I can run with 400 or 250hz filters.

I have tried it with AGC fast, slow off etc.

I just think this is something that most people just never see. This was a major point of discussion a while back. I guess it is just the way the radio is. I will have to try another rig to see if I notice the same effects.

In a pileup there is no offending station they are all calling me.

I was just curious if other contesters or DXpeditioners settings might be and if they are still seeing this issue.

W0MU



On 2/21/2017 8:48 AM, Don Wilhelm wrote:
Mike,

Think about it - if there are multiple signals in the passband, the AGC will respond to the strongest, there is just no way around that fact. If the signals can be separated by the DSP, and one is really strong, that strong station may be activating the Hardware AGC. The only solution for the latter is a more narrow roofing filter - put the offending strong signal out of the passband of the roofing filter and use shift to get your sidetone for the desired signal back in order.

That may be too much "fiddling" for a run station in a contest, but it is a viable way to operate when trying to copy a weak station working close to a strong station.

73,
Don W3FPR

On 2/21/2017 9:25 AM, W0MU Mike Fatchett wrote:
We noticed again during the contest hat when 3 or 4 stations called, all
those signals would be flattened to the same level. Once you got to
where one or two stations were calling the signal level would pop up
substantially.

I have played endlessly with slope and threshold with little effect.

My K3 has the new syn boards as well and filters from 2.8 to 2.5.
Latest firmware etc.


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