On 8/27/2010 1:56 PM, Tom Manning wrote: > Hello Jim I note your message about narrowbanding and the comment > about the MSR2000. I have seen no info on doing so but it seems to > me that the MSR200 could be narrowbanded. The MSR is very similar to > the Mitrek and it can be narrowbanded by using a kit by a company > that slips my mind. Therefore I feel narrowbanding would be > possible. I will be attempting this in six months or so. 73 de Tom > Manning, AF4UG ----- Original Message ----- From: Jim in Waco WB5OXQ
Except that the MSR is NOT type-accepted for narrowband operations, and the kit does NOT make it such, therefore the kit is NOT acceptable for Part 90 narrowbanding!!! This has been hashed out and answered on many lists, by people who are VERY MUCH in the know, people who are directly involved in the FCC narrowbanding proceedings in DC. So far, the only narrowbanding kit I have seen that is actually acceptable is the real Kenwood kit for the TKR-820 (not the 720), as supplied BY KENWOOD. This of course doesn't include radios made after the 1996(?) deadline that required all mfgs to include a 12.5 KHz mode. This includes the versions of the MastrIII that were made after that date. And when you say Mastr 4, I am assuming you mean the newer DSP audio based units that have been made in the last several years (I was told by M/A-Com that the DSP based MastrIII's were called MastrIV's in house.) That should be narrowbandable with a software change. > > I have a uhf master 4 that has been used for years as a paging > exciter. Now the pager business is in the tank I would like to make > the master 3 into aq repeater for commercial needs to replace a > msr2000 because the msr cannot narroband. If the ge can't either I > dont want to waste time and just buy a new repeater that can > narroband. [email protected] > > >
