CHAPTER 3: SYSTEM PLANNING
PAGE 3-30
Table 36 Wireless specifications, 5 GHz band
20 MHz, 40 MHz, or 80 MHz
Integrated dish antenna 25 dBi
Integrated patch antenna 17 dBi
Sector antenna 17 dBi
Antenna 3dB beamwidth (Integrated dish)
Sector Antenna: 70° azimuth, 6° elevation
Integrated Dish: 6-10° azimuth, 6-10° elevation
Integrated Patch: 15° azimuth, 30° elevation
Regulatory limits
The local regulator may restrict frequency usage and channel width and may limit the amount of
conducted or radiated transmitter power.
Many countries impose EIRP limits (Allowed EIRP) on products operating in the bands used by the
ePMP Series. For example, in the 5 GHz band, these limits are calculated as follows:
In the 5.8 GHz band (5725 MHz to 5875 MHz), the EIRP must not exceed the lesser of 36 dBm or (23
+ 10 x Log Channel width in MHz) dBm.
Some countries (for example the USA) impose conducted power limits on products operating in the 5
GHz band.
Conforming to the limits
Ensure the link is configured to conform to local regulatory requirements by configuring the correct
country code (located in the web management interface, under Configure > Radio). In the following
situations, the country code does not automatically prevent operation outside the regulations:
When operating in ETSI regions, it is required to enter a license key in the ePMP web management
interface to unlock valid country-specific frequencies. This key may be obtained from
https://support.cambiumnetworks.com/licensekeys/epmp.
Available spectrum
The available spectrum for operation depends on the region. When configured with the appropriate
country code, the unit will only allow operation on those channels which are permitted by the
regulations.
Certain regulations have allocated certain channels as unavailable for use:
Some European countries have allocated part of the 5.8 GHz band to Road Transport and Traffic
Telematics (RTTT) systems.
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