Well,
You will remember last time that I came home with a new IC-7300. I've played with it quite a bit and it seemed to be an excellent radio with very good close in signal rejection on receive.
Yesterday I was using the radio on WSJT and noticed that even though the power output was set at 40% and the audio drive levels set such that the output power was 25W, when the radio entered TX the PO meter shot up to 100%, then almost immediately back to 0% and then crept up over 3-4 seconds to the 25% it should be at. This was looking like the worst ALC overshoot I had ever seen - I wondered if this was something to do with the new firmware upgrade.
Anyhow, a few minutes later the radio started to "re-boot" on entering TX. I checked all the obvious things like PSU voltage and SWR et cetera, then I simplified the setup.
I have a very simple PC based audio tone generator so I set that up to generate a 1200Hz tone on the USB audio device from the IC-7300, then when I put the radio into PTT using either a CAT command or the mic PTT the radio "re-boots".
Here's a video showing this:
So, the radio has gone back to Icom....
Here's Bonnie Dog and Miss Luna Cat who appear to be the very best of friends:
Local conditions.
You will remember last time that I came home with a new IC-7300. I've played with it quite a bit and it seemed to be an excellent radio with very good close in signal rejection on receive.
Yesterday I was using the radio on WSJT and noticed that even though the power output was set at 40% and the audio drive levels set such that the output power was 25W, when the radio entered TX the PO meter shot up to 100%, then almost immediately back to 0% and then crept up over 3-4 seconds to the 25% it should be at. This was looking like the worst ALC overshoot I had ever seen - I wondered if this was something to do with the new firmware upgrade.
Anyhow, a few minutes later the radio started to "re-boot" on entering TX. I checked all the obvious things like PSU voltage and SWR et cetera, then I simplified the setup.
I have a very simple PC based audio tone generator so I set that up to generate a 1200Hz tone on the USB audio device from the IC-7300, then when I put the radio into PTT using either a CAT command or the mic PTT the radio "re-boots".
Here's a video showing this:
So, the radio has gone back to Icom....
Here's Bonnie Dog and Miss Luna Cat who appear to be the very best of friends:
Local conditions.