Hello, I see the TM-281 is listed as supported and in the code comments it
shows it is identical to the TM-271. Indeed if I connect to the radio using
putty and send the ID command it returns TM-271.
I am able to connect to the radio and read using Kenwoods MCP-1A software and I
see the TX/RX lights on my serial adapter flash accordingly. Unfortunately this
software is no longer being maintained. So I really would like to use CHIRP.
I have proved out my cable connection by using the MCP-1A software.
In CHIRP it doesn't seem even try sending data as my LEDs for TX/RX never light
up when I hit connect.
I noticed in the MCP1-A software that there is setting read from the radio with
the name of "Data Speed" with two options: 1200bps and 9600bps. I have tried
setting it to 9600bps and writing that to the radio and connecting with CHIRP
and still no connection and not TX/RX lights.
But I don't think this is the ultimate problem as I don't even see the TX light
flash with CHIRP trying to send ID at the different speeds. I did notice in the
debug log that it never tries 1200bps. It seems like CHIRP just isn't actually
opening the serial port and writing to it.
Also I noticed rts/cts is set to true but that should be false, I think. I'm
not sure how to change that in chirp in the UI.
Here is the debug log.
------------------------------------------------------------------------------------------------------------------
[2025-05-11 20:29:59,543] chirp.logger - DEBUG: CHIRP next-20250509 on Win32
(Unknown 10.0:22000) (Python 3.10.8)
[2025-05-11 20:29:59,623] chirp.wxui - DEBUG: Using locale: en_US (276)
[2025-05-11 20:29:59,631] chirp.wxui - DEBUG: Translation loaded=True for
CHIRP: en_US
(bg_BG,de,el,en_US,es,fr,hu,it,ja_JP,nl,pl,pt_BR,ro_RO,ru,tr_TR,uk_UA,zh_CN)
from C:\bin\chirp-next-20250509-win64\chirp\locale
[2025-05-11 20:29:59,639] chirp.wxui - DEBUG: Translation loaded=False for
wxstd: en_US
(af,an,ar,ca,ca@valencia,co,cs,da,de,el,es,eu,fa_IR,fi,fr,gl_ES,hi,hr,hu,id,it,ja,ka,ko_KR,lt,lv,ms,nb,ne,nl,pl,pt,pt_BR,ro,ru,sk,sl,sq,sv,ta,tr,uk,vi,zh_CN,zh_TW)
[2025-05-11 20:30:00,177] main - INFO: Python/3.10.8 //
Windows/Windows-10-10.0.22000-SP0 // CHIRP/next-20250509 // wx/4.2.0 msw
(phoenix) wxWidgets 3.2.0
[2025-05-11 20:30:00,228] chirp.wxui.main - DEBUG: Recent is now
['Z:\\Ham\\Yaesu_VX-6_20220831.img', 'Z:\\Ham\\Anysecu_WP-9900_20231119.img',
'Z:\\Ham\\Anysecu_WP-9900_20230529.img',
'Z:\\Ham\\Anysecu_WP-9900_20230529.img',
'Z:\\Ham\\Anysecu_WP-9900_20230529.img',
'Z:\\Ham\\Anysecu_WP-9900_20230529.img', 'Untitled.csv']
[2025-05-11 20:30:00,492] chirp.wxui.main - INFO: Server reports next-20250509
is latest
[2025-05-11 20:30:03,506] chirp.wxui.clone - DEBUG: All system ports:
[{'device': 'COM1', 'name': 'COM1', 'description': 'Communications Port
(COM1)', 'hwid': 'ACPI\\PNP0501\\1', 'vid': None, 'pid': None, 'serial_number':
None, 'location': None, 'manufacturer': '(Standard port types)', 'product':
None, 'interface': None}, {'device': 'COM9', 'name': 'COM9', 'description':
'USB Serial Port (COM9)', 'hwid': 'USB VID:PID=0403:6001 SER=A9SFJXJGA', 'vid':
1027, 'pid': 24577, 'serial_number': 'A9SFJXJGA', 'location': None,
'manufacturer': 'FTDI', 'product': None, 'interface': None}, {'device': 'COM4',
'name': 'COM4', 'description': 'com0com - serial port emulator (COM4)', 'hwid':
'COM0COM\\PORT\\CNCA1', 'vid': None, 'pid': None, 'serial_number': None,
'location': None, 'manufacturer': 'Vyacheslav Frolov', 'product': None,
'interface': None}, {'device': 'COM3', 'name': 'COM3', 'description': 'com0com
- serial port emulator (COM3)', 'hwid': 'COM0COM\\PORT\\CNCB1', 'vid': None,
'pid': None, 's
erial_number': None, 'location': None, 'manufacturer': 'Vyacheslav Frolov',
'product': None, 'interface': None}, {'device': 'COM6', 'name': 'COM6',
'description': 'USB-SERIAL CH340 (COM6)', 'hwid': 'USB VID:PID=1A86:7523 SER=
LOCATION=1-1', 'vid': 6790, 'pid': 29987, 'serial_number': '', 'location':
'1-1', 'manufacturer': 'wch.cn', 'product': None, 'interface': None},
{'device': 'COM13', 'name': 'COM13', 'description': 'USB Serial Port (COM13)',
