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Modulating CCTV is the most convenient, preferred method of viewing residential cameras. Our SCFM series modulators trap a single incoming RF channel without affecting other RF or their digital channels. It then inject a CCTV signal on the same analogue channel and its corresponding digital channel through the Digital Cable Receiver* and distributed throughout the premises. Easy, fast, precise the SCFM modulator is today’s choice in today’s digital world. Installation takes only a matter of minutes with true
“Plug and Play” simplicity as no external deletion filters are required and it works with digital cable. The unit is bi-directional meaning PPV and VOD is uncompromised. Clients can still view the adjacent analog channels which is perfect for applications utilizing a combination of analog and digital televisions. Our products are made with your clients in mind by using only
quality components.
* This is a function of your digital box in conjunction with your service provider. Not all digital boxes will convert an analogue channel to corresponding digital nor are all cable providers able to provide this service. Ask your provider what the dedicated
‘security camera channel’ is in your area.
- RF
- Modulator Frequency Range 54 - 552 MHz.
- CATV Throughput Frequency Range 5-1000MHz.
- Channels Available Factory ordered for a single channel: EIA CATV channels 2 to 78 and 95 to 99
- FCC Frequency Offsets All aeronautical channels offset positive with a tolerance of ±5 kHz.
- Output Level +5 dBmV
- RF High Output Level (Adjustable) +55 dBmV +43 to +55 dBmV
- Output Impedance 75 OHMS, return loss of 14 dB, nominal
- A/V Ratio Audio Carrier -20 to -12 dB referenced to video carrier, adjustable
- Frequency Stability, Visual Within ±10 kHz of assigned channel frequency; ±5 kHz on FCC offset channels.
- Aural Intercarrier Frequency 4.5 MHz, ±5 kHz.
- Spurious Outputs -60 dBc minimum, measured at -15 dB A/V ratio and with modulator output level of +55 dBmV.
- In-Channel C/N Better than 60 dB.
- Broadband Noise -95 dBc @ ±30 MHz or greater spacings. (Specified levels are referenced to the video carrier and measured in a 4 MHz bandwidth).
- VIDEO
- Input level for 87.5% Modulation 1 Vp-p ±3 dB, manual gain adjust with front panel control.
- Input Impedance 75 Ohms, return loss of 18 dB minimum
- Frequency Response Flat ±2 dB from 30 Hz to 4.2 MHz
- Video S/N 60 dB, luminance weighted
- L/C Delay Within 50 nSec of 0 nSec L/C delay (complies with FCC rules, 76.605).
- Differential Gain Less than ±5% (10 to 90% APL).
- Differential Phase Less than ±5 degrees (10 to 90% APL).
- Audio
- Input Level for 25 kHz Peak Deviation 175 mV rms minimum. Manual gain adjustment with front panel control
- Input Impedance 10K Ohms, unbalanced.
- Pre-emphasis 75 μ Sec.(flat by moving internal jumper)
- Frequency Response 40 Hz to 15 kHz, ±1.5 dB, referenced to 75 μ Sec pre-emphasis curve.
- 4.5 MHz Intercarrier Stability Within ±5 kHz, 0° C to +50° C.
- Total Harmonic Distortion 1.5% maximum.
- Hum and Noise -60 dB minimum, referenced to 25 kHz peak deviation.
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Features
- Modulator Power Requirement 115 VAC ±10%, 60Hz, 10 Watts.
- Auxiliary AC Outlet Nominal 120 VAC, 600 Watts, maximum.
- Total AC Power Input Nominal 120 VAC 60 Hz, 610 Watts, maximum
- Operating Temperature Range 0° C to +50° C, ambient.
- Size 19” W x 1.75” H x 4.0” D.
- Weight 3.6 lbs.
- Connectors Video input, Audio input, RF output, and Monitor output are all type F.
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