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Data A filter questions

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n7ws

Data A filter questions

I don't do much PSK operation but I was just fiddling with it and noted something puzzling (to me anyway).

Data mode A, although basically a USB mode, defaults to CW-like filtering. The "NORM" setting is 400 Hz (my CW filter width, I guess), "Shift" is 1.5 KHz (and very limited) and "LO" and "HI" are locked out. Considering how much PSK operation is done, this is quite limiting.

Is there some compelling reason that I'm overlooking why the default for this mode shouldn't be the same as SSB, with the options to have both SHIFT/WIDTH and HI and LO CUT?

Wes N7WS

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MontyS

Re: Data A filter questions

You have probably selected AFSK mode, not DataA. Hold the "DATA MD" button and use the VFO B knob to select Data A after selecting "Data A" with the Mode button.
Monty K2DLJ

On Dec 16, 2010, at 1:01 PM, Wes Stewart wrote:

> I don't do much PSK operation but I was just fiddling with it and noted something puzzling (to me anyway).
>
> Data mode A, although basically a USB mode, defaults to CW-like filtering. The "NORM" setting is 400 Hz (my CW filter width, I guess), "Shift" is 1.5 KHz (and very limited) and "LO" and "HI" are locked out. Considering how much PSK operation is done, this is quite limiting.
>
> Is there some compelling reason that I'm overlooking why the default for this mode shouldn't be the same as SSB, with the options to have both SHIFT/WIDTH and HI and LO CUT?
>
> Wes N7WS

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n7ws

Re: Data A filter questions

No I have not selected AFSK.

--- On Thu, 12/16/10, Monty Shultes <[hidden email]> wrote:

> From: Monty Shultes <[hidden email]>
> Subject: Re: [Elecraft] Data A filter questions
> To: "Wes Stewart" <[hidden email]>, "[hidden email]" <[hidden email]>
> Date: Thursday, December 16, 2010, 12:11 PM
> You have probably selected AFSK mode,
> not DataA. Hold the "DATA MD" button and use the VFO B
> knob to select Data A after selecting "Data A" with the Mode
> button.
> Monty K2DLJ
>
> On Dec 16, 2010, at 1:01 PM, Wes Stewart wrote:
>
> > I don't do much PSK operation but I was just fiddling
> with it and noted something puzzling (to me anyway).
> >
> > Data mode A, although basically a USB mode, defaults
> to CW-like filtering. The "NORM" setting is 400 Hz (my
> CW filter width, I guess), "Shift" is 1.5 KHz (and very
> limited) and "LO" and "HI" are locked out. Considering
> how much PSK operation is done, this is quite limiting.
> >
> > Is there some compelling reason that I'm overlooking
> why the default for this mode shouldn't be the same as SSB,
> with the options to have both SHIFT/WIDTH and HI and LO
> CUT?
> >
> > Wes N7WS
>
>

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Don Wilhelm-4

Re: Data A filter questions

In reply to this post by n7ws

Wes,

Yes, the NORM for DATA A mode is 400 Hz width, but my HI and LO knobs
are not locked out (just tap either of the 2 knobs to change to HI and
LO from SHIFT and WIDTH).
My DATA A filter width stays the same as I last used it, and I usually
have the I/II presets with one set wide and the other set narrow and
switch between them as the situation requires. Yes, I try to move the
VFO so the station I am working appears near 1500 Hz on the waterfall
display.

I prefer to do most tuning in PSK operation with the VFO knob - I run
with the AGC on, and unlike when PSK31 started, there are now many
stations running with power in excess of 50 watts, so those stations
cause AGC pumping if I set the passband to the full SSB width. The
presence of those "Power PSK Stations" has caused me to change my
operating habits.

Your choices may be different than mine, but I am quite happy with the
NORM default for DATA A on the K3.

73,
Don W3FPR

On 12/16/2010 1:01 PM, Wes Stewart wrote:
> I don't do much PSK operation but I was just fiddling with it and noted something puzzling (to me anyway).
>
> Data mode A, although basically a USB mode, defaults to CW-like filtering. The "NORM" setting is 400 Hz (my CW filter width, I guess), "Shift" is 1.5 KHz (and very limited) and "LO" and "HI" are locked out. Considering how much PSK operation is done, this is quite limiting.
>
> Is there some compelling reason that I'm overlooking why the default for this mode shouldn't be the same as SSB, with the options to have both SHIFT/WIDTH and HI and LO CUT?
>
> Wes N7WS
>
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n7ws

Re: Data A filter questions

Don, and I'll reply to Monty here too,

There is no question that I'm in Data A and my HI and LO controls do not function. I seldom use PSK, I prefer RTTY, but I'm sure that this didn't happen in the past. Just for giggles I rolled back my firmware to 4.0 sumptin' and I had the same issue.

I generally leave the VFO set for example to 14.070 and click tune on the waterfall, but use HI and LO cut to select the signal of interest. As it stands the SHIFT range is so limited that I can't isolate lower tones.

