Radio XTZ is one of the many hobby broadcast operations found on the Internet, with one difference - It also operates transmitters on the air! These very-low-powered, short range transmissions are authorized by the Federal Communications Commission under Part 15 of the Rules; specifically


Radio XTZ originates from a custom-built PC running Windows 2000 Pro with Service Pack 4 on a 2.4 GHz Pentium 4 CPU, 1.2 GB RAM, and a 120 GB Hard Drive through a DARLA24 pro soundcard.

Pictures ARE AVAILABLE!!!

Transmitter update:  AM 540, both main and alternate main, are now in need of new output transistors,  Since the originals are no longer manufactured, I'm having to do some research into what might be suitable replacements... as a matched pair, or as close as I can get, anyway.  AM 640 is starting to show its age - the transmitter is almost 40 years old!  So, it's nearing the end-of-life; to rejuvenate it, I'll need to completely rebuild it.  I have obtained a newer LPB transmitter to replace it, but it will need a crystal (it's currently on 730 kHz) before I can use it - unless I want to switch frequencies. 

FM 100 went completely south during a thunderstorm.  That's the problem with these newer designs - the have one chip that does everything, so when they go, it's usually not worth fixing them.  FM 105 is still chugging away, though - a separate output transistor that's running well under its ratings, and the fact that the basic chip is mono - thus taking the feed from the Optimod  wasn't a major modification.  The BTE-15 is being rebuilt; so FM 105 is running a Tugicom exciter board.  It has a pretty clean output (if you give it enough juice - the on-baord regulator likes to see 18 - 20 volts!) 

Please Stand By!

Regards, Radio Tom

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