Just wondering if anyone knows what these are,A friend of mine bought these at an auction thinking I'd be interested in them,I really don't know what they are or what their capable of doing.Maybe some of you ham guys know what they are.
Hey David thanks you found alot more information than I was able toThe LC-900 Controller for an aircraft Microwave Landing System. Never really got put into use since GPS came along about the same time.
Microwave landing system - Wikipedia, the free encyclopedia
I am willing to bet that the TTS400C is for testing the modem. Appears to have the ability to generate selected messages and then wait for a response.
Brief description here:
6625-01-254-3506 Test Set, Telecommunication System
I'm gonna take a flyer and say the modem was likely hooked to an HF radio to communicate with Aircraft, especially with the inclusion of the obvious MLS control head from an aircraft in the auction items. Although with the Carleton sticker on it I suppose it is less likely that is what they were doing with it, but I guess you never know. Maybe some communications with the ISS or something.
What the ham guys call packet radio?