[hpsdr] Card dimensions, current and future.

[Gregg Marco W6IZT]

Ben:

Check out the Tentec website, they have a line of standard enclosures and
will manufacture custom enclosures as well. Their pricing is very
reasonable.

Gregg
W6IZT

-----Original Message-----
From: hpsdr-bounces at hpsdr.org [mailto:hpsdr-bounces at hpsdr.org] On Behalf Of
Eric Ellison
Sent: Sunday, February 25, 2007 10:36 PM
To: 'Ben Hall'; 'Lyle Johnson'
Cc: hpsdr at hpsdr.org
Subject: Re: [hpsdr] Card dimensions, current and future.

***** High Performance Software Defined Radio Discussion List *****

Ben

Gosh when you go, you GO! It is your honor on the naming! We non-project
leaders always make suggestions, but you have the final call.

Here is Horsts fine manual on the Atlas board in English. See Page 16 for
the card dimensions available to Project(s) designers.

http://www.needles.de/HPSDR/ATLAS_Docu_USLetterLowRes.pdf

Horst: Could you publish pointers to all the Manuals which you have
currently created? Perhaps there is an Index on the WIKI or website.

I think for a point of reference for future discussions we should consider
the enclosure as we would a PC enclosure. The back has the L-brackets and
outside world connections as they are on the current Janus/Ozy designs. The
front is the really slick "Live Large HPSDR Control Center" 

I would also suggest folks on the Reflector publish a 'wish list' of
features they would like to see if we customize an enclosure.

I'll start:
Hinged or removable top for access to the cards, with clearance for sticking
a Pinocchio card in without removing Atlas.

Windowed, or entire front panel perhaps made from 2 sided PC board material
which can be etched or machined easily,  to add switches, logo's, led
indicators, LVDS connections, as the future project boards are added to the
inside world. This design could be a whole project in itself. But Flexible
comes to mind. 1 or 2 sided boards are pretty easily designed and etched
even by an amateur. My TNC-2 even has a blue glass background and a TAPR
Cactus, and chrome LEDs.

Be Aware! Phil Covington is going to suggest pictures, and he IS correct,
they are worth 1000 words!

I'll see if we can figure some easy way to do picts which are easy to do.
The reflector does not allow size for graphics etc. Uploads to Hamsdr get a
little difficult to index.

Onward!
Eric - AA4SW






-----Original Message-----
From: hpsdr-bounces at hpsdr.org [mailto:hpsdr-bounces at hpsdr.org] On Behalf Of
Ben Hall
Sent: Sunday, February 25, 2007 9:49 PM
To: Lyle Johnson
Cc: hpsdr at hpsdr.org
Subject: Re: [hpsdr] Card dimensions, current and future.

***** High Performance Software Defined Radio Discussion List *****

Hi Lyle,

I know what you're saying:  Max height is the spacing of 20.32mm minus 
the thickness of one board, minus some room for thru-hole connector 
pins.  If the board is 1mm and we leave 2mm for thru-hole pins, that's 
17.32, of allowed component height.

But, that leaves no room for a piece of shielding to go between the cards.

Let's say the maximum component height is 15mm.  That means I've got 
2.32mm of space in which to locate an inter-board shield.

Perhaps said inter-board shield isn't needed?  Is there a convention for 
a ground plane layer in all of the current/proposed HPSDR boards?  If 
each board has a ground plane layer without significant non-shielded 
areas, perhaps that is sufficient and the case only need worry about 
external shielding?

BTW, nice to see another Army Aviation guy here.

Lyle Johnson wrote:
> Check the connector-to-connector spacing of ATLAS.  Allow some room for 
> through-hole connector pins on the bottom of the boards...
> 
> Lyle KK7P

-- 
Thanks and 73,
Ben, KD5BYB

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