K3: pseudo KRX3 "free" via LP-Pan+Power SDR

[DOUGLAS ZWIEBEL]

RE:  http://www.youtube.com/watch?v=4tjKQ1g4X0I

Great video and demo.

I have not ordered the KRX3 for either of my k3 radios.  I do
contesting as 99% of my ham activity (not counting posting on the
Elecraft reflector), so I saw little need.  However, the LP-Pan is on
my list.

After viewing the video, I am happier than ever that I didn't get the
KRX3, so this alternative will be more than "good enough" for the
extremely rare occasion (for me) when I'd like to use a sub-receiver.

Of course, I can always use the 2nd K3.  ;-)

Great stuff guys!

de Doug KR2Q
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[Ed Muns, W0YK]

> the Elecraft reflector), so I saw little need.  However, the
> LP-Pan is on my list.

Apparently, the LP-Pan is popular.  I just received LP-Pan numbers 173 & 174
which is about 15% of K3 shipments at the time I ordered it.

73,
Ed - W0YK

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[Doug Faunt N6TQS [phone]]

I got K3 #22, and LP-Pan #23- now to find the time to do something
with them.  

73, doug

   From: "Ed Muns" <[hidden email]>
   Date: Wed, 30 Jul 2008 10:34:20 -0700

   > the Elecraft reflector), so I saw little need.  However, the
   > LP-Pan is on my list.

   Apparently, the LP-Pan is popular.  I just received LP-Pan numbers 173 & 174
   which is about 15% of K3 shipments at the time I ordered it.

   73,
   Ed - W0YK
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[GW0ETF]

DOUGLAS ZWIEBEL wrote

RE:  http://www.youtube.com/watch?v=4tjKQ1g4X0I

Great video and demo.
.........
After viewing the video, I am happier than ever that I didn't get the
KRX3, so this alternative will be more than "good enough" for the
extremely rare occasion (for me) when I'd like to use a sub-receiver.
............
de Doug KR2Q

Am I correct in assuming that the LP-Pan/PowerSDR combo will give you second receive but *only* within the IF passband of the K3, whatever that may be.

The hardware KRX3 will have no restrictions like that and eventually allow cross band dual rx too. Can't wait!

73,

Stewart Rolfe, GW0ETF (K3 145)

[Eric Swartz - WA6HHQ]

Yes. Actually only withing the bandwidth of the sound card, which is
much less than the K3's IF bandwidth pre-crystal filter.

Also, the hardware KRX3 also has much better dynamic range than the PC
based SDR approach. On the order of 30 dB or more for blocking dynamic
range than the sound card based SDR RX. For anything besides casual use
this is significant.

On the other hand, the combination of PowerSDR and the K3 -with- the
KRX3 sub RX, is outstanding. It fully integrates with the KRX3's main
and sub RX frequency on its panoramic display.

73, Eric  WA6HHQ


GW0ETF wrote:

>
> Am I correct in assuming that the LP-Pan/PowerSDR combo will give you second
> receive but *only* within the IF passband of the K3, whatever that may be.
>
> The hardware KRX3 will have no restrictions like that and eventually allow
> cross band dual rx too. Can't wait!
>
> 73,
> Stewart Rolfe, GW0ETF (K3 145)
>  

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[Vic K2VCO]

Eric Swartz - WA6HHQ, Elecraft wrote:

> On the other hand, the combination of PowerSDR and the K3 -with- the
> KRX3 sub RX, is outstanding. It fully integrates with the KRX3's main
> and sub RX frequency on its panoramic display.

Eric,
Can you tell us where to find an explanation of how to configure the K3
and KRX3 with PowerSDR to do this?
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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[Brett Howard]

I don't see how it's possible?  Wouldn't you need two IF outputs?

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Vic K2VCO
Sent: Wednesday, July 30, 2008 3:04 PM
To: Eric Swartz - WA6HHQ, Elecraft
Cc: Elecraft Reflector
Subject: Re: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR

Eric Swartz - WA6HHQ, Elecraft wrote:

> On the other hand, the combination of PowerSDR and the K3 -with- the
> KRX3 sub RX, is outstanding. It fully integrates with the KRX3's main
> and sub RX frequency on its panoramic display.

