User's Manual

9
1-4 Calculate Transmit Power
In order to obtain the best performance of booster and system, user must
calculate the transmission power to meet the booster technical
requirement and FCC regulations(See Appendix B). It is advised that the
user follows the calculation below:
1. Converter power of the access point from milliwatts to dBm.
Note: dBm = 10 * Log(milliwatts)
2. Determine the attenuation of cable(please refer to manufacturer’s
specifications)
Note: Suggest the cable loss between booster and DC injector should not
exceed 10 dBm generally.
Table A – Typical Cable Attenuation Values
Cable Type Attenuation dB/100ft @2.4GHz
RG-142 21
LMR200 16.5
LMR400 6.6
LMR600 4.4
LMR900 2.92
Belden 9913 7.1
Note: Values are approximate.