Rf Interface; Supported Rf Bands; Rf Connection; Table 2. Supported Bands - Sierra Wireless MC Series Hardware Integration Manual

3. RF Interface

The RF interface of the HL8548 allows transmission of RF signals. This interface has a 50Ω nominal
impedance.
3.1.

Supported RF Bands

The AirPrime HL8548 supports the RF bands listed in the table below.
Table 2. Supported Bands
RF Band Transmit band (Tx)
UMTS B1 1922 to1978 MHz
UMTS B2 1852 to 1908 MHz
UMTS B5 826 to 847 MHz
UMTS B6 832 to 838 MHz
UMTS B8 882 to 913 MHz
UMTS B19 832.4 to 842.6 MHz
GSM 850 824 to 849 MHz
E-GSM 900 880 to 915 MHz
DCS 1800 1710 to 1785 MHz
PCS 1900 1850 to 1910 MHz
3.2.

RF Connection

When attaching antennas to the HL8548:

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 Accessory Board.
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 Accessory Board or coaxial cable assembly.

Match coaxial connections between the Accessory Board and the antenna to 50Ω.

Minimize RF cable losses to the antenna; the recommended maximum cable loss for antenna
cabling is 0.5 dB.

To ensure best thermal performance, mounting holes must be used to attach (ground) the
device to the main PCB ground or a metal chassis.
Note: If the antenna connection is shorted or open, the HL8548 will not sustain permanent damage.
4119996
Receive band (Rx)
2112 to 2168 MHz
1932 to 1988 MHz
871 to 892 MHz
877 to 883 MHz
927 to 958 MHz
877.4 to 887.6 MHz
869 to 894 MHz
925 to 960 MHz
1805 to 1880 MHz
1930 to 1990 MHz
Rev 1.4
Maximum Output Power
23 dBm (+/- 2dBm) Class 3bis
23 dBm (+/- 2dBm) Class 3bis
23 dBm (+/- 2dBm) Class 3bis
23 dBm (+/- 2dBm) Class 3bis
23 dBm (+/- 2dBm) Class 3bis
23 dBm (+/- 2dBm) Class 3bis
2 Watts GSM, GPRS and EDGE
2 Watts GSM, GPRS and EDGE
1 Watt GSM, GPRS and EDGE
1 Watt GSM, GPRS and EDGE
April 10, 2017 10