Eric,
Can you tell us where to find an explanation of how to configure the K3
and KRX3 with PowerSDR to do this?
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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[Alan Bloom]

I don't have a KRX3 (yet) but I believe LP-Pan connects to the main
receiver IF output only and simply indicates on the display where the
sub-receiver is tuned (if it is within the bandwidth of the display).

Al N1AL


On Wed, 2008-07-30 at 16:38, Brett Howard wrote:

> I don't see how it's possible?  Wouldn't you need two IF outputs?
>
> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of Vic K2VCO
> Sent: Wednesday, July 30, 2008 3:04 PM
> To: Eric Swartz - WA6HHQ, Elecraft
> Cc: Elecraft Reflector
> Subject: Re: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR
>
> Eric Swartz - WA6HHQ, Elecraft wrote:
>
> > On the other hand, the combination of PowerSDR and the K3 -with- the
> > KRX3 sub RX, is outstanding. It fully integrates with the KRX3's main
> > and sub RX frequency on its panoramic display.
>
> Eric,
> Can you tell us where to find an explanation of how to configure the K3
> and KRX3 with PowerSDR to do this?

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[Brett Howard]

You see then I don't understand how the KRX3 adds much to the PowerSDR
experience (unless you're only using the PowerSDR as a bit of a control
head and you're doing the listening on the K3).  But then the filters
and what not I thought were only controlling filters in the PowerSDR
software as they weren't changing the filter setups in the K3.  What am
I missing here?


On Wed, 2008-07-30 at 17:43 -0700, Alan Bloom wrote:

> I don't have a KRX3 (yet) but I believe LP-Pan connects to the main
> receiver IF output only and simply indicates on the display where the
> sub-receiver is tuned (if it is within the bandwidth of the display).
>
> Al N1AL
>
>
> On Wed, 2008-07-30 at 16:38, Brett Howard wrote:
> > I don't see how it's possible?  Wouldn't you need two IF outputs?
> >
> > -----Original Message-----
> > From: [hidden email]
> > [mailto:[hidden email]] On Behalf Of Vic K2VCO
> > Sent: Wednesday, July 30, 2008 3:04 PM
> > To: Eric Swartz - WA6HHQ, Elecraft
> > Cc: Elecraft Reflector
> > Subject: Re: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR
> >
> > Eric Swartz - WA6HHQ, Elecraft wrote:
> >
> > > On the other hand, the combination of PowerSDR and the K3 -with- the
> > > KRX3 sub RX, is outstanding. It fully integrates with the KRX3's main
> > > and sub RX frequency on its panoramic display.
> >
> > Eric,
> > Can you tell us where to find an explanation of how to configure the K3
> > and KRX3 with PowerSDR to do this?
>

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[Alan Bloom]

The IF output from the K3 is after the mixer but before the crystal
filters.  So one advantage of using the KRX3 is that you get much better
dynamic range due to the crystal filters.  It probably doesn't matter
much for casual listening but for contesting and DXing the KRX3 would
have much better performance.

However, it sounds like the PowerSDR receiver would make a nice
"spotting" receiver, just to get an idea of what is going on on a
frequency.

The ultimate DX station would have a K3, KRX3 and PowerSDR.  The main
receiver is on the frequency of the DX station you are listening to, the
sub-receiver is on the pileup frequency, and the "software" receiver is
available to quickly check out any other interesting pileups you notice
on the panadapter.

Al N1AL


On Wed, 2008-07-30 at 20:38, Brett Howard wrote:

