User's Manual

Navini Networks, Inc. Ripwave Base Station I&C Guide
114
Calculate the weight of the section of main Cable hanging from the tower for each type Main
cable.
Weight on Tower of one type of Main Cable = [Formula 8]
Vertical Drop
× Weight of one foot of that type of Main Cable
Calculate the weight of the power and data cable
Weight of a P&D Cable = [Formula 9]
(Length of the Higher Jumper Cable
+ Vertical Drop)
× Weight of one foot of P&D Cable
Calculate the weight of all cables on the tower for each type Main cable
Weight of All Cables = [Formula 10]
(Weight of Higher Jumper Cable
+ Weight on Tower of one type of Main Cable) × 9
+ Weight of P&D Cable
Eliminate for further consideration the cable combinations that exceed the maximum allowed
weight for all cables.
3. Perform preliminary calculations in Table H1
Using the Input Data, fill the cells A through I at the bottom of the Table H1 with the appropriate
values.
• Select first one row based on the operating frequency (plus the number of sub-carriers
if 2.3 GHz or whether the chassis is split or combo if 2.6 GHz).
• For that row, copy the values in columns B, F, G, H and I at the bottom of the table.
• Choose between the value in column A1 and the value in column A2 based on
whether your system must comply with FCC regulations or not (write it down at the
bottom of the table and call it A).
• If the operating frequency is 2.3 or 2.4 GHz, choose between the value on column C1
or the value in column C2 based on the antenna type, Omni or Panel; If the operating
frequency is 2.4 GHz, take also into consideration whether the regulatory body is the
FCC or European (write the value down at the bottom of the table and call it C).
• Choose between the value in column D1 and the value in column D2 based on