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
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