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Old 01-21-2016, 02:07 PM   #1
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Seneca radio antenna

Has anyone put a longer (taller) antenna on the drivers door mirror to improve AM/FM radio reception? Would a regular CB radio antenna work? They are available in longer lengths. Thanks for any information on this subject.
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Old 01-21-2016, 02:13 PM   #2
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The length of an antenna is a function of the frequency of the signal you are trying to capture.


A longer antenna will, generally, not improve radio reception.


Getting the correct antenna higher will allow receiving signals from further away.
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Old 01-22-2016, 03:56 AM   #3
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It does both

The Seneca antenna uses a duplexer and provides antenna to the CB as well as the AM/FM radio. I think that changing that to another may affect the AM/FM, but have not tested it. Good question since the CB antenna side of this antenna is no that good.
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Old 01-22-2016, 05:04 AM   #4
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It would be nice to have a good AM/FM radio on one mirror and a good CB antenna on the other. And they be quality, but matched size. I think this can be done, but haven't pursued it, much, yet. Maybe this thread will be the start. Those with knowledge, please chime in.
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Old 01-22-2016, 07:34 PM   #5
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I changed mine for one that's about 6 inches longer and regret it.

The antenna now occasionally whips in the wind and knocks on the overhead bunk.
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Old 01-22-2016, 07:38 PM   #6
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Quote:
Originally Posted by goofy View Post
I changed mine for one that's about 6 inches longer and regret it.

The antenna now occasionally whips in the wind and knocks on the overhead bunk.
Well, that's valuable info. Thanks for sharing. Do you mind sharing the reason for the change?
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Old 01-22-2016, 07:42 PM   #7
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I was worried that that might happen if I put a longer antenna on it. Looks like no easy solution. I would sure like to have better radio reception.
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Old 01-22-2016, 07:43 PM   #8
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I had it installed at the same time that I installed a CB .....hoping to get better reception with the CB.

I'm going to swap it back to the original......trial and error
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Old 01-22-2016, 08:16 PM   #9
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I sure would like to get the antenna set up for very best reception. As I said earlier, I ended up mounting the Sirius Hockey Puck Antenna up on the roof. What I'd like to do is take it to someone and get the best tuning of what I have or can get. No clue where to start. I question the CB Shops at the truck stops. No clue if they would do a good job or just blow smoke.
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Old 01-22-2016, 10:10 PM   #10
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I receive good am-fm signal with the stock ant.. I did add a second CB ant to the passenger side. I am having difficulties in setting the swr. I don't know if it's the ground plane of the Seneca or what.
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