kbednar99 wrote: >Ok, at the risk of being flamed I am gonna' ask this question >anyway. ;) I have inherited a Spectrum Communications SCR-4000 >repeater. Receive seems to work fine but the TX freq drifts after a >few minutes no matter how many times I reset it. It has the TCXO >option in it but it doesnt seem to matter. Any Ideas on what might be >causing this? Spectrum has been LESS than helpful, other than to >say "we discontinued it over 10 years ago and can't help you" and "we >can sell you a manual if you want though!". Thats great. Also, does >anyone know what mods are needed to run this unit with an outboard >controller, as the Spectrum one sucks. Any and all help is GREATLY >appreciated! > >Kevin >K2KMB >
Here is what I'd do: (in the short term) 1.) Take the Spectrum exciter out and throw it away. 2.) This next step is optional: Smash it with a hammer so you never have any thoughts of reinstalling it. 3.) Install a used Hamtronics exciter in its place. 4.) Gut out the old control and power supply circuitry from the Spectrum. 5.) Install a NHRC-4 controller. 6.) Hook it to a Astron RS-35A/M power supply. (in the long term) 1.) Save some money. 2.) Throw everything except #5 and 6 away above. 3.) Build or buy a real repeater. No I'm not joking. Kevin Custer Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
