Hi, gang,
I was gifted a "BG7xxx"-like GPSDO, and I have been having difficulty finding out exactly which model it is and how to set it up.
It looks like the rest of the BG7xxx-style GPSDOs in that it's in a silver extruded enclosure with green board ends. On one end are four SMA connectors in a single row (ANT, 1PPS, 10MHz, 10MHz), and on the front are two DB9 connectors (lower left/upper right), plus status lights and a couple of reset pushbuttons.
There is no date code or model ID of any kind, and I can't figure out how to remove the unit from the case.
I fired it up with a 12-V dc analog brick (unit is rated to 24V) and connected a generic GPS antenna via the usual SMA connector.
The 1PPS light flashes at, well, presumably 1 PPS (!), and the ACT light is also flashing.
I doubt that I'm getting a signal lock, as the antenna is looking out my basement's casement window and I have no telemetry or signal data from any external control software.
The 10-MHz outputs put out a less-than-ideal looking square wave and a perfect sine wave (respectively), and the counter in my Siglint 200-MHz scope reads 10.00000 MHz on each (only out to 5 decimals), which could simply be from an internal TCXO?
Speaking of TCXO, the case gets warm, perhaps from XTAL oven inside?
I would love to know how to set this up, connect the external monitoring software, etc, as my old HP counter needs discipline!
I have searched, read, and watched endless YouTube vids, and now I know enough to only be dangerous...
Any help will be appreciated,
--Kirk, NT0Z