GE/MA-COM MASTR III Lookover (Best Repeater Ever Made?)
HS Tech Channel HS Tech Channel
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 Published On Nov 5, 2023

The HS Tech Channel Halloween Special. Taking a quick look at a GE MASTR III from 1992. This is one of four that I have, and, I may be a bit biased in saying they're really good.

This one is cut for the VHF hi-band, running from about 150 up to 174 MHz, which is far from any ham bands. Fortunately, you can mod it to run on 2 meters pretty easily if you don't have a VHF lo-band (which is actually 135 to 155 MHz) aka "group 1" machine. Of course, you can pull a Hacker and get a business band land-mobile license too. Good luck overloading the receiver, too. Got one going under a 60kW FM broadcast transmit antenna with no problems whatsoever!

Music by Jogeir Liljedahl (Celtic Waves, Martin Galway, On Impulse).

The production quality of this is astounding to me, none of my other videos are edited at all. That new intro is a clone of station WMBC-TV, channel 69, somewhere in New Jersey. A recurrent theme on this channel is having my intros be recreations of various east-coast broadcast television station legal ID banners; the others featured on this channel are various other stations. The fictitious callsign "WHST" isn't issued to me, but, it's also never actually ran on the air "for real."

Next up: MASTR III multi-receiver system (three-freq input, one-freq output repeater system), how linear power supplies work, then OpenSolaris for IBM mainframes aka System Z (yes, that exists). I'll try to get all of these done in the coming days. The first video in that list has already been filmed.

If you read all of that, hi! Hope you're doing well :3

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