The first "red flag" is the LMR400 cable which is notorious for causing desense in duplex service. Can you hear the repeater OK but have difficulty getting in?
Also, getting above the tree level can make a big difference on UHF. Chuck WB2EDV ----- Original Message ----- From: "thornwal" <[email protected]> To: <[email protected]> Sent: Monday, January 18, 2010 8:19 AM Subject: [Repeater-Builder] Re: Split Site Via Coax Cables & Wire? > > > --- In [email protected], "Chuck Kelsey" <wb2...@...> > wrote: >> >> Explain your 440 setup and the coverage. Maybe someone can offer some >> pointers there. >> >> Chuck >> WB2EDV >> > > > The 440 repeater is a Icom FR-4000, with a Sinclair duplexer (4 cavities). > I have about 50 ft of LMR-400 coax running to a vertical ant (9.8 db) on > at ~25ft. I had a 25db preamp on it seemed to help a little. Freq is > 447.9500+ MHz, ERP ~80 Watts, HAAT ~600 Feet, @1,200 ft elevation. My 2m > IRLP node @ 5 or 20w seems to do better than the repeater even though I > have it on a dual band vert at a lower elevation, I figured it was the 440 > band. > > I have RC210 controller on it for the IRLP node (multiple ports) but it > keeps resetting and has locked up a few times (PTT on!) so that's why I > put the IRLP on 2m simplex. Not sure why it locks up, maybe RF? It's still > resets every couple of days even though it's not used much. > > Coverage map: > http://k5ehx.net/repeaters/qrepeater.php?id=15838 > > Thanks, > > --Greg > > > > > > ------------------------------------ > > > > Yahoo! Groups Links > > > -------------------------------------------------------------------------------- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.725 / Virus Database: 270.14.148/2629 - Release Date: 01/17/10 14:35:00
