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Mode DVB C
adswill edited this page Oct 17, 2026
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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
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.
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.
Symbol rate and QAM found automatically, channels and playback.
- 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.
Getting started
Using OnAir
Tools and guides (0.2.7)
- Band survey
- Message database
- Watchlists
- TV recorder
- Time machine
- Pass scheduler
- Plugin SDK
- Headless server
- All guides
Radios
Modes by group
- TV
- Broadcast radio
- Aviation
- Maritime
- Satellite & navigation
- Two-way radio
- Cellular & rail
- Pagers
- IoT & sensors
- Weather & science
- Amateur: digital
- Amateur: voice & packet
- HF utility
- General & tools
Tutorials
- DVB-T2 TV with a HackRF
- FM radio with RDS
- Aircraft with ADS-B and the map
- Ships with AIS
- DAB+ digital radio
- Weather satellite images
- HF digital: FT8 and WSPR
- Digital voice: DMR, D-STAR, P25
- Pagers: POCSAG and FLEX
- Time stations and the clock
- Record IQ, then the Signal workbench
- The signal sample library
- Control a rig with Hamlib
- Two receivers and the multi-decoder
Reference
Help
Legal and privacy
More