I think its a combination of inferior components and poor design. The receiver is quite sensitive,but not very selective and overloads easily. You would be better off dropping some GE or /\/\ boards in it. 73,Lee
----- Original Message ----- From: "ac0y5" <[EMAIL PROTECTED]> To: <Repeater-Builder@yahoogroups.com> Sent: Wednesday, November 26, 2003 8:43 PM Subject: [Re: [[Repeater-Builder] Spectrum Communication SCR1000 VHF Manual]] : 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/
