Hello Harold,

The 4th harmonic at 14.317 is 10 dB below the S9 value of -73 dBm when I
point my beam due South. That is a strong interference. I can also hear the
first, second and third harmonics much weaker. The signal is present 24/7.

I just finished talking to the Mediacom Cable TV Co. Tech Service and they
are going to send a technician with some detection gear. They want to get
it fixed because of FCC requirements and also to satisfy the customer.

Defective cables is a common problem that the Cable TV and Wideband Internet
Companies are interested in.

Mediacom Co. here has been a pretty good company to deal with. My Wideband
Cable Internet connection has also been very good.

Bill W0IYH


"Harold E. Johnson" wrote in message
news:jOt7e.16798$8Z6.10348@attbi_s21...


Is anyone else hearing the harmonics of 3.5795 ?

Bill W0IYH

Bill, I have a little TV set on a different desk in the shack here, maybe
10-12 feet from the radio. With it on, I still can't hear the 4th harmonic
above an "S-0" with the rig on the yagi. If I go to the inverted L, (L
matching network tuned to 40 meters) it comes up a little bit to perhaps a
"S-1".
That represents a level of somewhere around -120 dBm. Maybe less than that
remembering the bandwidth I'm using. Apparently my neighbor is still
asleep, I do NOT hear the signal to the NorthEast that I had yesterday. It
BTW, was no stronger than this one in the shack today.

My homebrew Txcvr is a hamband only, so I can't listen to the other
harmonics, but even the fundamental at 3579 is only an S-3 on the inverted
L
(Voltage fed 1/2 wave on 160) with the matching network on 80 meters. That
must be some TV set you're listening to. I remember your article on your
antenna, but don't remember, are you by any chance using open wire line?

Regards
W4ZCB