Topband: 3B9C In Florida/ Receive Antennas

[Larry Harrison]

Larry Harrison wrote:

> Thomas,
>
> Like you I live on a small 1/2 acre lot and have been plagued with the 
> same problems.
>
> I do not know about the flag antenna, however the K9AY receiving  
> antennas is just great.  I have been using one for a couple of years 
> now and very pleased with it.
>
> You can detune the tee transmit antenna, when receiving, by placing a 
> relay at the feed point and opening the feed so that the antenna will 
> then become resonant at twice it's normal frequency ( it becomes 1\2 
> wave antenna).  I use a surplus vacuum relay obtained from Fair Radio 
> Sales.
>
> I am not  sure what to tell you about detuning the low doublet, I will 
> leave that to others.
>
> 73,
> Larry Harrison K3JRR
>
> Thomas Giella KN4LF wrote:
>
>> I had the usual local QRN on the 160 tee vertical and even the low 
>> doublet last night. Very frustrating, especially in light of not 
>> having room for listening antennas. In any event I listened for 3B9C 
>> from my local sunset until his local sunrise and only heard an 
>> occasional Q3 peep from him at times. He did peek here one minute 
>> after his local sunrise on my low doublet but only to a brief Q4.
>> Then at about 0230 UTC I noticed that I had 12 db of attenuation in 
>> line on the receiver so this helps explain why 3B9C was so weak here, 
>> gggrrr!!! It was an I/O error. For those of you who have worked in 
>> the mainframe computer programming field since the 1960's, you will 
>> recognize an I/O error as an in/out error. But in my case it's an 
>> IDIOT OPERATOR error!
>> BTW I live on 1/4 acreville in suburbia and there is no way to put 
>> out any receiving antennas, at least far enough away from the 
>> transmit antennas to prevent QRN coupling. I rarely post questions on 
>> the reflector but does anyone think that it's worth the effort to put 
>> some flag receiving antennas up here when they would be so close to 
>> the transmit antennas?
>>
>> 73 & GUD DX,
>> Thomas F. Giella, KN4LF
>> Retired Space & Atmospheric Weather Forecaster
>> Plant City, FL, USA
>> Grid Square EL87WX
>>
>> SKYWARN Observer # HIL-249
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>>
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>>
>>
>>
>>
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>