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
SWFWMD Observer #574
PODX 070 PSK31 Member #349
Yaesu FT-840 & PSK31 News Group
http://groups.yahoo.com/group/yaesu_ft840
10 & 6 Meter Propagation Beacon Network http://www.PropNET.org Solar
Space Weather & Geomagnetic Data Archive http://www.kn4lf.com/kn4lf5.htm
HF/MF Radio Propagation Theory Notes http://www.kn4lf.com/kn4lf8.htm
160-10 Meter Amateur Radio Resources & More http://www.kn4lf.com
Florida Space & Atmospheric Weather Institute
http://www.kn4lf.com/fsawi.htm
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