[Elecraft] Help - K2 Higher Noise Level with X1 Selected

[VK1OO]

Don,

Nice to hear from you again.
I had a similar thought from Jim, W4ATK.
I'm surprised the S-Meter is showing an additional 6 bars on X1. As I'm 
listening to a quiet frequency I am assuming that's all additional 
noise. Further that that is much more than seems justified by the 
relatively difference in bandwidth.

I'm happy to simplify the question to, Why would the S Meter be showing 
that much difference?

Mike
VK1OO

On 03-Jun-12 1:16 AM, Don Wilhelm wrote:
> Mike,
>
> I can't tell from your post just how much increase in noise you are 
> hearing.
> There will be an increase in the total noise heard just because the 
> bandwidth is increased - you will hear the total noise in the 
> passband, and when the passband is widened, the total noise will 
> increase.
>
> OTOH, if the increase is extreme, that would indicate a problem.
>
> 73,
> Don W3FPR
>
> On 6/2/2012 6:02 AM, VK1OO wrote:
>> Hi,
>>
>> Another interesting problem with the K2.  I've noticed that when
>> switching between the KSB2 filters, X1-X4, that there seems to be more
>> background noise on X1. And there is a similar increase in S meter bars.
>> On a quiet frequency with X1 selected, the S meter shows S8; X2-X4 
>> show S2.
>> I'd certainly appreciate any suggestions about where to start
>> troubleshooting this one.
>>
>>
>