[tacgps] Re: tacgps Digest, Vol 25, Issue 1

[Brooke Clarke]

Hi Eduardo:

You might ask this on the Time Nuts mailing list.
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

Have Fun,

Brooke Clarke

w/Java http://www.PRC68.com
w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml
http://www.precisionclock.com


>Date: Tue, 13 Feb 2007 16:55:43 +0100 (CET)
>From: edu at kender.es
>Subject: Re: [tacgps] Low cost timing GPS for Smartbits
>To: "Robert Smith" <bobsmith5 at verizon.net>,	"TAPR GPS and Timekeeping
>	Mailing List" <tacgps at lists.tapr.org>
>Message-ID: <2277.158.227.67.71.1171382143.squirrel at ns.kender.com>
>Content-Type: text/plain;charset=utf-8
>
>Well
>
>I meant Spirent Smartbits Hardware...
>(http://www.spirentcom.com/documents/1374.pdf) They are network traffic
>generator. They have ports that can send and receive traffic and you can
>develop applications to program it. If you use only a chasis, you can
>measure propagation delays. If you use two chasis (transmiting from one to
>a wireless system and receiving on the other chasis) and you don't have
>Internet access you can't get a good clock reference. An option is to use
>GPS systems. Spirent does offer an solution, but the information on the is
>so loose it's difficult to know how difficult is to adapt an external
>source.
>
>We (at Univiversity research group)  would like to get 2 GPS timing
>systems at a faction of the cost of "official Smartbit solution" They use
>58503 (HP?) or NanoSync hardware but I don't get information about the
>interface levels (ttl or RS-232).
>
>Regards
>
>Eduardo/EA2BAJ
>
>
>  
>