Re: Very Late Start - Type 2

K5ESS
 

Well as a matter of fact you can get them on ebay cheap(relatively). Item 183406561654. But you better hurry, there's only one left ;-)
Mike
K5ESS

-----Original Message-----
From: PHSNA@groups.io [mailto:PHSNA@groups.io] On Behalf Of wb6ogd
Sent: Wednesday, September 26, 2018 5:47 PM
To: PHSNA@groups.io
Subject: Re: [PHSNA] Very Late Start - Type 2

Uh Clifford,
The eval board for AD9959 is $430 at Digikey.. Can you get those on
ebay for cheap?

Si5351 board is about $7.

You might as well go buy a used HP or something, no?
I think I have about $25 in my PHSNA total out the door...

73,
Gary
WB6OGD


On 9/26/2018 3:32 PM, Clifford Heath wrote:
On 27 Sep 2018, at 12:09 am, wb6ogd <garywinblad@...> wrote:
True, the SI5351 is not best...
BUT, at higher freqs it's output becomes more sine wave. And at times, I thought I might want a higher freq
generator.
If you want higher frequencies, you should consider adapting PHSNA
to use the AD9959. You get four channels with a 500MHz core, so can
generate up to 200MHz sine waves. I've published driver code for it:
<https://github.com/cjheath/AD9959>

I'm using this in a new full multi-port VNA design which requires two
coherent channels (digitally phase locked, but sweeping on different
frequencies). I'll let you know how that progresses.

Clifford Heath.


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