Specifications

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Linear Audio / Video / Data Solutions
74 Reference Section
System Design
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locations of splitters, taps, combiners,
and TV sets. Where cable runs exceed
200’ (60 m), add a tilt compensator
whenever an amplifier stage follows.
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enter all system losses using the chart
below.
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ensure that the signal level never falls
below 0 dBmV (60 dBμV) at any
point in the system and that TVs get
at least 5 dBmV (65 dBμV) of signal.
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ensure that the signal level at the TVs
does not exceed 15 dBmV (75 dBμV).
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help call Linear Technical Support
at 800-421-1587.
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Component Description Model Gain Loss Your System
Coaxial Cable 75Ω impedance RG59 7.6 dB/100’ (24.9B/100m)
RG6 6.0 dB/100’ (19.7 dB/100 m)
RG11 4.0 dB/100’ (13.1 dB/100 m)
Splitters and Combiners 2512 3.5 dB
2532 4.0 dB
2514 8.0 dB
2534 9.0 dB
Tap 2509 1.0 dB through 9.0 dB tap
Tilt Compensator TC-200A 4.0 dB
Attenuator 2503 3.0 dB
2506 6.0 dB
RF Amplifier DA-500 18.0 dB
Total Gain
Total Loss
EXAMPLE
68 TV SCHOOL SYSTEM
The head end is located in the media center. A CATV feed is combined with the output of two modulators (typically connected to an
assortment of VCRs, satellite receivers, and DVD players). There are four TVs located in the media center and up to 64 TVs located in
distant classrooms (up to 650’ from the media center). The small numbers in red indicate the signal level in dBmV (add 60 dBmV) at
various locations in the system. For the gains and losses associated with the various RF components, see the chart below.