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C.  Check your coaxial cable routing (it may be pinched when routed 

into the car). 

D.  Try a different location on your car (keeping in mind the radiation 

pattern you wish) 

 

E.  Is the antenna perfectly vertical? 

 

F.  Try a different location in your neighborhood. Stay away from 

large metal objects when adjusting (metal telephone or light posts, 
fences, etc.). 

 

 

 
 
 
 

 

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. 

 

4.  RF GAIN CONTROL (outer dual concentric). 

Use to reduce the gain 

of the RF amplifier under strong signal conditions. 

 

The transceiver will operate into an SWR of 2 to 1 indefinitely
and sustain an SWR of 20:1 for a maximum of 5 minutes at rated
operating conditions. 

- 8 - 

- 7 - 

NOTE 

Содержание DX-55V

Страница 1: ...locate your problem Intermittent problems are easily overlooked so be sure to give as much detail as possible in your note Also please include your telephone number in case our technicians have any additional questions Do not send your power cord or microphone unless we ask for these items during our telephone conversation You are responsible for getting the radio safely to us We suggest using Uni...

Страница 2: ... Range 30 C to 50 C Microphone Plug in dynamic with push to talk switch and coiled cord Input Voltage 13 8V DC nominal 15 9V max 11 7V min Positive or negative ground Transmit AM full mod 2 2A Receiver Squelched 0 3A Maximum Audio output 0 7A Size 2 3 8 H x 7 7 8 W x 9 1 4 D Weight 5 Ibs Antenna Connector UHF SO239 Meter 3 in 1 Illuminated indicates relative output power received signal strength a...

Страница 3: ...ide a good 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 mounting bracket in the exact location desired If nothing will interfere with mounting it in the desired position remove the mounting bolts Before drilling the holes make sure nothing will inter...

Страница 4: ... has a steel hull Before installing the transceiver in a boat consult your dealer for information regarding an adequate grounding system and prevention of electrolysis between fittings in the hull and water TUNNING THE ANTENNA FOR OPTIMUM SWR Since there is such a wide variety of base and mobile antennas this section will strictly concern itself to the various types of mobile adjustable antennas B...

Страница 5: ... 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 clockw...

Страница 6: ... but when you set to PA position the transceiver acts as a public address amplifier Before operating PA you must first connect an external PA speaker 8 ohm more than 2W to the PA Speaker jack on the unit rear panel 12 NB NB OFF When the switch is placed in the NB position the RF noise blanker is activated The RF noise blanker is very effective for repetitive impulse noise such as ignition interfer...

Страница 7: ...s see next section ALTERNATE MICROPHONES AND INSTALLATION OPERATING PROCEDURE TO RECEIVE 1 Be sure that power source microphone and antenna are connected to the proper connectors before going to the next step 2 Turn unit on by tuning VOL control clockwise on your transceiver 3 Set the VOLUME for a comfortable listening level 4 Set the MODE switch to the desire mode 5 Listen to the background noise...

Страница 8: ...ore beginning the actual wiring read carefully the circuit and wiring information provided with the microphone you select Use the minimum head required in soldering the connections Keep the exposed wire lengths to a minimum to avoid shorting when the microphone plug is reassembled Fig 2 Microphone plug wiring 1 Remove the retaining screw 2 Unscrew the housing from the pin receptacle body 3 Loosen ...

Страница 9: ...rophone plug are complete push the knurled ring and the housing forward and screw the housing onto the threaded portion of the pin receptacle body Note the location of the screw clearance hole in the plug housing with respect to the threaded hole in the pin receptacle body When the housing is completely threaded into the pin receptacle body a final fraction of a turn either clockwise or counterclo...

Страница 10: ...MEMO MEMO 17 18 ...

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