Here’s an Icom hand mic caution and I am not bashing Icom for this quirk, but I do think it is something that needs to be known. When using the supplied hand mic with the Icom 7300 or Icom 7610 the up/down buttons are active when transmitting in phone modes. Whether you are using memory mode or not, if the buttons are pressed accidentally when transmitting the radio will QSY.
Icom Hand Mic Caution
Hams have accidentally QSY’d while transmitting without realizing it. This results in interfering with others and could possibly damage the radio if not caught right away.
This will also happen with other microphones that have up/down buttons.
My Icom 7000 will also QSY while transmitting with the supplied hand mic.
If it’s happens to you and you think it’s necessary, there is a workaround.
Hand Mic Workaround
The workaround is to disable the buttons by making them active for CW. There is no other option I can see to disable the microphone up/down buttons while transmitting in phone modes.
If you wish to disable the buttons, follow the instructions in the manual. Set the Up/Down buttons to use as a CW key. Icom 7300, page 4-21 of the full manual. Icom 7610, page 16 of the full manual. See the video below.
Most Hams do not use the hand mics supplied with these radios, but I have found many do. With Field Day coming up, even more Hams and clubs may be using the supplied hand mic.
Although I have not personally been subject to this issue, I think it is important for Hams to know. Maybe Icom will address this in a firmware update.
Icom Hand Mic Caution Video
A special thanks goes out to Jerry, KU9S for pointing this out to me. After I posted the issue to a couple of online Ham radio groups, others came forward and confirmed the same. It is more common than I thought.
Flaw or Oversight?
I don’t believe it is a flaw because it happens on all of my Icom transceivers. It is designed this way. Why? Only Icom knows.
Could it be just an oversight? IDK.
It’s been relayed to me that this issue does not happen with another brand radio. In those transceivers the up/down buttons are automatically disabled when transmitting.
I hope you find this informative and useful.
Thank you again for coming by and I appreciate all of the comments. If you have a question please comment below. I will do my best to answer it and your experience will undoubtedly help others as well.