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Re: [Moon-net] Elecraft K3 Presets/Settings for JT65B / EME

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W7GJ, Lance

Re: [Moon-net] Elecraft K3 Presets/Settings for JT65B / EME

Hallo Udo,

The K3 is a GREAT rig for JT65, because it needs no external interface. It is the
best radio I have ever used for JT65 because of the very flat passband - I can easily
see callers plus and minus 1000 Hz.

I have tried the Data Mode, but usually use the USB position because I like the wide
passband on receive better. I use the widest receive filter settings possible (to
avoid introducing attenuation on the weak signals) and let JT65 do the filtering at
audio levels. I don't use any equalization at all on XMIT, and keep my compression
and mic ALC settings exactly as when I am on SSB. I realize this is different from
PSK31 users, but JT65 is very different from PSK31. Other details on how I set up
the radio and software for JT65 EME are here:

http://www.bigskyspaces.com/w7gj/JT65.pdf

I use my K3 on EME DXpeditions, and am leaving next week for 5W on a 6m EME DXpedition:

http://www.bigskyspaces.com/w7gj/Samoa2011.htm

I hope there will be some new K3 users who will at least listen for me on 6m JT65A
mode at the end of this month during their moonset! GL and VY 73, Lance

On 8/10/2011 10:43 PM, Udo Langenohl - DK5YA wrote:

> Hi,
>
> I was running my good old FT1000MP for 15 years as IF for my
> transverters. Now I've bought a K3 last week with several options. This
> nice little piece is going to be my new rig for VHF/UHF/SHF and the
> FT1000MP will retire (if the K3 will satisfy me needs...I guess it
> will). Of course I will still use my DB6NT TVTR's.
>
> I wonder who's running a K3 with transverters for WSJT/JT65B. Since this
> little box is full of different settings for mic gain, mic EQ's, filters
> and passband etc. I'd like to know your personal adjustments and presets
> for perfect RX/TX in JT65B.
>
> Anyone using Line In/Line Out and the rig in Data Mode A directly to the
> soundcard instead of a seperat interface for FSK441/JT65B? Will it work?
>
> 73 Udo, DK5YA
>
> P.S.: Please accept my apologize, perhaps all these questions poped up
> before. I was trying hard to scan the whole mail reflector but didn't
> find sufficient answers yet.

--
Lance Collister, W7GJ
(ex WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR, 5W0GJ)
P.O. Box 73
Frenchtown, MT 59834-0073
USA
TEL: (406) 626-5728
QTH: DN27ub
URL: http://www.bigskyspaces.com/w7gj
Windows Messenger: [hidden email]
Skype: lanceW7GJ
2m DXCC #11/6m DXCC #815

Interested in 6m EME? Ask me about subscribing to the Magic Band EME
email group, or just fill in the request box at the bottom of my web
page (above)!
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Iain MacDonnell - N6ML-2

Re: [Moon-net] Elecraft K3 Presets/Settings for JT65B / EME

Hi Lance,

Can you explain how the passband is better in USB mode vs "DATA A"?
You can set the bandwidth as you please in either case...

73,

~iain / N6ML

On Thu, Aug 11, 2011 at 2:12 PM, Lance Collister, W7GJ <[hidden email]> wrote:

