| Author |
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Meatball
| | Posted on Thursday, June 06, 2002 - 1:07 am: | 
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CAN ANY ONE TELL ME WHAT THE RC AND A CHANNELS ARE ON THE DIAL OF A BROWNING MARK III CB RADIO ????? |
Meatball
| | Posted on Wednesday, June 19, 2002 - 5:51 pm: |
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what is the proper way to hook up a glen vfo to a browning mark III ????
THANK YOU
TIM |
Meatball
| | Posted on Thursday, June 20, 2002 - 7:14 am: |
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what is the proper way to hook up a glen vfo to a browning mark III ????
THANKS TIM |
Meatball
| | Posted on Friday, July 26, 2002 - 10:22 am: |
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WHAT IS THE PROPER WAY TO HOOK UP A GLEN VFO TO A BROWNING MARK III |
2600
| | Posted on Saturday, July 27, 2002 - 1:40 am: |
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Well, for starters the 'RC' channels between 3/4, 7/8, 11/12, 15/19 are set aside for radio control toys, garage door openers, etc. Before 1977, there were only 23 voice channels, and between channels 22 and 23 there were TWO RC channels. When the VOICE channels were expanded from 23 to 40, the first 5 'RC' channels were still 'left out' of the voice radios, but the two between 22 and 23 became the new channels 24 and 25 (yep, they are just BELOW the frequency for channel 23). The ones sometimes marked '23A and 23B' are now channels 26 and 27. Since voice radios don't cover the 5 RC channels between 3 and 20, they are popular when the skip is heavy. The "+10 kHz" switch on an export radio is included to let you cover these, since this 'skip the RC channels' pattern is built into the channel switch on every band, not just CB channels 1-40. When you click the "+10" switch on channels 3, 7, 11, 15 or 19, you land on an 'RC' that the legal radios just click past. Not very legal, but you knew that, right?
I'm assuming you have the SSB version of the Mark III transmitter, the same size as the receiver. They made a smaller AM-ONLY version of the Mark III transmitter, but they didn't sell very many of them. The AM-only version is MUCH trickier to put a slider onto. The SSB transmitter (same size as the receiver cabinet) is by far the more common one.
Hooking up a Glenn slider the simple way requires a 2-foot long shielded cable with an RCA (phono) plug on one end, matching the socket on the rear of the slider. The other end gets a 4-inch long insulated wire (# 22 or so insulated stranded wire works well) soldered to the ground braid, and the center conductor gets 1/4" stripped and tinned. Pull whichever crystal you don't need (or want) out of its socket on the channel selector (channel 9 is a popular choice). The switch lug for the crystal you just pulled has a small hole adjacent to the inner pin of the two the crystal came out of. Solder the center wire of the cable to that. Fish the ground wire into the grommet in the chassis deck just below the channel selector, the one the yellow wire (from the channel switch) goes through. Under the chassis near this grommet is a ground lug. Solder your ground wire here. Doing it this way may or may not provide enough drive from the Glenn to the transmitter, but NEVER solder to the pin contacts that the crystal came out of. NEITHER ONE of the crystal pins is grounded in this radio. Connecting the coax ground to one of these will throw all the crystals off frequency, and will disable the "VFO" (clarifier) knob, making it act as if you had turned it all the way left. I have a picture of the channel-switch connection at http://my.core.com/~nomad/ChannelSW.jpg
The Glenn slider was built to drive ANY solid-state radio, but has ALMOST enough drive for a tube radio. Glenn sold a 'buffer' accessory to take up the slack on a tube radio, but he has been out of business for a long time. I have a batch of prototype 'buffers' made to fit the Mark III SSB transmitter, but the installation instructions are not ready for prime time. Odds are they will go up on EBAY when the directions are ready.
If you make the slider cord for the Glenn too long, it will REALLY reduce the transmitter power. Two feet may sound short, but it works better than a long one.
One more detail. Flip the "standby" switch on the Glenn down. The digits should read 10.695. If they don't, the slider has not been properly preset to match the Browning SSB transmitter.
Doing that is a whole 'nother can of worms for a different day.
73,
2600 |
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