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Author Topic: Opek HVT-400B hears, but isn't heard  (Read 1162 times)
VK2HLG
Member

Posts: 12




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« on: March 09, 2013, 01:56:49 PM »

Hello everyone.

Any ideas what is wrong with my installation of an Opek HVT-400B? I am trying to use in for WSPR on 20m, and while it seems to hear plenty and tunes to 1:1 SWR for transmit, no one hears me, not even a station within walking distance.

Here's the installation (I don't know why we can't embed remote-hosted photos here):

http://i292.photobucket.com/albums/mm1/hazydavy99/DSC_0899_zps3b0eccf4.jpg

http://i292.photobucket.com/albums/mm1/hazydavy99/DSC_0898_zps40abe0df.jpg

That's the roof of a garden shed. The gray corrugated parts are steel; the white parts are transluscent plastic. The base of the antenna is about 2.5 meters (7 feet or so) in the air. It's not high, but it's higher than a car, which is what this antenna was intended for.

The antenna's fed by about 50 meters of coax, connected to an ICOM 7200 via a Palstar AT2K. Like I said, 1:1 SWR.

Any advice? Thanks.

David VK2HLG

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W4JST
Member

Posts: 0




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« Reply #1 on: March 09, 2013, 04:02:02 PM »

Another radio within walking distance cannot hear you?

You should be heard on a nearby radio even WITHOUT an antenna connected.

Check for power output at the radio. Check the microphone etc. Try FM or CW instead of SSB.
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VK2HLG
Member

Posts: 12




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« Reply #2 on: March 09, 2013, 06:01:21 PM »

Ah, now I am getting out. I had the wrong audio output device selected in the configuration of the WSPR client. It's the one that says "USB Audion CODEC."

Thanks!
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