> Hallo Udo,
>
> The K3 is a GREAT rig for JT65, because it needs no external interface. It is the
> best radio I have ever used for JT65 because of the very flat passband - I can easily
> see callers plus and minus 1000 Hz.
>
> I have tried the Data Mode, but usually use the USB position because I like the wide
> passband on receive better. I use the widest receive filter settings possible (to
> avoid introducing attenuation on the weak signals) and let JT65 do the filtering at
> audio levels. I don't use any equalization at all on XMIT, and keep my compression
> and mic ALC settings exactly as when I am on SSB. I realize this is different from
> PSK31 users, but JT65 is very different from PSK31. Other details on how I set up
> the radio and software for JT65 EME are here:
>
> http://www.bigskyspaces.com/w7gj/JT65.pdf
>
> I use my K3 on EME DXpeditions, and am leaving next week for 5W on a 6m EME DXpedition:
>
> http://www.bigskyspaces.com/w7gj/Samoa2011.htm
>
> I hope there will be some new K3 users who will at least listen for me on 6m JT65A
> mode at the end of this month during their moonset! GL and VY 73, Lance
>
> On 8/10/2011 10:43 PM, Udo Langenohl - DK5YA wrote:
>> Hi,
>>
>> I was running my good old FT1000MP for 15 years as IF for my
>> transverters. Now I've bought a K3 last week with several options. This
>> nice little piece is going to be my new rig for VHF/UHF/SHF and the
>> FT1000MP will retire (if the K3 will satisfy me needs...I guess it
>> will). Of course I will still use my DB6NT TVTR's.
>>
>> I wonder who's running a K3 with transverters for WSJT/JT65B. Since this
>> little box is full of different settings for mic gain, mic EQ's, filters
>> and passband etc. I'd like to know your personal adjustments and presets
>> for perfect RX/TX in JT65B.
>>
>> Anyone using Line In/Line Out and the rig in Data Mode A directly to the
>> soundcard instead of a seperat interface for FSK441/JT65B? Will it work?
>>
>> 73 Udo, DK5YA
>>
>> P.S.: Please accept my apologize, perhaps all these questions poped up
>> before. I was trying hard to scan the whole mail reflector but didn't
>> find sufficient answers yet.
>
>
> --
> Lance Collister, W7GJ
> (ex WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR, 5W0GJ)
> P.O. Box 73
> Frenchtown, MT 59834-0073
> USA
> TEL: (406) 626-5728
> QTH: DN27ub
> URL: http://www.bigskyspaces.com/w7gj
> Windows Messenger: [hidden email]
> Skype: lanceW7GJ
> 2m DXCC #11/6m DXCC #815
>
> Interested in 6m EME? Ask me about subscribing to the Magic Band EME
> email group, or just fill in the request box at the bottom of my web
> page (above)!
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

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W7GJ, Lance

Re: [Moon-net] Elecraft K3 Presets/Settings for JT65B / EME

Hi Iain,

Well, as I recall, the DATA A passband was narrower than the SSB mode - at least in
my K3. I have only 1.8, 6.0 and the standard 2.7 kHz filters installed in mine. When
I am calling CQ on JT65 mode on EME, I like to have the widest possible flat passband
so I can copy callers who spread out to call me without interfering with each other.
I can't confirm the exact details right now though, since my K3 is all packed up
for the 5W 6m EME DXpedition.

VY 73, Lance

On 8/12/2011 8:16 PM, iain macdonnell - N6ML wrote:

