[Elecraft] Telephone RFI

[Art-W6KY]

Years ago I was on the phone with K6NA, we were tuning my 
Alpha 76CA up for the 1st time. At about 1300-1400 watts the
phone went dead. So did my neighbors phones. The K-Com filters
fixed the problem. No more telephone RFI problems....Give
em a try....
73, Art  W6KY    K1-2  K1-4
Don't forget the CW NAQP    Saturday 1800Z to 0600Z Sunday
www<dot>ncjweb<dot>com<slash>naqprules<dot>php
How's that for 'no HTML' code allowed?

Wingkeel at aol.com wrote:
Hi everyone,

I have two antennas...an unmatched longwire and a vertical. The 
unmatched longwire interferes with our two line 900MHz phone system a little bit but 
the vertical almost destroys audible altogether. While transmitting CW on the 
vertical, there is a loud clicking sound on both the receiving AND 
transmitting telephone, even though one or the other could be removed by several miles.

The phone line within the building is all CAT-5 with the exception of the 
last 15' of the base station telephone. I've tried 10 turns of flat 4-conductor 
telephone cord through a toroid...no difference, (however, I don't know what 
the toroid is made of). I've tried one of the clamp on decouplers with no 
change. I can't put a coupling capacitor on the line because of our high speed 
DSL.

It only happens on 40 and 80 meters. There is no interference at 20 meters. 
Does anyone know who builds telephone RFI filters for this frequency range? 
I called the local phone company and they said that they don't have anything 
to do with aircraft frequencies (????). I figured it would be fruitless to 
pursue this avenue of approach!

If I don't get this fixed pretty soon, one of three things will happen:
1. Discontinue use of my K2 between the hours of 0600-2300.
2. Find a solution to this dilemma.
3. Become a priest, because I'll be celibate after this anyway.

Thanks in advance

Terry de KC0QZX
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