Appendixc - Antenna For The Multi Modem Isms; Rf Specifications; Antenna Specifications; Gsm/Egsm Antenna Requirements/Specifications - Multitech MultiModem SF 100-G User Manual

Appendix C – Antenna for the

RF Specifications

GSM 850
Frequency RX 869 to 894 MHz
Frequency TX 824 to 849 MHz
RF Power Stand 2W at 12.5% duty
cycle

Antenna Specifications

GSM/EGSM Antenna Requirements/Specifications

Frequency Range:
Impedance:
VSWR:
Typical Radiated Gain:
Radiation:
Polarization:
Wave:

Antennas Available from Multi-Tech Systems, Inc.

Description
900/1800 MHz 1/2 Wave Antenna Mag Mount, 12.5", 1 Pack
850/1900 MHz 1/2 Wave Antenna Mag Mount, 12.5", 1 Pack

PTCRB Requirements Note

There cannot be any alteration to the authorized antenna system. The antenna system must be the same
type with similar in-band and out-of-ban radiation patterns and maintain the same specifications.

FCC Requirements Note

The antenna gain, including cable loss, must not exceed 3.0 dBi at 1900 MHz / 1.4 dBi at 850 MHz for
mobile operating configurations and 7.0 dBi at 1900 MHz / 1.4 dBi at 850 MHz for fixed mounted
operations, as defined in 2.1091 and 1.1307 of the rules for satisfying RF exposure compliance.
The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20
cm from all persons and must not be collocated or operating in conjunction with any other antenna or
transmitter.
Multi-Tech Systems, Inc.
MultiModem iSMS
EGSM 900
925 to 960 MHz
880 to 915 MHz
2W at 12.5% duty
cycle
824 – 960 MHz / 1710 – 1990 MHz
50 Ohms
<2.0:1
3 dBi on azimuth plane
Omni
Vertical
Half Wave Dipole
MultiModem® iSMS User Guide for Administrators
GSM 1800 GSM 1900
1805 to 1800 MHz 1930 to 1990 MHz
1710 to 1785 MHz 1850 to 1910 MHz
1W at 12.5% duty 1W at 12.5% duty
cycle cycle
Part Number
ANF1-1MMHW
ANF2-1MMHW
86