Tad:

The only record I have been able to turn up is a slip of paper referring to
the "1290 series 1.2 GHz antenna" It was likely nomenclatured NMO-1290,
with some additional letter suffix.

And the HRO is in Sunnyvale. I never remember where the city limits are.

--
Crazy George
Remove N O and S P A M imbedded in return address