'hwid': 'USB VID:PID=0403:6001 SER=AB0LC5EGA', 'vid': 1027, 'pid': 24577,
'serial_number': 'AB0LC5EGA', 'location': None, 'manufacturer': 'FTDI',
'product': None, 'interface': None}]
[2025-05-11 20:30:03,717] chirp.wxui.clone - DEBUG: Selected <class
'chirp.drivers.kenwood_live.TM281Radio'>
[2025-05-11 20:30:03,718] chirp.wxui.clone - DEBUG: Automatically chose
last-used port COM13 for Kenwood TM-281
[2025-05-11 20:30:05,448] chirp.wxui.clone - DEBUG: Using port 'COM13'
[2025-05-11 20:30:05,448] chirp.wxui.clone - DEBUG: Selected <class
'chirp.drivers.kenwood_live.TM281Radio'>
[2025-05-11 20:30:05,455] chirp.wxui.clone - DEBUG: Serial opened:
Serial<id=0x1a9ae406230, open=True>(port='COM13', baudrate=9600, bytesize=8,
parity='N', stopbits=1, timeout=0.25, xonxoff=False, rtscts=True, dsrdtr=False)
(rts=True dtr=True)
[2025-05-11 20:30:05,455] chirp.wxui.clone - DEBUG: Selected <class
'chirp.drivers.kenwood_live.TM281Radio'>
[2025-05-11 20:30:05,455] chirp.wxui.clone - DEBUG: Recorded last-used port
COM13 for Kenwood TM-281
[2025-05-11 20:30:05,456] chirp.drivers.kenwood_live - INFO: Trying ID at baud
4800 with delimiter "('\r', ' ')"
[2025-05-11 20:30:05,571] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID
[2025-05-11 20:30:06,649] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:30:06,649] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:30:06,649] chirp.drivers.kenwood_live - INFO: Trying ID at baud
115200 with delimiter "('\r', ' ')"
[2025-05-11 20:30:06,756] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID
[2025-05-11 20:30:07,839] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:30:07,839] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:30:07,839] chirp.drivers.kenwood_live - INFO: Trying ID at baud
57600 with delimiter "('\r', ' ')"
[2025-05-11 20:30:07,947] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID
[2025-05-11 20:30:09,027] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:30:09,027] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:30:09,027] chirp.drivers.kenwood_live - INFO: Trying ID at baud
38400 with delimiter "('\r', ' ')"
[2025-05-11 20:30:09,134] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID
[2025-05-11 20:30:10,216] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:30:10,216] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:30:10,216] chirp.drivers.kenwood_live - INFO: Trying ID at baud
19200 with delimiter "('\r', ' ')"
[2025-05-11 20:30:10,324] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID
[2025-05-11 20:30:11,400] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:30:11,400] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:30:11,400] chirp.drivers.kenwood_live - INFO: Trying ID at baud
9600 with delimiter "('\r', ' ')"
[2025-05-11 20:30:11,508] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID
[2025-05-11 20:30:12,591] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:30:12,591] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:30:12,591] chirp.drivers.kenwood_live - INFO: Trying ID at baud
4800 with delimiter "(';', '')"
[2025-05-11 20:30:12,700] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID;
[2025-05-11 20:30:13,775] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:30:13,775] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:30:13,775] chirp.drivers.kenwood_live - INFO: Trying ID at baud
115200 with delimiter "(';', '')"
[2025-05-11 20:30:13,883] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID;
[2025-05-11 20:30:14,956] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:30:14,956] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:30:14,956] chirp.drivers.kenwood_live - INFO: Trying ID at baud
57600 with delimiter "(';', '')"
[2025-05-11 20:30:15,063] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID;
[2025-05-11 20:30:16,140] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:30:16,140] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:30:16,140] chirp.drivers.kenwood_live - INFO: Trying ID at baud
38400 with delimiter "(';', '')"
[2025-05-11 20:30:16,248] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID;
