Cable Tv Rf Power Requirements; Touchscreen Consoles (P62, P80, And P82); Mye - Pvs Displays; Rf Cable Tv Wall Outlet Power Requirements - Precor Experience 700 Series Service Manual

Cable TV RF Power Requirements

There is a minimum Cable TV
touchscreen (P62, P80, and P82) consoles and PVS displays. There are also RF signal
power requirements at the facility RF cable wall outlet coax connector:

Touchscreen consoles (P62, P80, and P82)

Touchscreen console RF Input Power specification
Touchscreen
Analog video power
Digital RF power

MYE - PVS displays

MYE display RF Input Power specification
PVS
Analog video power
Digital RF power

RF cable TV wall outlet power requirements

When a RF cable TV wall outlet is used to power several equipment consoles in series,
there is a minimum RF power requirement of +35 dB at +40 dB minimum channel to noise
ratio for analog video and a +25 dB for Digital video.
An RF signal strength of +35 dB can power 17 to 19 consoles connected in series using
properly connected splitters tapped to each individual console.
1
Cable Television (aka Community Access Television) is a system of transmitting television
programming to consumers via radio frequency (RF) signals transmitted through coaxial
cables
2
1) Dynaamic Brake or 2) Decibel (dB): In electronic systems, the decibel (dB) is a of meas-
urement used to express the system power gain (+dB) or loss (-dB) in decibels (dB). dB
(power) = 10Log Pout/Pin) or, in terms of voltage, dB (power) = 20Log (Vout/Vin).
3
carrier-to-noise ratio: The ratio of power in an RF carrier to the noise power in the channel.
CNR is defined as the ratio of the received modulated carrier signal power C to the received
noise power N after the receiver filters: in terms of power: CNR = C/N, in terms of decibels
CNR (dB) = 10Log(C/N) = C (dBm) – N (dBm).
Contact Precor Customer Support at support@precor.com or 800.786.8404 with
any questions.
1
"CATV " RF signal input power level requirement for the
2
- 30 dB to +20 dB RF power with a (+40 dB
+5 dB to +10 dB RF power with a +40 dB minimum channel to
noise ratio (*at each console)
-5 dB to 0 dB (*at each console)
Cable TV RF Power Requirements
RF Input Power
Noise ratio)
-5 dB to 0 dB
RF Input Power
2 General Information
3
C/N (Channel to
Page 21