Re: [Elecraft] K4 Questions

[Barry LaZar]

Grant,
 I know how you feel. It seems I'm missing a bunch of information. I
guess it must be my advancing age.

73,
Barry
K3NDM

On Sat, Aug 15, 2020, 11:53 AM Grant Youngman  wrote:

> I recall that Eric answered a question about that during one of the two 90
> minute Q at the Expo.
>
> I think he said it may be available at some point, but indicated it was
> possibly over ethernet (?) rather than USB.  But I could be mistaken, since
> I’m lucky to remember my name unless I look at my driver’s license … if I
> can remember where that is :-)
>
> Whichever it is, it didn’t sound like it was going to be a first release
> feature.
>
> Grant NQ5T
>
> > On Aug 15, 2020, at 11:42 AM, Barry LaZar  wrote:
> >
> > Bill,
> > I really don't know. If it was posted, I missed it.
> >
> > 73,
> > Barry
> > K3NDM
> >
> > On Sat, Aug 15, 2020, 2:27 AM Nr4c  wrote:
> >
> >> Barry
> >>
> >> Did I read months ago that I/Q might be available on USB?  Or was it
> posed
> >> as a question or suggestion?
> >>
> >> Sent from my iPhone
> >> ...nr4c. bill
> >>
> >>
> >>> On Aug 15, 2020, at 12:03 AM, Bob Wilson, N6TV  wrote:
> >>>
> >>> On Tue, Aug 11, 2020 at 5:51 PM Barry LaZar 
> >> wrote:
> >>>
>  is the pan presentation fixed as to frequency span or can the
> frequency
>  span be adjusted; I typically use 25-50 KHz on CW or
>  less on data modes.
> >>>
> >>>
> >>> Span and center frequency are adjustable.  Fixed or tracking mode is
> >>> available.  Scrolling mode (to prevent VFO cursor from going off
> screen)
> >>> has different options, similar to P3:  full page, half page, slide,
> etc.
> >>>
> >>>
>  Next can the xvter IF out be used as the IF out on the K4D?
> >>>
> >>>
> >>> Probably it will work the same as a K3.
> >>>
> >>>
>  Or, is the I available for use o0n applications like CW Skimmer;
> This
>  requires a MME format.
> 
> >>>
> >>> I don't think that will work.  Connecting a separate SDR to RX ANT OUT
> >>> would be a simpler way to do it.  A program like HDSDR can keep the SDR
> >>> frequency in sync with the K4 frequency.
> >>>
> >>> 73,
> >>> Bob, N6TV
> >>> __
> >>> Elecraft mailing list
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> >>>
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> >>
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>
>
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Re: [Elecraft] K4 Questions

[Grant Youngman]

I recall that Eric answered a question about that during one of the two 90 
minute Q at the Expo.

I think he said it may be available at some point, but indicated it was 
possibly over ethernet (?) rather than USB.  But I could be mistaken, since I’m 
lucky to remember my name unless I look at my driver’s license … if I can 
remember where that is :-)

Whichever it is, it didn’t sound like it was going to be a first release 
feature.

Grant NQ5T

> On Aug 15, 2020, at 11:42 AM, Barry LaZar  wrote:
> 
> Bill,
> I really don't know. If it was posted, I missed it.
> 
> 73,
> Barry
> K3NDM
> 
> On Sat, Aug 15, 2020, 2:27 AM Nr4c  wrote:
> 
>> Barry
>> 
>> Did I read months ago that I/Q might be available on USB?  Or was it posed
>> as a question or suggestion?
>> 
>> Sent from my iPhone
>> ...nr4c. bill
>> 
>> 
>>> On Aug 15, 2020, at 12:03 AM, Bob Wilson, N6TV  wrote:
>>> 
>>> On Tue, Aug 11, 2020 at 5:51 PM Barry LaZar 
>> wrote:
>>> 
 is the pan presentation fixed as to frequency span or can the frequency
 span be adjusted; I typically use 25-50 KHz on CW or
 less on data modes.
>>> 
>>> 
>>> Span and center frequency are adjustable.  Fixed or tracking mode is
>>> available.  Scrolling mode (to prevent VFO cursor from going off screen)
>>> has different options, similar to P3:  full page, half page, slide, etc.
>>> 
>>> 
 Next can the xvter IF out be used as the IF out on the K4D?
>>> 
>>> 
>>> Probably it will work the same as a K3.
>>> 
>>> 
 Or, is the I available for use o0n applications like CW Skimmer; This
 requires a MME format.
 
