As Daniel noted we plugged in the 1PPS signal from the Trimble timing unit that was installed last week into the Master timing system in the MSR.  This is on Antenna cable 1.
I then moved the Master timing antenna to the weather station mast.  I did not change the cabling as this was already on 1/4" Heliax coax cable and the unit has 3/4" connection which would be hard to make up the the 1/2" heliax and N connector.
We then Moved the NTP server antenna to the weather station mast using antenna cable 2.  We needed to adapt the N connector the TNC at the antenna head.

This completed the intrusive GPS moves. Next will be to connect the Symmetricom GPS unit in the rack to another antenna.  This will done during another maintenance period.