Sierra Wireless EM75 User Manual

RF Specifications

Rev 1  Dec.17

9

41111980

When attaching antennas to the module:
•

Use RF plug connectors that are compatible with the following RF receptacle 
connectors:

 

Foxconn (KK12011-02-7H), Longwell (911-002-0006R), 

Speedtech (C87P101-00001-H), Murata (MM4829-2702RA4 (HSC)), IPEX 
(20449-001E (MHF4)).

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, use the mounting hole (if possible) to 
attach (ground) the device to a metal chassis.

Band 1

1920–1980 MHz

2110–2170 MHz

Band 2

1850–1910 MHz

1930–1990 MHz

Band 3

1710–1785 MHz

1805–1880 MHz

Band 4

1710–1755 MHz

2110–2155 MHz

Band 5

824–849 MHz

869–894 MHz

Band 6

830–840 MHz

875–885 MHz

Band 8

880–915 MHz

925–960 MHz

Band 9

1749.9–1784.9 MHz

1844.9–1879.9 MHz

Band 19

830–845 MHz

875–890 MHz

a.

WCDMA channel spacing is 5 MHz, but this can be adjusted to optimize 
performance in a particular deployment scenario.

Narrow-band GPS, Galileo

Rx: 1575.42 MHz

Wide-band GPS + GLONASS

Rx: 1559–1606 MHz

Narrow-band BeiDou

Rx: 1561.098 MHz

Narrow-band GLONASS

Rx: 1601.72 MHz

Narrow-band QZSS

Rx: 1572.42 MHz