Re: [Elecraft] LP-PAN 2 and P3

[Jorge Diez - CX6VM]

THANKS for all the replies, very clear to understand!

And also need to use N1mm like Davis, hope I can do it

Thanks,
Jorge


-Mensaje original-
De: Elecraft [mailto:elecraft-boun...@mailman.qth.net] En nombre de David
Smith
Enviado el: jueves, 15 de octubre de 2015 07:10 a.m.
Para: elecraft@mailman.qth.net
Asunto: Re: [Elecraft] LP-PAN 2 and P3

I have an additional question in addition to Jorge.  I recently installed my
LPAN2 (I do not have a P3).  

My question is that can I run my LPAN2 at the same time I run N1MM+.   I
tried and got a port conflict the with K3.  Also, I run SO2R with 2 K3s and
never made it that far to check additional port conflicts as I didn't make
it past the first port conflict.

Any comments appreciated.

David, ND4Y

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jorge
Diez - CX6VM
Sent: Wednesday, October 14, 2015 9:01 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] LP-PAN 2 and P3

Hello

 

I am looking for information about LP-PAN 2 and the P3 SVGA

 

Not understand at all about them, are the same?

 

May I use LP-PAN 2 without P3 or there´s any benefit using both LP-PAN 2 and
P3 

 

Or is better to use just the P3 SVGA

 

Thanks,

Jorge

CX6VM/CW5W

 

 



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Re: [Elecraft] LP-PAN 2 and P3

[Don Wilhelm]

LPB2 is a version of LP-Bridge that is intended for use with 
transceivers other than the K3 (K3S and KX3).
If you are running a K3, LP-Bridge (not LPB2) will provide better 
performance because it buffers some of the K3 information and thus 
reduces the need for frequent access to the K3 for information.  As a 
"for instance", LPB knows that the K3 is in USB mode, so when an 
application connected to one if its virtual ports polls for the mode of 
the K3, LPB can send that to the application without polling the K3 - in 
other words, it reduces the traffic between the computer and the K3.


Since LPB2 is not K3 dedicated, I would expect that there would be more 
direct accesses to the K3 than with LPB.


In other words, LPB2 is *not* an updated revision of LPB.

73,
Don W3FPR

On 10/15/2015 8:52 AM, Ken wrote:

David,

I'm using LPB2 (LP Bridge) to handle the serial port  access. FWIW, I 
use DX Lab Commander for multi rig use.   That works especially well 
for allowing either rig (K3 or Flex 6300) access control to the 
KAT-500 tuner as well as logging software, fldigi, etc.




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Re: [Elecraft] LP-PAN 2 and P3

[David Smith]

I have an additional question in addition to Jorge.  I recently installed my
LPAN2 (I do not have a P3).  

My question is that can I run my LPAN2 at the same time I run N1MM+.   I
tried and got a port conflict the with K3.  Also, I run SO2R with 2 K3s and
never made it that far to check additional port conflicts as I didn't make
it past the first port conflict.

Any comments appreciated.

David, ND4Y

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jorge
Diez - CX6VM
Sent: Wednesday, October 14, 2015 9:01 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] LP-PAN 2 and P3

Hello

 

I am looking for information about LP-PAN 2 and the P3 SVGA

 

Not understand at all about them, are the same?

 

May I use LP-PAN 2 without P3 or there´s any benefit using both LP-PAN 2 and
P3 

 

Or is better to use just the P3 SVGA

 

Thanks,

Jorge

CX6VM/CW5W

 

 



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Re: [Elecraft] LP-PAN 2 and P3

[Don Wilhelm]

David,

LP-Pan is just a piece of hardware, and has no connection with COM ports.
However, the software application that shows you the panadapter display 
on the computer will usually use a COM port to indicate the frequency on 
the display and may have some other rig control functions.
Note that a com port is not *required* for the panadapter display 
portion, only a soundcard is needed for that - however, that panadapter 
display becomes more useful if the frequency is collected from the rig 
via the COM port.


One application at a time is able to use a physical COM port, but there 
are software applications that provide virtual port replication - like 
LP-Bridge.
LP-bridge connects to the COM port used by the transceiver and other 
applications that also need to 'talk' to the transceiver connect to the 
virtual ports of LP-Bridge.


An alternative to LP-Bridge is Win4K3suite which does the same port 
"expansion" function in a slightly different manner.  Also Google for 
"virtual COM port" for other alternatives.


You will find more information on LP-Pan and LP-Bridge on the 
www.telepostinc.com website and on the LP-Pan Yahoo group.


73,
Don W3FPR

On 10/15/2015 6:10 AM, David Smith wrote:

I have an additional question in addition to Jorge.  I recently installed my
LPAN2 (I do not have a P3).

My question is that can I run my LPAN2 at the same time I run N1MM+.   I
tried and got a port conflict the with K3.  Also, I run SO2R with 2 K3s and
never made it that far to check additional port conflicts as I didn't make
it past the first port conflict.




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Re: [Elecraft] LP-PAN 2 and P3

[Ken]

David,

I'm using LPB2 (LP Bridge) to handle the serial port  access. FWIW, I 
use DX Lab Commander for multi rig use.   That works especially well for 
allowing either rig (K3 or Flex 6300) access control to the KAT-500 
tuner as well as logging software, fldigi, etc.


Ken WA8JXM

On 10/15/15 6:10 AM, David Smith wrote:

I have an additional question in addition to Jorge.  I recently installed my
LPAN2 (I do not have a P3).

My question is that can I run my LPAN2 at the same time I run N1MM+.   I
tried and got a port conflict the with K3.  Also, I run SO2R with 2 K3s and
never made it that far to check additional port conflicts as I didn't make
it past the first port conflict.

Any comments appreciated.


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Re: [Elecraft] LP-PAN 2 and P3

[Art Hejduk]

Jorge,

I went the cheapest route, and it works quite well.  I use a softrock lite
II which cost $21.  I needed a stereo sound card for my laptop, so I
ordered a USB sound card for around $14 from Amazon.  I later changed to a
Xonar U5 sound card, which cost $60 after a $10 rebate.  It is a better
sound card, but honestly, the $14 sound card was more than sufficient for
my needs.  The Xonar U5 gives twice the viewed spectrum compared with the
$14 sound card, but when I operate CW, which is most of the time, I don't
view more than about 60kHz anyway.  Adding an enclosure for a couple of
dollars from Radio Shack makes the whole package cost under $100 (using the
more expensive $60 sound card).  I use NaP3 software with this setup..

By the way, my first experience with a panadapter was with HDSDR and a
Peaberry V2 transceiver.  Since it is an SDR, I tried connecting the
Peaberry V2 to my K3 IF output, and it worked great as a panadapter using
NaP3,  I then decided to buy the softrock lite II to free up the Peaberry
V2 since I didn't want to dedicate it to being just an SDR receiver in this
application.

A great part of the fun for me is getting a project working.  This is
certainly not as easy as buying a P3 and plugging it in, but it is much
cheaper, and not all that difficult.

73,
Art  WB8ENE


On Wed, Oct 14, 2015 at 9:01 PM, Jorge Diez - CX6VM 
wrote:

> Hello
>
>
>
> I am looking for information about LP-PAN 2 and the P3 SVGA
>
>
>
> Not understand at all about them, are the same?
>
>
>
> May I use LP-PAN 2 without P3 or there´s any benefit using both LP-PAN 2
> and
> P3
>
>
>
> Or is better to use just the P3 SVGA
>
>
>
> Thanks,
>
> Jorge
>
> CX6VM/CW5W
>
>
>
>
>
>
>
> ---
> El software de antivirus Avast ha analizado este correo electrónico en
> busca de virus.
> https://www.avast.com/antivirus
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Re: [Elecraft] LP-PAN 2 and P3

[Jim Brown]

On Wed,10/14/2015 11:33 PM, David Gilbert wrote:
One that is dear to my heart would be an application that quantifies 
splatter and key clicks from crummy signals. 


Properly adjusted, the P3, especially with the SVGA adapter, can do an 
excellent job of displaying wide, dirty signals. Here are some things 
I've done with my P3/SVGA. Also look at my P3 measurements (no SVGA yet) in


http://k9yc.com/K6XXAmpTalk.pdf

Yes, the P3 dynamic range is only about 100 dB and only 80 dB can be 
displayed on screen, but all the serious trash is in the range of 20-50 
dB below the peak of any given signal.


73, Jim K9YC
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Re: [Elecraft] LP-PAN 2 and P3

[David Gilbert]

From my point of view there is another consideration at hand here. A 
hardware interface like LP-Pan that provides I-Q signals to a PC sound 
card allows the use of other SDR-type software like CW Skimmer, and 
while CW Skimmer may not be of interest to everyone I believe other 
third party software will eventually show up that would be desirable to me.


One that is dear to my heart would be an application that quantifies 
splatter and key clicks from crummy signals.  I suspect that would be 
difficult for SSB signals, but I can't think of any reason why it 
wouldn't be practical for CW.


Another possibility might be an app that profiles propagation over time 
based upon received callsigns with the rig otherwise unattended.


The P3 is a panadapter, and by all accounts a very good one ... but an 
LP-Pan with the right software could be much more.


73,
Dave   AB7E

p.s.  As far as I know, the P3 has to generate its own I-Q signals 
internally.  I've never understood why Elecraft didn't provide them as 
buffered outputs from the P3 to make it more versatile.  Somebody please 
correct me if I'm wrong here.




On 10/14/2015 9:07 PM, Matthew Cook wrote:

Jorge,

Don has given you a good summary of the two devices.

When considering the PC path you should be aware that there is more
opportunity to receive and display a much wider bandwidth than either the
P3 or LP-Pan can provide.  At the moment both the P3 and LP-Pan are limited
to 200kHz and 192kHz of bandwidth respectively.  So they can see +/-100kHz
or so either side of the  current VCO frequency at full span.  This is
great for giving you situational awareness of who and what is happening
either side of your VCO frequency.

However if you own a Software Defined Radio and have a transverter
interface in your Elecraft rig, you can take full advantage of the RX Loop
terminals and insert a RF splitter like this (
http://www.minicircuits.com/pdfs/ZSC-2-1.pdf).   With this setup it means
that signals come in off your antenna are routed out the RX Loop out
terminal and in to the splitter; one path then turns back into the radio
through the RF Loop In terminals (albeit with a 3.6dB loss) and the other
path can be taken off to the SDR. You need to purchase the RX Splitter
separately ~US$20-40 off ebay.

This splitter effectively puts both your SDR and K3/K3s receivers in
parallel fed off the same antenna, just keep in mind that signal levels
into both the Rx and SDR will be half an S-point lower due to the spliter
insertion loss.   If signals fade or are weak, you can switch the RX loop
out of circuit and bypass the splitter, handy trick on a K3 since there's a
button for it. My favourite button actually.

So the hidden benefits of an external SDR in liu of the P3 and LP-Pan are;

- ability to monitor another band and wait for it to open
   - watch for 10m activity while 15m is running
   - keep an eye on 6m while playing on HF
- Youi can achieve pan-adaptor bandwidths greater than 200kHz
- Watch an entire band for activity at once BW > 400kHz

The downside however is that the SDR's that can survive strong signals
without turning up their toes will cost you hundreds of dollars, theres
more software work and jigging and poking of software to get them to go.

It is also possible with a tiny bit more software work to have the SDR and
K3 frequencies and mode track, which means you get mouse control over the
K3 where you can click on the SDR waterfall on the PC and have the K3 track
the SDR, you can also have the SDR change bands when you press the Band
Keys on the K3.

I personally find that with a good SDR I've not felt the need for the
second RX option in my K3 yet.   I do however use a RFSpace Cloud-IQ that
can monitor 1.8MHz with a reasonable dynamic range.  Previously I've used
the RFSpace SDR-IQ and Funcube Dongle Pro plus, results with both were
excellent.   I prefer SDR Radio for my pan-adaptor.  We've used this setup
in our multi-multi contest QRO contest station for a number of years, 24"
portrait pan-adaptor displays are now common in our club.

However as Don has already mentioned, you need to decide on a PC (LP-Pan or
SDR) or no PC path (P3).

There is alot of fun to be had with an external SDR too if you want to push
the boundary.  All of the devices discussed work as described, I don't
think you'll be disappointed which ever way you go.  I will however be
selling my LP-Pan2 adaptor in the not too distant future.

I hope that the above helps.  YMMV.

73

Matthew
VK5ZM

On 15 October 2015 at 13:24, Don Wilhelm  wrote:


Jorge,

The goal of both the P3 and LP-Pan (with PC software) is the same -- to
give you a panadapter display of the IF output of the K3 (K3S) or any other
radio.

The P3 does it by direct digital means and displays the resulting spectrum
and waterfall on the native screen.  With the SVGA option, it can display
the same information on a larger SVGA monitor - no computer is involved.

Re: [Elecraft] LP-PAN 2 and P3

[Larry Phipps]

Only one program can connect directly to a serial device like the K3. 
You need to use a port sharing app like LP-Bridge or several others out 
there to allow this to happen. LP-Bridge in this case connects to the 
K3, and lets you create "virtual" ports for the SDR program, loggers, 
etc. That way, each program thinks it's talking directly to the K3, but 
in fact the virtual port traffic is routed and sequenced within the app 
to get access to the K3 as needed.


Here's a link to my LP-Bridge web page...
http://www.telepostinc.com/LPB.html

Larry N8LP



On 10/15/2015 6:10 AM, elecraft-requ...@mailman.qth.net wrote:

Message: 24
Date: Thu, 15 Oct 2015 06:10:13 -0400
From: "David Smith"<dlsm...@harlanonline.net>
To:<elecraft@mailman.qth.net>
Subject: Re: [Elecraft] LP-PAN 2 and P3
Message-ID:<01d10731$aeae5e70$0c0b1b50$@harlanonline.net>
Content-Type: text/plain;   charset="iso-8859-1"

I have an additional question in addition to Jorge.  I recently installed my
LPAN2 (I do not have a P3).

My question is that can I run my LPAN2 at the same time I run N1MM+.   I
tried and got a port conflict the with K3.  Also, I run SO2R with 2 K3s and
never made it that far to check additional port conflicts as I didn't make
it past the first port conflict.

Any comments appreciated.

David, ND4Y


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Re: [Elecraft] LP-PAN 2 and P3

[ae4pb]

LP-Bridge is not stable on windows 10 used with the newest ham radio deluxe.
It's been reported to be an HRD issue but I've had LPB crash on it's own
without anything else running on windows 10.
It likely needs an update. 

Jerry Moore
CDXA, INDEXA, SKCC, Fists
AE4PB, K3S - S.N. 010324
http://www.qrz.com/db/AE4PB
An Amateur is - Considerate, Loyal, Progressive, Friendly, Balanced, and
Patriotic.


-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Larry
Phipps
Sent: Thursday, October 15, 2015 9:08 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] LP-PAN 2 and P3

Only one program can connect directly to a serial device like the K3. 
You need to use a port sharing app like LP-Bridge or several others out
there to allow this to happen. LP-Bridge in this case connects to the K3,
and lets you create "virtual" ports for the SDR program, loggers, etc. That
way, each program thinks it's talking directly to the K3, but in fact the
virtual port traffic is routed and sequenced within the app to get access to
the K3 as needed.

Here's a link to my LP-Bridge web page...
http://www.telepostinc.com/LPB.html

Larry N8LP



On 10/15/2015 6:10 AM, elecraft-requ...@mailman.qth.net wrote:
> Message: 24
> Date: Thu, 15 Oct 2015 06:10:13 -0400
> From: "David Smith"<dlsm...@harlanonline.net> 
> To:<elecraft@mailman.qth.net>
> Subject: Re: [Elecraft] LP-PAN 2 and P3 
> Message-ID:<01d10731$aeae5e70$0c0b1b50$@harlanonline.net>
> Content-Type: text/plain; charset="iso-8859-1"
>
> I have an additional question in addition to Jorge.  I recently 
> installed my
> LPAN2 (I do not have a P3).
>
> My question is that can I run my LPAN2 at the same time I run N1MM+.   I
> tried and got a port conflict the with K3.  Also, I run SO2R with 2 
> K3s and never made it that far to check additional port conflicts as I 
> didn't make it past the first port conflict.
>
> Any comments appreciated.
>
> David, ND4Y

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Re: [Elecraft] LP-PAN 2 and P3

[David Gilbert]

OK ... thanks for the clarification.

Dave   AB7E


On 10/15/2015 1:13 PM, Alan wrote:

On 10/14/2015 11:33 PM, David Gilbert wrote:


p.s.  As far as I know, the P3 has to generate its own I-Q signals
internally.  I've never understood why Elecraft didn't provide them as
buffered outputs from the P3 to make it more versatile. Somebody please
correct me if I'm wrong here.


The P3 does convert the IF signal to I and Q, but it is all done 
digitally.  To get analog I/Q out of the P3 would require adding a 
dual DAC (digital to analog converter) and some kind of anti-alias 
filter that would handle the variable sample rate.


Alan

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Re: [Elecraft] LP-PAN 2 and P3

[Jorge Diez - CX6VM]

Hi Steve

 

Well, PC will be a issue, I not have good PC´s with the radio. Just Dual core 
and not new, I am using two Dell 630 

 

Thanks for the advise

 

De: Steve Lund [mailto:k6um.el...@gmail.com] 
Enviado el: jueves, 15 de octubre de 2015 01:47 p.m.
Para: Jorge Diez - CX6VM
CC: Elecraft Reflector
Asunto: Re: [Elecraft] LP-PAN 2 and P3

 

Jorge,

There is a good comparison chart for the LP-PAN vs P3 on the telepostinc 
website (http://www.telepostinc.com/).

I recently got my LP-PAN working with NaP3. No one has commented about pc 
requirements. I originally tried to use LP-PAN with my single core XP pc. While 
it ran, the cpu load was 100% and no other software could be run with it. I 
recently upgraded to a 4 core 64 bit Win7Pro pc. The cpu load is around 20% 
with LP-PAN running along with my logging and packetcluster software. You'll 
also want a large monitor (or put a dual monitor card in the pc) as once you 
get hooked on LP-PAN, you'll always have it running!

The only advantage I see for the P3 is that a computer is not required.

Steve, K6UM

 

On Thu, Oct 15, 2015 at 3:40 AM, Jorge Diez - CX6VM <cx6vm.jo...@gmail.com> 
wrote:

THANKS for all the replies, very clear to understand!

And also need to use N1mm like Davis, hope I can do it

Thanks,
Jorge


-Mensaje original-
De: Elecraft [mailto:elecraft-boun...@mailman.qth.net] En nombre de David
Smith
Enviado el: jueves, 15 de octubre de 2015 07:10 a.m.
Para: elecraft@mailman.qth.net
Asunto: Re: [Elecraft] LP-PAN 2 and P3


I have an additional question in addition to Jorge.  I recently installed my
LPAN2 (I do not have a P3).

My question is that can I run my LPAN2 at the same time I run N1MM+.   I
tried and got a port conflict the with K3.  Also, I run SO2R with 2 K3s and
never made it that far to check additional port conflicts as I didn't make
it past the first port conflict.

Any comments appreciated.

David, ND4Y

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jorge
Diez - CX6VM
Sent: Wednesday, October 14, 2015 9:01 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] LP-PAN 2 and P3

Hello



I am looking for information about LP-PAN 2 and the P3 SVGA



Not understand at all about them, are the same?



May I use LP-PAN 2 without P3 or there´s any benefit using both LP-PAN 2 and
P3



Or is better to use just the P3 SVGA



Thanks,

Jorge

CX6VM/CW5W







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Re: [Elecraft] LP-PAN 2 and P3

[Robert G Strickland]

I second the option of sticking with W7. W10 does a lot of things that I 
just don't need. Why fix what isn't broken.

...robert

On 10/15/2015 14:18, Don Wilhelm wrote:

Jer,

Try HRD version 5 which does not use unicode.  Or use something other
than HRD.  HRD does a lot of polling of the K3 and ties up computer
resources.
LP-Bridge currently does not support Unicode, but I understand Larry is
working on it.

OTOH, you may want to revert to Windows 7 where all is stable. Yeah, the
propaganda from Microsoft would say that there is not a problem with
Windows 10, but users reports indicate otherwise. Support for Win7 is
available through 2020, so I am sticking with Win7 for now.  No sense in
messing with what is currently working.

73,
Don W3FPR

On 10/15/2015 9:43 AM, ae...@carolinaheli.com wrote:

LP-Bridge is not stable on windows 10 used with the newest ham radio
deluxe.
It's been reported to be an HRD issue but I've had LPB crash on it's own
without anything else running on windows 10.
It likely needs an update.




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--
Robert G Strickland, PhD ABPH - KE2WY
rc...@verizon.net.usa
Syracuse, New York, USA
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Re: [Elecraft] LP-PAN 2 and P3

[Alan]

On 10/14/2015 11:33 PM, David Gilbert wrote:


p.s.  As far as I know, the P3 has to generate its own I-Q signals
internally.  I've never understood why Elecraft didn't provide them as
buffered outputs from the P3 to make it more versatile.  Somebody please
correct me if I'm wrong here.


The P3 does convert the IF signal to I and Q, but it is all done 
digitally.  To get analog I/Q out of the P3 would require adding a dual 
DAC (digital to analog converter) and some kind of anti-alias filter 
that would handle the variable sample rate.


Alan

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Re: [Elecraft] LP-PAN 2 and P3

[Steve Lund]

Jorge,

There is a good comparison chart for the LP-PAN vs P3 on the telepostinc
website (http://www.telepostinc.com/).

I recently got my LP-PAN working with NaP3. No one has commented about pc
requirements. I originally tried to use LP-PAN with my single core XP pc.
While it ran, the cpu load was 100% and no other software could be run with
it. I recently upgraded to a 4 core 64 bit Win7Pro pc. The cpu load is
around 20% with LP-PAN running along with my logging and packetcluster
software. You'll also want a large monitor (or put a dual monitor card in
the pc) as once you get hooked on LP-PAN, you'll always have it running!

The only advantage I see for the P3 is that a computer is not required.

Steve, K6UM

On Thu, Oct 15, 2015 at 3:40 AM, Jorge Diez - CX6VM <cx6vm.jo...@gmail.com>
wrote:

> THANKS for all the replies, very clear to understand!
>
> And also need to use N1mm like Davis, hope I can do it
>
> Thanks,
> Jorge
>
>
> -Mensaje original-
> De: Elecraft [mailto:elecraft-boun...@mailman.qth.net] En nombre de David
> Smith
> Enviado el: jueves, 15 de octubre de 2015 07:10 a.m.
> Para: elecraft@mailman.qth.net
> Asunto: Re: [Elecraft] LP-PAN 2 and P3
>
> I have an additional question in addition to Jorge.  I recently installed
> my
> LPAN2 (I do not have a P3).
>
> My question is that can I run my LPAN2 at the same time I run N1MM+.   I
> tried and got a port conflict the with K3.  Also, I run SO2R with 2 K3s and
> never made it that far to check additional port conflicts as I didn't make
> it past the first port conflict.
>
> Any comments appreciated.
>
> David, ND4Y
>
> -Original Message-
> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
> Jorge
> Diez - CX6VM
> Sent: Wednesday, October 14, 2015 9:01 PM
> To: elecraft@mailman.qth.net
> Subject: [Elecraft] LP-PAN 2 and P3
>
> Hello
>
>
>
> I am looking for information about LP-PAN 2 and the P3 SVGA
>
>
>
> Not understand at all about them, are the same?
>
>
>
> May I use LP-PAN 2 without P3 or there´s any benefit using both LP-PAN 2
> and
> P3
>
>
>
> Or is better to use just the P3 SVGA
>
>
>
> Thanks,
>
> Jorge
>
> CX6VM/CW5W
>
>
>
>
>
>
>
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Re: [Elecraft] LP-PAN 2 and P3

[David Gilbert]

I was thinking more along the lines of an app that would calculate an 
actual numerical figure of merit.  Something along the lines of:


*  you tune to a signal of interest
*  the app breaks up the surrounding spectrum into 100 Hz windows
*  the app measures the magnitude of the energy in each 100 Hz window 
that is time-correlated to the energy in the center window
*  the app assigns some sort of weighting to the time-correlated energy 
it finds in each 100 Hz window ... further from center gets weighted 
more heavily
*  adding up all the weighted slices of time-correlated energy yields a 
figure of merit


The P3 can identify bad signals but it can't quantify them, and being 
able to objectively quantify them might go a long way toward getting 
some of them off the air.


73,
Dave   AB7E




On 10/15/2015 12:01 AM, Jim Brown wrote:

On Wed,10/14/2015 11:33 PM, David Gilbert wrote:
One that is dear to my heart would be an application that quantifies 
splatter and key clicks from crummy signals. 


Properly adjusted, the P3, especially with the SVGA adapter, can do an 
excellent job of displaying wide, dirty signals. Here are some things 
I've done with my P3/SVGA. Also look at my P3 measurements (no SVGA 
yet) in


http://k9yc.com/K6XXAmpTalk.pdf

Yes, the P3 dynamic range is only about 100 dB and only 80 dB can be 
displayed on screen, but all the serious trash is in the range of 
20-50 dB below the peak of any given signal.


73, Jim K9YC
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Re: [Elecraft] LP-PAN 2 and P3

[Ken]

On 10/15/15 12:46 PM, Steve Lund wrote:

You'll also want a large monitor (or put a dual monitor card in
the pc) as once you get hooked on LP-PAN, you'll always have it running!


You don't really need another monitor card on many newer computers.   
Many newer computers have both VGA and DVI outputs. You can connect 
monitors to both of them and have independent screens.


Of course, if you have a panadapter running, plus logging software, dx 
cluster, etc.   two monitors may not be enough!   I just added an 
external USB-to-VGA adapter and hooked up an old LCD TV for a third 
display.


73,
Ken WA8JXM
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Re: [Elecraft] LP-PAN 2 and P3

[Don Wilhelm]

Jer,

Try HRD version 5 which does not use unicode.  Or use something other 
than HRD.  HRD does a lot of polling of the K3 and ties up computer 
resources.
LP-Bridge currently does not support Unicode, but I understand Larry is 
working on it.


OTOH, you may want to revert to Windows 7 where all is stable. Yeah, the 
propaganda from Microsoft would say that there is not a problem with 
Windows 10, but users reports indicate otherwise. Support for Win7 is 
available through 2020, so I am sticking with Win7 for now.  No sense in 
messing with what is currently working.


73,
Don W3FPR

On 10/15/2015 9:43 AM, ae...@carolinaheli.com wrote:

LP-Bridge is not stable on windows 10 used with the newest ham radio deluxe.
It's been reported to be an HRD issue but I've had LPB crash on it's own
without anything else running on windows 10.
It likely needs an update.




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Re: [Elecraft] LP-PAN 2 and P3

[Matthew Cook]

Jorge,

Don has given you a good summary of the two devices.

When considering the PC path you should be aware that there is more
opportunity to receive and display a much wider bandwidth than either the
P3 or LP-Pan can provide.  At the moment both the P3 and LP-Pan are limited
to 200kHz and 192kHz of bandwidth respectively.  So they can see +/-100kHz
or so either side of the  current VCO frequency at full span.  This is
great for giving you situational awareness of who and what is happening
either side of your VCO frequency.

However if you own a Software Defined Radio and have a transverter
interface in your Elecraft rig, you can take full advantage of the RX Loop
terminals and insert a RF splitter like this (
http://www.minicircuits.com/pdfs/ZSC-2-1.pdf).   With this setup it means
that signals come in off your antenna are routed out the RX Loop out
terminal and in to the splitter; one path then turns back into the radio
through the RF Loop In terminals (albeit with a 3.6dB loss) and the other
path can be taken off to the SDR. You need to purchase the RX Splitter
separately ~US$20-40 off ebay.

This splitter effectively puts both your SDR and K3/K3s receivers in
parallel fed off the same antenna, just keep in mind that signal levels
into both the Rx and SDR will be half an S-point lower due to the spliter
insertion loss.   If signals fade or are weak, you can switch the RX loop
out of circuit and bypass the splitter, handy trick on a K3 since there's a
button for it. My favourite button actually.

So the hidden benefits of an external SDR in liu of the P3 and LP-Pan are;

   - ability to monitor another band and wait for it to open
  - watch for 10m activity while 15m is running
  - keep an eye on 6m while playing on HF
   - Youi can achieve pan-adaptor bandwidths greater than 200kHz
   - Watch an entire band for activity at once BW > 400kHz

The downside however is that the SDR's that can survive strong signals
without turning up their toes will cost you hundreds of dollars, theres
more software work and jigging and poking of software to get them to go.

It is also possible with a tiny bit more software work to have the SDR and
K3 frequencies and mode track, which means you get mouse control over the
K3 where you can click on the SDR waterfall on the PC and have the K3 track
the SDR, you can also have the SDR change bands when you press the Band
Keys on the K3.

