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Regency® RH-606B (Relm®)
DISCLAIMER:
This document is for informational purposes ONLY! If you choose to follow the steps
outlined herein, you do so at your own risk. I cannot, nor will not, be
responsible for damage to equipment caused by modifications YOU make to the radio as a
result of your reading this document.
NOTES:
I am working on this conversion...
All I can tell you now is how to program this radio. These do not require a PC, "Suitcase" or other additional hardware to program, they are truly 'field programmable'! There will be approximately 26 capacitors which will need to be changed to make this radio a "A" model. I'll post the parts locator and values as soon as I figure them out.
The RH-606 is a 60 Watt radio (FCC type accepted for 75 Watt maximum). This radio is not 'wide band' unless it has been modified. It has a bandwidth of only 3MHz without modification, can be 5 to 8 MHz after modification. The "B" split radio is 150-162MHz, "C" split radio (RH-606C) is 162-174MHz.
Per the Service Manual, the major difference between the "A" and "B" split radios is the value of around 20 capacitors and resistors. I am working on the 'swap list' to bring this radio down into the Amateur 2 Meter band.
E-Mail: [email protected]
PROGRAMMING INSTRUCTIONS:
Regency® RH-606 programming instructions. 3/11/99 sjc
Programming:
1. Open top of radio and locate the microprocessor (40 pin IC). Approximately 1/2 inch in front of microprocessor is a cut jumper labeled J-401.
2. Short J-401 and turn the radio on.
Note: I soldered thin wires to
this jumper and put a small momentary (normally open) push button switch through the side
of the case near
the rear so I can reporgram it later without re-opening the case. Just push the
added switch while turning the radio on and...
3. Press the "PROG/PRI" key then the "10" key. The display will go blank.
Programming note: Use the "10" key any time you need to enter a ZERO.
Simplex:
1. Enter the 6 digit frequency followed by ZERO ZERO ("10" key twice).
2. Enter the 2 digit CTCSS code (affects both TX and RX).
3. Press the "Enter" key, then the channel number.
4. In a few seconds the display will flash then go blank.
5. Repeat for the next desired channel if necessary.
Repeater Splits:
1. Enter the 6 digit receive frequency followed by EIGHT ZERO (remember ZERO is the "10" key).
2. Enter the 2 digit CTCSS code for receive.
3. Enter the 2 digit CTCSS code for transmit.
4. Enter the 6 digit frequency for the transmit frequency and
5. Press the "Enter" key, then the channel number.
6. In a few seconds the display will flash then go blank.
7. Repeat for the next desired channel if necessary.
Receive only frequencies:
1. Enter the 6 digit receive frequency followed by ZERO FOUR (remember ZERO is the "10" key).
2. Enter the 2 digit receive CTCSS code (or ZERO ZERO for no receive tone).
3. The "Enter" key, then the channel number.
4. In a few seconds the display will flash then go blank.
5. Repeat for the next desired channel if necessary.
Here is the the Regency/Relm CTCSS to two digit code cross reference table.
Retune the radio per procedure in the Service Manual.
The Service Manual is $25.00 plus shipping and can be ordered from Ten Four Communications at 1303 Walsh Drive, Round Rock TX 78681. My contact was Stacey. Their phone number is 1-800-487-9576. The publication number for the RH-606B is 03004399000.
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Copyright © 1999, 2004, Sterrett J. Carter
Last revised 07 May, 2004