> You see then I don't understand how the KRX3 adds much to the PowerSDR
> experience (unless you're only using the PowerSDR as a bit of a control
> head and you're doing the listening on the K3).  But then the filters
> and what not I thought were only controlling filters in the PowerSDR
> software as they weren't changing the filter setups in the K3.  What am
> I missing here?
>
>
> On Wed, 2008-07-30 at 17:43 -0700, Alan Bloom wrote:
> > I don't have a KRX3 (yet) but I believe LP-Pan connects to the main
> > receiver IF output only and simply indicates on the display where the
> > sub-receiver is tuned (if it is within the bandwidth of the display).
> >
> > Al N1AL
> >
> >
> > On Wed, 2008-07-30 at 16:38, Brett Howard wrote:
> > > I don't see how it's possible?  Wouldn't you need two IF outputs?
> > >
> > > -----Original Message-----
> > > From: [hidden email]
> > > [mailto:[hidden email]] On Behalf Of Vic K2VCO
> > > Sent: Wednesday, July 30, 2008 3:04 PM
> > > To: Eric Swartz - WA6HHQ, Elecraft
> > > Cc: Elecraft Reflector
> > > Subject: Re: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR
> > >
> > > Eric Swartz - WA6HHQ, Elecraft wrote:
> > >
> > > > On the other hand, the combination of PowerSDR and the K3 -with- the
> > > > KRX3 sub RX, is outstanding. It fully integrates with the KRX3's main
> > > > and sub RX frequency on its panoramic display.
> > >
> > > Eric,
> > > Can you tell us where to find an explanation of how to configure the K3
> > > and KRX3 with PowerSDR to do this?
> >

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[Brett Howard]

The part that confuses me is the mention that "[PowerSDR] fully
integrates with the KRX3's main and sub RX frequenciy on its panoramic
display".  

Thats what it does now.  But in order for the KRX3 to actually be adding
anything you'd have to be listening to its output with the full K3
filter chain.  Cause you're not going to correct the dynamic range
problems unless you're doing that.  

Then I don't see how it could allow you to be more than 192KHz/2 away
from your main center freq as you'd have to have two sound cards and two
IF outputs in order to pull that off.  I guess I don't really see a
SubRX adding much to the PowerSDR setup unless you use one RX as a
spotter and the other as simply a K3.  I think that 2 K3's would be a
better setup for that.

I see the subRX in the K3 as a way to make the K3 a better unit as a
standalone unit.  Which I think is one thing that the K3 does really
well especially since you can make RTTY/PSK contacts with just a K3
sitting on your desk and nothing else.  You can also run it as a contest
station for both CW and SSB (once the DVR is out).  I find it quite fun
how much one can get done without the need to interface it to a
computer.  Now don't get me wrong I'm a total computer guy and I find it
even cooler that while it does all this stuff to not require you to have
a computer it also makes is SOOO easy to interface to one when you
decide you want to.  

So I guess all in all color me happy yet still confused as to the KRX3
adding much to a powerSDR setup.

On Wed, 2008-07-30 at 20:56 -0700, Alan Bloom wrote:

> The IF output from the K3 is after the mixer but before the crystal
> filters.  So one advantage of using the KRX3 is that you get much better
> dynamic range due to the crystal filters.  It probably doesn't matter
> much for casual listening but for contesting and DXing the KRX3 would
> have much better performance.
>
> However, it sounds like the PowerSDR receiver would make a nice
> "spotting" receiver, just to get an idea of what is going on on a
> frequency.
>
> The ultimate DX station would have a K3, KRX3 and PowerSDR.  The main
> receiver is on the frequency of the DX station you are listening to, the
> sub-receiver is on the pileup frequency, and the "software" receiver is
> available to quickly check out any other interesting pileups you notice
> on the panadapter.
>
> Al N1AL
>
>
> On Wed, 2008-07-30 at 20:38, Brett Howard wrote:
> > You see then I don't understand how the KRX3 adds much to the PowerSDR
> > experience (unless you're only using the PowerSDR as a bit of a control
> > head and you're doing the listening on the K3).  But then the filters
> > and what not I thought were only controlling filters in the PowerSDR
> > software as they weren't changing the filter setups in the K3.  What am
> > I missing here?
> >
> >
> > On Wed, 2008-07-30 at 17:43 -0700, Alan Bloom wrote:
> > > I don't have a KRX3 (yet) but I believe LP-Pan connects to the main
> > > receiver IF output only and simply indicates on the display where the
> > > sub-receiver is tuned (if it is within the bandwidth of the display).
> > >
> > > Al N1AL
> > >
> > >
> > > On Wed, 2008-07-30 at 16:38, Brett Howard wrote:
> > > > I don't see how it's possible?  Wouldn't you need two IF outputs?
> > > >
> > > > -----Original Message-----
> > > > From: [hidden email]
> > > > [mailto:[hidden email]] On Behalf Of Vic K2VCO
> > > > Sent: Wednesday, July 30, 2008 3:04 PM
> > > > To: Eric Swartz - WA6HHQ, Elecraft
> > > > Cc: Elecraft Reflector
> > > > Subject: Re: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR
> > > >
> > > > Eric Swartz - WA6HHQ, Elecraft wrote:
> > > >
> > > > > On the other hand, the combination of PowerSDR and the K3 -with- the
> > > > > KRX3 sub RX, is outstanding. It fully integrates with the KRX3's main
> > > > > and sub RX frequency on its panoramic display.
> > > >
> > > > Eric,
> > > > Can you tell us where to find an explanation of how to configure the K3
> > > > and KRX3 with PowerSDR to do this?
> > >
>

