[time-nuts] Lucent KS-24361, aka HP/Symmetricom Z3812A

[Thomas Petig]

On Tue, Sep 17, 2019 at 02:40:46PM -0500, Gregory Beat via time-nuts wrote:
> [...]
> Dan Watson explored modifications (August 2015) for the REF-0 boxes to operate as a stand-alone GPSDO.  Including an updated GPS receiver to emulate the Oncore UT+ timing receiver.
> https://syncchannel.blogspot.com/2015/08/standalone-operation-of-lucent-ks-24361.html
>
> Thomas Petig (Germany) built upon Dan’s work and explored the SCPI commands available on this KS-24361.
> http://www.petig.eu/ref0/

Sweden actually. Also build some script to simulate the Oncore GPS with an FTDI USB cable, PPS is send over CTS. This actually worked, the unit was happy.
https://github.com/thpe/oncore

Aim was to build PCB, with PPS input to accept an external PPS source with optional sawtooth correction/time data converted in case the PPS comes from a ublox:
http://petig.eu/schem/lucent-input.pdf
I produced the first batch, but there some hardware bugs and I didn't continued further due to lack of time.

> [...]

/Thomas, SA6CID