User guide
Installing and Activating the AirLink GX440
Rev 1.0 Jan.12 27
a
Ant1--Primary, Ant--Secondary (Diversity/MIMO/GPS connector 2.
b
Stated band ranges satisfy requirements fokr both Ant1 and Ant2 for all MC77XX devices.
Tip: When using a cable to connect to an antenna placed away from the device, minimize
the length of the cable. All gain from a more advantageous antenna placement can be lost
with a long cable to the device.
Table 3-1: LTE 4G Antenna Requirements
Parameter Requirements
Antenna system External multi-band 2x2 MIMO antenna system
(Ant1/Ant2).
a
Operating bands of Ant1 and
Ant2
b
• 700 - 960 MHz
• 1710 - 1990 MHz
• 2100 - 2170 MHz
• 2500 - 2700 MHz
Voltage Standing Wave Ratio
(VSWR) of Ant1 and Ant2
1:1 (ideal)
< 2.5:1 (recommended)
Total radiated efficiency of
Ant1 and Ant2
> 50% on all bands
Mean Effective Gain of Ant1
and Ant2 (MEG1, MEG2)
>= -3 dBi
Ant1 and Ant2 Mean Effective
Gain Imbalance I MEG1/MEG2 I
< 2 dB for MIMO operation
< 6 dB for diversity operation
Maximum antenna gain Must not exceed antenna gains due to RF
exposure and ERP/EIRP limits as listed in the
module’s FCC grant.