BC3 and 75-822 CB? - BMW Luxury Touring Community
 
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post #1 of 6 Old Nov 25th, 2010, 9:39 am Thread Starter
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BC3 and 75-822 CB?

Just finished doing the rear main seal, slave cylinder repair on the k1200lt I purchased last year. I would like to add cb, as the group I ride with all use cb's, it is a mixed bag of riders.
Anyway, the bike has the J&M comm system. I was wondering if the Midland 75-822 can be hooked up to the comm system?
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post #2 of 6 Old Nov 25th, 2010, 11:17 am
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Re: BC3 and 75-822 CB?

Gosh... Its been so long since I have dabbled in the comsystem its actually hard to recall... That said, if you have the BC3 as you state I would call up J&M to see if they make or know of an adapter. I think the OEM was a 820, but not certain. Under the stingray there are connections for a CB on the BC3 system. Figuring the pins out would be a trail and error issue. There may be schem's in the forum somewhere that could help. I however would go through the PS2 connection in the front as it would be easier to hunt and peck out the connections....

Hoss
'Stupidity has a knack of getting its way.' --Albert Camus
'05- K1200LT - Gretchen
R.I.P. - '00- K1200LTE- "Barbara" - Retired at 168K 9/2011
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post #3 of 6 Old Nov 25th, 2010, 1:33 pm
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Re: BC3 and 75-822 CB?

I think the original was a 75-830. Mine was OEM and didn't receive or transmit, even the weather band. I now have the 822 installed. BUT, I used some redneck engineering and used the wiring harness from the old 830. I can now hear CB but have had a real hard time getting it to transmit using the headsets and the already installed PTT. Now here's the odd part. If I use the PTT on the CB itself, all is fine.

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post #4 of 6 Old Nov 25th, 2010, 4:47 pm Thread Starter
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Re: BC3 and 75-822 CB?

Thanks for taking the time to reply. I will give J&M a call tomorrow and see what they have to say. Should I post this on the main forum so see if anyone has any ideas?

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Honda 450 - gone
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2001 HD Dyna - gone
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2002 HD Ultra Classic
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post #5 of 6 Old Nov 26th, 2010, 7:32 pm
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Re: BC3 and 75-822 CB?

Sounds all too familiar. I had the same problems trying to get my Icom plumbed to the BC3. I ended up crossing over a wire on the mic side to make mine work. Sad to say now, but when I got the BC3 (not original to the bike) she had the CB all plumbed up. I sold the patch cord and like a stupid arse, i did not work out a wiring schematic...for future reference... never thought I would need or want a CB...

Hoss
'Stupidity has a knack of getting its way.' --Albert Camus
'05- K1200LT - Gretchen
R.I.P. - '00- K1200LTE- "Barbara" - Retired at 168K 9/2011
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post #6 of 6 Old Nov 27th, 2010, 8:44 am
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Re: BC3 and 75-822 CB?

My Midland 822 works like a champ using an automotive adapter in place of the battery pack. The wiring under the stingray is all there, but the thing is, you've got to make sure you've got the thing grounded properly for it to work well. There are/were grounding strap(s) that didn't originally come with the kit that were later included that fixed most problems.

If you can't find the kit with the straps, it's easy enough to make your own. Trick is to ground to the antenna mount to about three other places on the frame under the seat with a suitable wire harness. The supplied kit used a shrink wrap insulated braided 3/8" flat harness with soldered round connectors. You can also make your own push to talk switches/harness and save yourself some money. Got mine at Radio Shack..

BTW, I believe originally the Midland 75 820 and 75 822 were marketed separately with the 822 being the one that came with an automotive harness. They are the same radio. The 830 mentioned above was the 2nd iteration of the CB offered on 2002/2003 models I think.
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