> Hi Lance,
>
> Can you explain how the passband is better in USB mode vs "DATA A"?
> You can set the bandwidth as you please in either case...
>
> 73,
>
> ~iain / N6ML
>
>
> On Thu, Aug 11, 2011 at 2:12 PM, Lance Collister, W7GJ<[hidden email]> wrote:
>> Hallo Udo,
>>
>> The K3 is a GREAT rig for JT65, because it needs no external interface. It is the
>> best radio I have ever used for JT65 because of the very flat passband - I can easily
>> see callers plus and minus 1000 Hz.
>>
>> I have tried the Data Mode, but usually use the USB position because I like the wide
>> passband on receive better. I use the widest receive filter settings possible (to
>> avoid introducing attenuation on the weak signals) and let JT65 do the filtering at
>> audio levels. I don't use any equalization at all on XMIT, and keep my compression
>> and mic ALC settings exactly as when I am on SSB. I realize this is different from
>> PSK31 users, but JT65 is very different from PSK31. Other details on how I set up
>> the radio and software for JT65 EME are here:
>>
>> http://www.bigskyspaces.com/w7gj/JT65.pdf
>>
>> I use my K3 on EME DXpeditions, and am leaving next week for 5W on a 6m EME DXpedition:
>>
>> http://www.bigskyspaces.com/w7gj/Samoa2011.htm
>>
>> I hope there will be some new K3 users who will at least listen for me on 6m JT65A
>> mode at the end of this month during their moonset! GL and VY 73, Lance
>>
>> On 8/10/2011 10:43 PM, Udo Langenohl - DK5YA wrote:
>>> Hi,
>>>
>>> I was running my good old FT1000MP for 15 years as IF for my
>>> transverters. Now I've bought a K3 last week with several options. This
>>> nice little piece is going to be my new rig for VHF/UHF/SHF and the
>>> FT1000MP will retire (if the K3 will satisfy me needs...I guess it
>>> will). Of course I will still use my DB6NT TVTR's.
>>>
>>> I wonder who's running a K3 with transverters for WSJT/JT65B. Since this
>>> little box is full of different settings for mic gain, mic EQ's, filters
>>> and passband etc. I'd like to know your personal adjustments and presets
>>> for perfect RX/TX in JT65B.
>>>
>>> Anyone using Line In/Line Out and the rig in Data Mode A directly to the
>>> soundcard instead of a seperat interface for FSK441/JT65B? Will it work?
>>>
>>> 73 Udo, DK5YA
>>>
>>> P.S.: Please accept my apologize, perhaps all these questions poped up
>>> before. I was trying hard to scan the whole mail reflector but didn't
>>> find sufficient answers yet.
>>
>>
>> --
>> Lance Collister, W7GJ
>> (ex WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR, 5W0GJ)
>> P.O. Box 73
>> Frenchtown, MT 59834-0073
>> USA
>> TEL: (406) 626-5728
>> QTH: DN27ub
>> URL: http://www.bigskyspaces.com/w7gj
>> Windows Messenger: [hidden email]
>> Skype: lanceW7GJ
>> 2m DXCC #11/6m DXCC #815
>>
>> Interested in 6m EME? Ask me about subscribing to the Magic Band EME
>> email group, or just fill in the request box at the bottom of my web
>> page (above)!
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>

cqbilld

Re: Elecraft K3 Presets/Settings for JT65B / EME

In reply to this post by Iain MacDonnell - N6ML-2

I continue to be puzzled by this thread. Given that WSJT (all modes) is WRITTEN for use on USB by Joe Taylor, WHY would we be interested in utilizing any K3 mode but USB?

I have operated 441 and JT65 utilizing my K3 off the Moon, tropo and MS with no desire to fuss with any other K3 "mode". The K3 works great on USB ... end of story.

Here, USB, no equalization, 2.7Khz filter (5 pole), no compression. M Audio Delta 44 Soundcard, XP dual core machine and no "audio" interface and a homebrew Opto-isolator for PTT

In the log::

34 - QSOs JT44
702 - QSOs JT65
35 - QSOs JT6M
1057 - QSOs 441

Many hours of HF WSPR as well.

Not all with the K3 ... but many!!

What am I missing???

Respectively, Bill K0AWU EN37ed ....

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Iain MacDonnell - N6ML-2

Re: Elecraft K3 Presets/Settings for JT65B / EME

"DATA A" *is* USB with no equalisation, etc - that's the point. It
allows you to easily switch between SSB and data modes without having
to adjust audio processing for each.

I just looked at my passband, with spectran, in DATA A and USB modes
with the bandwidth cranked up to 4.0kHz (in both cases) with a 2.7kHz
filter. Indeed, the passband seems to be cut off at about 200Hz on the
low end in DATA A mode, but not in SSB mode. What's that about?

http://www.dseven.org/ar/passband.png

~iain / N6ML

On Fri, Aug 12, 2011 at 8:40 PM, <[hidden email]> wrote:

> I continue to be puzzled by this thread. Given that WSJT (all modes) is WRITTEN for use on USB by Joe Taylor, WHY would we be interested in utilizing any K3 mode but USB?
>
> I have operated 441 and JT65 utilizing my K3 off the Moon, tropo and MS with no desire to fuss with any other K3 "mode". The K3 works great on USB ... end of story.
>
> Here, USB, no equalization, 2.7Khz filter (5 pole), no compression. M Audio Delta 44 Soundcard, XP dual core machine and no "audio" interface and a homebrew Opto-isolator for PTT
>
> In the log::
>
> 34 - QSOs JT44
> 702 - QSOs JT65
> 35 - QSOs JT6M
> 1057 - QSOs 441
>
> Many hours of HF WSPR as well.
>
> Not all with the K3 ... but many!!
>
> What am I missing???
>
> Respectively, Bill K0AWU EN37ed ....
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

Don Wilhelm-4

Re: Elecraft K3 Presets/Settings for JT65B / EME

In reply to this post by cqbilld

Bill,

What you are "missing" is that many operators *do* use compression and
TX EQ for SSB work.
DATA A is the same as SSB, but TX EQ is automatically turned off and the
compression setting is set to zero.
Other than those two items, DATA A is just like SSB - Oh, it will also
remember that the audio input is on LINE IN (and remember the level)
while one of the mic jacks is active for SSB mode.

