Next thing look at the comp voltage going to the tcxo it comes off of the 10v reg card. Have you checked or swapped it yet?
From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of steve Sent: Tuesday, August 03, 2010 8:06 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Mastr II drift problem Hi Stan, Yes I sent the crystals to International. I have 3 fans running full time on the heat sink. Thanks for any help! Steve --- In Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> , "Stanley Stanukinos" <ka5...@...> wrote: > > Did you just buy the crystals and insert them in the ICOMs or did you send > them in to the crystal MFG to be compensated. If you did them yourself the > compensation is probably now messed up. The best way to fix it is to send > them in to the crystal MFG for compensation. > > > > Stan > > > > From: Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> > [mailto:Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> ] On Behalf Of steve > Sent: Tuesday, August 03, 2010 5:33 PM > To: Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> > Subject: [Repeater-Builder] Mastr II drift problem > > > > > > Hello all, > > I have having a severe drift problem on my GE Mastr II 2 meter repeater. The > transmit freq will drift nearly 2 KHZ over a 5-10 minute period. I have > changed exciters and used a different ICOM but no improvement. The building > that I am in is not ventilated and is very very hot. I put a high/low > thermometer in and one day the high temp in the building was 114 degrees. Is > this the problem? > > Thanks for any help. > > Steve W4SEF >
