[time-freq] motorola oncore not locking to the 1 pps

[Geert Stams]

Hello!

I have a motorola oncore GPS receiver which I am trying to get working 
with a reflock version one.
I am sure that the reflock circuit is working. But the unit will not 
lock to the 1pps for an unknown reason. Well not completely unknown......

Checking the GPS receiver with the winoncore software shows satellites 
and nmea data on the screen. But only when switched to the NMEA 
protocol. Nothing in the motorola protocol. Checking the options / 
timing  button it shows the 1PPS being always switched "off" Problem is 
that I am not able to switch it on. It will return immediately to the 
"off" status when clicking the options / timing button.

Is this the case of a partly broken GPS receiver? Or am I doing 
something (terrible stupid) wrong?

Looking forward in hearing your opinion.

Have a nice weekend!

Kind regards,

Geert Stams (pa3csg)