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Bug #11585

closed

136.0 AM Band

Added by Brendan McReynolds 3 months ago. Updated 2 months ago.

Status:
Rejected
Priority:
Normal
Assignee:
-
Category:
-
Target version:
-
Start date:
10/03/2024
Due date:
% Done:

0%

Estimated time:
Chirp Version:
next
Model affected:
Baofeng 5RM
Platform:
Windows
Debug Log:
I read the instructions above:
Yes

Description

136.0 Should be either AM or FM, in this case it is to monitor Aviation.

Expected to be able to enter 136.0 as an AM mode

Error that 136.0 must be in FM

New Radio UV5-RM


Files

config.txt (1.36 KB) config.txt Brendan McReynolds, 10/03/2024 11:43 AM
Baofeng_5RM_20241003.img (61 KB) Baofeng_5RM_20241003.img Brendan McReynolds, 10/03/2024 11:43 AM
debug_log.txt (763 KB) debug_log.txt Brendan McReynolds, 10/03/2024 11:43 AM

Updated by Brendan McReynolds 3 months ago

[Uploaded from CHIRP next-20240926]

Actions #2

Updated by Dan Smith 3 months ago ยท Edited

What does the radio do if you put 136.0MHz in the VFO? CHIRP cannot control whether this radio is in AM or FM, because the radio chooses itself by the frequency. When this has come up in the past, a user confirmed that 136.0MHz was regarded as "FM" by the radio this driver is based on, and one step down from that was regarded as "AM". If you report differently for this model, then CHIRP can be updated to mirror the radio's behavior, but it cannot allow you to choose AM or FM along lines not chosen by the radio itself. If you want to do that, you need to buy a higher-quality radio.

Actions #3

Updated by Jim Unroe 3 months ago

Nearly every Chinese radio that I have dealt with the frequency range of a band is >= low limit but < high limit. The radio doesn't give you a choice of which mode to choose (AM or FM). The selection is automatic based on selected frequency. In other words only the frequencies from 108 MHz to current STEP size below 136 MHz will automatically be AM. 136 MHz and up would automatically be FM (or NFM). Neither the user or CHIRP can change that.

Actions #4

Updated by Brendan McReynolds 3 months ago

Copy that. It is indeed a radio limitation then.

Actions #5

Updated by Dan Smith 2 months ago

  • Status changed from New to Rejected
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