>From: Chris BONDE <ve7hcb@rac.ca>
>To: "bill thomas" <k1xt@hotmail.com>
>CC: towertalk@contesting.com
>Subject: Re: [TowerTalk] Spurs and Harmonics new antenna
To: <towertalk@contesting.com>
>Date: Wed, 05 Dec 2001 16:44:01 -0800
>
>
>This I like!! Whar frequency? If we had the correct frequency, maybe we
>would not need 1KW out.
>
>Chris opr VE7HCB
>
>At 10:49 AM 2001-12-05 -0600, bill thomas wrote:
>
>
>
>
>>>From: w5kft@nts-online.net
>>>To: Towertalk@contesting.com
>>>Subject: [TowerTalk] Spurs and Harmonics new antenna
To: <towertalk@contesting.com>
>>>Date: Wed, 5 Dec 2001 09:59:54 -0600
>>>
>>>
>>>
>>> I installed a new 75 meter delta loop on Tuesday. Its 265 feet
>>>total length, cut for 3.795 khz. SWR is acceptable, less than 2.0
>>>to 1 on that freq.
>>>
>>> Problem is that when using this antenna I have a spur or
>>>harmonic every 10 khz across the 75 meter band. All the way from
>>>3500 up to 4000 the spur can be heard every 10 khz starting
>>>exactly on 3.500, in the DX window 3770-3780-3790-3800 the
>>>sput peaks at about 30 db over S9. All connections on the
>>>antenna, coax and fittings check solid.
>>>
>>> The delta loop is hung from the top of a 80 foot tower that also
>>>has a HyGain TH11 and Cushcraft 402CD on it.
>>>
>>> Weird thing is that if I key the transceiver (TS-940SAT) the
>>>spur
>>>will go away for about 2 seconds and then returns again.
>>>
>>> OK you list guru's.....what are your ideas and suggestions, this
>>>one has me stumped. Any suggestions on how to find the source
>>>and cure this problem would sure be appreciated....
>>>
>>>Bryan W5KFT
>>
>>I think you have something very nearby, perhaps in your own house, that is
>>emitting the spurs. Perhaps it's a television or computer monitor or God
>>knows what. As for transmitting and disrupting the source, I had a
>>similar experience. A few years ago I had a neighbor who had a touch lamp
>>that caused me grief with the noise that it emitted. I found that if I
>>keyed the transmitter at about a KW it would disappear. I was actually
>>turning it off with my signal. A month went by, and then I never heard it
>>again. They got rid of it. I wonder why? Good luck.
>>
>>Bill K1XT
>>
"Whar frequency?" Just what do you mean? Read the thread.
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