User's Manual
Table Of Contents
- Export BTS Data
- Perform the Calibration Verification Procedure
- Single Antenna Element Test
- Install & Test Customer EMS Operations
- Perform Calibration Using Customer’s EMS
- Verify System Performance
- Verify System Operation With Multiple Modems
- Back Up EMS Database
- Customer Acceptance
- Appendix C: BTS Specifications
- Appendix G: Sample Base Station Drawing
- Appendix H: Antenna Power & Cable Selection
Navini Networks, Inc. Ripwave Base Station I&C Guide
115
whether your system has a Standard Filter in the back of the BTS (write it down at the
bottom of the table and call it D).
• Choose between the value in column E1 and the value in column E2 based on
whether your system has an Active or Passive RFS (write it down at the bottom of the
table and call it E)
4. Calculate the total loss for the combination of each type of Main Cable and the selected
type of Jumper Cable
Calculate the loss of the Higher and Lower Jumper Cables. Read the loss per 100 ft for the
selected type of the selected Jumper Cable for the Operating Frequency Band of your system,
then divide it by 100 and multiply it times the Length of the Higher Jumper Cable.
Loss of Higher Jumper Cable = [Formula 11]
Length of the Higher Jumper Cable ÷ 100
× Loss per 100 feet of the Selected type of Jumper Cable
Loss of Lower Jumper Cable = [Formula 12]
Length of the Lower Jumper Cable ÷ 100
× Loss per 100 feet of the Selected type of Jumper Cable
Calculate the loss of the Main Cable. Read the loss per 100 ft for each type of Main Cable for
the Operating Frequency Band of your system, then divide it by 100 and multiply it times the
Length of the Main Cable.
Loss of one type of Main Cable = [Formula 13]
Length of the Main Cable ÷ 100
× Loss per 100 feet of that type of Main Cable
Calculate the TOTAL CABLE LOSS (RF or CAL Cable) for each type
of Main Cable. This is
the sum of the losses on both Jumper Cables plus the loss of one type of Main Cable, plus 0.6 dB
for terminators and surge arrestors.
TOTAL CABLE LOSS = [Formula 14]
Loss of Higher Jumper Cable
+ Loss of Lower Jumper Cable
+ Loss of one type of Main Cable
+ 0.6 dB
5. Calculate the maximum and minimum values of TX Power and RX Sensitivity at the
base of the antenna elements and build Table I5 with the results.
Notice that TOTAL CABLE LOSS in Formula 14 is the same as RF Cable Loss in Formula 1
and the same as CAL Cable Loss in formulas 2, 4, 5 and 6.