Cherokee CM10 / +
Documentation Project

CBTricks.com
RECEIVER SECTION

TEST EQUIPMENT REQUIRED

a.

RF Signal Generator

b.

RF Power Meter

c.

Distortion Meter

d.

DC Power Supply

 

STEP

SETTING

CONNECTION

ADJUST

ADJUST FOR

1

RX sensitivity;
Mode: Receive
Volume: Fully clockwise
Squelch: Turn to counterclockwise
CH Selector:19
SSG: 27.185MHz,1KHz,
1uV(-107dBm) <AM> 30% MOD.

Connect RF signal generator to external ANT. jack. Connect SSVM,Sinadder and distortion meter across EXT-Speaker out jack with 8 ohm dummy load

T501 T502
T503 T504






T001

Adjust the parts of tuning circuitry with observing ADM (Automatic Dist. Meter)indicates 10db S/N in AM mode. and adjust output level of RF-SSG until speaker out level reaches about 500 miliwatt(2.0 Volt)

Adjust for Maximum indication ON SSVM

2

Squelch Adjustment;
Mode: Receive
Volume: 500mW(2.0V)
Squelch : TIGHT
CH Selector: 19
SSG: 27.185MHz. 1KHz
<Tight> 2.815uV(-47dBm)
30% MOD

Connect RF signal generator to external ANT. Jack. Connect RF power meter and distortion meter Across EXT-Speaker out jack with 8 ohm dummy load

VR501

At each mode adjust the point until the audio output appeared on oscilloscope.

3

Signal Meter Adjustment;
Mode: Receive
Volume: 500mW(2.0V)
Squelch: Turn to counterclockwise
CH Selector: 19
SSG: 27.185MHz, 1KHZ,
100uV(-67dBm) No MOD.

Connect RF signal generator to external ANT. Jack. Connect RF power meter and distortion meter across EXT-Speaker out jack with 8 ohm dummy load

VR301

Adjust So that the 9th LCD Bar display on the LCD

 


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Disclaimer: Although the greatest care has been taken while compiling these documents,

we cannot guarantee that the instructions will work on every radio presented.