Fw: K2: "Pop" when switching certain bands

[Jim KO5V]

OK, it's the base K2, and the loudest "pop" happens when switching from VFO B to VFO A on 15M.

Sorry, I should have waited 5 minutes before sending the last email...

Thanks. Jim


-----Forwarded Message-----

>From: Jim KO5V <[hidden email]>
>Sent: Jun 30, 2019 2:59 PM
>To: Elecraft List <[hidden email]>
>Subject: Fw: K2: "Pop" when switching certain bands
>
>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 <[hidden email]>
>>Sent: Jun 30, 2019 2:55 PM
>>To: Elecraft List <[hidden email]>
>>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
>>

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