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NetVanta 1335 Series Hardware Installation Guide
Description
Average Gain
Efficiency
Polarization (Ratio Gv: Gh)
Input VSWR
Description
Isolation
Fading Correlation Coefficient
This device has been designed to operate with the antennas listed below, and having a
maximum gain of 2 dB. Antennas not included in this list or having a gain greater than
2 dB are strictly prohibited for use with this device. The required antenna impedance is
50 ohms.
Proper antennas are: Pulse/Larson Dipole Antenna
Part Number: SPDA24850/1900
Antenna Extensions
Coaxial cable can be connected to the standard SMA antenna connectors to extend the placement distance
of the antennas from the 3G NIM base unit. Using cables introduces signal loss in the antenna system, but
can be minimized by minimizing the length of cable used and using low-loss or ultralow-loss antenna
cables. Cables that do not match the antenna specifications are strictly prohibited for use with this device.
Using improper cables may hinder the ability of the 3G NIM to communicate with a
cellular network. Refer to the documentation accompanying your cables to ensure you
have the right cables for this usage and that the cables meet the requirements specified
above.
Additional Warnings
The following are guidelines and warnings for wireless access devices.
1. Do not operate radio frequency (RF) devices in an environment that may be susceptible to radio
interference resulting in danger, specifically:
Areas where prohibited by law.
Areas where explosive atmospheres may be present.
Areas where medical or life support equipment may be present.
On an aircraft, either on the ground or airborne.
While operating a vehicle.
61700515E2-34C
Table 4. Diversity Antenna Specifications
Minimum
-9.0
-10.0 (10)
0.0
Table 5. Antenna-to-Antenna Requirements
Minimum
Copyright © 2011 ADTRAN, Inc.
Maximum
dBi
dB (%)
dB
2.5:1
Maximum
-8.0
dB
0.5
dB (%)
Unit Installation
Unit
Unit
45
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