Bug #10285
openRetevis RT68 - unable to save Rx/Tx Freq
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Description
Using chirp-next-20230118 with Retevis RT68.
Chirp is unable to edit any of the frequencies.
Files
| chirp_debug-5y83jflb.txt (67.4 KB) chirp_debug-5y83jflb.txt | debug log | ||
| chirpwx_BQU7cP1cUq.gif (242 KB) chirpwx_BQU7cP1cUq.gif | action gif demonstrating the bug |
Updated by Jim Unroe almost 2 years ago
- Status changed from New to Feedback
John Smeethen wrote:
Using chirp-next-20230118 with Retevis RT68.
Chirp is unable to edit any of the frequencies.
This is not a bug. The RT68 is sold as an FCC certified FRS radio. The memory rows are programmed to be limited to the FCC assigned FRS frequencies and the Mode is fixed to NFM. The RT668 cousin is similarly a PMR radio for the EU market and limited to PMR frequencies.
Jim KC9HI
Updated by John Smeethen almost 2 years ago
Hi Jim, thanks for speedy reply and sorry for confusion.
RT68 has some factory pre-defined FRS bands.
However, channel 13 and 14 are missing and of course by Murphy's law those are the FRS channels that we use on all our other radios.
Using Chirp and trying to change channel 1-2 to FRS-14 and FRS-13 (467.7125, 467.6875) does not work. FRS radio should be able to have those channels or am I misunderstanding that?
Updated by John Smeethen almost 2 years ago
Edit -- this radio is missing entire range of FRS Channels, everything that's in 0.5W range (channels 8-14). Maybe that's a clue.
Could it be that this is a 2W radio that can't auto negotiate and regulate power? Or is this a Chirp bug?
Updated by Jim Unroe almost 2 years ago
John Smeethen wrote in #note-3:
Edit -- this radio is missing entire range of FRS Channels, everything that's in 0.5W range (channels 8-14). Maybe that's a clue.
Could it be that this is a 2W radio that can't auto negotiate and regulate power? Or is this a Chirp bug?
Exactly. FRS permits 22 channels. The RT68 is a 16 channel radio. Retevis decided that to populate the radio's 16 channels they would leave out the 7 low power channels in the 467 MHz range and duplicate channel 7 for channel 16 (22 - 7 + 1 = 16). That is the way that all 16 channel FRS radios that I've seen are configured.
Jim KC9HI