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[N8LP]

I think what Eric is saying is that if you watch PowerSDR and listen to the K3 / KRX3, it will be a super combination. You will be able to see the passbands of both VFO A and VFO B frequencies and tune either one from the K3 or pan display, as long as the sub-receiver is tuned to within +/- 90kHz of the main receiver.

There are some good reasons why listening to the K3 / KRX3 is desirable, especially for CW (and why the K3 blows the doors off the Flex Radios for CW). The main ones are the latency of the DSP processing in PowerSDR, and the serial interface of the K3. Under extreme contest situations, the added protection of the HAGC will be needed, and on the higher bands (10,6m), the K3 has more usable sensitivity because the transfer loss at the K3 IF output port adds to the NF of the panadapter. And the KRX3 allows cross band listening, more filter slots, etc.

But many non-contesters will find that using the sub receiver in PowerSDR will be a viable option, especially in SSB. PowerSDR is no slouch when it comes to IMD and BDR, and has excellent DSP filtering. Up to about S9 + 65dB (K3 preamp off) the BDR is comparable to the K3 at spacings down to less than 1 kHz. Of course, in both cases transmitter IMD will be a bigger problem than BDR anyway.

Either way, the operational flexibility of the panadapter in split mode is a killer feature. Being able to see holes in a pileup and click on them, or quickly jump to the frequency of the last guy who was answered will be invaluable. When full VFO B support is released in a couple weeks, I'll have some beta testers with KRX3s in hand, and I can get some comparative feedback.

Larry N8LP



Date: Wed, 30 Jul 2008 22:19:10 -0700
From: Brett Howard <[hidden email]>
Subject: RE: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR
To: [hidden email]
Cc: 'Elecraft Reflector' <[hidden email]>, "'Eric Swartz -
        WA6HHQ, Elecraft'" <[hidden email]>
Message-ID: <1217481550.8426.13.camel@lappy>
Content-Type: text/plain

The part that confuses me is the mention that "[PowerSDR] fully
integrates with the KRX3's main and sub RX frequenciy on its panoramic
display".  

Thats what it does now.  But in order for the KRX3 to actually be adding
anything you'd have to be listening to its output with the full K3
filter chain.  Cause you're not going to correct the dynamic range
problems unless you're doing that.  

Then I don't see how it could allow you to be more than 192KHz/2 away
from your main center freq as you'd have to have two sound cards and two
IF outputs in order to pull that off.  I guess I don't really see a
SubRX adding much to the PowerSDR setup unless you use one RX as a
spotter and the other as simply a K3.  I think that 2 K3's would be a
better setup for that.

I see the subRX in the K3 as a way to make the K3 a better unit as a
standalone unit.  Which I think is one thing that the K3 does really
well especially since you can make RTTY/PSK contacts with just a K3
sitting on your desk and nothing else.  You can also run it as a contest
station for both CW and SSB (once the DVR is out).  I find it quite fun
how much one can get done without the need to interface it to a
computer.  Now don't get me wrong I'm a total computer guy and I find it
even cooler that while it does all this stuff to not require you to have
a computer it also makes is SOOO easy to interface to one when you
decide you want to.  

So I guess all in all color me happy yet still confused as to the KRX3
adding much to a powerSDR setup.

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[Brett Howard]

Ok then...  This is pretty much exactly what I expected and makes perfect
sense.  Thanks Larry...  I have to admit that after seeing that video that
the LP-PAN/PowerSDR kit is more than I'd originally thought but you do have
to give up a bit in order to use it that way.  Cool thing is that you only
give it up while you operate in that fashion.  As soon as you go back to
using the rig directly and using the panadapter as a panadapter (rather than
a lot of the rig) all of the K3 happiness is back.  