>>> 
>>> I don't think that will work.  Connecting a separate SDR to RX ANT OUT
>>> would be a simpler way to do it.  A program like HDSDR can keep the SDR
>>> frequency in sync with the K4 frequency.
>>> 
>>> 73,
>>> Bob, N6TV
>>> __
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:Elecraft@mailman.qth.net
>>> 
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>> Message delivered to n...@widomaker.com
>> 
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Re: [Elecraft] K4 Questions

[Barry LaZar]

Bill,
 I really don't know. If it was posted, I missed it.

73,
Barry
K3NDM

On Sat, Aug 15, 2020, 2:27 AM Nr4c  wrote:

> Barry
>
> Did I read months ago that I/Q might be available on USB?  Or was it posed
> as a question or suggestion?
>
> Sent from my iPhone
> ...nr4c. bill
>
>
> > On Aug 15, 2020, at 12:03 AM, Bob Wilson, N6TV  wrote:
> >
> > On Tue, Aug 11, 2020 at 5:51 PM Barry LaZar 
> wrote:
> >
> >> is the pan presentation fixed as to frequency span or can the frequency
> >> span be adjusted; I typically use 25-50 KHz on CW or
> >> less on data modes.
> >
> >
> > Span and center frequency are adjustable.  Fixed or tracking mode is
> > available.  Scrolling mode (to prevent VFO cursor from going off screen)
> > has different options, similar to P3:  full page, half page, slide, etc.
> >
> >
> >> Next can the xvter IF out be used as the IF out on the K4D?
> >
> >
> > Probably it will work the same as a K3.
> >
> >
> >> Or, is the I available for use o0n applications like CW Skimmer; This
> >> requires a MME format.
> >>
> >
> > I don't think that will work.  Connecting a separate SDR to RX ANT OUT
> > would be a simpler way to do it.  A program like HDSDR can keep the SDR
> > frequency in sync with the K4 frequency.
> >
> > 73,
> > Bob, N6TV
> > __
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:Elecraft@mailman.qth.net
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> > Message delivered to n...@widomaker.com
>
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Re: [Elecraft] K4 Questions

[Wayne Burdick]

Yes, IQ data will be available. 

Wayne 
N6KR


elecraft.com

> On Aug 11, 2020, at 5:52 PM, Barry LaZar  wrote:
> 
> I just saw the presentation Eric gave on the K4. It is really impressive. 
> However, I've never been able to get the answer to a few questions. First, is 
> the pan presentation fixed as to frequency span or can the frequency span be 
> adjusted; I typically use 25-50 KHz on CW or less on data modes. Next can the 
> xvter IF out be used as the IF out on the K4D? Or, is the I available for 
> use o0n applications like CW Skimmer; This requires a MME format.
> 
> 
> I'm sure I will have additional questions over time. But, these are my 
> present burning questions. I now have a K3s and think it's a fantastic radio.
> 
> 
> 73,
> 
> Barry
> 
> K3NDM
> 
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Re: [Elecraft] K4 Questions

[Nr4c]

Barry

Did I read months ago that I/Q might be available on USB?  Or was it posed as a 
question or suggestion?

