[hpsdr] Type of kits forthcoming?...

Thompson_Peter at emc.com Thompson_Peter at emc.com
Fri Jul 21 07:27:34 PDT 2006


Based on the pictures I've seen of Janus & Ozy, the only components that
concern me are the chips with the multiple tiny leads such as the ADC and
CPLD items.  So, for me, option 'b' would be good.  

Based on my recently acquired experience with Atlas, I wouldn't mind doing
the other SMT components and the thru-hole items.  

I'm open to persuasion that the above mentioned chips are in fact manageable
with the appropriate equipment and technique.  For example, I'd buy the hot
air gun and solder paste, if this were the technique of choice for these
components.

If these issues are outweighed by packaging and testing issues, then that's
fine.

Pete


> -----Original Message-----
> From: hpsdr-bounces at hpsdr.org 
> [mailto:hpsdr-bounces at hpsdr.org] On Behalf Of Lyle Johnson
> Sent: Friday, July 21, 2006 10:05 AM
> To: Thompson, Peter
> Cc: hpsdr at hpsdr.org
> Subject: Re: [hpsdr] Type of kits forthcoming?...
> 
> ***** High Performance Software Defined Radio Discussion List *****
> 
> > Was a decision ever reached on how the kits (e.g. Janus & 
> Ozy) will be 
> > offered in terms of:
> > 
> > a) board and components (full kit) or
> > b) board and chips mounted + remaining components (partial kit) or
> > c) all components pre mounted (assembled board)
> 
> Still working on it, but we need some information from all of 
> you who purchased ATLAS boards.
> 
> a) easy to buy, but hard to kit.  Some of the parts have a 
> lot of leads which bend easily, so repackaging for kitting is 
> labor intensive (costly).
> 
> b) By remaining components do you mean the through-hole 
> parts, such as connectors?  This is fairly easy to package, 
> and minimizes the assembly labor.  Unless a special test 
> fixture is created (unlikely), it means the partially 
> assembled boards will not have been tested.
> 
> Or do you mean that the buyer also attaches the SMT resistors 
> and capacitors?  Resistor networks?
> 
> c) The most expensive option, due to the different 
> manufacturing process required for attaching the through-hole 
> parts.  I can;t tel youoffhand how much more this would add, 
> but it is probably between $10 and 415 to the purchase price.
> 
> This also makes it easiest to test, if a simple test regime 
> were created (possible, even practical, not sure how likely).
> 
> Given the three options above, which type would you prefer to 
> see, and why?
> 
> 73,
> 
> Lyle KK7P
> 
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