Hi Group, My club has a the never design Station master Pd-220 bought new in 1998. Antenna is top mounted ( Rohn 45G 50 ft.) The problem were having is the Rx went to crap since recent temperature season changes in PA.
What has been noticed is the Rx is a bit deaf (MastrII with ARR Preamp at .050mv sens. and Wp-642 cans) Rpt was ruled out as the Rx levels are the same. and the TX is right on the money. There was a issue with the Hardline from a hungry critter and was replaced last week with RG-214 untill spring than run new hardline. thinking this was the problem Distance users that could get in with 5 watts or less with a 5-9 signal can't key up the Rpt with 50 watts in a 30 mile radius. We Have SWR of 1.8 across the 2meter band. Was 1.3 when checked in years past. Local users ( less than 5 miles line of sight) have noticed RX signal changes. We know the station master is old by todays standards and duplex situations and top mounted have there issues.The question asked is how are the newer stationmaster taken apart? Searches online and repeater- builder and no pictures. Is this a lost cause to think about fixing. Ryan n3ssl
