[Elecraft] P3IQ

Sat Jan 26 05:57:06 EST 2019

Hello Wayne,

are you still planning "to get it out of the box"?

tnx

Volker

DL4ZBG

-----Original-Nachricht-----
Betreff: Re: [Elecraft] P3IQ
Datum: 2018-07-28T18:45:02+0200
Von: "Wayne Burdick" <n6kr at elecraft.com>
An: "David Gilbert" <xdavid at cis-broadband.com>

To use the P3’s I/Q signals with software applications, you have to format the data like a USB sound card, a standard that is widely used and requires no special drivers. A significant amount of firmware is required at the P3 end, but we’re definitely looking at this.

In answer to an earlier question: The P3 uses a very high-performance A-to-D converter, so the I/Q stream will have excellent dynamic characteristics (once we get it out of the box :) 

Wayne
N6KR

> On Jul 28, 2018, at 9:31 AM, David Gilbert <xdavid at cis-broadband.com> wrote:
> 
> 
> I never understood why the P3 didn't have I/Q outputs in the first place, and I remember pleading for them well before the P3 was finalized.  It never made sense to me to have to have to add additional hardware to make use of other software that used I/Q outputs when the P3 clearly generated them internally.
> 
> Dave   AB7E
> 
> 
> 
> On 7/28/2018 6:30 AM, Wayne Burdick wrote:
>>> The KX3 has I/Q signals (and I/Q outputs) because the I/Q signals are at baseband (audio frequency spectrum).  ....
>>  
>>> The current fact iNice explanation, Don.
>>> 
>>> However, when we do an I/Q add-on for the P3, it will be fully digital (like a USB sound card), not analog (like the KX3’s RX I/Q outputs).
>>> 
>>> These digital signals already exist in the P3; we just need to repackage them for use with a computer.
>>> 
>>> Wayne
>>> N6KR

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