Larry,
On EBAY, the Rockwell Jupiter series modules have been consistently 
available for quite some time (many months).  I searched today and found 
two sellers selling them for $35 (Buy-It-Now) which has generally been 
the going price.   The first:
http://cgi.ebay.com/Rockwell-Jupiter-GPS-OEM-Receiver-Module-APRS-AVL_W0QQitemZ5797368523QQcategoryZ4668QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
is a bit older model, while:
http://cgi.ebay.com/Rockwell-Jupiter-GPS-Receiver-12-CH-Board-NEW-w-BONUS_W0QQitemZ5797806498QQcategoryZ4668QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
is one generation later.  But to the best of my knowledge, all Jupiter 
series boards have both a 1 PPS and 10 KHz output.  The second seller 
above is offering a *TU30-D140-221* *with antenna*.and its spec sheet 
definitely shows both timing outputs.  The 10 KHz is great for locking 
local frequency standards to.  Now there is a newer version, the 
Jupiter-T, that is specifically designed for timing use.  I bought one 
of those for about $90 new from a company in Florida.

Anyway the comment is that there seems to be a fairly consistent supply 
of these older Jupiter series of boards that are available for about 
$35.  The second deal is really great because the antenna is included, 
however I don't think he has a big supply, although you could approach 
him and find out.

Regards,
Charles Patton

Larry Cochrane wrote:

> Hi Everyone,
>
>>>
>>>    Adding GPS for time somewhere in
>>>     the system would cost around $50 bucks. 
>>
>>
>>     For just the receiver. Then you have to buy the aerial and also 
>> an interface board.
>>     The cheapest that I know about is $140 from psn.
>
>
> I am now selling a Garmin GPS 18 OEM timing sensor that will work with 
> my A/D board, the cost is under $100.00 USD. See 
> http://www.seismicnet.com/gps/gps18.html for more information. I do 
> not know of a GPS receiver under $50.00 that has the 1 PPS signal 
> needed for accurate timing.
>
> Regards,
> Larry Cochrane
> Redwood City, PSN
>
>
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