[hpsdr] RF Sampler

[k3it]

Have you guys heard of the "virtual" group buy PCB  site: OSH Park
http://oshpark.com/ ?    they take care of combining the orders into a
large panel and then depanelling and shipping to individuals.  Thier volume
of orders is so great that they send a new panel to the factory daily.

  Shipping is included in one price @ $5 per sq. inch  for 3 boards.   Once
you upload gerber project it can be shared publicly for anyone who wants to
re-order.   OSHpark might be a low overhead way to share Helmut's board.

Vasiliy


On Thu, Feb 13, 2014 at 3:37 AM, Helmut, DC6NY <dc6ny at gmx.de> wrote:

> ***** High Performance Software Defined Radio Discussion List *****
>
>
> Dan and all,
>
>
>
> Steve, G1YLB, organized a PCB and even kit group buy, but I guess he
> closed the list meanwhile ( stevej.doyle at btinternet.com )
>
> If anybody in the US will do the same, please go ahead, but I'd rework
>  PCB or rather the Gerber-file. As homebrewer I only used a printed film
> mask to build the PCB and wires instead of galvanized through holes, hi.
>
>
>
> Concerning the location of the sampler, I'd suggest a place beyond all
> connections, relays, switching gear directly in the 50 ohms feedline to the
> antenna or ATU. Please bear in mind that even this stuff can generate
> passive intermodulation (PIM)and should be included in the correction path.
>
>
>
> 73, Helmut, DC6NY
>
>
>
>
>
>
>
> *Von:* Dan Mitchell [mailto:danmitchell at embarqmail.com]
> *Gesendet:* Mittwoch, 12. Februar 2014 21:09
> *An:* dc6ny at gmx.de
> *Cc:* george byrkit; Jeremy McDermond
> *Betreff:* RF Sampler
>
>
>
> Helmut;
>
>
>
> Your RF Sampler for Pre-Distortion Feedback looks like a perfect solution
> for the new PureSignal feature of PowerSDR.
>
>
>
> Many of us lack the resources to make the board, however.
>
>
>
> I was wondering if anyone has approached TAPR to provide this accessory as
> a kit? I know I would buy one.
>
>
>
> 73,
>
> Dan, W0IQ
>
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