When I connect a speaker Mike to my MT2000 the transmitted audio has a ringing or feedback in it. if I move the speaker mike further away from the radio the noise gets quieter, and almost goes away. of course i can only move the mike so far away from the radio. I have tried adjusting the mike gain levels and I turned off the TX Emphasis and the RX Emphasis. But the noise remains. I have connected the same speaker Mike to my HT1000 and there is no noise. and I have tried a different speaker mike with the MT2000. So it's not the Mike itself. The TX and RX audio seems to have very little Base. would one of the settings in the Software elmiminate the noise? can anyone please help me with this issue?
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Motorola MT2000 Ringing or Feedback on transmit
- Thread starter kb1ltr
- Start date
MTS2000des
5B2_BEE00 Czar
Known issue, caused by RF feedback due to poor shielding of the front cover flex getting RF. A while ago, MSI sold a "Jedi noise kit" that consisted of some metallic tape, and a redesigned front cover flex and front shield flex with mating contact points for better RF shielding.
MTS2000des
5B2_BEE00 Czar
You most likely won't. These radios have been out of production for just shy of 20 years (2004/2005 IIRC was the last time any Jedi was available), IIRC the last year to order an MT2000 itself was 1st 2004. The parts, especially the retrofit kit, refurb kits, and service bulletin specific parts such as the Jedi noise kit are long gone.
It might be better to find a newer production MT2000, if you're was made before 1998, it most likely has the older design flexes. The control shield was also redesigned for better grounding (and physical strength) around late 1998 early 1999. The newer shield assembly had the newer style flexes from the factory with the contact point to mate with the front cover flex contact point. Of course, these radios got parts swapped over their life so it's also possible to have a mixed bag of new front covers on old radios etc.
It might be better to find a newer production MT2000, if you're was made before 1998, it most likely has the older design flexes. The control shield was also redesigned for better grounding (and physical strength) around late 1998 early 1999. The newer shield assembly had the newer style flexes from the factory with the contact point to mate with the front cover flex contact point. Of course, these radios got parts swapped over their life so it's also possible to have a mixed bag of new front covers on old radios etc.
maybe its just time to upgrade radios
MTS2000des
5B2_BEE00 Czar
Ya know, I would concur with this. Having been a care and serviceman of Jedi radios for a career, I have a soft spot for them- but would never use one for a daily driver. MSI's first "snap together" portable: not a single screw anywhere. The start of true LSI for LMR, wideband performance on VHF and UHF, and the introduction of FlashPort™.
In 1992, it was more advanced than any competitor. I still say, if you get one that works and has the later RF board, controller board, and of course front cover flex/display, newer front cover shield, and chassis- that hasn't been abused, gotten soaking wet, etc- you have one of the best sounding analog portables of the modern era.
That being said, an XTS2500/5000 mops the floor with a Jedi and is built 1,000 times better, Mistakes were made with the Jedi series, and corrected in the Cosmo/Kramer line.
The APX is truly the pinnacle or APeX of MSI LMR.
You can obtain software just about anywhere now... Even the newest stuff if available with a free account. The older stuff is pretty much in the wild for years.
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