v2.32 Beta and DSP filtering

[Gary, W7TEA]

I notice an appreciable drop in audio output when I narrow the DSP filter from 150hz to 100hz.  AFV readings go from 971 to 343 on a 50uv signal from a XG-2.  The 200hz filter is OFF. RX equalization is flat.

I believe this is new in 2.32 but wouldn't swear to it and, of course, I trashed the prior beta firmware.  Reloaded all firmware again this morning and the effect is still the same.

Anyone else notice this?  Thanks.

73,   Gary W7TEA

[N4LQ-2]

Gary:
 Under the same conditions, my AFV is almost flat.

Steve Ellington
[hidden email]
----- Original Message -----
From: "W7TEA" <[hidden email]>
To: <[hidden email]>
Sent: Friday, August 29, 2008 11:13 AM
Subject: [Elecraft] v2.32 Beta and DSP filtering

>
> I notice an appreciable drop in audio output when I narrow the DSP filter
> from 150hz to 100hz.  AFV readings go from 971 to 343 on a 50uv signal
> from
> a XG-2.  The 200hz filter is OFF. RX equalization is flat.
>
> I believe this is new in 2.32 but wouldn't swear to it and, of course, I
> trashed the prior beta firmware.  Reloaded all firmware again this morning
> and the effect is still the same.
>
> Anyone else notice this?  Thanks.
>
> 73,   Gary W7TEA
> --
> View this message in context:
> http://n2.nabble.com/v2.32-Beta-and-DSP-filtering-tp792402p792402.html
> Sent from the Elecraft mailing list archive at Nabble.com.
>
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[dj7mgq]

Hi Gary,

which DSP filter type do have activated for the narrowest bandwidths? Do
both types (FIR & IIR) do this?

vy 73 de toby

W7TEA wrote:

> I notice an appreciable drop in audio output when I narrow the DSP filter
> from 150hz to 100hz.  AFV readings go from 971 to 343 on a 50uv signal from
> a XG-2.  The 200hz filter is OFF. RX equalization is flat.
>
> I believe this is new in 2.32 but wouldn't swear to it and, of course, I
> trashed the prior beta firmware.  Reloaded all firmware again this morning
> and the effect is still the same.
>
> Anyone else notice this?  Thanks.
>
> 73,   Gary W7TEA

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[Gary, W7TEA]

I use FIR but both types do it.

73, Gary W7TEA


<quote author="Toby Deinhardt">
Hi Gary,

which DSP filter type do have activated for the narrowest bandwidths? Do
both types (FIR & IIR) do this?

vy 73 de toby

[Gary, W7TEA]

I thought I had RxEQ flat but did not.  I had the 400
and 800hz segments peaked +6dB.  That's inconsistent
with the narrowest filters so all is well now.

Thanks for the responses, on and off the list and to
Wayne and Lyle's immediate help!

73, Gary W7TEA



<quote author="W7TEA">
I use FIR but both types do it.

73, Gary W7TEA

Toby Deinhardt wrote

Hi Gary,

which DSP filter type do have activated for the narrowest bandwidths? Do
both types (FIR & IIR) do this?

vy 73 de toby