[2025-05-11 20:30:17,328] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:30:17,328] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:30:17,328] chirp.drivers.kenwood_live - INFO: Trying ID at baud
19200 with delimiter "(';', '')"
[2025-05-11 20:30:17,436] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID;
[2025-05-11 20:30:18,511] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:30:18,511] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:30:18,511] chirp.drivers.kenwood_live - INFO: Trying ID at baud
9600 with delimiter "(';', '')"
[2025-05-11 20:30:18,619] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID;
[2025-05-11 20:30:19,697] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:30:19,697] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:30:19,697] chirp.wxui.clone - ERROR: Failed to open serial: No
response from radio
Traceback (most recent call last):
File "chirp\wxui\clone.py", line 808, in _actual_action
File "chirp\drivers\kenwood_live.py", line 101, in __init__
File "chirp\drivers\kenwood_live.py", line 157, in get_id
chirp.errors.RadioError: No response from radio
[2025-05-11 20:30:26,285] chirp.wxui.bugreport - DEBUG: Created page start
[2025-05-11 20:30:26,292] chirp.wxui.bugreport - DEBUG: Created page creds
[2025-05-11 20:30:26,316] chirp.wxui.bugreport - DEBUG: Created page existbug
[2025-05-11 20:30:26,326] chirp.wxui.bugreport - DEBUG: Created page update
[2025-05-11 20:30:31,384] chirp.wxui.bugreport - DEBUG: Created page newbug
[2025-05-11 20:40:50,755] chirp.wxui.clone - DEBUG: All system ports:
[{'device': 'COM1', 'name': 'COM1', 'description': 'Communications Port
(COM1)', 'hwid': 'ACPI\\PNP0501\\1', 'vid': None, 'pid': None, 'serial_number':
None, 'location': None, 'manufacturer': '(Standard port types)', 'product':
None, 'interface': None}, {'device': 'COM9', 'name': 'COM9', 'description':
'USB Serial Port (COM9)', 'hwid': 'USB VID:PID=0403:6001 SER=A9SFJXJGA', 'vid':
1027, 'pid': 24577, 'serial_number': 'A9SFJXJGA', 'location': None,
'manufacturer': 'FTDI', 'product': None, 'interface': None}, {'device': 'COM4',
'name': 'COM4', 'description': 'com0com - serial port emulator (COM4)', 'hwid':
'COM0COM\\PORT\\CNCA1', 'vid': None, 'pid': None, 'serial_number': None,
'location': None, 'manufacturer': 'Vyacheslav Frolov', 'product': None,
'interface': None}, {'device': 'COM3', 'name': 'COM3', 'description': 'com0com
- serial port emulator (COM3)', 'hwid': 'COM0COM\\PORT\\CNCB1', 'vid': None,
'pid': None, 's
erial_number': None, 'location': None, 'manufacturer': 'Vyacheslav Frolov',
'product': None, 'interface': None}, {'device': 'COM6', 'name': 'COM6',
'description': 'USB-SERIAL CH340 (COM6)', 'hwid': 'USB VID:PID=1A86:7523 SER=
LOCATION=1-1', 'vid': 6790, 'pid': 29987, 'serial_number': '', 'location':
'1-1', 'manufacturer': 'wch.cn', 'product': None, 'interface': None},
{'device': 'COM13', 'name': 'COM13', 'description': 'USB Serial Port (COM13)',
'hwid': 'USB VID:PID=0403:6001 SER=AB0LC5EGA', 'vid': 1027, 'pid': 24577,
'serial_number': 'AB0LC5EGA', 'location': None, 'manufacturer': 'FTDI',
'product': None, 'interface': None}]
[2025-05-11 20:40:50,974] chirp.wxui.clone - DEBUG: Selected <class
'chirp.drivers.kenwood_live.TM281Radio'>
[2025-05-11 20:40:50,974] chirp.wxui.clone - DEBUG: Automatically chose
last-used port COM13 for Kenwood TM-281
[2025-05-11 20:40:58,620] chirp.wxui.clone - DEBUG: Using port 'COM13'
[2025-05-11 20:40:58,620] chirp.wxui.clone - DEBUG: Selected <class
'chirp.drivers.kenwood_live.TM281Radio'>
[2025-05-11 20:40:58,620] chirp.wxui.clone - DEBUG: Serial opened:
Serial<id=0x1a9ae761750, open=True>(port='COM13', baudrate=9600, bytesize=8,
parity='N', stopbits=1, timeout=0.25, xonxoff=False, rtscts=True, dsrdtr=False)
(rts=True dtr=True)
[2025-05-11 20:40:58,620] chirp.wxui.clone - DEBUG: Selected <class
'chirp.drivers.kenwood_live.TM281Radio'>
[2025-05-11 20:40:58,620] chirp.wxui.clone - DEBUG: Recorded last-used port
COM13 for Kenwood TM-281
[2025-05-11 20:40:58,620] chirp.drivers.kenwood_live - INFO: Trying ID at baud
4800 with delimiter "('\r', ' ')"
[2025-05-11 20:40:58,730] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID
