No other units are available. I cannot tell you if these may be exported, as I have no experience with these regulations. Hundreds of used Sigma 500 TV Converters made by Oak Communications Inc. 70 channel capability, ch.2 output, no remotes available. Also 6 lcb lct headend units. Video and 4.5 MHz audio router.
System is a field pull and is sold as is.
Unit has been refurbed to factory specs. Available for sale OR rent. But make a price. Spectragen SG-Z4000 Character Generator with keyboard, rack mount brackets and weather package for automatic updates. Equipment manual included.