[hpsdr] Bare Boards

[John D'Ausilio]

I've not been able to get access to hamsdr.com for some reason .. can
someone give me a quick summary of options and prices?

de w1rt/john

On 2/16/07, Bill Tracey <bill at ewjt.com> wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> I'll admit to being surprised at the amount of interest in bare boards,
> turns out to be running a bit higher than I'd expected it would be.
>
> I'd be interested to hear from the folks looking at the bare board option
> their reason for going that route.  Is it a cost issue?  Or really want to
> know the technology and figure building the board helps in getting to know
> how it works?   The ship building feeling one gets putting something like
> this together?
>
> I'll admit I like building these things.  Having built two sets of these
> and done major repair work (FPGA replacement) on one, I'll happily go the
> built and tested route on this round of boards.    As others have pointed
> out, these are not beginner SMT boards.   The first set I did,  I did w/o a
> microscope using a fine tipped iron.  Doable but right at the margin of my
> skills w/o a microscope.   The 2nd set I did with a microscope and a mix of
> fine tipped iron and hot air and paste technique - this one was much easier
> with the microscope - I'll never consider doing 100+ pin 0.5mm pitch parts
> w/o a microscope ever again.     The other parts on the board that are
> somewhat troublesome to hand assemble are some of the resistor packs which
> are a leadless package (Personally, I do hope there's a special place in
> hell for the geniuses that came up with leadless packages)
>
> I don't mean to discourage anyone from going the bare board route if that
> is what they want to do.  Just interested in folks reasons for building
> their own and want to make sure folks are aware how small/tight pitched
> some of the parts are.     Actually I'd hope to recruit some of the folks
> with the skills and tools to build this kind stuff by hand to get involved
> in some of the future projects.
>
> Cheers,
>
> Bill  (kd5tfd)
>
>
>
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