Very nice equipment, Indeed...
For test FM and SSB ham radio receivers for SINAD, for example...
For drive mixer to make experiments..
To make sweeps..
The external modulation input is on the front panel.. nice touch...
You would need it calibrated.. but if you not paid for a calibrated generator and only use it for repair ham radio gear, that is not as important...
I buy one refurbished Stabilock 4032 calibrated, They send me all paper with all measures on different levels and frequencies that are stated in service manual and They test if these measures are into the allowed tolerance level. Happily my equipment pass all the test and they send it to me along with the report...
I can use these references in the report to calibrate (with some tolerances, of course) other of my test gear that I buy second hand and uncalibrated.. This is nice, that I can rely on some test gear in my bench...
If you have a good friend with calibrated gear, you can send the 18Kg gear to him and take a report of calibrated measures.. or You can send it, at your cost, to a calibration service to get this information.
Manuel