Nautel NV15, Operation And Maintenance Manual

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NV15/NV20 Operations and Maintenance Manual Non-standard maintenance
Page 4-6 Issue 3.2 2013-10-01
Changing the RF output connector
If you need to change the size of the RF output connector, replace it as follows:
Interval
As required.
Parts and tools
Coaxial cable or hardline that matches new connector size, complete with field flange and inner male
(bullet) connector.
Connector kit, available from Nautel. As a minimum, the following options are available:
– 3-1/8 inch EIA, M10 hardware (kit # 206-5225-01); standard for NV20/NV15
Procedure
Take the following steps to change an NV15/NV20 RF output connector (See Figures 4.1 and 4.2 as
guides for assembly and disassembly):
1. Determine the size of the new RF output connector and order the appropriate kit from
Nautel (see “Parts and tools” for options).
2. Unpack the new connector kit and inspect the parts for damage.
3. Turn off the transmitter and disable or lock out its ac power source.
4. Remove the old RF coaxial feed cable from the RF output connector, noting is is secured
using 3/8 or 5/16 hardware.
5. Remove the old output plate and spacer plates, noting the plates are secured together as well
as to the output power probe using eight M6 screws. Retain all hardware.
Note:
Nautel configures the transmitter with the customer’s pre-ordered RF output connector. There are
various factors that determine the appropriate size of the RF output connector, such as site location
(altitude), power level, and available coaxial cable. The coaxial cable must be the same size as the
RF output connector to physically fit together.