Sent from my iPhone
...nr4c. bill


> On Aug 15, 2020, at 12:03 AM, Bob Wilson, N6TV  wrote:
> 
> On Tue, Aug 11, 2020 at 5:51 PM Barry LaZar  wrote:
> 
>> is the pan presentation fixed as to frequency span or can the frequency
>> span be adjusted; I typically use 25-50 KHz on CW or
>> less on data modes.
> 
> 
> Span and center frequency are adjustable.  Fixed or tracking mode is
> available.  Scrolling mode (to prevent VFO cursor from going off screen)
> has different options, similar to P3:  full page, half page, slide, etc.
> 
> 
>> Next can the xvter IF out be used as the IF out on the K4D?
> 
> 
> Probably it will work the same as a K3.
> 
> 
>> Or, is the I available for use o0n applications like CW Skimmer; This
>> requires a MME format.
>> 
> 
> I don't think that will work.  Connecting a separate SDR to RX ANT OUT
> would be a simpler way to do it.  A program like HDSDR can keep the SDR
> frequency in sync with the K4 frequency.
> 
> 73,
> Bob, N6TV
> __
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Re: [Elecraft] K4 Questions

[Barry LaZar]

Bob,

    Thanks much for the response.

73,

Barry

K3NDM

On 8/15/2020 12:01 AM, Bob Wilson, N6TV wrote:
On Tue, Aug 11, 2020 at 5:51 PM Barry LaZar > wrote:


 is the pan presentation fixed as to frequency span or can the
frequency span be adjusted; I typically use 25-50 KHz on CW or
less on data modes.


Span and center frequency are adjustable.  Fixed or tracking mode is 
available.  Scrolling mode (to prevent VFO cursor from going off 
screen) has different options, similar to P3:  full page, half page, 
slide, etc.


Next can the xvter IF out be used as the IF out on the K4D? 



Probably it will work the same as a K3.

Or, is the I available for use o0n applications like CW Skimmer;
This requires a MME format.


I don't think that will work.  Connecting a separate SDR to RX ANT OUT 
would be a simpler way to do it.  A program like HDSDR can keep the 
SDR frequency in sync with the K4 frequency.


73,
Bob, N6TV


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Re: [Elecraft] K4 Questions

[Steve Dyer via Elecraft]

I hope they follow Flex Radio's lead and have something similar to DAX 
to share out the audio. Really makes it clean and easy. The idea of 
having to connect another SDR is so 2000.

73,
Steve
W1SRD
(In the dark in ELDO county waiting for PG)

On 8/14/2020 21:01, Bob Wilson, N6TV wrote:

On Tue, Aug 11, 2020 at 5:51 PM Barry LaZar  wrote:


  is the pan presentation fixed as to frequency span or can the frequency
span be adjusted; I typically use 25-50 KHz on CW or
less on data modes.


Span and center frequency are adjustable.  Fixed or tracking mode is
available.  Scrolling mode (to prevent VFO cursor from going off screen)
has different options, similar to P3:  full page, half page, slide, etc.



Next can the xvter IF out be used as the IF out on the K4D?


Probably it will work the same as a K3.



Or, is the I available for use o0n applications like CW Skimmer; This
requires a MME format.


I don't think that will work.  Connecting a separate SDR to RX ANT OUT
would be a simpler way to do it.  A program like HDSDR can keep the SDR
frequency in sync with the K4 frequency.

73,
Bob, N6TV
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Re: [Elecraft] K4 Questions

[Bob Wilson, N6TV]

On Tue, Aug 11, 2020 at 5:51 PM Barry LaZar  wrote:

>  is the pan presentation fixed as to frequency span or can the frequency
> span be adjusted; I typically use 25-50 KHz on CW or
> less on data modes.


Span and center frequency are adjustable.  Fixed or tracking mode is
available.  Scrolling mode (to prevent VFO cursor from going off screen)
has different options, similar to P3:  full page, half page, slide, etc.


> Next can the xvter IF out be used as the IF out on the K4D?


Probably it will work the same as a K3.


> Or, is the I available for use o0n applications like CW Skimmer; This
> requires a MME format.
>

I don't think that will work.  Connecting a separate SDR to RX ANT OUT
would be a simpler way to do it.  A program like HDSDR can keep the SDR
frequency in sync with the K4 frequency.

73,
Bob, N6TV
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[Elecraft] K4 Questions

[Barry LaZar]

I just saw the presentation Eric gave on the K4. It is really 
impressive. However, I've never been able to get the answer to a few 
questions. First, is the pan presentation fixed as to frequency span or 
can the frequency span be adjusted; I typically use 25-50 KHz on CW or 
less on data modes. Next can the xvter IF out be used as the IF out on 
the K4D? Or, is the I available for use o0n applications like CW 
Skimmer; This requires a MME format.



