481 THz tests

I have resurrected my optical gear. It had stood largely unused for 10 years.

As yet, I have not got Spectran working with the optical RX so I can only do optical tests with continuous carrier or CW and not QRSS. Tests so far are a reflected (off a wall) signal on CW. Good copy over a reflected path of just 100m. At least the optical gear works again!

UPDATE 2020z:  Expections were well exceeded. I set up my 481 THz beacon firing out of our lounge double-glazed window at a wall of a house at the very far end of our close. I walked with my RX to the other end. So the path distance was about 0.25km with one reflection. Signals were S9+ even by ear. The gear really works well. I must get Spectran working and try some NLOS tests. with G4HJW. I suspect we will have greater success with cloudbounce. My main issues are exhaustion and giddiness.

See https://sites.google.com/view/g3xbm4/home/optical-nanowaves/over-the-horizon .