Cobra Electronics 25 LX Manuel Du Propriétaire

GENERAL
CHANNELS 

CB - 40 CH 

FREQUENCY RANGE 

CB - 26.965 TO 27.405 MHZ 

FREQUENCY TOLERANCE 

0.005 %

FREQUENCY CONTROL  

PLL (PHASE LOCK LOOP) SYNTHESIZER

OPERATING TEMPERATURE 
RANGE 

-30° C TO + 50° C

MICROPHONE 

Plug-in dynamic

INPUT VOLTAGE  

 13.2VDC nom. (positive or negative ground) 

Current Drain 

Transmit: AM full mod., 1.5A (maximum)  

  

Receive: Squelched, 0.3A;  

  

full audio output, 1.2A (nominal)

Size   ..............................................................8-5/8” D x 6-3/8” W x 2-3/16” H
Weight ..........................................................4 lbs.
Antenna Connector .................................UHF; SO-239
Meter .............................................................Indicates relative
  

power output received  

  

signal strength 

TRANSMITTER
Power Output ............................................4 watts
Modulation .................................................AM (Amplitude Modulation)
Frequency Response ...............................300 to 3000 Hz
Output Impedance ..................................50 ohms, unbalanced

RECEIVER
Sensitivity ....................................................Less than 1  µV for 10 dB (S+N) /N
Selectivity ....................................................6 dB @ 7 KHz, 60 dB @ 10KHz
Image Rejection ........................................80 dB, typical
Adjacent-Channel Rejection ................60 dB, typical
IF Frequencies ...........................................Double Conversion: 1st: 10.695 MHz 
  

2nd: 455 KHz

Automatic Gain Control (AGC) ............Less than 10 dB change in audio
  

output for inputs from 10 to 50,000  

  

microvolts

RF Gain range ............................................40 db
Noise Blanker .............................................RF type
Squelch ........................................................Adjustable; threshold less than 1µV
Audio Output Power ...............................4 watts
Frequency Response ...............................300 to 3000 Hz
Distortion ....................................................Less than 7% @3 watts @ 1000 Hz
Built-in Speaker .........................................8 ohms, 5w
External Speaker (Not supplied)............ 8 ohms; disables internal speaker 
  

when connected

PA SYSTEM
Power Output ............................................4 watts into external speaker
External Speaker for PA..........................8 ohms 4 Watts min. 
(Not Supplied) ...........................................the PA speaker also monitors the
  

receiver; separate jack provided

(SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE)

The Cobra 25 LX transceiver represents one of the 
most ad vanced AM two-way radios used as a Class 
D station in the Citizens Radio Service. This unit 
features advanced Phase Lock Loop (PLL) circuitry 
providing complete cov er age of all 40 CB chan nels.

 

1  

26.965  21 

27.215 

2  

26.975  22 

27.225 

3  

26.985  23 

27.255 

4  

27.005  24 

27.235 

5  

27.015  25 

27.245 

 

 

   

6  

27.025  26 

27.265 

7  

27.035  27 

27.275 

8  

27.055  28 

27.285 

9  

27.065  25 

27.255 

10  

27.075  30 

27.305

11  

27.085  31 

27.315

12  

27.105  32 

27.325

13  

27.115  33 

27.335

14  

27.125  34 

27.345

15  

27.135  35 

27.355

16  

27.155  36 

27.365

17  

27.165  37 

27.375

18  

27.175  38 

27.385

19  

27.185  39 

27.395

20  

27.205  40 

27.405

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11/15/11   9:43 AM