I'm sure I will have additional questions over time. But, these are my 
present burning questions. I now have a K3s and think it's a fantastic 
radio.



73,

Barry

K3NDM

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Re: [Elecraft] K4 questions!

[Wayne Burdick]

Hi Eric,


> eric norris wrote:
> 
> Within shipping groups, will the K4D be available as soon as the K4, or later?

Same time.


> To use diversity rx with the K4D, does the second antenna have to be 
> connected to the RX ANT port, or a second ANT port, and do you need the 
> internal ATU to get multiple ANT ports?  

First, just to clarify for those not familiar with diversity: this requires 
different antennas for the two receivers, which implies a K4D. (A basic K4 can 
still receive on any two bands simultaneously, but only with a shared antenna.)

With no ATU installed, your choices for the second receiver's antenna would 
include RX ANT IN 1 and RX ANT IN 2. You could even use these two RX antenna 
jacks for the main and sub receivers, independent of the main antenna jack, 
which would still be used for transmit.

With an ATU installed, you'd be able to specify any one of its three antennas 
as an RX antenna. This can then be assigned to either or both receivers. So 
this, too, is a diversity antenna option.


> Can the internal ATU be assigned to an ANT port, or is it always assigned to 
> ANT 1? 

The ATU has three antenna jacks (ANT 1/2/3). At a given time, one of these can 
be assigned to the LC network and thus be available for transmit (and 
optionally for either or both receivers). The two jacks not assigned to 
transmit are then available for possible use as receive antennas (see above).

As an example, here's the control sequence you'd use to select ANT 1 for 
transmit, RX ANT 2 for the main receiver, and RX ANT 2 for the sub receiver.

ANT (selects transmit antenna; tap once or twice to get to ANT1 icon)

RX ANT > RX1   (main receiver)

SUB ANT > RX2  (sub receiver)

The default for both receivers is to use the same antenna as the transmitter. 
This is selected by:

RX ANT > =TX

SUB ANT > =TX

Antenna configurations are stored per-band. You can optionally assign names 
(like "YAGI3", "LOOP", etc.) to antennas using an on-screen QWERTY keyboard. 
These names will then show up in place of the main RX/sub RX/TX antenna icons.

73,
Wayne
N6KR

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[Elecraft] K4 questions!

[eric norris via Elecraft]

Within shipping groups, will the K4D be available as soon as the K4, or later?
To use diversity rx with the K4D, does the second antenna have to be connected 
to the RX ANT port, or a second ANT port, and do you need the internal ATU to 
get multiple ANT ports?  Can the internal ATU be assigned to an ANT port, or is 
it always assigned to ANT 1?  

73, Eric WD6DBM
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Re: [Elecraft] K4 Questions

[Wayne Burdick]

Definitely.

