Description
CT-SFMM-5 – Overview
The Cabletronix CT-SFMMis a professional quality, channelized, heterodyne audio/video SAW filtered micro modulator. The unit provides a mono audio and video modulated RF carrier output on any single CATV channel from 2-13 & 14-88 (A-ZZZ). The CT-SFMM is ideal for placing audio and video onto any unused CATV channel. Different standard audio/video sources, such as satellite receivers, television cameras, video tape recorders, or television demodulators can be used. The CT-SFMM takes baseband audio and video and modulates these signals onto the desired output channel. The heterodyne conversion process used in the CT-SFMM employs a crystal referenced, PLL synthesized local oscillator that guarantees a rock solid, nodrift output for the life of the modulator. The CT-SFMM also meets FCC Docket 21006 aeronautical frequency offset requirements. The modulator accepts standard composite video in the range of 0.7 to 2.5 V p-p
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Features:
- Fixed channel SAW filtered micro modulator
- Available from Ch. 2-13 & 14-88 (A-ZZZ) CATV
- Die-cast chassis offers superior protection against ingress or egress
- Recessed front panel access to all level controls and indicators
- Use with Cabletronix CTPS-12 power supply and
- CTRC-12 rack chassis or with 3rd party power supplies and/or chassis depending upon configuration
- 1 year warranty with a 1 year loaner guarantee
- 3 year extended warranty available
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Specifications:
- Frequency Range: 54 – 611MHz fixed channel
- Output Level: – Min +45dBmV
- Output Level Adjust: 0 ~ -10dB
- Aural/Visual Carrier Ratio: -9 ~ -20dB
- Visual Carrier Frequency Tolerance Standard Channels: ±10kHz, FCC Aeronautical Channels ±5kHz
- Aural Carrier Frequency: +4.5MHz
- Offset from Visual Carrier Aural Carrier Accuracy, Settable ±1.5kHz
- Spurious Outputs: -60 dBc
- C/N Ratio In Channel: 60dB typical
- Broadband Noise: -90dBc
- Output Impedance: 75Ω
- Output Return Loss: 12dB
Video
- Input Level: 0.5 Vp-p to 2.0 Vp-p
- Frequency Response: ±1.0dB
- fv-0.5 MHz to fv+4.2 MHz Video SNR Weighted: 60dB typical
- Differential Gain: ±4.0%
- Differential Phase: ±2.0 °
- Input Impedance: 75Ω
Audio
- Input Impedance: 5KΩ
- Baseband Input Level: 0.5 V p-p for 25kHz peak dev.
- Preemphasis: 75 microseconds
- Flatness: 1.5dB max. 50Hz – 15kHz
Power Requirements
- Voltage: +12/+5 VDC
- Current (Max): 170/35 mA
- Power (Max): 2.25W
- Temperature Range: 32°F – 122°F (0°C – 50°C)
Connectors (Rear Panel)
- Video Input: “F” Type, Female
- Audio Input: RCA Type, Female
- RF Output: “F” type, Female
- Power: Header, 3 Pin
Controls (Front Panel)
- Video Level: Control
- Aural Carrier Level: Control
- Audio Level: Control
- RF Output Level: Control