Cellular Information; Antenna System For Cellular Devices; Ptcrb Requirements For The Antenna; Fcc Requirements For The Antenna - Multitech MultiModem rCell User Manual

EV-DO
Sleep
9 volts
0.0465A, 2.27W
20 volts
0.125A, 2.50W
32 volts
0.238A, 7.62W
Multi-Tech Systems, Inc. recommends that the customer incorporate a 10% buffer into their power source
Note:
when determining product load.

Cellular Information

Antenna System for Cellular Devices

The cellular/wireless performance depends on the implementation and antenna design. The integration of the
antenna system into the product is a critical part of the design process; therefore, it is essential to consider it early
so the performance is not compromised. If changes are made to the certified antenna system of the MultiModem,
then recertification is required by specific network carriers such as Sprint. The Antenna System is defined as the
UFL connection point from the MultiModem to the specified cable specifications and specified antenna
specifications.

PTCRB Requirements for the Antenna

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

FCC Requirements for the Antenna

The antenna gain, including cable loss, for the radio you are incorporating into your product design must not
exceed the requirements at 850 MHz and 1900 MHz as specified by the FCC grant for mobile operations and fixed
mounted operations as defined in 2.1091 and 1.1307 of the FCC rules for satisfying RF exposure compliance. The
antenna used for transmitting must be installed to provide a separation distance of at least 20cm from all persons
and must not transmit simultaneously with any other antenna transmitters. User and installers must be provided
with antenna installation instructions and transmitter operating conditions to satisfying RF exposure compliance.

Antenna Specifications

CDMA RF Specifications
Frequency RX
Frequency TX
CDMA Antenna Requirements/Specifications
Frequency Range
Impedance
VSWR
Typical Radiated Gain
Radiation
Polarization
22
Typical
0.370A, 3.40W
0.220A, 4.40W
0.145A, 4.64W
CDMA 800 CDMA 1900
869 to 894 MHz 1930 to 1990 MHz
824 to 849 MHz 1850 to 1910 MHz
824 – 894 MHz / 1850 – 1990 MHz
50 Ohms
VSWR shall not exceed 2.0:1 at any point across the bands of operation
3 dBi on azimuth plane
Omni-directional
Vertical
Maximum
0.780A, 7.13W
0.374A, 7.48W
0.385A, 7.62W
Chapter 1 – Product Overview
MultiModem rCell User Guide