Wayne


> On Jun 6, 2019, at 2:59 PM, Doug Turnbull  wrote:
> 
> Would switching out the superhet front end allow a wider bandwidth for FT8
> in the event that narrower filters are used in the front end.
> 73 Doug EI2CN
> 
> -Original Message-
> From: elecraft-boun...@mailman.qth.net
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wayne Burdick
> Sent: 06 June 2019 21:54
> To: n...@windstream.net
> Cc: Elecraft Reflector
> Subject: Re: [Elecraft] K4 Questions
> 
> 
>> On Jun 6, 2019, at 2:28 PM,  
> wrote:
>> 
>> 1.   I understand that the K4HD will have a selectable feature that would
>> allow it to use either the direct sampling or the superhet front end.   If
> I
>> had a K4HD, why would I ever want to switch from the better superhet front
>> end to SDR - assuming I already own all the filters?
> 
> a)  Direct-sampling passband is flatter than the flattest crystal filter,
> with no ripple or group delay issues. Better sound on SSB, ESSB, AM, and FM,
> and possibly lower error rate in some digital modes, DV, etc.
> 
> b)  Direct sampling provides a wider bandwidth looking into the DSP,
> allowing for some advanced noise reduction capabilities including new NR,
> frequency-offset noise cancellation, etc. These features will be evolving
> over time.
> 
> c)  Turning off the superhet module will allow RX/TX operation near and at
> the IF (8.215 MHz). 
> 
> d)  Current drain will be lower with the HDR module turned off.
> 
> 
> 
>> 2.   Will there be a "K4 mini"?  I know I could operate remotely from a
>> PC, etc. but would prefer the "real radio" feel with knobs, a plug in
>> paddle, etc. and having the panadapter screen in the mini would be a plus?
>> I use a K3 mini now but not with a P3.
> 
> Maybe. Someday. But I can't say for certain. Another possibility is a
> "K4/0", i.e. a K4 with only a front panel and host interface module, but in
> the same size chassis as a K4. Any K4, including a K4/0 or -mini, will be
> able to control another one.
> 
> 
> 
>> 3.   My primary station is built as a remote station in FL in partnership
>> with Paul-W9AC.  We use Verizon 4G LTE for internet and are limited to 30
> GB
>> of data per month (without upcharge).  How data intensive is the K4 with
> the
>> panadapter in remote operation versus the K3S -- assuming it would be
>> controlled with a K4 mini or another K4 to get the panadapter feature??
> 
> No data on this yet. But you should be able to turn off the panadapter
> stream if/when you don't need it. Good idea.
> 
> 73,
> Wayne
> N6KR
> 
> 
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> 

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Re: [Elecraft] K4 Questions

[Doug Turnbull]

Would switching out the superhet front end allow a wider bandwidth for FT8
in the event that narrower filters are used in the front end.
 73 Doug EI2CN

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wayne Burdick
Sent: 06 June 2019 21:54
To: n...@windstream.net
Cc: Elecraft Reflector
Subject: Re: [Elecraft] K4 Questions


> On Jun 6, 2019, at 2:28 PM,  
wrote:
> 
> 1.I understand that the K4HD will have a selectable feature that would
> allow it to use either the direct sampling or the superhet front end.   If
I
> had a K4HD, why would I ever want to switch from the better superhet front
> end to SDR - assuming I already own all the filters?

a)  Direct-sampling passband is flatter than the flattest crystal filter,
with no ripple or group delay issues. Better sound on SSB, ESSB, AM, and FM,
and possibly lower error rate in some digital modes, DV, etc.

b)  Direct sampling provides a wider bandwidth looking into the DSP,
allowing for some advanced noise reduction capabilities including new NR,
frequency-offset noise cancellation, etc. These features will be evolving
over time.

c)  Turning off the superhet module will allow RX/TX operation near and at
the IF (8.215 MHz). 

d)  Current drain will be lower with the HDR module turned off.



> 2.Will there be a "K4 mini"?  I know I could operate remotely from a
> PC, etc. but would prefer the "real radio" feel with knobs, a plug in
> paddle, etc. and having the panadapter screen in the mini would be a plus?
> I use a K3 mini now but not with a P3.

Maybe. Someday. But I can't say for certain. Another possibility is a
"K4/0", i.e. a K4 with only a front panel and host interface module, but in
the same size chassis as a K4. Any K4, including a K4/0 or -mini, will be
able to control another one.



> 3.My primary station is built as a remote station in FL in partnership
> with Paul-W9AC.  We use Verizon 4G LTE for internet and are limited to 30
GB
> of data per month (without upcharge).  How data intensive is the K4 with
the
> panadapter in remote operation versus the K3S -- assuming it would be
> controlled with a K4 mini or another K4 to get the panadapter feature??

No data on this yet. But you should be able to turn off the panadapter
stream if/when you don't need it. Good idea.

