User's Guide

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10
Chapter 3: Planning The Installation
• Inside antenna gain (IAG): This is the signal boost provided by an interior antenna and is always a positive number
with SureCall antennas.
SC-222W omni dome +3
IAG Gain
• Cable loss (CL): This is the signal loss caused by the cable and is always a negative number.
20 ft. SC-400 -1 dB / -2 dB
30 ft. SC-400 -2 dB / -4 dB
50 ft. SC-400 -3 dB / -6 dB
100 ft. SC-400 -4 dB / -8 dB
CL Loss
• Splitter loss (SL): This is the signal loss caused by a splitter (used if you are installing multiple antennas).
2-way -3
3-way -5
4-way -6
SL Loss
• Booster gain (AG): Number of decibels of amplication provided by the booster (rated gain less any attenuation, as
described in Chapter 5 of this manual). This is always a positive number.
The signal strength S at an interior antenna equals OSL+OAG+IAG+CL+SL+AG.