User's Manual

uMAXe Installation Guide
Page 38 Commercial in Confidence UGD-D00218 Rev A
The recommended distance between Omni antennas is determined by the frequency band,
as shown in the table below:
Frequency
Distance between antennas
3.x
0.85 meters
2.x
1.20 meters
1.4
4 meters
5.5 Optional Mounting Antenna on uMAXe
Either Antenna shown can be mounted on the uMAXe unit or mast mounted.
Caution: Antennas 1 & 2 Tx/Rx must be connected and attached before uMAXe
is powered on.
Caution: Attach the appropriate cable to the antenna and hand-tighten. Torque
the N-Type connector to 6.2 - 9.7 in-lbs or 0.7 - 1.1 N-m using either a 19mm or
13/16” open end Torque wrench (depending on coupling type).
Caution: Power down uMAXe prior to disconnecting antenna.
The following describes the antenna connection:
Table 18 - Antenna connection
uMAXe port
Port Label on uMAXe
Port on the quad port antenna
Tx/Rx
ANT 1
+45 degree of “first antenna”
Tx/Rx
ANT 2
-45 degree of “second antenna”
5.6 GPS Antenna Assembly
To mount the GPS antenna directly on the uMAXe:
1. Route the RG58 cable through the flat washer and the 2 nuts (supplied).
2. Position the RG58 cable below the mounting hole on the GPS antenna mounting bracket,
as shown below:
Figure 22 - GPS cable assembly prior to mounting
3. Hand-tighten the RG58 cable TNC (90°) connector to the mating connector on the GPS
antenna.