I would ask the people if I could put a filter on the power line to the TV.
That might reduce or eliminate the QRN. Maybe get a surge protector/filter setup and convince them it's a protection device for their investment. I bought phone filters and installed them on the neighbors on both sides of my house to eliminate the AM getting in the phones. I also had to filter an audio system with extended speaker wires as I came through quite loud even with the thing turned off. Some caps across the speaker outputs cured it totally! Brett N2DTS > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Kenneth A. Christiansen > Sent: Tuesday, June 12, 2007 7:50 AM > To: [email protected] > Subject: [Elecraft] K3 Noise Blanker ahead or behind roofing filter? > > I have K2 SN 1031 and an IC-746PRO. Last week my next door neighbor > brought home a large screen TV that looks to be the rear projection > type. I didn't pay much attention to it as they unloaded it > but now find > it puts out lots of QRN. It puts out S9 on the PRO 60 HZ QRN > on 20, 15, > 10 6 and 2 meters. Those are the bands I have antennas that work. The > noise blanker in theK2 and the PRO both eliminate this bad QRN right > down to the background noise :-) when there are now strong > signals on > the band but when a strong station such as the W1AW code > sessions come > on 20 meters, (20 over 9 in ND), than the K2 using NB1 has problems 5 > KHZ or so either side of W1AW. NB2 has problems up to 10 KHZ > either side > of W1AW and the PRO has problems 15 KHZ either side of W1AW > :-( . Is the > noise blanker on the K3 ahead of the roofing filter or behind the > roofing filter. If it is behind the roofing filter buying a > K3 might put > me back on the air :-) but if it is ahead of the roofing filter > than would I have the same problem as the K2 :-( ? I have > looked at the > FAQ part of the Elecraft K3 site and do not find the answer to this > question. I just need a short answer so please do not start a long > thread on my station or observations etc. > > 73 and thanks for the help. > > W0CZ > _______________________________________________ > Elecraft mailing list > Post to: [email protected] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