Very cool gentlemen!  Its exciting to see how quickly people are jumping on
to make products for the K3 that work so well so soon!

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Larry Phipps
Sent: Thursday, July 31, 2008 8:25 AM
To: [hidden email]
Subject: Re: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR

I think what Eric is saying is that if you watch PowerSDR and listen to the
K3 / KRX3, it will be a super combination. You will be able to see the
passbands of both VFO A and VFO B frequencies and tune either one from the
K3 or pan display, as long as the sub-receiver is tuned to within +/- 90kHz
of the main receiver.

There are some good reasons why listening to the K3 / KRX3 is desirable,
especially for CW (and why the K3 blows the doors off the Flex Radios for
CW). The main ones are the latency of the DSP processing in PowerSDR, and
the serial interface of the K3. Under extreme contest situations, the added
protection of the HAGC will be needed, and on the higher bands (10,6m), the
K3 has more usable sensitivity because the transfer loss at the K3 IF output
port adds to the NF of the panadapter. And the KRX3 allows cross band
listening, more filter slots, etc.

But many non-contesters will find that using the sub receiver in PowerSDR
will be a viable option, especially in SSB. PowerSDR is no slouch when it
comes to IMD and BDR, and has excellent DSP filtering. Up to about S9 + 65dB
(K3 preamp off) the BDR is comparable to the K3 at spacings down to less
than 1 kHz. Of course, in both cases transmitter IMD will be a bigger
problem than BDR anyway.

Either way, the operational flexibility of the panadapter in split mode is a
killer feature. Being able to see holes in a pileup and click on them, or
quickly jump to the frequency of the last guy who was answered will be
invaluable. When full VFO B support is released in a couple weeks, I'll have
some beta testers with KRX3s in hand, and I can get some comparative
feedback.

Larry N8LP



Date: Wed, 30 Jul 2008 22:19:10 -0700
From: Brett Howard <[hidden email]>
Subject: RE: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR
To: [hidden email]
Cc: 'Elecraft Reflector' <[hidden email]>, "'Eric Swartz -
        WA6HHQ, Elecraft'" <[hidden email]>
Message-ID: <1217481550.8426.13.camel@lappy>
Content-Type: text/plain

The part that confuses me is the mention that "[PowerSDR] fully
integrates with the KRX3's main and sub RX frequenciy on its panoramic
display".  

Thats what it does now.  But in order for the KRX3 to actually be adding
anything you'd have to be listening to its output with the full K3
filter chain.  Cause you're not going to correct the dynamic range
problems unless you're doing that.  

Then I don't see how it could allow you to be more than 192KHz/2 away
from your main center freq as you'd have to have two sound cards and two
IF outputs in order to pull that off.  I guess I don't really see a
SubRX adding much to the PowerSDR setup unless you use one RX as a
spotter and the other as simply a K3.  I think that 2 K3's would be a
better setup for that.

I see the subRX in the K3 as a way to make the K3 a better unit as a
standalone unit.  Which I think is one thing that the K3 does really
well especially since you can make RTTY/PSK contacts with just a K3
sitting on your desk and nothing else.  You can also run it as a contest
station for both CW and SSB (once the DVR is out).  I find it quite fun
how much one can get done without the need to interface it to a
computer.  Now don't get me wrong I'm a total computer guy and I find it
even cooler that while it does all this stuff to not require you to have
a computer it also makes is SOOO easy to interface to one when you
decide you want to.  

So I guess all in all color me happy yet still confused as to the KRX3
adding much to a powerSDR setup.

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[Jerry Flanders]

Only time I would use PowerSDR for listening is when I want AM or FM.
I don't have either crystal filter in my K3 and PowerSDR is extemely
good on AM receive. Haven't tried FMn, but  expect the same there.
Also, DRM receive is possible for those who want it.

