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REAR PANEL 

 

 

 
17. POWER. 

Accepts 13.8V DC power cable with built-in fuse (4 amp.) to 

be connected. 

 
18. EXT SP. 

Accepts 4 to 8 ohms, 5 watt external speaker to be connected. 

When external speaker is connected to this jack, the built-in speaker is 
automatically disconnected. 

 

19. PA. SP.

 Used to connect a PA speaker (8 ohm 4W) for PA operation. 

Before operating PA you must first connect a PA speaker to this jack. 

 

20. ANTENNA.

 Accepts 50 ohm coaxial cable with a type PL-259 plug to 

be connected. 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

PRESS-TO-TALK MICROPHONE 

 

The receiver and transmitter are controlled by the press-to-talk switch on the 
microphone. Press the switch and the transmitter is activated, release switch 
to receive. When transmitting, hold the microphone two inches from the 
mouth and speak clearly in a normal “voice”. The radios come complete with 
low-impedance (500 ohm) dynamic microphone. For installation instruction 
on other microphones, 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 from the speaker. Turn the 

SQUELCH

 

control slowly clockwise until the noise 

JUST

 disappears (no signal 

should be present). Leave the control at this setting. The 

SQUELCH

 is 

now properly adjusted. The receive will remain quiet until a signal is 
actually received. Do not advance the control too far, or some of the 
weaker signals will not be heard. 

 

6. Set 

CHANNEL

 selector switch to the desired channel. 

 

7. Set 

the 

RF

 gain control fully clockwise for maximum 

RF

 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 microphone 

and speak in a normal voice. 

 
 
 
 
 
 
 
 
 
 
 

- 11 - 

- 12 - 

Summary of Contents for DX-55V

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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 ...

Page 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...

Page 10: ...MEMO MEMO 17 18 ...

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