background image

 

 

 

 

5. The wires must now be soldered to the pins as indicated in the above 

wiring tables. If a vise or clamping tool is available it should be used to 
hold the pin receptacle body during the soldering operation, so that both 
hands are free to perform the soldering. If a vise or clamping tool is not 
available, the pin receptacle body can be held in a stationary position by 
inserting it into the microphone jack on the front panel. The numbers of 
the microphone plug are shown in Fig. 3, as viewed from the back of the 
plug. Before soldering the wire to the pins, pre-tin the wire receptacle of 
each pin of the plug. 

 

 

 

Fig. 3

 Microphone plug pin numbers viewed from rear of pin receptacle. 

 
6. Be sure that the housing and the knurled ring of Figure 2 are pushed back 

onto the microphone cable before starting to solder. If the washer is not 
captive to the pin receptacle body, make sure that it is placed on the 
threaded portion of the pin receptacle body before soldering. 

 
7. If the microphone jack is used to hold the pin receptacle during soldering 

operation, best results are obtained when the connections to pin 1 and 3 
are made first and then the connections to pins 2 and 4. Use a minimum 
amount of soldering and be careful to prevent excessive solder 
accumulation on pins, which could cause a short between the pin and the 
microphone plug housing. 

 
8. When all soldering connections to the pins of the microphone are 

completed, 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 counterclockwise may be required to align the screw 
hole with the threaded hole in the pin receptacle body. When these are 
aligned, the retaining screw is then screwed into place to secure the 
housing to the pin receptacle body. 

 

 

9. The two cable clamp retainer screws should now be tightened to secure the 

housing to the microphone cord. If the cutting directions have been 
carefully followed, the cable clamp should secure to the insulation jacket 
of the microphone cable. 

 
10. Upon completion of the microphone plug wiring, connect and secure the 

microphone plug in the transceiver. 

 

MAINTENANCE AND ADJUSTMENT

 

 
This transceiver is specifically designed for the environment encountered in 
base installations. The use of all solid state circuitry and its light weight 
result in high reliability. Should a failure occur, however, replace parts only 
with identical parts. Do not substitute. 
 
 

 

NOTE 

If the performance described in the OPERATION and 
MAINTENANCE AND ADJUSTMENT sections is not obtained, 
review the operating instructions to insure that proper procedures 
were followed. 

 

 
 

 

FCC WARNING 

All transmitter adjustments other than those provided on front 
panel by the manufacturer must be made by or under the 
supervision of the holder of an FCC – issued general radio 
telephone operator’s license. 

 

 
 
 
 
 
 
 
 
 
 
 
 
 

 

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- 17 - 

Summary of Contents for DX 2547

Page 1: ...LSB CLARIFIER CLARIFIER NB AM SSB Base Station CB Radio OFF DIM TONE SWR MIC MIC RF PHONES OFF RF POWER PA R B PWR MOD DX 2547 RX TX USB LSB AM SWR ALERT ANL GNF 40 1 5 TALKBACK POWER 1 PWR MOD SWR 1...

Page 2: ...ge 26 965 27 405 MHz Emission AM USB LSB Frequency Control Phase Lock loop PLL Synthesizer Frequency Tolerance 0 005 Frequency Stability 0 003 Temperature Range 30 C to 50 C Antenna Impedance 50 Ohms...

Page 3: ...e from these sources Consult your dealer or professional amateur radio supplier Even though the transceiver has ANL and NB controls in some installation ignition interference may be high enough to mak...

Page 4: ...rating the PA at high output levels CHAPTER 3 OPERATION CONTROL FUNCTIONS FRONT PANEL 1 PHONE JACK Used to connect headphones for listening 2 MICROPHONE JACK Used to connect microphone for voice sourc...

Page 5: ...filter is activated it does not have much effect on the signal to noise of strong signals 15 CLARIFIER OFF SWITCH Pushing this switch turns the Clarifier on and off 16 CLARIFIER CONTROL Allows tuning...

Page 6: ...lacement 3 DC POWER This accepts 13 8V DC power cable with built in 7A fuse The power cord provided with the radio has a black and red wire The black goes to negative and red goes to positive 4 AC DC...

Page 7: ...iver comes complete with a low impedance dynamic microphone B PROCEDURE TO RECEIVE 1 Be sure that power source microphone and antenna are connected to the proper connectors before going to the next st...

Page 8: ...in the LSB mode the transmitter s output frequency is decreased The result in listening to the receiver is that when the MODE switch is in the proper position either USB or LSB a true reproduction of...

Page 9: ...used is provided with precut leads they must be revised as follows 1 Cut leads so that they extend 7 16 beyond the plastic insulating jacket of the microphone cable 2 All leads should be cut to the s...

Page 10: ...ng 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 hol...

Page 11: ...r home 7 Make friends for you as you travel 8 Provide local information to find your destination 9 Help law enforcement officers by reporting drunk and reckless drivers USE CHANNEL 9 FOR EMERGENCY MES...

Page 12: ...rtant because it will help the technician who works 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 ple...

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