[Elecraft] K3s in WPX M/S - WOW!

[Vic K2VCO]

It is not per-filter. It is a single setting which can be changed by 
pressing '7' regardless of what filter is selected at the time.

In my opinion, it's best to set it ON now until the bug that causes gain 
loss in the two sharpest DSP bandwidth settings when it's off is fixed. 
After that, you can try the two options and see which one you prefer.

David Wilburn wrote:
> Depending on the different bw settings it is off or on.  Additionally it 
> toggles if you hit it one too many times.  Could we get a list of when 
> it should be on vs. off?  Is it safe to assume that if you are at a bw 
> smaller than a xtal filter, it should be on?
> 
> 
> Dave Wilburn
> K4DGW
> K2/100 - S/N 5982
> K3/100 - S/N 766
> 
> 
> 
> Vic K2VCO wrote:
>> Bob Evans wrote:
>>>   I
>>> never thought I'd be so happy with a 150 Hz filter bandwidth.  
>>> Honestly, the
>>> 100 Hz and 50 Hz bandwidths were useless though as the signal level 
>>> dropped
>>> significantly.  It seemed much better a few firmware versions ago, 
>>> but 150
>>> Hz worked fine for us...I was just getting "greedy" by trying to use 
>>> the 100
>>> and 50 Hz BW.
>>
>> I have just found out that there is a bug that causes a gain reduction 
>> just for these two bandwidths if they are set for FIR filters and not 
>> IIR.
>>
>> You can fix it now by switching IIR ON, and when Elecraft fixes the 
>> bug you can choose either IIR or FIR for these filters as you prefer.
>>
>> To switch between IIR and FIR, tap '7' on the keypad when you're in 
>> any filter setup menu entry (e.g., CONFIG:FLx BW). You want it to say 
>> IIR ON.
-- 
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco