[Elecraft] LPPan vs. P3

[Scott Prather]

One aspect of the LP Pan/PowerSDR-IF combination that hasn't been mentioned
is that in addition to serving as a panadapter, PowerSDR-IF is a complete
receiver, totally independent of any settings on the K3 itself other than
the operating frequency. The LP Pan I/Q demodulator obtains its sample from
the K3's 1st IF, which is about 200 kHz wide. PowerSDR-IF includes filters,
AGC and demodulators (implemented in software) to support LSB, USB, AM,
Synchronous AM, etc. The AM audio quality is superior to that of the K3,
because there's no roofing filter in front of the demodulator. So if you are
looking for a second receiver to use with your K3 or are looking for the
ability to utilize a bandwidth far wider than what's possible with the K3
itself, the LP Pan/PowerSDR-IF combination will do that for you. 

However, keep in mind that there's a cost associated with this flexibility,
namely that your PC must have a dual-core CPU to run PowerSDR-IF
successfully, and you'll need a high quality, wideband soundcard. Also, with
200 kHz bandwidth in front of the LP Pan I/Q demodulator, this greatly
increases the chances that the demodulator and/or the sound card will be
overloaded by very strong signals, creating serious intermodulation
distortion. Like any technical solutions, it has its pluses and minuses.

Scott
N7NB



-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Tony McClenny
Sent: Thursday, August 05, 2010 1:40 PM
To: K4IA at aol.com; elecraft at mailman.qth.net
Subject: Re: [Elecraft] LPPan vs. P3

Buck,

I too would like to hear from those with the experience to discuss both
units - good suggestion.  Thank you.

- Tony, N3ME -

118 Ashwood Street
Bethany Beach, DE 19930-9699
(302) 539-5638
Grid:  FM28lm
http://www.n3me.net
Elecraft K3 # 2462

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of K4IA at aol.com
Sent: Thursday, August 05, 2010 19:54 PM
To: elecraft at mailman.qth.net
Subject: [Elecraft] LPPan vs. P3

I am using the LPPan and am very happy with the  large screen, the 
interface, etc.  I can also see the P3 being very  intriguing.  Perhaps they
are two 
versions of the same thing, maybe they  are meeting two different needs.  

I'd be interested in hearing some  comments from folks who have tried both. 
 How do they compare?  I  don't think this is a question of which one is 
"better" as "better" is going to  be defined by your operating style and 
needs.  Just tell us how they're  different and what features of each you
like or 
not and why.

To start  off

LPPan                                             P3                        
                 
Dual core  computer                           No Computer  needed           
                  
High end sound  card                          No Sound card  needed         
                                   
Big  Screen                                        Little screen


k4ia
Craig "Buck"
Fredericksburg, Virginia
K3  #101  

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