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Cobwebb Homebrew
Hi Richard
You might have the answer there. I will ask my friends tomorrow what Ariel's there using. The G5RV is a homebrew half size with 300ohm vertical feeder straight into 50ohm coax that has a coax Air Core Choke Ugly Balun in it. Thanks "Richard Clark" wrote in message ... On Wed, 16 Apr 2008 21:37:56 +0100, "Barrett" wrote: Hi Richard I have a manual tuner and two auto tuners that I have used and it makes no difference to improve the received signal. I have also used two different radios with the same outcome. I'm wondering if the G5RV is to close and is causing this or if the square 10"x10" mounting plat that I have used in the centre of the Cobwebb might be causing the problem. The G5RV is at the same height as the homebrew Cobwebb and they are about 15ft apart. All other bands do not sharply drop off like 28MHz does on receive signals. Thanks Hi Barrett, One other thing that comes to mind is you may be cross-polarized, which for line of sight transmission (and this close proximity so qualifies) can exhibit substantially depressed signals. This would mean that your Cobwebb homebrew is very much horizontally polarized, and that your G5RV has enough slope to it to be sufficiently vertical to your buddie's vertical signals. I will let you sort out the particulars - like the buddies are also vertical (if not, well, there goes that theory)..... 73's Richard Clark, KB7QHC |
Cobwebb Homebrew
On Apr 17, 12:05*am, "Barrett" wrote:
Hi Richard You might have the answer there. I will ask my friends tomorrow what Ariel's there using. The G5RV is a homebrew half size with 300ohm vertical feeder straight into 50ohm coax that has a *coax Air Core Choke Ugly Balun in it. |
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