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EXTERNAL SPEAKER 

The external speaker jack (EXT.SPK) on the rear panel is used for remote 

receiver monitoring. The external speaker should have 8 ohms impedance and be 
able to handle at least 4 watts. When the external speaker is plugged in, the internal 
speaker is disconnected. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

Operation 

 

CONTROL FUNCTIONS 

There are thirteen controls and three indicators on the front panel of your 

transceiver. 

 

FRONT PANEL 

 

1.  OFF/ON/VOLUME (inner dual concentric). 

Turn clockwise to apply power 

to the unit and to set the desired listening level. During normal operation, the 
VOLUME control is used to adjust the output level obtained either at the 
transceiver speaker or the external speaker, if used. 

 
2.  SQUELCH (outer dual concentric). 

This  control is used to cut off or 

eliminate receiver background noise in the absence of an incoming signal. For 
maximum receiver sensitivity it is desired that the control be adjusted only to 
the point where the receiver background noise or ambient backgrounds noise is 
eliminated. Turn fully counterclockwise then slowly clockwise until the 
receiver noise disappears. Any signal to be received must now be slightly 
stronger than the average received noise. Further clockwise rotation will 
increase the threshold level, which a signal must overcome in order to be 
heard. Only strong signals will be heard at a maximum clockwise setting.   

 

3.  MIC GAIN (inner dual concentric).

 Adjust the microphone gain in the 

transmit and PA modes. This controls the gain to the extent that full talk power 
is available several inches away from the microphone. 

 
 
 

- 8 - 

- 7 - 

15

POWER

RX/TX

BAND

D/A E/B F/C

MED

MIC      RF

VOL     SQ

OFF

AM

FM

PA

HI

LO

NB/ANL

OFF

LO

HI

OFF

ECHO

BAND

9+30dB

PWR

5 7

TX 

3

1

SIG

ECHO

TIME

1 2

3 4

5

6

7

8

9

10

11

12

13

14

16

Summary of Contents for DX-33HP

Page 1: ...p www cbtricks com Printed In Malaysia AT1148010H DX 33HP 10 Meter Amateur Mobile Transceiver OWNER S MANUAL POWER RX TX BAND D A E B F C MED MIC RF VOL SQ OFF AM FM PA HI LO NB ANL OFF LO HI OFF ECHO...

Page 2: ...ophone Plug in dynamic with push to talk switch and coiled cord Input Voltage Current 13 8V DC nominal 15 9V max 11 7V min Positive or negative ground Transmit AM FM Hi Power _ 10A Receiver Squelched...

Page 3: ...ood electrical connection to the chassis of the vehicle Proceed as follows to mount the transceiver 1 After you have determined the most convenient location in your vehicle hold the transceiver with m...

Page 4: ...irection of the body of the vehicle For all practical purpose however the radiation pattern is nondirectional The slight directional characteristic will be observed only at extreme distance A standard...

Page 5: ...ver background noise in the absence of an incoming signal For maximum receiver sensitivity it is desired that the control be adjusted only to the point where the receiver background noise or ambient b...

Page 6: ...witch is placed in the ANL NB position the RF Noise Blanker is also activated The RF Noise Blanker is very effective for repetitive impulse noise such as ignition interference 13 BAND SWITCH HI LOW Th...

Page 7: ...gain OPERATING PROCEDURE TO TRANSMIT 1 Select the desired channel of transmission 2 Set the MIC GAIN control fully clockwise 3 If the channel is clear depress the push to talk switch on the microphon...

Page 8: ...the microphone jack is used to hold the pin receptacle during the soldering operation best results are obtained when the connections to pins 1 and 3 are made first and then the connections to pins 2...

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