In traditional CCTV construction methods, each camera needs a single independent cable. When additional cameras are added this usually requires re-cabling of the system, however with the PS-078 A/V Modulator / Demodulator all you need is to add these to your current system to increase the camera capacity from one camera to potentially 25 down the same single coaxial cable.

The Modulator is a DSB ( Double-Sideband ) modulator to modulate any analogue A/V signal to RF ( Radio Frequency ) signal. The same concept as TV channels, one new RF signal is one new TV channel.? You can combine CCTV camera, Satellite Receiver, DVD Player or any A/V device into your TV/CCTV system.

Model : Modulator
Display Mode: Digital LED Channel Display
Video Signal: NTSC, PAL B/G, PAL I and PAL D/K
Video Input: 1.0Vp-p.for87.5% modulation
Audio Input: Pre-emphasis 75us
Channel Frequency Range Channel adjustable:
A- CH-2 ~ CH-6 (55.25 ~ 83.25MHZ) B- CH-A ~ CH-13 (121.25 ~ 211.25MHZ) C- CH-23 ~ CH-52 (217.25 ~ 391.25MHZ) D- CH-53 ~ CH-87 (397.25 ~ 601.25MHZ)
RF Output Strength: 110 +/- 5 dbuv
Connector: One audio input, one video input, one -20 db test point, one RF out, all standard "F" female connector, one RS232 for software adjust
Power Requirements: DC 12 V / 100 mA
Power Consumption: 1.5 Watts
Dimensions: 86(L) x 118(W) x 32(H)mm

This is a professional designed Demodulator to work with the modulator. It will demodulate any RF signal back to A/V signal within 45~860MHz.