| Author |
Message |
    
Cprstn54
New member
Username: Cprstn54
Post Number: 3
Registered: 1-2005
| | Posted on Wednesday, February 08, 2006 - 3:58 pm: | 
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Anyone have a schematic for this? Wiring info by color? What the two pots inside are for? |
Alsworld
Advanced Member
Username: Alsworld
Post Number: 981
Registered: 1-2002
| | Posted on Wednesday, February 08, 2006 - 8:59 pm: |
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1. Audio Yellow
2. Ground Shield
3. Receive (RX)Black
4. Transmit(TX)Blue
Wiring for a type P4
1. Ground Shield
2. Audio Yellow
3. TX Blue
4. RX Black
Wiring for a type P6
1. Audio Yellow
2. RX Black
3. TX Blue
4. Common White
5. Ground Shield
6. VCC Red
Not sure on the pots but usually one is to adjust/change echo, the other for loudness.
Hope this helps.
Alsworld |
Cprstn54
New member
Username: Cprstn54
Post Number: 4
Registered: 1-2005
| | Posted on Friday, February 10, 2006 - 12:52 pm: |
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Thanks Alsworld.
That did the job.
I do have one more question. The conductor you call "Receive (RX)" I have also seen named "Receive control." I have tested the black wire on this mic and it is definitely not an audio-in (like for a speaker-mic), or at least there is no activated speaker inside this mic. What is it supposed to do, where it is enabled? It shows 6 ohms to ground on this mic.
Ken C
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Alsworld
Advanced Member
Username: Alsworld
Post Number: 984
Registered: 1-2002
| | Posted on Friday, February 10, 2006 - 10:55 pm: |
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Many CB radios need to have a microphone plugged in to receive a signal. I have an older Uniden that as soon as you unplug the microphone, all radio receive (RX) is lost. Then again, I have radios that I can listen to forever without a microphone plugged into the radio. It all depends on the radio and manufacture, but this is not uncommon for CB. Try your radio out just for curiosity by unplugging the mic and seeing if the receive goes away. Some do, some don't. But microphone wiring affects some.
You are correct about the TX/RX microphones. Few (if any) CB mics have receive like some of the business/law enforcement radios have.
I know we just received some ICOM radios at my work we had built for our forward deployed desert operating base. They were basically a handheld marine VHF, but with specialized frequencies compatible to where we operate, safe around ordnance (bombs and missles), and could withstand the desert sand, humidity, heat and cold. Nice radios no doubt but ICOM spared us no cost, and we get the government rate! Those mics have the TX and RX capabilities.
I cannot answer your question specifically on where the RX is enabled, I just don't know to be honest.
Glad to hear the wiring worked for you. The forum strikes another success story!
Alsworld |
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