10
Planning
You may mix and match dome and directional antennas as needed to obtain proper coverage
throughout the building or area where you need to boost the signal. If you are using a Yagi exte-
rior antenna, you should normally aim it away from all interior antennas regardless of separation to
prevent oscillation.
3.5 - Calculating Signal Strength
You can calculate the number of antennas you will need using the following parameters (in dB):
•
Outside signal level (OSL)
: This is the signal strength at the exterior antenna location and will
always be a negative number that will usually fall between -50 and -100dBm. Calls will
drop at levels of about -100dB and lower.
•
Outside antenna gain (OAG):
This the signal boost provided by the exterior antenna and is
always a positive number with SureCall antennas.
CAUTION: SIGNAL OSCILLATION CAN CAUSE RADIO
INTERFERENCE WITH CELLULAR TOWERS AND
RESULT IN CIVIL AND/OR CRIMINAL PENALTIES.
SC-100-S omni +5 +5
SC-100-L omni +9 +9
SC-288-W omni +3 +4
SC-230-W Yagi +10 +11
OAG Cellular PCS
https://www.signalbooster.com | 1-855-846-2654 | [email protected]
