Gerald Capodieci escribió: > I need advice or a lead on Water Pipe Interference (WPI). This is not a joke. > At midnight my wife and son came into the room while I was transmitting on > 3.9000 MHz stating that someone or thing is under the house hitting the > pipes or dragging chains. My son and I, carrying shovels, walked the > perimeter to find all the vents and crawl space covers in place. I went to > the shack to resume transmitting while my son listened. He came in to say the > water pipes were vibrating. I had him transmit while I looked and I could see > the 3/4 inch water pipe moving rapidly back and forth in 1/2 inch cycles. I'm > planning on clamping the pipes to the framing but wonder if that solution > could lead to further problems. Has anyone had similar experience or > information on this issue? I live near Los Angeles and have great signal > reports from all the Western states. I'm running resonant inverted Vs with > nearly a 1:1 match fed through a balun and RG213. The SDR1000 is driving an > AL-82 with at > least 1K Watts out and each piece of equipment is grounded to a 3/4 inch > copper pipe running through the shack and leading to the copper water pipes > 30 feet away. I have no TVI, RFI just WPI. > Jerry > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > /pipermail/flexradio_flex-radio.biz/attachments/20060911/7f926e54/attachment.html > > _______________________________________________ > FlexRadio mailing list > FlexRadio@flex-radio.biz > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > FlexRadio Homepage: http://www.flex-radio.com > > Gerald, I believe you 100%, but you must admit that this case is a good candidate for the best "urban legend" in the radio field in years. No joke, I would like to know how you fix it and a credible explanation. Antennas resonate (usually) but (usually also) they don´t vibrate mecanically that way.
-- 73 de Ignacio, EB4APL _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
