Remind the fellow using 100 watts to talk to a repeater that he could be in violation of Part 97 rules on using minimal power. We had a similar situation and interference to our one 2 meter repeater on the mountain and we had to remind the guy of the "Laws of Radio Physics", power, distance, and Part 97 !!
Ron WW8RR -----Original Message----- From: Mathew Quaife [mailto:[EMAIL PROTECTED] Sent: Tuesday, April 27, 2004 3:46 PM To: [email protected] Subject: Re: [Repeater-Builder] Help on Interference Well I narrowed down parts of the problem, the first being the wide as a 2x4 Regency receiver, which is going to be changed out, and the other is a local ham using 100 watts to talk to this machine, when in it really only needs about 7 watts to hit it full quieting with minimal antenna height. My repeater actually is just gettting underway, new coordination. So each day is a new adventure for me. Having not played with FM and etc....for about 15 years, still trying to remember, kinda hard to get all the cobwebs out of the brain. Thanks. Mathew ----- Original Message ----- From: "Virden Clark Beckman" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Tuesday, April 27, 2004 2:26 PM Subject: Re: [Repeater-Builder] Help on Interference > Try using the math on the IF of your rx to see what is making them mix > on your freq, how long have the 2 machines been co-existing on-the-air? > If it were one or 2 users you would know it rather than the entire time > the machine is active, can you see how clean the signal is from that > machine, I doubt if 50 miles is gonna make trouble unless the have some > really wide spurs and then every open rx is gonna see some falsing. > > w9mwq wrote: > > > > I have a repeater with an antenna up about 60 feet in the air, > > Frequency of 146.925/146.325 minus offset. Receiever sensitity > > is .25 micorovolt at 12DB, seems to be purring along just fine. IFR > > show the receive to be on frequency. Here's the problem, there is a > > repeater about 50 air miles away, on the pair of 146.910/146.31o > > minus offset. There repeater is getting into my receiver, causing > > the repeater to key up. There is no pl on my repeater at this > > time. They sound like they are on sideband when they come in. I > > can goto the 91 machine, hear them talking, when they quit, the > > interference quits. I took my IFR and inserted a tone on 146.310 > > into my receiver, it took 15 microvolts to open the squelch of my > > receiver. Is it my receiver, which is a Regency receiver, or is it > > the person transmitting on the other machine. I could see if it was > > the 91 machine if all it was doing was killing my receive, but it's > > actually keying up the repeater. SO my guess would be it would have > > to be the person talking on the 91 repeater. I hope I explained > > this right. Any suggestions. Thanks. > > > > Mathew > > -- > 73...Clark Beckman N8PZD > > > > > > Yahoo! Groups Links > > > > > 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/