Wes

--- On Thu, 12/16/10, Don Wilhelm <[hidden email]> wrote:

> From: Don Wilhelm <[hidden email]>
> Subject: Re: [Elecraft] Data A filter questions
> To: "Wes Stewart" <[hidden email]>
> Cc: "Elecraft Reflector" <[hidden email]>
> Date: Thursday, December 16, 2010, 12:58 PM
> Wes,
>
> Yes, the NORM for DATA A mode is 400 Hz width, but my HI
> and LO knobs
> are not locked out (just tap either of the 2 knobs to
> change to HI and
> LO from SHIFT and WIDTH).
> My DATA A filter width stays the same as I last used it,
> and I usually
> have the I/II presets with one set wide and the other set
> narrow and
> switch between them as the situation requires. Yes, I
> try to move the
> VFO so the station I am working appears near 1500 Hz on the
> waterfall
> display.
>
> I prefer to do most tuning in PSK operation with the VFO
> knob - I run
> with the AGC on, and unlike when PSK31 started, there are
> now many
> stations running with power in excess of 50 watts, so those
> stations
> cause AGC pumping if I set the passband to the full SSB
> width. The
> presence of those "Power PSK Stations" has caused me to
> change my
> operating habits.
>
> Your choices may be different than mine, but I am quite
> happy with the
> NORM default for DATA A on the K3.
>
> 73,
> Don W3FPR
>
> On 12/16/2010 1:01 PM, Wes Stewart wrote:
> > I don't do much PSK operation but I was just fiddling
> with it and noted something puzzling (to me anyway).
> >
> > Data mode A, although basically a USB mode, defaults
> to CW-like filtering. The "NORM" setting is 400 Hz (my
> CW filter width, I guess), "Shift" is 1.5 KHz (and very
> limited) and "LO" and "HI" are locked out. Considering
> how much PSK operation is done, this is quite limiting.
> >
> > Is there some compelling reason that I'm overlooking
> why the default for this mode shouldn't be the same as SSB,
> with the options to have both SHIFT/WIDTH and HI and LO
> CUT?
> >
> > Wes N7WS
> >
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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>
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>

Mike Harris

Re: Data A filter questions

In reply to this post by n7ws

Hi Wes,

Here in TX DATA mode DATA A I have full range of Shift: FC
400-2600Hz Width: 50-4000Hz

The LO and HI limits vary with BW but basically as much as you want.

I regularly set the BW to 150Hz and SHIFT slowly up the band working
stations as they appear on the waterfall.

Regards,

Mike VP8NO

----- Original Message -----
From: "Wes Stewart" <[hidden email]>
To: "Elecraft Reflector" <[hidden email]>
Sent: Thursday, December 16, 2010 3:01 PM
Subject: [Elecraft] Data A filter questions

I don't do much PSK operation but I was just fiddling with it and
noted something puzzling (to me anyway).

Data mode A, although basically a USB mode, defaults to CW-like
filtering. The "NORM" setting is 400 Hz (my CW filter width, I
guess), "Shift" is 1.5 KHz (and very limited) and "LO" and "HI" are
locked out. Considering how much PSK operation is done, this is
quite limiting.

Is there some compelling reason that I'm overlooking why the default
for this mode shouldn't be the same as SSB, with the options to have
both SHIFT/WIDTH and HI and LO CUT?

Wes N7WS

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Don Wilhelm-4

Re: Data A filter questions

In reply to this post by n7ws

Wes,

Can you toggle between HI/LO and SHIFT/WIDTH when in SSB mode?
I can shift between the two in all data modes except FSK D where they
stay in SHIFT/WIDTH.

Just wondering if your K3 is broken.

73,
Don W3FPR

On 12/16/2010 3:29 PM, Wes Stewart wrote:
> Don, and I'll reply to Monty here too,
>
> There is no question that I'm in Data A and my HI and LO controls do not function. I seldom use PSK, I prefer RTTY, but I'm sure that this didn't happen in the past. Just for giggles I rolled back my firmware to 4.0 sumptin' and I had the same issue.
>
> I generally leave the VFO set for example to 14.070 and click tune on the waterfall, but use HI and LO cut to select the signal of interest. As it stands the SHIFT range is so limited that I can't isolate lower tones.
>
> Wes
>
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Rick Prather-2

Re: Data A filter questions

In reply to this post by n7ws

Wes,

What filter (s) do you have enabled for DATA?

Sounds like you have only your 400 enabled.

Rick
K6LE

On 12/16/2010, at 12:29 , Wes Stewart wrote:

> Don, and I'll reply to Monty here too,
>
> There is no question that I'm in Data A and my HI and LO controls do not function. I seldom use PSK, I prefer RTTY, but I'm sure that this didn't happen in the past. Just for giggles I rolled back my firmware to 4.0 sumptin' and I had the same issue.
>
> I generally leave the VFO set for example to 14.070 and click tune on the waterfall, but use HI and LO cut to select the signal of interest. As it stands the SHIFT range is so limited that I can't isolate lower tones.
>
> Wes
>

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n7ws

Re: Data A filter questions

Rick,

All three installed filters, 6 KHz, 2.8 KHz and 400 Hz are enabled for data modes.

