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TABLE OF CONTENTS 

 

 Page 

Specification

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  

 

 

Installation 

 

 

 

Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  

 

 

Mounting the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . .  

 

 

Ignition Noise Interference . . . . . . . . . . . . . . . . . . . . .  

 

 

Antenna  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  

 

 

Tuning the Antenna for Optimum SWR . . . . . . . . . . .  

 

 

External Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  

 

 

Operation 

 

 

 

Control Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . .  

 

 

Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

 

 

Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

10 

 

 

Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

11 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
 
 
 
 
 
 
 

Specifications 

 

GENERAL 

 

Frequency Range 

28.315 ~ 28.755 MHz 

Channels 40 

CH 

Frequency Control 

Phase Lock Loop (PLL) synthesizer. 

Frequency Stability 

0.005% 

Temperature Range 

-30  to +55  

Input Voltage 

DC 13.8V  

Size 

2-3/8” (H) x 7-7/8” (W) x 9-1/4” (D). 

Weight 

5 Ibs. 8 oz. 

Antenna Impedance 

50 Ohms 

 

 

TRANSMITTER 

 

RF Power output 

10W. 

RF Transmit Modes 

AM/FM 

Antenna Connector 

UHF Type, 50 Ohms 

Audio Distortion 

10% 

Frequency Response 

450 to 2500Hz 

Spurious Emissions 

-50dB 

Microphone Dynamic 

 

 

RECEIVER 

 

Sensitivity for 10dB S+N/N 

AM 1.0uV 

Sensitivity for 20dB S+N/N 

FM 1.0uV 

Squelch Sensitivity 

0.5uV 

Image Rejection 

-60dB 

AGC Figure of Merit 

AM : 70dB for 50mV for 10dB 
Change in Audio Output 

Audio Distortion @ 3W 

10% 

 

 

 

 

 

 
 
 
 
 
 
 
 
 

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Summary of Contents for DX-73V

Page 1: ...ks on your radio to 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 tec...

Page 2: ...izer Frequency Stability 0 005 Temperature Range 30 to 55 Input Voltage DC 13 8V Size 2 3 8 H x 7 7 8 W x 9 1 4 D Weight 5 Ibs 8 oz Antenna Impedance 50 Ohms TRANSMITTER RF Power output 10W RF Transmi...

Page 3: ...CE Use of a mobile receiver at low signal levels is normally limited by the presence of electrical noise The primary source of noise in automobile installations is from the generator and ignition syst...

Page 4: ...l CH 40 and compare S W R readings They should be almost equal B Antennas which must be cut to proper length 1 Follow the same procedure as above but adjust the length by cutting in 1 8 increments unt...

Page 5: ...Squelch because even noise will be considered a signal and the cycling will stop This circuit is turned ON and OFF by pushing the MIC gain knob Please note that the LED under the channel display will...

Page 6: ...ch function This means you can go to any one of these three channels immediately or you can watch any one of these three channels with the Dual Watch feature This is our exclusive TRIPLE CHANNEL DUAL...

Page 7: ...and 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 SQUELC...

Page 8: ...MEMO MEMO 13 14...

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