Jerry W4UK

At 12:44 PM 7/31/2008, Brett Howard wrote:

>Ok then...  This is pretty much exactly what I expected and makes perfect
>sense.  Thanks Larry...  I have to admit that after seeing that video that
>the LP-PAN/PowerSDR kit is more than I'd originally thought but you do have
>to give up a bit in order to use it that way.  Cool thing is that you only
>give it up while you operate in that fashion.  As soon as you go back to
>using the rig directly and using the panadapter as a panadapter (rather than
>a lot of the rig) all of the K3 happiness is back.
>
>Very cool gentlemen!  Its exciting to see how quickly people are jumping on
>to make products for the K3 that work so well so soon!
>
>-----Original Message-----
>From: [hidden email]
>[mailto:[hidden email]] On Behalf Of Larry Phipps
>Sent: Thursday, July 31, 2008 8:25 AM
>To: [hidden email]
>Subject: Re: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR
>
>I think what Eric is saying is that if you watch PowerSDR and listen to the
>K3 / KRX3, it will be a super combination. You will be able to see the
>passbands of both VFO A and VFO B frequencies and tune either one from the
>K3 or pan display, as long as the sub-receiver is tuned to within +/- 90kHz
>of the main receiver.
>
>There are some good reasons why listening to the K3 / KRX3 is desirable,
>especially for CW (and why the K3 blows the doors off the Flex Radios for
>CW). The main ones are the latency of the DSP processing in PowerSDR, and
>the serial interface of the K3. Under extreme contest situations, the added
>protection of the HAGC will be needed, and on the higher bands (10,6m), the
>K3 has more usable sensitivity because the transfer loss at the K3 IF output
>port adds to the NF of the panadapter. And the KRX3 allows cross band
>listening, more filter slots, etc.
>
>But many non-contesters will find that using the sub receiver in PowerSDR
>will be a viable option, especially in SSB. PowerSDR is no slouch when it
>comes to IMD and BDR, and has excellent DSP filtering. Up to about S9 + 65dB
>(K3 preamp off) the BDR is comparable to the K3 at spacings down to less
>than 1 kHz. Of course, in both cases transmitter IMD will be a bigger
>problem than BDR anyway.
>
>Either way, the operational flexibility of the panadapter in split mode is a
>killer feature. Being able to see holes in a pileup and click on them, or
>quickly jump to the frequency of the last guy who was answered will be
>invaluable. When full VFO B support is released in a couple weeks, I'll have
>some beta testers with KRX3s in hand, and I can get some comparative
>feedback.
>
>Larry N8LP
>
>
>
>Date: Wed, 30 Jul 2008 22:19:10 -0700
>From: Brett Howard <[hidden email]>
>Subject: RE: [Elecraft] K3: pseudo KRX3 "free" via LP-Pan+Power SDR
>To: [hidden email]
>Cc: 'Elecraft Reflector' <[hidden email]>, "'Eric Swartz -
>         WA6HHQ, Elecraft'" <[hidden email]>
>Message-ID: <1217481550.8426.13.camel@lappy>
>Content-Type: text/plain
>
>The part that confuses me is the mention that "[PowerSDR] fully
>integrates with the KRX3's main and sub RX frequenciy on its panoramic
>display".
>
>Thats what it does now.  But in order for the KRX3 to actually be adding
>anything you'd have to be listening to its output with the full K3
>filter chain.  Cause you're not going to correct the dynamic range
>problems unless you're doing that.
>
>Then I don't see how it could allow you to be more than 192KHz/2 away
>from your main center freq as you'd have to have two sound cards and two
>IF outputs in order to pull that off.  I guess I don't really see a
>SubRX adding much to the PowerSDR setup unless you use one RX as a
>spotter and the other as simply a K3.  I think that 2 K3's would be a
>better setup for that.
>
>I see the subRX in the K3 as a way to make the K3 a better unit as a
>standalone unit.  Which I think is one thing that the K3 does really
>well especially since you can make RTTY/PSK contacts with just a K3
>sitting on your desk and nothing else.  You can also run it as a contest
>station for both CW and SSB (once the DVR is out).  I find it quite fun
>how much one can get done without the need to interface it to a
>computer.  Now don't get me wrong I'm a total computer guy and I find it
>even cooler that while it does all this stuff to not require you to have
>a computer it also makes is SOOO easy to interface to one when you
>decide you want to.
>
>So I guess all in all color me happy yet still confused as to the KRX3
>adding much to a powerSDR setup.
>
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