HV-330TX-S
COFDM Video Transmitter
The HV-330TX-S is a COFDM video transmitter that encodes an analogue CVBS feed in H.264 and modulates it to EN 300 744 DVB-T, ARIB STD-B31 ISDB-T or ABNT NBR 15601 ISDB-Tb for delivery over coax or antenna, so any compliant receiver able to decode H.264 — set-top box, digital TV, USB DTV dongle or capture card — picks it up directly. It tunes 1900–2500 MHz in 1 kHz steps and delivers ≥300 mW of RF measured at 2250 MHz, holding MER above 30 dB with no external PA. Encryption is available at both the RF layer and the TS data layer, and GPS or avionics UART data can be multiplexed into the same transport stream.
- Direct digital conversion, 1 kHz steps
- 1900–2500 MHz
- RF output, measured at 2250 MHz
- ≥300 mW
- MER with no external PA
- >30 dB
- Aluminium enclosure, 98 × 60 × 45 mm
- 200 g
System features
- 01 Direct digital conversion to 1900–2500 MHz in 1 kHz steps
- 02 DVB-T bandwidth 1/1.5/2/2.5/3/4/5/6/7/8 MHz; ISDB-T/Tb fixed at 6 MHz
- 03 UART data mux: GPS or avionics data carried in the same transport stream, port parameters configurable
- 04 Encryption at both the RF layer and the TS data layer, against eavesdropping
- 05 Channel switching by IR remote or on-board push buttons
- 06 Up to 500 m over a single 3C2V/RG59 coax with no repeater
- 07 Differential RF output, so twisted pair (telephone or RJ-45) can replace coax
- 08 Daisy-chain bus topology: several units on different channels share one cable
- 09 Digital gain/attenuator +0 dB to −47 dB in 1 dB steps, default −15 dB
- 10 No frame drop under QEF, low transmission latency
HV-330TX-S
Specifications
Video and audio
- Video input
- CVBS — 720×480×30I (NTSC, D1), 720×576×25I (PAL, D1)
- Audio input
- Stereo line-in
- Video compression
- H.264 — 720×480×30P (NTSC, D1), 720×576×25P (PAL, D1)
- Audio compression
- AAC or MPEG
Power, mechanical and environmental
- Power
- 12 V / 1 A
- Dimensions (W×D×H)
- 98 × 60 × 45 mm
- Weight
- 200 g
- Operating temperature
- 0 °C ~ 60 °C
Modulation and channel
- TV standard
- DVB-T EN 300 744 · ISDB-T ARIB STD-B31 · ISDB-Tb ABNT NBR 15601
- Frequency range
- 1900–2500 MHz, 1 kHz step
- Bandwidth
- DVB-T 1/1.5/2/2.5/3/4/5/6/7/8 MHz; ISDB-T/Tb 6 MHz
- Constellation
- QPSK, 16QAM, 64QAM
- FFT
- 2K, 4K, 8K
- Code rate
- 1/2, 2/3, 3/4, 5/6, 7/8
- Guard interval
- 1/4, 1/8, 1/16, 1/32
- Segment
- ISDB-T/Tb 13 Seg; DVB-T n/a
RF output
- RF connector
- 50-Ω SMA
- RF output level
- ≥300 mW @ 2250 MHz
- MER
- Above 30 dB (no external PA)
- Spectrum shoulder (adjacent channel)
- Above 30 dB (no external PA)
- Phase noise
- < −92 dBc @ 10 kHz
- Carrier suppression
- Above 42 dB
- Digital gain / attenuator
- +0 dB to −47 dB, 1 dB step, default −15 dB
※ Specifications are taken from the specification tables of the 2025-11-08 manufacturer datasheet and are subject to change without notice. The resolution ceiling comes from the CVBS input, not from the modulator. No over-the-air range is listed here: real distance depends on antenna design, any external power amplifier and receiver quality — ask us for figures for your configuration.
https://hides.com.tw/en/products/hv-330tx-s/ · +886-2-2917-2417 · info@hides.com.tw