Eugene, This may or may not address your issue but the KAT500 user manual reports that a signal may be heard from an oscillator in the unit. The manual advises that this can be shut down when not in use by running the KAT500 Utility.
Below is the reference to Idle Sleep in the manual. *Idle SleepIn some installations a 28004.5 MHz signal may be heard from an oscillator in the KAT500. If this is an issue, you can cause the KAT500 oscillator to shut down when it is not needed. Click on Idle Sleep to put a check in the radio button. The oscillator will stop running shortly after the last key press or the last data communication with other equipment and restart automatically when needed.* *Ken* *WA2LBI* On Sat, Dec 2, 2023 at 5:14 PM W2HX <[email protected]> wrote: > Hello all, > > I have my new (to me) KAT500 up and running but I am noticing it is > introducing quite a lot of noise when "inline" but the noise is gone in > "bypass." > Here is a video I made of the situation. The video shows the issue on 60m, > but I will note, that I also checked the situation on 20m and it is the > same. The problem is significant and might prohibit me from using the > KAT500. > > Anyone know what might be going on? > https://youtu.be/5EvByZDYI3g > > > 73 Eugene W2HX > Subscribe to my Youtube Channel: https://www.youtube.com/@w2hx/videos > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