73,
Wayne
N6KR


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Re: [Elecraft] K4 Questions

[Wayne Burdick]

> On Jun 6, 2019, at 2:28 PM,   wrote:
> 
> 1.I understand that the K4HD will have a selectable feature that would
> allow it to use either the direct sampling or the superhet front end.   If I
> had a K4HD, why would I ever want to switch from the better superhet front
> end to SDR - assuming I already own all the filters?

a)  Direct-sampling passband is flatter than the flattest crystal filter, with 
no ripple or group delay issues. Better sound on SSB, ESSB, AM, and FM, and 
possibly lower error rate in some digital modes, DV, etc.

b)  Direct sampling provides a wider bandwidth looking into the DSP, allowing 
for some advanced noise reduction capabilities including new NR, 
frequency-offset noise cancellation, etc. These features will be evolving over 
time.

c)  Turning off the superhet module will allow RX/TX operation near and at the 
IF (8.215 MHz). 

d)  Current drain will be lower with the HDR module turned off.



> 2.Will there be a "K4 mini"?  I know I could operate remotely from a
> PC, etc. but would prefer the "real radio" feel with knobs, a plug in
> paddle, etc. and having the panadapter screen in the mini would be a plus?
> I use a K3 mini now but not with a P3.

Maybe. Someday. But I can't say for certain. Another possibility is a "K4/0", 
i.e. a K4 with only a front panel and host interface module, but in the same 
size chassis as a K4. Any K4, including a K4/0 or -mini, will be able to 
control another one.



> 3.My primary station is built as a remote station in FL in partnership
> with Paul-W9AC.  We use Verizon 4G LTE for internet and are limited to 30 GB
> of data per month (without upcharge).  How data intensive is the K4 with the
> panadapter in remote operation versus the K3S -- assuming it would be
> controlled with a K4 mini or another K4 to get the panadapter feature??

No data on this yet. But you should be able to turn off the panadapter stream 
if/when you don't need it. Good idea.

73,
Wayne
N6KR


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[Elecraft] K4 Questions

[n4cc]

I have a couple questions regarding the K4 and K4HD - perhaps for
Wayne/Eric.

1.  I understand that the K4HD will have a selectable feature that would
allow it to use either the direct sampling or the superhet front end.   If I
had a K4HD, why would I ever want to switch from the better superhet front
end to SDR - assuming I already own all the filters?
2.  Will there be a "K4 mini"?  I know I could operate remotely from a
PC, etc. but would prefer the "real radio" feel with knobs, a plug in
paddle, etc. and having the panadapter screen in the mini would be a plus?
I use a K3 mini now but not with a P3.
3.  My primary station is built as a remote station in FL in partnership
with Paul-W9AC.  We use Verizon 4G LTE for internet and are limited to 30 GB
of data per month (without upcharge).  How data intensive is the K4 with the
panadapter in remote operation versus the K3S -- assuming it would be
controlled with a K4 mini or another K4 to get the panadapter feature??
(Forgive me if I'm not asking the question correctly, but I think you'll
understand my intent.)

Thanks.  73, Greg-N4CC

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[Elecraft] K4 Questions

[Rick WA6NHC]

Wayne,

What is the ultimate resolution available from the HDMI output?

I'm hoping for UHD (4K), that display would be beyond spectacular (and 
I'd presume that the linux machine would manage that to take the load 
off the K4 RF portion).


Well done for moving to HDMI, as monitors are sharper AND cheaper than 
SVGA these days.  It could also allow a split screen (picture in 
picture) on a capable TV or monitor for other things to be displayed at 
the same time.


Is it a safe presumption that audio is routed through the RJ45 as well 
so that no other wiring is required for remote?


Thank you, it all looks so promising while we wait for specifics.

73,

Rick WA6NHC
North Idaho

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[Elecraft] K4 questions

[Dauer, Edward]

Is it "modularized" as the K3 is, with dual receivers as an option?  Filter 
choices, or is all of that built in?  General coverage option?  Transverters?  
100 or 10 watt amp?

I am assuming it's fully integrated with the KP1500, right?  How about 
compatible with the P3, in case someone wants to watch simultaneously the band 
on one screen and whatever the K4 is doing on the other?

Is the iPad in Eric's hand a way to operate remote -- like, from far away?

What's the likely delivery time for current orders?

Yeah, I know it'll be on the Elecraft site tomorrow.  I wanna know tonight!!

Ted, KN1CBR

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