Rf Specifications; Rf Connections; Shielding; Figure 5-1: Module Connectors - Sierra Wireless AirPrime MC7710 Product Technical Specification & Customer Design Manuallines

5: RF Specifications

Note: To disconnect the
antenna, make sure you
use the Hirose U.FL
connector removal tool
(P / N UFL-LP-N-2(01)) to
prevent damage to the
module or coaxial cable
assembly.
Rev 6 Mar.13 Proprietary and Confidential - Contents subject to change
The MC7710 includes three
antennas:
• Main RF connector — Rx / Tx path
• GPS connector 1 — Standalone GPS
• Diversity / MIMO / GPS connector 2— Diversity, MIMO, or GPS
The module does not have integrated antennas.

Figure 5-1: Module connectors

RF connections

When attaching antennas to the module:
• Use Hirose U.FL connectors (3 mm x 3 mm, low profile; model
U.FL #CL331-0471-0-10) to attach antennas to connection points
on the module, as shown in

• Match coaxial connections between the module and the antenna
to 50 .
• Minimize RF cable losses to the antenna; the recommended
maximum cable loss for antenna cabling is 0.5 dB.
• To ensure best thermal performance, if possible use the
mounting holes to attach (ground) the device to the main PCB
ground or a metal chassis.
Note: If the antenna connection is shorted or open, the modem will not
sustain permanent damage.

Shielding

The module is fully shielded to protect against EMI and must not be
removed.
RF connectors for use with host-supplied
I/O connector
Main RF connector
GPS connector 1
Diversity/MIMO/GPS
connector 2
Figure 5-1 on page 39.
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