So should I be fairly safe by putting my TS64MSTII into my MASTRII mobile and seeing what it does? Am I going to fry anything?
It seems to me that if it's the same as the stock board than it shouldn't have anything that could fry it. Like you said it may not do encode and decode at the same time without a mod but it will be easier to find out what needs to be changed if I know which part doesn't work. Vern On Tue, 11 Mar 2008 01:22:57 -0600 Nate Duehr <[EMAIL PROTECTED]> wrote: > NORM KNAPP wrote: >> Thanks for all the help. >> Any info would be greatly appreciated. I don't really >>care about encode, just decode. I also have a RC-1000 >>that I am thinking about hooking up to this rascal. Right >>now for our Citronelle Ala. 147.225 rptr we have a pair >>of Maxon SM4150's connected through a CES RM-20. It >>works, but I want to see 50 watts out of the duplexor and >>I am not gonna get that from a 40watt maxon mobile. >> 73 and keep the info comming! > > Remember the factory tone board in a MASTR II mobile >does do both encode > and decode, but not at the same time. > > In the station, two boards handle separate duties. > > So... I have installed a non-modified TS64MSTII into a >MASTR II mobile, > and it behaved like the stock GE board, just fine. It >did encode and > decode. > > Now... with that said... > > I've never looked at what one needs to do to the system >board to duplex > a mobile, but I know it's documented here on Repeater >Builder. > > Since the stock tone board wouldn't do both encode and >decode at the > same time, but the TS64MSTII will... the system board >schematic would > have to be consulted to make sure there's a path for >both encode and > decode audio when transmitting and receiving at the same >time from the > board to the exciter and receiver, and that nothing >switches the > encode/decode lines from the stock board's installation >location to > ground or anything like that. I doubt it. > > If nothing in the MASTR II mobile does that, then your >other > modifications that were made to the system board to make >the MASTR II > mobile a duplex radio, probably are "enough" and the >TS64MSTII will do > what you want. > > But a little careful study of the LBI's and the >schematics therein would > tell the tale. > > Sorry, I can't help more. I have far less experience >with the mobile > (other than as a non-duplexed link radio) than the >Station rack-mount > chassis. They're simpler, and have better isolation >between the TX/RX, > and our club hasn't used the mobiles for anything except >a split-site > system years ago. > > I'm virtually 100% sure that what you're attempting can >be accomplished, > it'll just take a bit of investigation about how your >mobile is already > modified, and a little tracing of the connector pins and >the lines that > come off the connector to the exciter and receiver on >the schematics. > > Your 147.225 frequency feels "close to home"... that's >our main VHF > frequency here and that UHF MASTR II station in the >photos is installed > in the cabinet right next to our 147.225 "flagship" >repeater. > > http://www.w0cra.org/info/conifer.html#147225 > > Good luck with it. You guys will figure out how to make >that TS64MSTII > do what you need, in all likelihood. > > As far as the comments someone made about the diagram, I >think that Mike > WA6ILQ got that graphic direct from CommSpec when he >asked for a > graphic, and we all may have missed that it depicts a >TS32 or something > weird during proofreading. The TS64MSTII is definitely >a carrier board > and a TS64DS. > > Hmm, is that graphic actually messed up...? (Hunting >for the link again > to look...) > > Mike? Any thoughts on that? > > Nate WY0X
