Skip to content

Mode DVB C

adswill edited this page Oct 17, 2026 · 2 revisions

DVB-C digital cable television, needs the cable network as the input (not an antenna).

Group TV
Default frequency 346 MHz
Default sample rate 10 Msps
In the mode list Cable

Step-by-step: Tutorial-DVB-C

What DVB-C is

DVB-C is the digital cable television standard (J.83 annex A and C, 16 to 256-QAM). It needs a feed from a cable network, not an antenna.

Frequencies and settings

Cable TV, EN 300 429 / J.83 annex A and C, 16 to 256-QAM (needs a cable feed).

Setting Value
Start frequency 346 MHz
Tuning range of the mode table 47 to 1002 MHz
Sample rate asked 10 Msps
Lowest working rate 7 Msps
Channel width 8 MHz

OnAir takes any frequency you type; the numbers above are the mode's starting point and the range its table describes. In the app the shortcut label is Cable.

What OnAir shows

Symbol rate and QAM found automatically, channels and playback.

Tips and caveats

  • Checked with generated signals and impairments; recordings of real signals welcome.
  • Which radio: No: wide TV channels need a radio that samples faster than an RTL-SDR, which reaches about 2.4 Msps. See Supported radios.
  • Try it without a radio: most modes include a built-in synthetic test signal, so you can open the screen and try the controls first.
  • Receiving and the law: Receiving free-to-air broadcasts is legal in most countries. OnAir cannot decode encrypted or scrambled services, and does not try to. See Legal.

Related pages

Clone this wiki locally