wrote:

On Jun 8, 1:27 pm, " wrote:

On Jun 8, 11:05 am, The Other Guy wrote:




On Mon, 8 Jun 2009 10:47:50 -0700 (PDT), "

wrote:

On Jun 8, 1:21 am, The Other Guy wrote:

On Mon, 8 Jun 2009 00:23:56 -0700 (PDT), "

wrote:

http://www.lazygranch.com/temp/infodia1.jpg
http://www.lazygranch.com/temp/infodia2.jpg

I got this at a flea market. The company appears to be defunct. It may
be a GPS with some other functions since it has a SMA on the back,
presumably for the external antenna.

Any information on the device would be appreciated.

Unlikely it does GPS, as there is no GPS antenna or port.

Looks like an EARLY MDC, limited things it could do,
and likely not used by anyone now.

To reply by email, lose the Ks...

There is a SMA on the back, presumably for external GPS antenna.

Link I posts says GPS antenna port is on the side,
and there was no side pic posted.

To reply by email, lose the Ks...

Maybe the SMA is for the optional wireless port.


Here are two shots of the inside. The GPS is clearly visible. The
devices has 2Mbytes of flash. Unfortunately, the entire board wasn't
populated.
http://www.lazygranch.com/temp/inside1.jpg
http://www.lazygranch.com/temp/inside2.jpg



Actually I believe it is a "correctly" populated board.
The 74HC245 in the lower left is a buss transceiver. Its position
relative to the microprocessor and to "empty" locations labeled 4M, 6M,
and 8M suggest there were multiple models using the same PCB with
different amounts of RAM. It's been 30 years since I worked at chip
level. I don't recognize the large chip adjacent to the 74HC245.