Dejero EM9191, Руководство по интеграции оборудования

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Regulatory Compliance and Industry Certification
EM919
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Hardware Integration Guide
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Device Operating Mode
Tx Freq
Range (MHz)
Max Time-
Avg Cond.
Power
(dBm)
Antenna Gain Limit (dBi)
Standalone Collocated
LTE B41 2496 2690 24.8 7 7
LTE B41-HPUE 2496 2690 26 7 7
LTE B48 3550 3700 24.8 -1.8 -1.8
LTE B66 1710 1780 24 5.5 5.5
LTE B71 663 698 24 5.5 5
5G NR n2 1850 1910 24.5 8.5 8
5G NR n5 824 849 24.5 6 5.5
5G NR n41 2496 2690 24.5 7 7
5G NR n66 1710 1780 24.5 5.5 5.5
5G NR n71 663 698 24.5 5.5 5
Collocated
Transmitters
WLAN 2.4 GHz 2400 2500 20 - 5
WLAN 5 GHz 5150 5850 20 - 8
Bluetooth 2400 2500 17 - 5
Note: The FCC and IC have a strict EIRP limit in Band 30 for mobile and portable stations in order to
protect adjacent satellite radio, aeronautical mobile telemetry, and deep space network operations.
Mobile and portable stations must not have antenna gain exceeding 0 dBi in Band 30. Additionally,
both the FCC and IC prohibit the use of external vehicle-mounted antennas for mobile and portable
stations in this band.
Fixed stations may use antennas with higher gain in Band 30 due to relaxed EIRP limits. EM919
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modules used as fixed subscriber stations in Canada or fixed customer premises equipment (CPE)
stations in the United States may have an antenna gain up to 9 dBi in Band 30, however, the use of
outdoor antennas or outdoor station installations are prohibited except if professionally installed in
locations that are at least 20 meters from roadways or in locations where it can be shown that the
ground power level of -44 dBm per 5 MHz in the bands 2305–2315 MHz and 2350–2360 MHz or
-55 dBm per 5 MHz in the bands 2315–2320 MHz and 2345–2350 MHz will not be exceeded at the
nearest roadway. For the purposes of this notice, a roadway includes a highway, street, avenue,
parkway, driveway, square, place, bridge, viaduct or trestle, any part of which is intended for use by
the general public for the passage of vehicles.
Mobile carriers often have limits on total radiated power (TRP), which requires an efficient antenna.
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