jarhead_jeeper
Newbie
- Joined
- Feb 3, 2025
- Messages
- 1
Hello. First post. I'm sorry if this has been covered before but I didn't find this problem here before so I'm going to ask about it.
I have two separate Icom radios that will not transmit on some channels (frequencies) but work fine on others. This leads me to believe that there is something in either my .icf file of possibly something in the radio itself causing it. The first radio I experienced this with is an IC-F6121D mobile radio. It operates fine when setup with amateur radio frequencies but it will not transmit on GMRS frequencies. The transmit inhibit is not selected in the programming software.
The other radio is a IC-F4161DS radio. I actually have several of these radios (I think I have 6 total) but only some have a similar problem as the 6121D. It isn't an identical problem though. With the 4161DS radios I have a group that I named "private" and within that group I have a couple frequencies set at 440.5 and 440.525 and set as digital. One radio will flash the display and not transmit on either frequency in that group but one radio will transmit once or twice before it will start flashing the screen and no longer transmit on either frequency in that group. When I turn the knob to select a different group both work fine on any of those frequencies in those groups.
I used the same .icf to program three IC-F4161 radios that I'm testing and have three different results. One radio works always on all programmed frequencies, one radio will never transmit on either frequency in the "private" group and one radio will transmit once (or sometimes twice) and then stop transmitting in that group.
Where should I be looking to figure out what is causing this problem on either the mobile or the HT radios?
I have two separate Icom radios that will not transmit on some channels (frequencies) but work fine on others. This leads me to believe that there is something in either my .icf file of possibly something in the radio itself causing it. The first radio I experienced this with is an IC-F6121D mobile radio. It operates fine when setup with amateur radio frequencies but it will not transmit on GMRS frequencies. The transmit inhibit is not selected in the programming software.
The other radio is a IC-F4161DS radio. I actually have several of these radios (I think I have 6 total) but only some have a similar problem as the 6121D. It isn't an identical problem though. With the 4161DS radios I have a group that I named "private" and within that group I have a couple frequencies set at 440.5 and 440.525 and set as digital. One radio will flash the display and not transmit on either frequency in that group but one radio will transmit once or twice before it will start flashing the screen and no longer transmit on either frequency in that group. When I turn the knob to select a different group both work fine on any of those frequencies in those groups.
I used the same .icf to program three IC-F4161 radios that I'm testing and have three different results. One radio works always on all programmed frequencies, one radio will never transmit on either frequency in the "private" group and one radio will transmit once (or sometimes twice) and then stop transmitting in that group.
Where should I be looking to figure out what is causing this problem on either the mobile or the HT radios?
