[hpsdr] Bare Board people

[S. Cash Olsen]

----- Original Message ----- 
From: "Christopher T. Day" <CTDay at LBL.Gov>
To: "Jason Hitesman" <jason at hitesman.com>; <hpsdr at hpsdr.org>
Sent: Thursday, March 01, 2007 11:18 PM
Subject: Re: [hpsdr] Bare Board people


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For those of you considering or who have already ordered bare boards you 
should be considering how you are going to solder them. I'd like to put in a 
plug for my method of Hot Air Reflow soldering and solder paste. You'll find 
that this is a simple and inexpensive method of assembling SMT boards of 
this type and density. www.zianet.com/erg/SMT_Soldering.html and 
www.zianet.com/erg/ShopSolderPaste.html

Also, Cecil Bayona KD5NWA has an excellent page that shows some related 
methods http://www.hpsdr.com/Public/Projects/SMT/SMT.html of SMT assembly.


In my tutorial on this soldering method I suggest a beverage warmer, which 
is to small for these boards so I'll have to do some retail research to come 
up with a suitable substitute, I'm thinking that a coffee maker warming 
plate might do the trick but that needs to be tried.

I may also be able to assist in kitting of some of the descrete passive 
parts and some of the semiconductor components. I'll keep you informed when 
I know something definite.

Cash Olsen KD5SSJ / AAR6AP/T

Kits to build Scotty's Spectrum Analyzer http://www.zianet.com/erg
Scotty's Spectrum Analyzer website http://www.cpu-net.com/host/wsprowls
Sam Wetterlin's website http://www.wetterlin.org/sam/
Yahoo Builders Group http://groups.yahoo.com/group/spectrumanalyzer/


-----Original Message-----
From: Jason Hitesman [mailto:jason at hitesman.com]
Sent: Thursday, March 01, 2007 10:07 PM
To: hpsdr at hpsdr.org
Subject: Re: [hpsdr] Bare Board people

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Since I already heard from a few people who are interested I'm
cautiously optimistic that there may be enough interest in this.

So in case anyone wants to play with what I put together I whipped up
a quick tgz of the CSV files and the PHP scripts:

http://yumaduners.com/jth_upload/hpsdr/janus.tgz

The scripts are ugly, mostly uncommented, and fairly untested...I just
tossed them together to see how viable this would be and wasn't really
worried about writing good code ;)

The CSV files are probably a little confusing but if you look in the
janus_bom_large.html file there's some comments near the top that
should help decipher what col is what in them.

So if anyone wanted to give a try at slipping in some alternate
parts/quantities, attempting the Ozy bom, or starting to put together
a version for mouser hopefully this will help.
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