Skippy is a Jammer! ;-)
----- Original Message ----- From: "skipp025" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Friday, March 12, 2004 4:10 PM Subject: [Repeater-Builder] Re: 440 - 450 Low in High Out Repeaters > > "John Lloyd" <[EMAIL PROTECTED]> wrote: > > ...all of the broadcasters that I know of have > > repeaters that transmit in the low end of 450 Mhz. > > I thought that this was the same all over the > > country. Maybe this is different in your area. > > Nothing is fixed in stone, one broadcast group I work > with uses both directions for Duplex and direct RPU > operation. Sometimes at the same time... go figure. > > > All I am trying to say is that with the Broadcasters > > repeaters transmitting near the low end of 450 Mhz, > > it seems prudent that the amateur repeaters would > > want some frequency isolation from them especially > > at a co-located site and would want to use a low > > input frequency for their repeaters. It just make > > sense! > > Maybe for better adjacent or co-site operation. Most > of the time, there probably isn't a choice. In Northern > CA, we deal with a High Power, Over The Horizon - UHF > Military Radar problem in the low portion of the band. > > Just pick your dragon of choice and grab a sword... > > > I guess your local bandplan will take precident > > in how you operate with either a low input or > > high input. > > The current 440-450 bandplan was setup long before I became > interested in UHF Amateur Repeaters. I'm happy to say that our > current "Dysfunctional" Coordination Group had nothing > to do with that choice. We probably adopted an option of the > original ARRL Plan from decades back. > > > Combiners and antenna management are a must in > > high RF environments! > > I agree, wish everyone felt that way... > > > By the way, all we had back many years > > ago were GE mobiles and repeaters so we > > just bought the crystals for the Ham > > frequencies we wanted to operate on. > > Still have a few Pre-Progress, Progress and Master Progress > Repeaters in storage. The first boat going down the freeway > near my shop might find them attached to the anchor chain. > > I have to keep them away from the Motorola G Strips, Sensicon > and "Research Line" Cabinets, else they fight with each other > or gang up on the RCA Series 500 repeaters. > > > > > Thanks and 73's > > John, K7JL > > cheers John, > > skipp > www.radiowrench.com > > > > > > > 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/
