My 2 cents worth... A filter is not going to help if it is on your input. Depending upon how much signal you have from your remote site, I would think increasing the squelch level to the point that the un-wanted signal will not open the squelch, but low enough that your remote site can still get in would be an easy way to deal with it for now. Assuming you have enough signal to quiet the receiver effectively without IX from the TV transmitter causing problems. You mentioned that your remote site covers it effectively?
I notice you are a ZL, and I don't know what the rules are there... over here in the US it would be classified as a Part-15 device. In the US a Part-15 device cannot cause IX to a licensed service, and must accept any IX. Best neighborly bet is to hunt down the offending device, and see if it can be set to another frequency. If the party was un-cooperative, you file an official complaint, and then they get an official letter from the FCC instructing them to cease operation of the device. But as I said.. not sure of the rules in ZL-land. I have the exact same issue on 6m in my neighborhood.. on 50.247 there is a "rabbit" generating a wide-band FM signal... and haven't had oppurtinuty to hunt it down yet. I can clearly hear the audio from someone channel-surfing. I have noticed that if I bring my beams on azimuth (700w in a 2 x 6el phased stack), and run WSJT for a while... it goes away. But it always comes back. good luck, mike -----Original Message----- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of Kevin & Natalia Sent: Tuesday, November 22, 2005 11:12 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] CTCSS or DCS Hi All, We have run into a problem with some local interference getting into one of our link radios. It is believed to be coming from one of the TV home transmitters, that one can buy from the local appliance shops. It is producing a signal right on teh input of our link. I have put an extra filter in line, but this did not fix it. I really do not want to do through the hassel of trying to get another set of freqencies at this stage. Shoudl add that when the RX is receiving a signal from the TX link, it overrides the interference nicely. The interference is just enough to open the squelch. Have thought about putting either CTCSS, or a newer DCS TX/RX boards in the link system. I have read somewhere that DCS is the better way to go. If this is the case, where is the best place to purchase boards to fit inside our radios. We are using Tait T345 and T346 gear. Any information will help point us in the right direction. Regards Kevin, ZL1KFM. Yahoo! Groups Links Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
