provide good coverage, and since it is essentially non-directional, it is ideal in base
station to mobile operation. From base station to base station or point4o-point operation a directional beam will give
greater distance even under adverse conditions. The range of the transceiver also depends on the height of the antenna so
whenever possible, select the highest location
GENERAL OPERATING INSTRUCTIONS
The explanations of operating controls and functions should be read and understood before actual operation of this transceiver.
1.
Plug in the microphone and check to be sure that the antenna and power cables are properly connected.
CAUTION: Do not transmit until an antenna or suitable dummy load has been connected to the coax antenna output
jack.
2.
Set the synthesizer mode switch position to "A" or "B", the channel selector to the desired channel.
3.
Initially, set the squelch control fully counterclockwise.
4.
Set the PA-CB switch to the CB position.
5.
Turn the set on and adjust the volume control to the desired level.
6.
To transmit, press the push-to-talk bar on the microphone.
7.
For scanning any channel you desire, see ANY CHANNEL SCANNING FEATURE on
page
2.
SPECIFICATIONS
GENERAL
Circuitry:

28 transistors,
35 diodes, 1 Integrated Circuit ,1
FET
Frequency Control:

±
0.005% crystal
Channels:  23 — all supplied
Controls:

On/off/volume; PA/CB; variable squelch;
ANL on/off;
channel selectors; synthesizer mode switch
knob

Jacks & Connections:

Provided for 8-ohm speaker, 52-ohm antenna, microphone
selective call
Power Source: 
12-15
volts, DC
Speaker:

Bottom-mounted 3",8 ohm
Microphone: 
2,000 ohm, dynamic, low impedance
PA Audio Output:  2.5 watts
Size:

7 3
4"X 2
11 / 4
x
9- 3 / 4 "
Weight:
 4- 1
12 lbs.
Accessories Included:

Mike and cord, mobile mounting bracket,
mike hanger
fused DC auto cable, mounting hardware
RECEIVER
Receiving System:

Dual conversion superheterodyne
Sensitivity:
 0.5 uv for 6 db (S + N)/N
Selectivity:
 ± 5 KHz at 6 db
Spurious Rejection:

50 db
Audio Output Power:

2.5 watts
Squelch Range:

1 to 500 uv
Intermediate Frequency:

1st Conversion: 10.635 MHz
2nd Conversion: 455 KHz
TRANSMITTER
Modulation: 
High level Class B
RF Input Power:
 5 watts
RF Output Power:

3.1 watts
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PARTS LAYOUT

CRYSTAL SYNTHESIZER LIST
CH
Frequency
1st RX & TX OSC
FREQ.
2nd TX OSC
FREQ.
2nd RX OSC
FREQ.
1
26.965
26.965 -  16.965
=
10.000 =
9.545
+
.455
2
26.975 26.975
-  16.965
=
10.010 = 9.555
+
.455
3
26.985 26.985
- 
16.965
=
10.020 =
9.565
+
.455
4
27.005
27.005 - 
16.965
=
10.040 = 9.585
+
.455
5
27.015 27.015
- 
17.015
=
10.000 =
9.545
+
.455
6 27.025
27.025 - 
17.015
=
10.010 = 9.555
+
.455
7
27.035
27.035
- 
17.015
=
10.020 = 9.565
+
.455
8 27.055
27.055 - 
17.015
=
10.040
= 9.585
+
.455
9 27.065
27.065
-  17.065
=
10.000 = 9.545
+
.455
10
27.075
27.075 -  17.065
=
10.010 = 9.555
+
.455
11
27.085
27.085 -  17.065
=
10.020 = 9.565
+
.455
12
27.105
27.105 -  17.065
=
10.040
= 9.585
+
.455
13 27.115
27.115 - 
17.115 =
10.000 = 9.545
+
.455
14
27.125
27.125 - 
17.115 =
10.010 = 9.555
+ .455
15 27.135 27.135
- 
17.115
=
10.020 = 9.565
+ .455
16
27.155
27.155 - 
17.115
=
10.040
= 9.585
+
.455
17
27.165
27.165
-  17.165 =
10.000 = 9.545
+
.455
18
27.175
27.175 -  17.165
= 10.010
=
9.555
+
.455
19
27.185
27.185 - 
17.165 =
10.020
= 9.565
+
.455
20 27.205
27.205
-  17.165 =
10.040 = 9.585
+ .455
21
27.215
27.215
- 
17.215
=
10.000 = 9.545 + .455
22
27.225 27.225
-  17.215
=
10.010 = 9.555 + .455
Vacant 
27.235
27.235 - 
17.215
=
10.020
= 9.565 + .455
11 A
27.095
27.095
-

17.055 =
10.040 =
9.585
+ .455
9

Lafa rads
ob
Box 84 232 00 ARLOV
SWEDEN
Made Exclusively for Lafa Radio AB in
Japan
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