If you never use voice SSB, your setup is just fine, but if you ever
plug in a microphone to use SSB for voice work, you will likely end up
setting up DATA A so you don't have to change menu entries and mess with
the level settings when switching from voice to JT65

73,
Don W3FPR

On 8/12/2011 4:40 PM, [hidden email] wrote:

cqbilld

Re: Elecraft K3 Presets/Settings for JT65B / EME

In reply to this post by Iain MacDonnell - N6ML-2

There we are ... IF we wish to run flat and no compression ... DATA A it seems is a natural. I think Lance 7GJ said he ran WITH equalization yesterday, so he would use SSB. Seems like a users preference.

Here, it is very quick to hit pre-programed PF1 allowing a switch to rear panel audio and IF I have used compression I will roll it back and I'm off and running. (I have been known to keep the compression in on occasion)

I never use any equalization at all here, so that is not an issue in my operation ... The K3 runs CW or digital 95% of the time EXCEPT for 6m Es. IF I had to mess with equalization resets, it would become a bit like a dog chasing it's tail at some point. Then I would be looking at DATA mode I bet.

I sensed a bit of aggravation in the responses in that past, that some of us "insist" on using SSB when the Data "modes" were built into the software to simplify our lives. I know when I wrote software and someone avoided one of my programed features, I was "miffed" too.

After 56yrs of the best hobby in the world, I still like to twist a knob from time to time.

Long live amateur radio and long live the "old school ops" for putting up with us that enjoy playing in "their ball park" using digital modes.

73 Respectively ... Bill K0AWU EN37ed

------------------

----- Original Message -----
From: "iain macdonnell - N6ML" <[hidden email]>
To: [hidden email]
Cc: [hidden email]
Sent: Friday, August 12, 2011 3:52:30 PM
Subject: Re: [Elecraft] Elecraft K3 Presets/Settings for JT65B / EME

"DATA A" *is* USB with no equalisation, etc - that's the point. It
allows you to easily switch between SSB and data modes without having
to adjust audio processing for each.

I just looked at my passband, with spectran, in DATA A and USB modes
with the bandwidth cranked up to 4.0kHz (in both cases) with a 2.7kHz
filter. Indeed, the passband seems to be cut off at about 200Hz on the
low end in DATA A mode, but not in SSB mode. What's that about?

http://www.dseven.org/ar/passband.png

~iain / N6ML

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Joe Subich, W4TV-4

Re: Elecraft K3 Presets/Settings for JT65B / EME

In reply to this post by Iain MacDonnell - N6ML-2

> I just looked at my passband, with spectran, in DATA A and USB modes
> with the bandwidth cranked up to 4.0kHz (in both cases) with a 2.7kHz
> filter. Indeed, the passband seems to be cut off at about 200Hz on the
> low end in DATA A mode, but not in SSB mode. What's that about?

That should not be a problem since applying modulation (audio tones)
that low will result in "tilt" on transmission in any case. In my
experimentation with JT65 on HF working below 300 Hz or so resulted
in power output varying with the specific tone even in DATA A with
no TX EQ presumably due to the skirts of the roofing filter on TX.

