User's Manual

8
10.0 Typical ODU Installation
The picture to the left shows the Converter in a
typical installation with a 2-foot dish antenna. The
Converter should connect to the antenna with the
shortest possible cable. The location on the mast
where it is mounted is not important, provided that
the connectors face downward. (Note that when
this picture was taken, the connectors were not
yet weather proofed nor was the cable secured to
the mast.).
The cable connecting the Converter to the
antenna should not exceed 2 feet in length if
LMR400 cable is used.
In addition, there is no need to plug or fill any of
the holes on the back of the Converter enclosure.
The housing is designed so that these holes do
not penetrate the inside of the waterproof seal.
If the tower or mast is adequately grounded and the U-bolt makes a good electrical
connection to it, there is no need to provide additional grounding to the amplifier
enclosure.
11.0 Link Test Performance
Link tests were performed at 18 miles with a clear line of sight and Fresnel Zone. A
Signal to Noise Ratio (SNR) in excess of 20dB was achieved. The test was set up
according to the Installation Details diagram in Section 12.0 using the following
equipment:
• ORiNOCO ROR
• YDI Diamond WLAN Card
• RF Adapter Cable (LUNM)
• CA2458 Converter/Amplifier
• 75 feet of LMR400 cable between the DC Injector and the Converter
• 2-foot Dish Antennas with 27dBi gain
12.0 Installation Details – Typical Installation
The following diagram on page 10 illustrates the installation details of the Converter.