[time-nuts] 20210423: Introduction and Request for Spirent GSS4200 User Manual / Help

[Andrew Kalman]

Hello.

This is my first post. I'm an EE who also dabbles in ME and CS. My first
real job was at SRS (Stanford Research Systems), where I designed the
look-and-feel and functionality of the SR560 (still in production, wow!),
albeit with John Willison's help on the cascode front-end aiding this
freshly minted EE. Since then I moved to the aerospace and IoT industries.

I currently use, maintain and upgrade instruments from HP/Agilent, XL
Microwave (I love their frequency counters), SRS, Adret, Spectracom and
others, plus some mid-70's audio as well.

I am ** desperate ** for a User Manual for the Spirent GSS4200 GNSS
simulator (e.g.,
https://www.testequipmentconnection.com/54837/Spirent_GSS4200.php). That
model is somewhat unique, in that it's one of only a very few that Spirent
released that can/will run without an external "control" program. Using the
manual from the GSS6100, I'm able to do a couple of things with the GSS4200
over GPIB, but for the life of me I cannot figure out how to get the
GSS4200 into a mode other than single-channel (it supports 6 channels, and
has a single-channel mode). I suspect there is a command to do this, but I
have not been able to figure it out.

I have spent 8+ hours searching sites and archives, to no avail. Spirent
has done a rather impressive job of locking down their support software and
docs behind a paywall (and I wonder if they even have the docs for the
GSS4200 any more). Any help is appreciated, I'm happy to give back if
someone wants to snag another GSS4200 (around $700 used) and use it as a
simulator.

Thanks,
_______________________________________
Andrew E. Kalman, Ph.D.            aek at pumpkininc.com

President
Pumpkin, Inc.
750 Naples Street
San Francisco, CA 94112  USA
tel: (415) 584-6360
fax: (415) 585-7948
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