kb9sxk
Member
When I try to program the narrow band freq of 151.42250 in the radio, I get an error message. I have tried narrow, mid, and wide.
Wont the radio take that freq?
Halp
Wont the radio take that freq?
Halp
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JT-1000 Question
- Thread starter kb9sxk
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I know there were four revisions of the HT1000 but not sure which JTs did narrowband or if any of them would do that particular "splinter" (for lack of the best term) frequency.
If you are getting errors and it will not take, then I guess it just won't work in that radio. The HT1000 (which it comes from) is an older design when before there was narrowband talks and mandates.
If you are getting errors and it will not take, then I guess it just won't work in that radio. The HT1000 (which it comes from) is an older design when before there was narrowband talks and mandates.
Jedis that do narrowband will do 12.5 frequency steps based on the 25 KHz and 30 KHz channel separations, and 151.4225 ain't one of 'em. 151.4275 is the closest of the 12.5 splits it'll accept according to the one in front of me (D model), and if it's a 6.25 split, it won't take the 6.25 frequency unless it happens to fall on a 12.5 frequency. Even at that, it won't do the modulation for the 6.25 channels.
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Astro25
Member
JT1000s were only produced in the "AN" revision (or if there's a BN I haven't ever seen or heard of one yet). Is .4225 on a license or somewhere we can see it at? I haven't heard of that "splinter" before.
I don't see 151.4225 on the 6.25 step list either and it doesn't figure into that step sequence. 151.42125 and 151.42750 are the closest in the sequence.
I too have never seen anything in a JT other than AN models, but that doesn't mean there aren't some out there. I used archived code plugs for an HT1K with a full keypad front and an MT2000 to check the 151.4225 that was posted. Software for both would accept 151.4275 by allowing you to tab to the next parameter without a problem, but not 151.4225 or 151.42125 (no kiddin'.....). I suspect the radios would actually reject 151.4275, too, in reality.
I too have never seen anything in a JT other than AN models, but that doesn't mean there aren't some out there. I used archived code plugs for an HT1K with a full keypad front and an MT2000 to check the 151.4225 that was posted. Software for both would accept 151.4275 by allowing you to tab to the next parameter without a problem, but not 151.4225 or 151.42125 (no kiddin'.....). I suspect the radios would actually reject 151.4275, too, in reality.
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Astro25
Member
One way to tell if it's a newer radio is if the label is white, or if you just decode the date code. White labeled radios were almost always newer though.
kb9sxk
Member
MTS2000des
5B2_BEE00 Czar
it's firmware dependent. I think it has to have 3.02 or higher to do narrowband.
FYI firmware on the JT1000 is NOT upgradeable. You would have to replace a controller.
FYI firmware on the JT1000 is NOT upgradeable. You would have to replace a controller.
Fcc
The FCC has been giving out these splinter channels for about 5-6 years. We have one here on the transmit of the EMS channel(151.0025). I guess this is one way to force you to upgrade your radios. I still have my JT1000 and I still love it. It takes the 12.5 channels but not the splinters.
The FCC has been giving out these splinter channels for about 5-6 years. We have one here on the transmit of the EMS channel(151.0025). I guess this is one way to force you to upgrade your radios. I still have my JT1000 and I still love it. It takes the 12.5 channels but not the splinters.
kb9sxk
Member
Will it take them via rss?
RSS makes no difference. The synthesizer steps are what they are, keypad entry or RSS entry, and 12.5 steps from the band plan that existed at the time it was designed are all it will accept. When the Jedi series was in the design stages in the early 90s, there was no need for the splinter freqs you're wanting because the band plan didn't include them. 151.4525 is one I need but can't get.
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