[Elecraft] P3IQ

[Don Wilhelm]

Dave,

My opinion is that there is no need for the SDRPlay, and you can have 
better integration with the K3/P3.

73,
Don W3FPR

On 7/28/2018 10:11 AM, Dave Fugleberg wrote:
> Aha, NOW the proposed add on module makes sense to me... assuming one 
> already has a P3 (as I do), adding this will make the P3 appear as a 
> USB device to SDR software on a PC (much like a SDRPlay or RTL SDR 
> dongle. Correct?
>
> What will be the advantages of this versus connecting a SDRPlay, etc 
> to the P3 IF Out?
> On Sat, Jul 28, 2018 at 8:31 AM Wayne Burdick <n6kr at elecraft.com 
> <mailto:n6kr at elecraft.com>> wrote:
>
>     Nice 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
>
>     Don Wilhelm 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 is that the K3 I/Q signals exist, but they are
>     only in the digital world.  The P3 does extract them, but for
>     purposes of the P3, they remain in the digital world.
>     > Getting those signals into the analog world will take some work
>     and design effort.  It is more complex than a digital to analog
>     converter.
>
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