Mike, How about getting the ground you need for the PA from your controller instead of the backplane? When the controller goes into PTT it gives you the timing you need, i.e. the tail, etc. If the controller goes to ground on the PTT, you could get your ground there. If it goes high, you could use a transistor to invert the positive to ground. You wouldn't have to go to the backplane. This is one approach that may be simple?
Good Luck 73 Jim KA2AJH Wellsville, N.Y. _____________________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Perryman Sent: Monday, March 13, 2006 10:52 AM To: [email protected] Subject: RE: [Repeater-Builder] A couple of Micor questions.. Thanks Jim, I thought that was the case, but wasn't sure. I had played with putting one of these amps on a 2m machine about 5yrs ago... but didn't recall just exactly how I made it play. There is a single pin below what looks to be metering attachments (4 each, in a parelellagram above it). The only other question would be the header pins on the transmitter interconnect board and how they figure into the mess...?? I have 2 other chassis, and they have the header pins... just didn't want to have to do major surgery to change the interconnect board. Thanks again, 73 Mike Perryman www.k5jmp.us -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Jim Cicirello Sent: Monday, March 13, 2006 10:36 AM To: [email protected] Subject: RE: [Repeater-Builder] A couple of Micor questions.. Mike, If the low band PA's are the same wiring configuration as the VHF Hi, there is a pin on the end of the Amp which must be grounded when you transmit. Other than that, it is just 12+, Exciter in and RF out. As I remember as you look at the component side of the amp, the pin is on the left end. I don't remember any other exterior connections. Good Luck, 73 Jim KA2AJH Wellsville, N.Y. _____________________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Perryman Sent: Monday, March 13, 2006 9:36 AM To: [EMAIL PROTECTED] com Subject: [Repeater-Builder] A couple of Micor questions.. First, thanks to all who responded to my requests for info regarding interfacing the RC-210. The repeater is on the air and functioning reasonably well! I do have another question though... I have a cont.-duty PA (Micor cont duty on 40MHz split) for it, and the interconnect board I have does not have the header pins for interfacing it. So it goes without saying I also do not have the associated cabling. Does anyone have info regarding how to make the outboard PA play? My question is, what gets tied to where with regard to the interconnect board and the PA. I couldn't find what I was looking for in my manual, as it is for an intermittant-duty compa-station. Actually I can't find much info in my manual regarding this PA. I did notice that it will have to be moved into the correct band-split so there is still some work in my future... Thanks again.... 73 Mike Perryman www.k5jmp.us 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/
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