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11
Planning
• Inside a
ntenna gain (IAG): This is the signal boost provided by an interior antenna and is always a
positive number with SureCall antennas.
• Cable loss (CL): This is the signal loss caused by the cable and is always a negative number.
• Splitter loss (SL): This is the signal loss caused by a splitter (used if you are installing multiple
antennas).
• Bo
oster gain (AG): Number of decibels of amplification 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.
2-way -3
3-way -5
4-way -6
SL
Loss
SC-222W-TNC omni dome +3
IAG
Gain
20 ft. SC-400-TNC
-1 dB / -2 dB
30 ft. SC-400-TNC
-2 dB / -4 dB
50 ft. SC-400-TNC
-3 dB / -6 dB
100 ft. SC-400-TNC
-4 dB / -8 dB
CL
Loss
