The 70 cm rule is the silliest. The limit for digital data is 100 kHz, but you can legally transmit 6 MHz wide analog television. Because wide bandwidth video i

The 70 cm rule is the silliest. The limit for digital data is 100 kHz, but you can legally transmit 6 MHz wide analog television. Because wide bandwidth video is allowed, digital video modes like DVB-S, DVB-T and ATSC are also allowed. To get around the 100 kHz restriction for data, some folks are running links with 95% data and a low rate video sub-stream.