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Author Topic: Antennas: mobile or base?  (Read 1370 times)
M5AEO
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Posts: 336




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« on: April 29, 2010, 12:12:40 PM »

I have a Diamond SG7900 mobile whip set up as a base antenna with an 'after-market' add-on radial system at the bottom.  It seems to give quite good gain and has been on my balcony for a few years now and is still going strong.  But would a proper base antenna like the GP3 be better in the long run?

Jonathan M5AEO, London

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K6LCS
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Posts: 1986


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« Reply #1 on: May 09, 2010, 09:43:52 AM »

If you are line-of-sight now and pleased wit the results, you might want to stay with the setup. But if you want better simplex range then, yes, the GP-2 at a higher elevation will perform better.

Clint Bradford, K6LCS
http://www.k6lcs.com
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Clint Bradford, K6LCS
http://www.work-sat.com
N8EKT
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Posts: 588




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« Reply #2 on: May 11, 2010, 07:24:32 AM »

Even the best ham grade fiberglass antennas on the market won't hold up as well in the elements as a simple mobile antenna.

And WHERE the antenna is mounted becomes more important than gain.

A well positioned mobile antenna can easily outperform a poorly positioned stacked jpole
antenna.

Don't fix what ain't broke
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VE3PLO
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Posts: 158




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« Reply #3 on: May 15, 2010, 12:15:03 PM »

elevation is what matters with vhf, and line of sight as K6LCS posted. Stick with the Super gainer
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