[TenTec] LP-Pan 2 on Orion 2

[Paul Christensen]

Barry,

Somewhat similar issues with the K3 when using the SDR-IQ.  Other SDRs here can see much more detail at the baseline level when compared with the K3/SDR-IQ -- even after using a Clifton Labs buffer amp and the K3 JFET mod.  The new K3s may be better; I saw a bullet-point in Elecraft's literature that mentioned an improvement over the K3 IF output design.  

Like PowerSDR, Expert Electronics' ExpertSDR2 software is significantly more advanced at this time than Flex's SSDR.  It's also very stable.  I've never had a software release crash on me.   CW with the SunSDR2 is very good and reasonably fast, but uses a mechanical relay for T/R switching.  At the 15-20W power level, there's no reason NOT to use PIN diode switching if ample reverse bias voltage protection is used on Rx diodes.  Like the ANAN series, adaptive pre-distortion is part of the hardware design, but not yet implemented in the controlling software.  

Paul, W9AC

-----Original Message-----
From: TenTec [mailto:tentec-bounces at contesting.com] On Behalf Of Barry N1EU
Sent: Thursday, December 10, 2015 7:25 AM
To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
Subject: Re: [TenTec] LP-Pan 2 on Orion 2

I found the RX366 IF output resulted in a poor panadapter trace and posted that to this reflector and tentecwiki.org - use the VE7TK mod with Clifton Labs buffer amp.  I suspect the Eagle IF output is no better than the RX366 and also really needs the mod, since it's essentially the same receiver.

I just plugged it into my motherboard soundcard, a RealTek HD or something like that.  It works fine, as do the soundcards recommended on telepostinc.com

Barry N1EU

On Wed, Dec 9, 2015 at 11:10 PM, Kim Elmore <cw_de_n5op at sbcglobal.net>
wrote:

> Somewhere in the archives, I've read that the way the RX-366 IF output 
> is set up creates some undesirable dips and peaks in it.
>
> Kim N5OP
>
>
> On 12/9/2015 9:53 PM, terry foskey via TenTec wrote:
>
>>   Barry,Have you or anyone else here ran an LP-Pan on an Orion 366 
>> receiver IF out?  What sound card did you use, EMU or something else?
>> N5TF,Terry
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>
> --
>
> Kim Elmore, Ph.D. (Adj. Assoc. Prof., OU School of Meteorology, CCM, 
> PP SEL/MEL/Glider, N5OP, 2nd Class Radiotelegraph, GROL)
>
> /"In theory there is no difference between theory and practice. But, 
> in practice, there is." //– Attributed to many people; it’s so true 
> that it doesn’t matter who said it./
>
>
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