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Topic: Is this for power antenna?

in Forum: C3 Electrical


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Is this for power antenna? (1/11)
 10/5/20 8:46pm
TTJR 81
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Bay City, MI - USA

Vette(s):
1981 white coupe, red interior, also had a 1971 , 1985, 2011 and 2015


Joined: 9/29/2020
Posts: 28

Was looking in the back compartments on my 81 and found the CCM in battery compartment, then looked in the larger one and see the jack and this part. I have a CB radio and the antenna does not go up or down, is this part that controls it?  Thanks so much. 

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Re: Is this for power antenna? (2/11)
 10/6/20 7:12am
Adams' AppleLifetime Member
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Duncanville, TX - USA

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#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas


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Could be.... I'm not familiar enough with the '81 to say for sure. I do have the '81 Service Manual, and I can look this evening to see, if no-one else responds.



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Joel Adams
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Re: Is this for power antenna? (3/11)
 10/6/20 8:23am
TTJR 81
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Bay City, MI - USA

Vette(s):
1981 white coupe, red interior, also had a 1971 , 1985, 2011 and 2015


Joined: 9/29/2020
Posts: 28

Sounds good, thank you!  ordered my service manual but not here yet

Re: Is this for power antenna? (4/11)
 10/6/20 11:44am
TTJR 81
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Bay City, MI - USA

Vette(s):
1981 white coupe, red interior, also had a 1971 , 1985, 2011 and 2015


Joined: 9/29/2020
Posts: 28

took a picture this morning , looks like maybe the one item goes in the open black bracket, will see on the other plug?

Re: Is this for power antenna? (5/11)
 10/6/20 5:12pm
Reds82CELifetime Member
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McKinney, TX - USA

Vette(s):
1982 Collector Edition, Silver-Beige metallic, 40000 miles and counting. 2015 Z51 Red Convertible


Joined: 4/8/2005
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This is a pic of my 82.  the open black box is where my "Pulse Wiper Controller" is.  I had to replace it last year.  What you have is indeed the Power antenna relay (page 8A-63 in the 82 shop manual)



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Re: Is this for power antenna? (6/11)
 10/6/20 9:23pm
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas


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Thanks Kerry! I haven't had time to look in the manual yet...



|UPDATED|10/6/2020 6:23:25 PM (AZT)|/UPDATED|


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Joel Adams
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Re: Is this for power antenna? (7/11)
 10/6/20 10:35pm
TTJR 81
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Bay City, MI - USA

Vette(s):
1981 white coupe, red interior, also had a 1971 , 1985, 2011 and 2015


Joined: 9/29/2020
Posts: 28

Thanks guys for the investigative work! Wonder if the relay is bad and thats why its not working? Also, the other plug next to it, should it be plugged in?

Re: Is this for power antenna? (8/11)
 10/7/20 7:13am
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Duncanville, TX - USA

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#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas


Joined: 11/8/2003
Posts: 20126

The Service manual shows the white relay in your pic is the antennae relay, and the part that you have hanging nekkid is the pulse wiper module. The extra connector you show should plug into the empty connector on the relay. It's possible the antennae runs all the time, and that's why it has been unplugged....just guessing, but that's the likely answer.



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Joel Adams
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             NCRS

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Re: Is this for power antenna? (9/11)
 10/7/20 8:08am
TTJR 81
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Bay City, MI - USA

Vette(s):
1981 white coupe, red interior, also had a 1971 , 1985, 2011 and 2015


Joined: 9/29/2020
Posts: 28

Will plug in and see, thanks again Joel! My service manual is on the way

Re: Is this for power antenna? (10/11)
 10/7/20 9:02am
TTJR 81
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Bay City, MI - USA

Vette(s):
1981 white coupe, red interior, also had a 1971 , 1985, 2011 and 2015


Joined: 9/29/2020
Posts: 28

Thats what it happened, plug in and it runs non stop. Next question, can the unit be repaired ? I see aftermarket does not make one for CB

Re: Is this for power antenna? (11/11)
 10/7/20 11:54am
Reds82CELifetime Member
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McKinney, TX - USA

Vette(s):
1982 Collector Edition, Silver-Beige metallic, 40000 miles and counting. 2015 Z51 Red Convertible


Joined: 4/8/2005
Posts: 249

Yes, you can purchase the rebuild kit and fix this problem..... however.... I have had the same problem with my power antenna (non CB) and have repaired twice.  The internal cable that pushes up the mast and pulls it back down is probably broken, so when the motor is pushing up the antenna it never gets the "resistance" when fully extended to shut off the motor.  Over the years I have found the repair to last anywhere from 1 to 2 years.  After the last failure I just replaced the entire unit.  There are also several UTUBE's on this repair.

Your CB antenna replacement use to be available but is now discontinued however you may be able to find one 



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