Ultra-cheap SDR Digital Television Transmission: ISDB-T with an osmo-fl2k and an RTL-SDR
summary
An open-source GNU Radio ISDB-T transmitter is implemented, tested over-the-air with USRP B200 and an osmo-fl2k (USB3-to-VGA, ~$15) as the RF source, feeding an amplifier and simple antenna; commercial TVs decode the full 6 MHz stream while an RTL‑SDR decodes 1‑seg (<500 kHz) reliably. The project reproduces ISDB‑T layers/segments, supports configurable mode/time interleaver/coding, documents harmonic and null issues from the FL2K pixel DAC, and publishes code at https://github.com/git-artes/gr-isdbt.
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chapters (5)
- 0:00Start
- 1:25Background
- 7:21ISDB-T, introduction
- 12:37Our Implementation
- 23:10Conclusions and further developments
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