Maxon CM10 User Manual
User Manual CM10
Contents
Specification………………………………………………………………………………………………………………………3
Control and Operation ……………....……………………………………………………………………………………4-5
Installation …………………………………………………………………………………………………………………………6
Installation of Main Unit ………………………………………………………………………………………………………6
Installation of Antenna ……………………………………………………………………………………………………….6
Operational Test …………………………………………………………………………………………………………………7
Frequency Bands Table ………………………………………………………………………………………………………7
Frequency Band Selection ……………………………………………………………………………………………………7
Reset ………………………………………………………………………………………………………………………………..8
Table of Restrictions …………………………………………………………………………………………………………..9
Updated Information on National Restrictions ……………………………………………………………………..10
Diagrams ………………………………………..………………………………………………………………………....11-13
Decleration of Conformity ………………………………………………………………………………..………………..14
User Statement ……………………………………………………………………………………………………..…………15
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User Manual CM10
Specification
GENERAL
Channels…………………………………………………..……...……………………………......…. 40 Ch AM/FM 4W
Frequency Range………………………………...………………………………………..….26.565 to 27.99125 MHz
Frequency Control……………………………………………………..……………………………………………….……PLL
Operating Temperature Range……………………..…………………………………………..…….….-10° / +55°C
DC Input Voltage…………………………...…………………...…………………………………….…13.2 V DC ±15%
Size………………………………………….………………………………………...…….180(L) X 35(H) X 140(D) mm
Weight…………………………………………………………...……………………………………………………..……750 g
RECEIVER
Receiving System……………………………………………...…………...….Dual Conversion Super Heterodyne
st
Intermediate Frequency…………………………………………………….1
Sensitivity………………………………………………….………...………….0.5 μV for 20 db SINAD in FM mode
Audio Distortion………………………………………………………………..……………....Less Than 8% @ 1 KHz
Image Rejection…………………………….………………….………………………………………………………...65 dB
Adjacent Channel Rejection……………………………………..………………………………………………..….65 dB
Signal/ Noise Ratio……………………………………………………..………………………………………………..45 dB
Current Drain at standby………………………………………….…………………………………………….....150 mA
Current Drain at maximum audio…………………………………………………..………………………......820 mA
TRANSMITTER
Output Power…………………………………………………………………………………..……...….4W @ 13.2 V DC
Modulation…………………………………………………………………………………...………FM: 1.8 KHz ±0.2 KHz
Frequency response…………………………………………………………………………...From 400 Hz to 2.5 KHz
Output impedance………………………………………………………….…..…………………RF 50 ohm Unbalance
Signal/ Noise Ratio……………………………………………………….………………………………………..40 dB MIN
IF: 10.695 MHz, 2nd IF: 455 MHZ
Current Drain…………………………………………………………………………………………………….…….1100 mA
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User Manual CM10
Control & Operation
Front Panel
1. AM/FM Selector
This key allows the user to select the AM or FM operating mode in both RX and TX. The AM/FM
operating mode selection is possible only if it is enabled on the programmed frequency band.
2. CH9/CH19 Selector
This key allows quick access to one of the two pre-programmed emergency channels (CH9 and
CH19). Each time this key is pressed, the radio will select CH9, then CH19, then again the normal
operating channel. When one of the emergency channels is selected, EMG will appear on the LED
display. The operating mode (AM or FM) for the emergency channels is factory pre-programmed.
3. TX Indicator
This red LED indicator lights up when the radio is in transmit mode.
4. FM Indicator
This green LED indicator lights up when the radio is in FM mode.
5. LED Display
The large two-digit LED display indicates the operating channel and the programmed frequency
band code.
6. DN (Down) Key
This key allows selection of the operating channel in decrements. By keeping this key pressed,
the quick channel selection mode will be enabled.
7. UP (Up) Key
This key allows the selection of the operating channel in increments. By keeping this key pressed,
the quick channel selection mode will be enabled.
8. SQUELCH Control
The SQUELCH control allows the operator to silence the radio, blocking the background noise,
when no signals are received on the operating channel. Turn the SQUELCH knob clockwise until
the background noise stops. Turn the SQUELCH knob counterclockwise (SQUELCH opening) to
listen to the weakest signals. If this switch is turned off the Automatic Squlech Control will be
activated.
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User Manual CM10
9. OFF / VOLUME Control
Use this knob to switch the radio ON and OFF, as well as to adjust the receiver volume to the
desired level. To adjust the receiver volume (if no signals are received on the operating channel),
open the SQUELCH and then adjust the receiver volume using the background noise as a
reference.
10. Microphone Connector
Insert the microphone lead to this connector and turn the connector ring in a clockwise to lock it.
Rear
11. EXT (External) Speaker Jack
This jack is for connecting an (optional) external speaker.
12. ANTENNA Connector
Please refer to the section ANTENNA INSTALLATION (page 6).
13. 13.2VDC POWER CORD
Microphone
14. PTT (Push-to-Talk) Key
Transmitter key, press the PTT key to transmit and release to return to receive mode.
15. MICROPHONE Plug
The 4-pin microphone connector (with locking ring), this connects the handset to the microphone
connector on the front panel of the radio.
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