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Bug #11976

open

Frequencies programmed with chirp have frequency offset in TX

Added by Leigh Marble 8 days ago. Updated 5 days ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
-
Target version:
-
Start date:
05/12/2025
Due date:
% Done:

0%

Estimated time:
Chirp Version:
next
Model affected:
Yaesu FT-1D
Platform:
MacOS
Debug Log:
I read the instructions above:
Yes

Description

I was programming a Yaesu FT1DR HT with CHIRP. I had just done a “microprocessor reset” on the HT, clearing all memories, so this was “starting from scratch”.

I expected the HT to transmit on the frequencies that I programmed it for.

Instead, several of the frequencies are transmitting on frequencies lower than I had programmed it for, as measured on an SDR waterfall (which has been tested to be accurate with several other sources).

Dial Mhz Measured Mhz Error, kHz

146.520 146.519 -1
146.580 146.575 -5
147.480 147.475 -5
147.560 147.556 -4

An error of 5kHz is enough to severely impact readability. It imparts a rough distortion quality to the audio.

If I set the frequency directly on the HT in VFO mode, it transmits accurately on the set frequency. I can also program memories using the HT's own interface, and it transmits accurately on them. It's only when setting frequencies in CHIRP and uploading them to the radio that it transmits off-frequency.

See also issue: https://chirpmyradio.com/issues/1735

Bug #1735 was for the Yaesu VX-8, and it seems to be fixed now. But during troubleshooting, I also checked the frequencies that I had programmed into a VX-8 about 10 years ago with CHIRP (so, before bug #1735 had been fixed), and they had IDENTICAL frequency errors to what the FT1DR is showing. So it may be a similar underlying issue.


Files

config.txt (1.98 KB) config.txt Leigh Marble, 05/12/2025 09:56 AM
Yaesu_FT-1D_blank_test_new_entries.img (128 KB) Yaesu_FT-1D_blank_test_new_entries.img Leigh Marble, 05/12/2025 09:56 AM
macos_system_info.txt (9.17 KB) macos_system_info.txt Leigh Marble, 05/12/2025 09:56 AM
debug_log.txt (653 KB) debug_log.txt Leigh Marble, 05/12/2025 09:56 AM
ft1d.py (91.1 KB) ft1d.py Dan Smith, 05/12/2025 03:00 PM
chirp_debug_log_02-433o5mdw.txt.zip (95.9 KB) chirp_debug_log_02-433o5mdw.txt.zip The debug log that recorded the 3 uploads in a row, compressed b/c too large to upload otherwise Leigh Marble, 05/14/2025 11:11 AM
Yaesu FT1XD_test_series.zip (26.7 KB) Yaesu FT1XD_test_series.zip Leigh Marble, 05/15/2025 11:35 AM
ft1d.py (91 KB) ft1d.py Updated module Dan Smith, 05/15/2025 02:54 PM
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