I can work the UHF machine 40miles away with a mobile and 50-60on the VHF side.
Bear in mind that my backyard is 660 or so ASL. Mathew Quaife wrote: > What are you calling great results? At best my UHF at 100' on a > handheld with a 6 dB gain antenna gives me about 7 to 8 miles of range, > considered usable, fed with 1/2" hardline. At 170 ft of LMR 400 you > would have nearly a 3.5 dB of loss in just the cable. > > Mathew > > > */Jay Urish <[EMAIL PROTECTED]>/* wrote: > > Just as a point of reference, I have a UHF machine Moto MSF5000 pumping > out 90watts going up 170 ft of LMR400 coax and I get great results. To > make it more interesting, I have a comet duplexer at the feedpoint (in > my station) so I can use the VHF part of the fiberglass dual band > wonderstick as RX for my vhf repeater till I get a duplexer that will > tune to 144.630(my DB duplexer wont) > > > [EMAIL PROTECTED] wrote: > > At 1/6/2006 01:34, you wrote: > > > >>Bob, > >> > >>Sorry if I didn't get it right but now I am really confused .... > and open to > >>learn. > >> > >> > >> > >>>Shielding percentage of the antenna feedline has nothing to do > with duplex > >>>suitability. > >> > >>Somewhere I am missing something.... If shielding doesn't play a > part in the > >>suitability factor of selecting feedlines, why do we use hardline > (other > >>than less loss) or double shielded jumpers for connections etc.in > a duplex > >>operation? > > > > > > Double-shielded jumpers are needed where isolation is needed > between TX & > > RX (duplexer jumpers & RX/TX connections to the duplexer). From the > > duplexer antenna connector onward to the antenna, the TX & RX are > already > > combined. What's important there is linearity. RG-214 is > double-shielded, > > but it's also silver plated (or supposed to be, some '214-type' > cable > > isn't). Hardline has a solid outer conductor with no > intermittent/point > > contacts to generate IMD, so it's also extremely linear. > > > > Bob NO6B > > > > > > > > > > > > > > > > Yahoo! Groups Links > > > > > > > > > > > > > > > -- > Jay Urish Systems Engineer > Unixwolf Enterprises LLC. > http://www.unixwolf.net > 972.691.0125 972.965.6229 > > > > > > Yahoo! Groups Links > > > > > > > > ------------------------------------------------------------------------ > Yahoo! DSL > <http://pa.yahoo.com/*http://us.rd.yahoo.com/evt=37474/*http://promo.yahoo.com/broadband/ > > > Something to write home about. Just $16.99/mo. or less > > > > > > > ------------------------------------------------------------------------ > YAHOO! GROUPS LINKS > > * Visit your group "Repeater-Builder > <http://groups.yahoo.com/group/Repeater-Builder>" on the web. > > * To unsubscribe from this group, send an email to: > [EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> > > * Your use of Yahoo! Groups is subject to the Yahoo! Terms of > Service <http://docs.yahoo.com/info/terms/>. > > > ------------------------------------------------------------------------ > -- Jay Urish Systems Engineer Unixwolf Enterprises LLC. http://www.unixwolf.net 972.691.0125 972.965.6229 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/
