I think much of the problem is in the tuning caps on both the exciter and PA.
Joe M. ac0y5 wrote: > > It seems a lot of the complaints are from oscillator drift and > tuning drift. I have a few questions Does anyone know if the main > problem resides in the exciter, or the power amp? My plan would > eliminate all problems related to the oscillator because the Tx and > Rx will be generated from a pair of Numerically Controlled > Oscillators well filtered. I have already designed the entire > circuit. Now, if Anyone knows where the problem may lay then I will > be able to take care of the problem an external PA that I have or an > exciter that I can buy cheaply. The power supply should be okay and > it has been stated that the receiver is quite sensitive. If > necessary I can add a 5 or 7 pole helical resonator to the front end. > > 73 > AC0Y > > --- In Repeater-Builder@yahoogroups.com, JOHN MACKEY <[EMAIL PROTECTED]> > wrote: > > The Siouxland Amateur Radio Association in Sioux City, Iowa bought > a used > > Spectrum repeater on 2 meters about 3 years ago for something like > $1100, > > (with duplexer) fully operational. I attended a meeting of the > repeater > > managers in Sioux City about 2 weeks ago & they were saying they > wish they had > > never bought it. (I tried to tell them not to buy it but they > ignored me!!) > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