73,

... Joe, W4TV

On 8/12/2011 4:52 PM, iain macdonnell - N6ML wrote:

> "DATA A" *is* USB with no equalisation, etc - that's the point. It
> allows you to easily switch between SSB and data modes without having
> to adjust audio processing for each.
>
> I just looked at my passband, with spectran, in DATA A and USB modes
> with the bandwidth cranked up to 4.0kHz (in both cases) with a 2.7kHz
> filter. Indeed, the passband seems to be cut off at about 200Hz on the
> low end in DATA A mode, but not in SSB mode. What's that about?
>
> http://www.dseven.org/ar/passband.png
>
> ~iain / N6ML
>
>
>
>
> On Fri, Aug 12, 2011 at 8:40 PM,<[hidden email]> wrote:
>> I continue to be puzzled by this thread. Given that WSJT (all modes) is WRITTEN for use on USB by Joe Taylor, WHY would we be interested in utilizing any K3 mode but USB?
>>
>> I have operated 441 and JT65 utilizing my K3 off the Moon, tropo and MS with no desire to fuss with any other K3 "mode". The K3 works great on USB ... end of story.
>>
>> Here, USB, no equalization, 2.7Khz filter (5 pole), no compression. M Audio Delta 44 Soundcard, XP dual core machine and no "audio" interface and a homebrew Opto-isolator for PTT
>>
>> In the log::
>>
>> 34 - QSOs JT44
>> 702 - QSOs JT65
>> 35 - QSOs JT6M
>> 1057 - QSOs 441
>>
>> Many hours of HF WSPR as well.
>>
>> Not all with the K3 ... but many!!
>>
>> What am I missing???
>>
>> Respectively, Bill K0AWU EN37ed ....
>>
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
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> Please help support this email list: http://www.qsl.net/donate.html
>

Iain MacDonnell - N6ML-2

Re: Elecraft K3 Presets/Settings for JT65B / EME

On Fri, Aug 12, 2011 at 10:12 PM, Joe Subich, W4TV <[hidden email]> wrote:

>
> > I just looked at my passband, with spectran, in DATA A and USB modes
> > with the bandwidth cranked up to 4.0kHz (in both cases) with a 2.7kHz
> > filter. Indeed, the passband seems to be cut off at about 200Hz on the
> > low end in DATA A mode, but not in SSB mode. What's that about?
>
> That should not be a problem since applying modulation (audio tones)
> that low will result in "tilt" on transmission in any case. In my
> experimentation with JT65 on HF working below 300 Hz or so resulted
> in power output varying with the specific tone even in DATA A with
> no TX EQ presumably due to the skirts of the roofing filter on TX.

Yeah, I wouldn't suggest transmitting that low in the AF range, but
one might be able to decode a received signal down there (then perhaps
QSY down 1kHz and call him, if interested).

In any case, I find the discrepancy between the passbands of DATA A vs
USB modes curious - can anyone (Lyle?) explain it?

~iain / N6ML

> On 8/12/2011 4:52 PM, iain macdonnell - N6ML wrote:
>> "DATA A" *is* USB with no equalisation, etc - that's the point. It
>> allows you to easily switch between SSB and data modes without having
>> to adjust audio processing for each.
>>
>> I just looked at my passband, with spectran, in DATA A and USB modes
>> with the bandwidth cranked up to 4.0kHz (in both cases) with a 2.7kHz
>> filter. Indeed, the passband seems to be cut off at about 200Hz on the
>> low end in DATA A mode, but not in SSB mode. What's that about?
>>
>> http://www.dseven.org/ar/passband.png
>>
>> ~iain / N6ML
>>
>>
>>
>>
>> On Fri, Aug 12, 2011 at 8:40 PM,<[hidden email]> wrote:
>>> I continue to be puzzled by this thread. Given that WSJT (all modes) is WRITTEN for use on USB by Joe Taylor, WHY would we be interested in utilizing any K3 mode but USB?
>>>
>>> I have operated 441 and JT65 utilizing my K3 off the Moon, tropo and MS with no desire to fuss with any other K3 "mode". The K3 works great on USB ... end of story.
>>>
>>> Here, USB, no equalization, 2.7Khz filter (5 pole), no compression. M Audio Delta 44 Soundcard, XP dual core machine and no "audio" interface and a homebrew Opto-isolator for PTT
>>>
>>> In the log::
>>>
>>> 34 - QSOs JT44
>>> 702 - QSOs JT65
>>> 35 - QSOs JT6M
>>> 1057 - QSOs 441
>>>
>>> Many hours of HF WSPR as well.
>>>
>>> Not all with the K3 ... but many!!
>>>
>>> What am I missing???
>>>
>>> Respectively, Bill K0AWU EN37ed ....
>>>
>>>
>>> ______________________________________________________________
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:[hidden email]
>>>
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

Guy, K2AV

Re: Elecraft K3 Presets/Settings for JT65B / EME

Isn't SHIFT remembered separately? 73, Guy.

