SIGNAL DVB-T modulator MOD/SIG-420

The SIGNAL DVB-T Modulator MOD/SIG-420 is a professional-grade HDMI to RF converter designed for distributing digital TV signals over coaxial cable networks. It accepts HDMI input and outputs a DVB-T (COFDM) modulated RF signal, making it ideal for hotels, hospitals, schools, and other commercial installations requiring local channel distribution.

Advantages

High-quality H.264 video encoding ensures efficient bandwidth usage while maintaining crisp 1080p resolution. The modulator supports both VHF and UHF frequency ranges with adjustable output level, allowing flexible integration into existing antenna systems. Easy configuration via LCD display and buttons simplifies setup without additional software.

Suitable for

• Distributing HDMI sources (e.g., media players, cameras) over coaxial TV networks
• Adding local channels to hotel or hospital TV systems
• Digital signage and information displays in public venues
• Replacing analog modulators in legacy RF distribution systems

Key specifications

• Input: 1x HDMI
• Output: 1x RF (F-type connector)
• Output Standard: DVB-T (COFDM)
• Video Encoding: H.264 (MPEG-4 AVC)
• Audio Encoding: MPEG-1 Layer II, AAC
• Max Resolution: 1080p (1920x1080@60p)
• RF Frequency: 174-230 MHz (VHF), 470-862 MHz (UHF)
• Channel Bandwidth: 7 MHz, 8 MHz
• Modulation: QPSK, 16QAM, 64QAM
• Code Rate: 1/2, 2/3, 3/4, 5/6, 7/8
• Guard Interval: 1/4, 1/8, 1/16, 1/32
• MER: >35 dB
• RF Output Level: 70-100 dBµV (adjustable)
• FFT Mode: 2K, 8K
• LCN Support: Yes
• NIT Support: Yes
• Configuration: LCD display and buttons
• Power Supply: DC 12V / 1.5A (external adapter)

Recommendations

For optimal performance, use high-quality RG6 coaxial cable and ensure proper impedance matching. The modulator is compatible with standard DVB-T receivers and TV sets with digital tuners. Always verify local frequency regulations before installation.