User guide

Installation and Startup
Rev 2 Jun.13 19
Note: If the separation is less than 0.25 wavelength, increase it to at least 0.25 wavelength
(preferably greater than 0.5 wavelength) of the lowest operating frequency.
• In confined spaces, a separation of 0.15 wavelength is possible, but this will
result in reduced network coverage.
• The recommended separation is only an approximate value for monopole or
dipole type antennas.
Sierra Wireless recommends the following antenna separation:
Table 2-1: Recommended Antenna Separation
Service Frequency
(Hz)
Wavelength
(mm)
Best
Separation
(mm)
Good
Separation
(mm)
Reduced
Service
Separation
(mm)
LTE 700 428 214 107 64
LTE 800 375 187 94 56
LTE 900 333 167 83 50
LTE 1800 167 83 42 25
LTE 2100 143 71 36 21
LTE 2600 115 58 29 17
WCDMA 850 353 176 88 53
WCDMA 900 333 167 83 50
WCDMA 1900 158 79 39 24
WCDMA 2100 143 71 36 21
CDMA/EV-DO 800 375 187 94 56
CDMA/EV-DO 1900 158 79 39 24
GSM/GPRS/EDGE 850 353 176 88 53
GSM/GPRS/EDGE 900 333 167 83 50
GSM/GPRS/EDGE 1800 167 83 42 25
GSM/GPRS/EDGE 1900 158 79 39 24
Table 2-2: Separation Examples for Carrier-Specific Bands
Service Band Carrier Country Min
Frequency
(Hz)
Wavelength
(mm)
Best
Separation
(mm)
Good
Separation
(mm)
Reduced
Service
Separation
(mm)
LTE 13 Verizon US 746 401.8665657 201 100 60
LTE 17 AT&T US 704 425.8415597 213 106 64
LTE 4 Bell/Rogers/Telus Canada 1710 175.3172269 88 44 26