On Fri, Aug 12, 2011 at 6:28 PM, iain macdonnell - N6ML <[hidden email]> wrote:

> On Fri, Aug 12, 2011 at 10:12 PM, Joe Subich, W4TV <[hidden email]> wrote:
>>
>> > I just looked at my passband, with spectran, in DATA A and USB modes
>> > with the bandwidth cranked up to 4.0kHz (in both cases) with a 2.7kHz
>> > filter. Indeed, the passband seems to be cut off at about 200Hz on the
>> > low end in DATA A mode, but not in SSB mode. What's that about?
>>
>> That should not be a problem since applying modulation (audio tones)
>> that low will result in "tilt" on transmission in any case. In my
>> experimentation with JT65 on HF working below 300 Hz or so resulted
>> in power output varying with the specific tone even in DATA A with
>> no TX EQ presumably due to the skirts of the roofing filter on TX.
>
> Yeah, I wouldn't suggest transmitting that low in the AF range, but
> one might be able to decode a received signal down there (then perhaps
> QSY down 1kHz and call him, if interested).
>
> In any case, I find the discrepancy between the passbands of DATA A vs
> USB modes curious - can anyone (Lyle?) explain it?
>
> ~iain / N6ML
>
>
>
>
>> On 8/12/2011 4:52 PM, iain macdonnell - N6ML wrote:
>>> "DATA A" *is* USB with no equalisation, etc - that's the point. It
>>> allows you to easily switch between SSB and data modes without having
>>> to adjust audio processing for each.
>>>
>>> I just looked at my passband, with spectran, in DATA A and USB modes
>>> with the bandwidth cranked up to 4.0kHz (in both cases) with a 2.7kHz
>>> filter. Indeed, the passband seems to be cut off at about 200Hz on the
>>> low end in DATA A mode, but not in SSB mode. What's that about?
>>>
>>> http://www.dseven.org/ar/passband.png
>>>
>>> ~iain / N6ML
>>>
>>>
>>>
>>>
>>> On Fri, Aug 12, 2011 at 8:40 PM,<[hidden email]> wrote:
>>>> I continue to be puzzled by this thread. Given that WSJT (all modes) is WRITTEN for use on USB by Joe Taylor, WHY would we be interested in utilizing any K3 mode but USB?
>>>>
>>>> I have operated 441 and JT65 utilizing my K3 off the Moon, tropo and MS with no desire to fuss with any other K3 "mode". The K3 works great on USB ... end of story.
>>>>
>>>> Here, USB, no equalization, 2.7Khz filter (5 pole), no compression. M Audio Delta 44 Soundcard, XP dual core machine and no "audio" interface and a homebrew Opto-isolator for PTT
>>>>
>>>> In the log::
>>>>
>>>> 34 - QSOs JT44
>>>> 702 - QSOs JT65
>>>> 35 - QSOs JT6M
>>>> 1057 - QSOs 441
>>>>
>>>> Many hours of HF WSPR as well.
>>>>
>>>> Not all with the K3 ... but many!!
>>>>
>>>> What am I missing???
>>>>
>>>> Respectively, Bill K0AWU EN37ed ....
>>>>
>>>>
>>>> ______________________________________________________________
>>>> Elecraft mailing list
>>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>> Post: mailto:[hidden email]
>>>>
>>>> This list hosted by: http://www.qsl.net
>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>
>>> ______________________________________________________________
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:[hidden email]
>>>
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>>> Please help support this email list: http://www.qsl.net/donate.html
>>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
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>> Please help support this email list: http://www.qsl.net/donate.html
>>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
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> Please help support this email list: http://www.qsl.net/donate.html
>

Iain MacDonnell - N6ML-2

Re: Elecraft K3 Presets/Settings for JT65B / EME

Probably, but even if I shift downwards in DATA A mode, there's still
a cut-off at 200Hz.