I personally find that with a good SDR I've not felt the need for the
second RX option in my K3 yet.   I do however use a RFSpace Cloud-IQ that
can monitor 1.8MHz with a reasonable dynamic range.  Previously I've used
the RFSpace SDR-IQ and Funcube Dongle Pro plus, results with both were
excellent.   I prefer SDR Radio for my pan-adaptor.  We've used this setup
in our multi-multi contest QRO contest station for a number of years, 24"
portrait pan-adaptor displays are now common in our club.

However as Don has already mentioned, you need to decide on a PC (LP-Pan or
SDR) or no PC path (P3).

There is alot of fun to be had with an external SDR too if you want to push
the boundary.  All of the devices discussed work as described, I don't
think you'll be disappointed which ever way you go.  I will however be
selling my LP-Pan2 adaptor in the not too distant future.

I hope that the above helps.  YMMV.

73

Matthew
VK5ZM

On 15 October 2015 at 13:24, Don Wilhelm  wrote:

> Jorge,
>
> The goal of both the P3 and LP-Pan (with PC software) is the same -- to
> give you a panadapter display of the IF output of the K3 (K3S) or any other
> radio.
>
> The P3 does it by direct digital means and displays the resulting spectrum
> and waterfall on the native screen.  With the SVGA option, it can display
> the same information on a larger SVGA monitor - no computer is involved.
>
> LP-Pan is a hardware box that takes the IF output and produces I/Q
> quadrature audio outputs.  Those I/Q outputs must be sent to a soundcard
> and processed by a computer running SDR software (HDSDR, Win4K3suite, NaP3,
> etc.) to produce a spectrum display and waterfall.
>
> If you are trying to decide between the two solutions, consider the
> "computer or no computer" considerations.  LP-Pan requires a computer to
> process the I/Q signals, but the P3 (with or without the SVGA option) is
> independent of an external computer.  The P3 with SVGA option simply
> provides a larger display on an SVGA monitor (no computer involved).
>
> If you are willing to deal with 'computer things' like soundcard setup
> problems and software application setup problems running on the computer,
> then LP-Pan may be an OK solution for you.  However, if you want something
> that can provide a panadapter display without dependency on a computer,
> then the P3 would be the best choice (with or without the SVGA option).
>
> 73,
> Don W3FPR
>
> On 10/14/2015 9:01 PM, Jorge Diez - CX6VM wrote:
>
>> Hello
>>
>> I am looking for information about LP-PAN 2 and the P3 SVGA
>>

Re: [Elecraft] LP-PAN 2 and P3

[Don Wilhelm]

Jorge,

The goal of both the P3 and LP-Pan (with PC software) is the same -- to 
give you a panadapter display of the IF output of the K3 (K3S) or any 
other radio.


The P3 does it by direct digital means and displays the resulting 
spectrum and waterfall on the native screen.  With the SVGA option, it 
can display the same information on a larger SVGA monitor - no computer 
is involved.


LP-Pan is a hardware box that takes the IF output and produces I/Q 
quadrature audio outputs.  Those I/Q outputs must be sent to a soundcard 
and processed by a computer running SDR software (HDSDR, Win4K3suite, 
NaP3, etc.) to produce a spectrum display and waterfall.


If you are trying to decide between the two solutions, consider the 
"computer or no computer" considerations.  LP-Pan requires a computer to 
process the I/Q signals, but the P3 (with or without the SVGA option) is 
independent of an external computer.  The P3 with SVGA option simply 
provides a larger display on an SVGA monitor (no computer involved).


If you are willing to deal with 'computer things' like soundcard setup 
problems and software application setup problems running on the 
computer, then LP-Pan may be an OK solution for you.  However, if you 
want something that can provide a panadapter display without dependency 
on a computer, then the P3 would be the best choice (with or without the 
SVGA option).


73,
Don W3FPR

On 10/14/2015 9:01 PM, Jorge Diez - CX6VM wrote:

Hello

I am looking for information about LP-PAN 2 and the P3 SVGA

Not understand at all about them, are the same?

May I use LP-PAN 2 without P3 or there´s any benefit using both LP-PAN 2 and
P3

Or is better to use just the P3 SVGA




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