[Elecraft] Fw: K2: "Pop" when switching certain bands

[Jim KO5V]

I forgot to mention that the K2 is connected to my KPA100, so I'll recheck it without the amp.

73, Jim KO5V

-----Forwarded Message-----
>From: Jim KO5V <ko5v at earthlink.net>
>Sent: Jun 30, 2019 2:55 PM
>To: Elecraft List <elecraft at mailman.qth.net>
>Subject: K2: "Pop" when switching certain bands
>
>Good Afternoon,
>
>Today I noticed a "pop" on the audio of my K2 when I changed in and out 15M, so I checked the switching on all bands:
>
>When changing from 15M to 12M or 17M it is fairly loud. Changing from 12M or 17M to 15M causes a fainter "pop". A much more attenuated "pop" happens when changing from 14M to 10M, and also from 10M back to 14m.
>
>Also, on 15M, when changing from VFO B to VFO A I hear a loud "pop", but it does not happen going from A to B. 
>
>The fainter "pops" might have always been there, but the ones on 15M are loud enough to cause the clip light on my DSP to turn red.
>
>I wonder if it has something to do with diodes across relays, or the relays themselves. 
>
>Any more ideas?  Thanks in advance.
>
>73, Jim KO5V
>