~iain / N6ML

On Fri, Aug 12, 2011 at 11:47 PM, Guy Olinger K2AV
<[hidden email]> wrote:

> Isn't SHIFT remembered separately? 73, Guy.
>
> On Fri, Aug 12, 2011 at 6:28 PM, iain macdonnell - N6ML <[hidden email]> wrote:
>> On Fri, Aug 12, 2011 at 10:12 PM, Joe Subich, W4TV <[hidden email]> wrote:
>>>
>>> > I just looked at my passband, with spectran, in DATA A and USB modes
>>> > with the bandwidth cranked up to 4.0kHz (in both cases) with a 2.7kHz
>>> > filter. Indeed, the passband seems to be cut off at about 200Hz on the
>>> > low end in DATA A mode, but not in SSB mode. What's that about?
>>>
>>> That should not be a problem since applying modulation (audio tones)
>>> that low will result in "tilt" on transmission in any case. In my
>>> experimentation with JT65 on HF working below 300 Hz or so resulted
>>> in power output varying with the specific tone even in DATA A with
>>> no TX EQ presumably due to the skirts of the roofing filter on TX.
>>
>> Yeah, I wouldn't suggest transmitting that low in the AF range, but
>> one might be able to decode a received signal down there (then perhaps
>> QSY down 1kHz and call him, if interested).
>>
>> In any case, I find the discrepancy between the passbands of DATA A vs
>> USB modes curious - can anyone (Lyle?) explain it?
>>
>> ~iain / N6ML
>>
>>
>>
>>
>>> On 8/12/2011 4:52 PM, iain macdonnell - N6ML wrote:
>>>> "DATA A" *is* USB with no equalisation, etc - that's the point. It
>>>> allows you to easily switch between SSB and data modes without having
>>>> to adjust audio processing for each.
>>>>
>>>> I just looked at my passband, with spectran, in DATA A and USB modes
>>>> with the bandwidth cranked up to 4.0kHz (in both cases) with a 2.7kHz
>>>> filter. Indeed, the passband seems to be cut off at about 200Hz on the
>>>> low end in DATA A mode, but not in SSB mode. What's that about?
>>>>
>>>> http://www.dseven.org/ar/passband.png
>>>>
>>>> ~iain / N6ML
>>>>
>>>>
>>>>
>>>>
>>>> On Fri, Aug 12, 2011 at 8:40 PM,<[hidden email]> wrote:
>>>>> I continue to be puzzled by this thread. Given that WSJT (all modes) is WRITTEN for use on USB by Joe Taylor, WHY would we be interested in utilizing any K3 mode but USB?
>>>>>
>>>>> I have operated 441 and JT65 utilizing my K3 off the Moon, tropo and MS with no desire to fuss with any other K3 "mode". The K3 works great on USB ... end of story.
>>>>>
>>>>> Here, USB, no equalization, 2.7Khz filter (5 pole), no compression. M Audio Delta 44 Soundcard, XP dual core machine and no "audio" interface and a homebrew Opto-isolator for PTT
>>>>>
>>>>> In the log::
>>>>>
>>>>> 34 - QSOs JT44
>>>>> 702 - QSOs JT65
>>>>> 35 - QSOs JT6M
>>>>> 1057 - QSOs 441
>>>>>
>>>>> Many hours of HF WSPR as well.
>>>>>
>>>>> Not all with the K3 ... but many!!
>>>>>
>>>>> What am I missing???
>>>>>
>>>>> Respectively, Bill K0AWU EN37ed ....
>>>>>
>>>>>
>>>>> ______________________________________________________________
>>>>> Elecraft mailing list
>>>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>>> Post: mailto:[hidden email]
>>>>>
>>>>> This list hosted by: http://www.qsl.net
>>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>>
>>>> ______________________________________________________________
>>>> Elecraft mailing list
>>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>> Post: mailto:[hidden email]
>>>>
>>>> This list hosted by: http://www.qsl.net
>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>
>>> ______________________________________________________________
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:[hidden email]
>>>
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>