If in fact the power control module turns out to be a problem let me know... I have a box full of them. Whenever I hear of someone throwing Micor components away I try to scarf them up. Just for repair parts, if nothing else....
73's Mike K5JMP At 01:08 PM 06/02/2004 -0400, you wrote: >You should see about 350-500 milliwatts going to the pa deck and the >bias/control line must be connected properly to the station frame. Many >times I see these stations for sale at hamfests with the jumper wire >allowing the pa to run only full-tilt-boogey, which is why they crash >and burn so often - the control circuit is there to help cut back or >turn off the power when the swr gets bad from someone stepping on your >feedline or the antenna falling away entirely from wind or >who-knows-what. If I remember correctly the bias line is blue 18AWG >wire, sample there in parallel to ground and switch to some 75 ohm >feedline to the dummy load - the voltage has to change or the pa will >burn up at the site. It is really helpful if you have manuals but as you >may notice I do more with sample and trial then draw the schematic and >continue troubleshooting along the path of suspicion, slow but very >informative. > >David wrote: > > > > I have a problem. I have a micor base/repeater and over the weekend I tuned > > it up to my frequency and was testing out and I am not getting any > power out > > the exciter is producing some power as I can hear the radio a hundred feet > > away with it going into a dummy load. the watt meter tested okay > on another > > radio. the pa is getting power and I have tried adjusting the power > control > > to no avail. I don't think the triple low level amp is working. but I > am not > > sure how to fix it. > >-- >73...Clark Beckman N8PZD > > > > > >Yahoo! Groups Links > > > > --------------------------------------------------------------------- Mike Perryman Cavell, Mertz & Davis, Inc. [EMAIL PROTECTED] Consulting Engineers http://www.cmdconsulting.com 7839 Ashton Avenue K5JMP Manassas, VA 20109 USA (703) 392-9090; (703) 392-9559 fax; DC Line (202) 332-0110 --------------------------------------------------------------------- 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/
