Thanks for the reply. I don't share your 'asking too much' stand. As it
sits, the unit covers 77 MHz (450-527 MHz). I only want it to cover
about 36 MHz (440-476). On top of that, I don't think the performance at
449.900 MHz and 449.925 MHz is going to be that much different than
450.000 MHz (100 & 75 kHz lower). Even if it didn't meet all the specs,
I would take what it can give.
I guess I'll stick with my GP300 which can do the above spread within
the specs, yet! It's not an HT-750, but it still has some advantages
over the Pro series units. (certainly not the speaker-mic, however)
I do appreciate the reply.
I don't appreciate what Motorola did 'for' the hams, though.
Just about every other unit can do the ham band without a problem.
Thanks again, Eric,
Joe M.
Eric Lemmon wrote:
>
> I think you are asking too much of the HT750. I ordered Range 1 UHF
> HT750 radios for my employer, planning for interoperability with a
> nearby Government agency, and it is remarkable that the radios meet all
> specs over the 403-470 MHz range. I have tried to program them above
> 470 MHz, with no luck. The design engineers at Motorola advised me that
> both the software and the firmware will block any operation out of
> band. I think that's a reasonable position, given that the "design
> rules" have already been stretched to achieve a 67 MHz bandwidth.
>
> In your case, you want to make a Range 2 UHF radio meet all specs below
> 450 MHz, and I don't think you can make that happen. Even if you could
> hack the software and firmware to override the bandedge blocks, your
> radio would not be performing anywhere near its in-band capability. And
> performance is a hallmark of Motorola.
>
> I congratulate you on your desire to use a commercial-quality radio on
> the Amateur bands, but I think you're going to need two radios to
> satisfy your wideband objectives. Yeah, I personally like the
> "DC-to-light" capabilities of some wideband Amateur gear, but that
> capability brings along a lot of limitations!
>
> 73, Eric Lemmon WB6FLY
>
> mch wrote:
> >
> ... Do you know of any way to program ham repeaters in a 450-527 MHz
> split HT750? I would just change
> > the split to a low one, but I need to keep the 470-476 MHz segment...
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