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Author Topic: Is it a dud or is it me?  (Read 453 times)
KD5RYC
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« on: April 13, 2002, 10:17:13 PM »

I just picked up an Diamond RH77CA to replace the stock ducky on my T7H and can't get it to work.  It'll receive just fine, but it won't transmit.

To test this I put the ducky back on and transmitted to a local repeater and got the courtesy tone.  Put the new antenna on, transmit, no courtesy tone.

Is there anything else that I should try to be sure that I'm not making a rookie mistake?

Pat, KD5RYC
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WB2WIK
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Posts: 20603




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« Reply #1 on: April 15, 2002, 06:20:23 PM »

I'm not familiar with that particular antenna, but it sounds like a beefed up rubber ducky of some sort-?

Anyway, in case you haven't tried this:

Try moving around a bit.  The nature of VHF and UHF propagation is that there are "peaks" and "nulls" every 1/2-wavelength in space due to signal reflections, and where each peak and null occurs depends highly upon the design of the specific antenna being used.  A peak for one antenna may be a null for another one used at the same location.

So, unless you've tried moving your HT about 39" back and forth in the horizontal plane (in all directions), you haven't performed a fair test.

WB2WIK/6

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KD5RYC
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« Reply #2 on: April 19, 2002, 02:25:04 PM »

Thanks for the info.  That was exactly what was wrong.  I moved around and all of a sudden was hitting the repeaters.  Don't I feel silly... Smiley

Pat
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