Wes

--- On Thu, 12/16/10, Rick Prather <[hidden email]> wrote:

> From: Rick Prather <[hidden email]>
> Subject: Re: [Elecraft] Data A filter questions
> To: "Wes Stewart" <[hidden email]>
> Cc: "elecraft Reflector" <[hidden email]>
> Date: Thursday, December 16, 2010, 3:19 PM
> Wes,
>
> What filter (s) do you have enabled for DATA?
>
> Sounds like you have only your 400 enabled.
>
> Rick
> K6LE
>

n7ws

Re: Data A filter questions

In reply to this post by Don Wilhelm-4

Don,

Yes, in SSB I can toggle between Shift/Width to Lo/Hi.

In data modes I cannot. I never paid attention to AFSK A before since I use 915 Hz for Mark and I never found it necessary to change the default shift of 1 KHz or to toggle to Lo/Hi.

Here is a clue for the guys I hope start looking into this. I cannot toggle filter modes in CW either *if PB CTRL is set to .01, but can toggle if PB CTRL is set to .05.*

Unfortunately, this isn't a fix for the data modes.

Wes N7WS

--- On Thu, 12/16/10, Don Wilhelm <[hidden email]> wrote:

> Wes,
>
> Can you toggle between HI/LO and SHIFT/WIDTH when in SSB
> mode?
> I can shift between the two in all data modes except FSK D
> where they
> stay in SHIFT/WIDTH.
>
> Just wondering if your K3 is broken.
>
> 73,
> Don W3FPR
>
> On 12/16/2010 3:29 PM, Wes Stewart wrote:
> > Don, and I'll reply to Monty here too,
> >
> > There is no question that I'm in Data A and my HI and
> LO controls do not function. I seldom use PSK, I
> prefer RTTY, but I'm sure that this didn't happen in the
> past. Just for giggles I rolled back my firmware to
> 4.0 sumptin' and I had the same issue.
> >
> > I generally leave the VFO set for example to 14.070
> and click tune on the waterfall, but use HI and LO cut to
> select the signal of interest. As it stands the SHIFT
> range is so limited that I can't isolate lower tones.
> >
> > Wes

Joe Subich, W4TV-4

Re: Data A filter questions

Wes,

> Here is a clue for the guys I hope start looking into this. I cannot
> toggle filter modes in CW either *if PB CTRL is set to .01, but can
> toggle if PB CTRL is set to .05.*

That is correct operation. If PB CTRL = .01, HI/LO is disabled. You
will find that information in the firmware release notes when the 10 Hz
step was first released (MCU 3.25/DSP 2.21).

"Applies to CW and DATA only; LOCUT/HICUT cannot be used when 10 HZ
shift steps are in effect; Width steps remain 50 Hz in all cases"

As to your 400 Hz filter, that is the default in all data modes. The
width can be changed easily by using the "Width" knob or pressing XFIL
to select the 2800 Hz roofing filter ... I program the PSK start-up
macro in DXLab Suite/WinWarbler to set the bandwidth to 2800 Hz when
ever the mode is set to PSK (or the K3 is set to DATA A).

73,

... Joe, W4TV

On 12/16/2010 10:58 PM, Wes Stewart wrote:

> Don,
>
> Yes, in SSB I can toggle between Shift/Width to Lo/Hi.
>
> In data modes I cannot. I never paid attention to AFSK A before since I use 915 Hz for Mark and I never found it necessary to change the default shift of 1 KHz or to toggle to Lo/Hi.
>
> Here is a clue for the guys I hope start looking into this. I cannot toggle filter modes in CW either *if PB CTRL is set to .01, but can toggle if PB CTRL is set to .05.*
>
> Unfortunately, this isn't a fix for the data modes.
>
> Wes N7WS
>
> --- On Thu, 12/16/10, Don Wilhelm<[hidden email]> wrote:
>
>> Wes,
>>
>> Can you toggle between HI/LO and SHIFT/WIDTH when in SSB
>> mode?
>> I can shift between the two in all data modes except FSK D
>> where they
>> stay in SHIFT/WIDTH.
>>
>> Just wondering if your K3 is broken.
>>
>> 73,
>> Don W3FPR
>>
>> On 12/16/2010 3:29 PM, Wes Stewart wrote:
>>> Don, and I'll reply to Monty here too,
>>>
>>> There is no question that I'm in Data A and my HI and
>> LO controls do not function. I seldom use PSK, I
>> prefer RTTY, but I'm sure that this didn't happen in the
>> past. Just for giggles I rolled back my firmware to
>> 4.0 sumptin' and I had the same issue.
>>>
>>> I generally leave the VFO set for example to 14.070
>> and click tune on the waterfall, but use HI and LO cut to
>> select the signal of interest. As it stands the SHIFT
>> range is so limited that I can't isolate lower tones.
>>>
>>> Wes
>
>
>
> ______________________________________________________________
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>