Products found on this page are useful for Amateur Television and other uses.
ATV Research has spectrum efficient VSB and digital SD and HD ATV equipment that fits a six megahertz wide channel, to produce CATV quality ATV. Upgrade your ATV station with our recommended equipment below.
Digital QAM-64 ATV:
Drake DSE-24 (full feature QAM-64 modulator with composite, component, VGA and HDMI inputs for both SD 480i and full 720P or 1080i HD ATV on 70cm and 33 cm bands.
Pico PQM (ASI input QAM-64 modulator for use in an all digital ATV repeater or add MEC MPEG encoder for a DATV exciter)
Demodulator: Holland HDD (analog output, great for adding a digital input to your existing analog ATV repeater)
Pico MPD-ASI (ASI digital output for use in full digital ATV repeater)
Accessories: MPC-12 chassis and power supply for the PQM modulator, MPD-ASI demodulator, and MEC MPEG encoder to build an all digital ATV repeater or link system.
Pico PCM55SAW SAW filtered VSB modulated with PLL frequency control for use on 70cm band ATV or add upconverter for higher bands.
Pico MMA 860 modulator, MPCM45, MPCMA, mini modulators adds portable and mobile ATV by adding regulated 5 volt source or use with Pico's rack chassis with power supply.
Holland HMMA, Mini modulator (same use as the Pico units)
Pico D860, PFAP-90CS mini demodulators can be used with the mini Pico modulators in the same Pico chassis for an ATV repeater or link.
Holland HDM-1 1RU rack size demodulator for 70cm band or add a down converter for higher bands.
Common ATV frequencies that fall on CATV channels:
421.25 MHz = CH-57, used for 70cm repeater output (423 MHz center channel QAM-64 digital)
427.25 MHz = CH-58, used for 70cm simplex and repeater output (429 MHz center channel QAM-64 digital, suggest running in HRC mode to shift center channel to 428 MHz to keep 432 MHz weak signal window clear)
434 MHz requires a change in reference crystal frequency to move CH-59, 433.25 MHz, simplex and repeater input, (435 MHz center channel QAM-64, suggest running in IRC mode to shift bottom of channel away from 432 MHz)
439.25 MHz= CH-60, simplex and repeater input. (441 MHz center channel QAM-64 digital)
913.25= CH-144 (915 MHz center channel QAM-64 digital)
919.25= CH-145 (921 MHz center channel QAM-64 digital)