The Holland HMMS Mini Modulator is a commercial-grade, fixed-channel modulator that accepts any audio/video baseband signal and outputs it on a single assigned CATV channel. SAW filtering and PLL control keep out-of-band noise low, making it suitable for adjacent-channel head-ends where channels sit directly beside one another. Each unit ships pre-tuned to one channel and integrates with Holland's Mini-Modular Head-End System.

Features

• SAW filtered for superior adjacent-channel performance and drop-in channel expansion
• PLL controlled for carrier stability meeting FCC Docket 21006
• Fixed-channel design — pre-tuned at the factory, no field setup required
• Adjustable output level and A/V ratio for balancing against the rest of the head-end
• HRC and IRC offset options available
• Integrates with the Holland Mini-Modular Head-End System for high channel density

RF Output

• Output Channels: CATV 2–117; UHF 14–59
• Output Level: 45 dBmV minimum, 12 dB adjustable range
• A/V Carrier Ratio: -9 to -20 dB, adjustable
• Visual Carrier Stability: ±5 kHz
• Aural Carrier Offset: 4.5 MHz
• Aural Carrier Stability: ±1 kHz
• Spurious Outputs: -62 dBc
• Broadband Noise: -95 dBc

Video Input

• Input Level: 0.5 V p-p minimum
• Input Impedance: 75 ohms
• Frequency Response: ±1 dB, 50 Hz to 4.2 MHz
• S/N Ratio: 60 dB
• Hum Ratio: -60 dB
• Differential Gain: 3%
• Differential Phase: 2 degrees
• Group Delay: 75 nsec

Audio Input

• Input Level: 200 mV (25 kHz deviation)
• Input Impedance: 10K ohm
• Frequency Response: ±1 dB, 50 Hz to 15 kHz
• THD: 1%
• Pre-Emphasis: 75 usec

Power

• Requirements: 5 VDC @ 190 mA; 12 VDC @ 100 mA
• Supplied by: Holland HMPS power supply / Mini-Modular rack