[2025-05-11 20:40:59,828] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:40:59,828] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:40:59,828] chirp.drivers.kenwood_live - INFO: Trying ID at baud
115200 with delimiter "('\r', ' ')"
[2025-05-11 20:40:59,938] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID
[2025-05-11 20:41:01,036] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:41:01,036] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:41:01,036] chirp.drivers.kenwood_live - INFO: Trying ID at baud
57600 with delimiter "('\r', ' ')"
[2025-05-11 20:41:01,146] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID
[2025-05-11 20:41:02,245] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:41:02,245] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:41:02,245] chirp.drivers.kenwood_live - INFO: Trying ID at baud
38400 with delimiter "('\r', ' ')"
[2025-05-11 20:41:02,355] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID
[2025-05-11 20:41:03,439] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:41:03,439] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:41:03,439] chirp.drivers.kenwood_live - INFO: Trying ID at baud
19200 with delimiter "('\r', ' ')"
[2025-05-11 20:41:03,549] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID
[2025-05-11 20:41:04,584] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:41:04,584] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:41:04,584] chirp.drivers.kenwood_live - INFO: Trying ID at baud
9600 with delimiter "('\r', ' ')"
[2025-05-11 20:41:04,691] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID
[2025-05-11 20:41:05,723] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:41:05,723] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:41:05,723] chirp.drivers.kenwood_live - INFO: Trying ID at baud
4800 with delimiter "(';', '')"
[2025-05-11 20:41:05,826] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID;
[2025-05-11 20:41:06,900] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:41:06,900] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:41:06,900] chirp.drivers.kenwood_live - INFO: Trying ID at baud
115200 with delimiter "(';', '')"
[2025-05-11 20:41:07,010] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID;
[2025-05-11 20:41:08,017] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:41:08,017] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:41:08,017] chirp.drivers.kenwood_live - INFO: Trying ID at baud
57600 with delimiter "(';', '')"
[2025-05-11 20:41:08,127] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID;
[2025-05-11 20:41:09,185] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:41:09,185] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:41:09,185] chirp.drivers.kenwood_live - INFO: Trying ID at baud
38400 with delimiter "(';', '')"
[2025-05-11 20:41:09,295] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID;
[2025-05-11 20:41:10,337] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:41:10,337] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:41:10,337] chirp.drivers.kenwood_live - INFO: Trying ID at baud
19200 with delimiter "(';', '')"
[2025-05-11 20:41:10,447] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID;
[2025-05-11 20:41:11,528] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:41:11,528] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:41:11,528] chirp.drivers.kenwood_live - INFO: Trying ID at baud
9600 with delimiter "(';', '')"
[2025-05-11 20:41:11,637] chirp.drivers.kenwood_live - DEBUG: PC->RADIO: ID;
[2025-05-11 20:41:12,711] chirp.drivers.kenwood_live - ERROR: Timeout waiting
for data
[2025-05-11 20:41:12,711] chirp.drivers.kenwood_live - ERROR: Giving up
[2025-05-11 20:41:12,711] chirp.wxui.clone - ERROR: Failed to open serial: No
response from radio
Traceback (most recent call last):
File "chirp\wxui\clone.py", line 808, in _actual_action
File "chirp\drivers\kenwood_live.py", line 101, in __init__
File "chirp\drivers\kenwood_live.py", line 157, in get_id
chirp.errors.RadioError: No response from radio
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