The frequency range on the rda1846 transceiver ic inside the uv-5r is 134-174, 200-260, 400-520. Outside those ranges the RDA1846 just won't come out to play. Internally in the radio it may be actually returning an error but the firmware doesn't handle this (fails... Very silently.)
Sorry! If you want gapless RX this isn't your radio.
On Thu, Jan 8, 2015 at 7:17 PM, David B. Horvath, CCP <dhorvath@cobs.com> wrote:
> I'm looking to use the receiver out of those ranges Jim. I can
> manually program those frequencies into the radio but not via Chirp.
>
> - David
Yes. Sort of. CHIRP will let you alter the band limits of a UV-5R and
variant to a low of 1 MHz and an high of 1000 MHz. The you are able to
key in any STEP compatible frequency within those limits (except you
will have to arrow to frequencies below 100 MHz because you can key in
a leading "zero"). Once you have the frequency in the VFO you can
program it to a memory channel as you would a normal in-band
frequency.
That being said, even though the UV-5R and variants will display any
STEP compatible frequency between 1-1000 MHz, it won't RX/TX very far
out of the factory specified band limits. My crude tests came up with
these as practical limits.
VHF range 136-174 MHz expands to 127.8-176.0 MHz
UHF range 400-520 MHz expands to 383.5-524.3 MHz
YMMV
Jim KC9HI
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