Bryan, Connect a Cross needle SWR/Power meter to the Output of the PA.
Tune PA for Maximum power Adjust C2 for Max power with minimum SWR. Check C3 for shortest lead length to safely solder in. ************************************************ I am not the most experienced repeater jockey on the list; by a long shot. I just spent the better part of the morning isolating the problem I had on my 6m Hamtronics REP-200 down to input matching. I finally got someone on the other end to keep it active until the PA started putting out a low power signal after the Exciter was turned off by the Controller. The signal was not anywhere near 6 meters. I don't have a working Spectrum Analyzer to determine where it went. I found the above procedure eliminated the noticeable "spur" being created by the LPA 6-25R In the REP-200. In looking over the manuals for the other Hamtronics repeater PA boards, you may even venture to replace the .001 Disc Capacitor C3 with the 1 to 20 pF (pink) one from Hamtronics used in the LPA 4-35; designated C11 and C12. I don't know if this is too far away from the Disc's value to be effective; just noting that most of the other PA kits have trimming/tuning ability on both sides L1. You may also want to verify that L1 is 1/2" and 1/8th" above the board. I don't know if this will be any help or not. David KD4NUE ----- Original Message ----- From: "Bryan Fields" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Tuesday, December 20, 2005 2:11 AM Subject: Re: [Repeater-Builder] Re: Hamtronics T301 220 exciter Final and microphonics > As to the origional question, anyone fixed the microphonics problems with > the > exciter? > > -- > Bryan Fields, KB9MCI 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/
