User Manual

Exalt Installation and Management Guide
ExtendAir (TDD) Series Digital Microwave Radios
102 203591-002
2009-12-18
EIRP Limits for the United States and Canada
EIRP for the US and Canada
4940-4990 MHz Band
For the ExtendAir (TDD) 49xx models, within the 4940–4990 MHz band, the maximum EIRP allowed
is +50dBm. The maximum output power of the radio shall never exceed +24dBm.
For the ExtendAir (TDD) 49xx models, the transmit power must be reduced from maximum by 1 dB
for every 1dB that the antenna gain exceeds 26dBi (including transmission system losses).
5250–5350 MHz Band
For all ExtendAir (TDD) models within the 5250–5350 MHz band, the maximum EIRP is 30 dBm.
The maximum output of the radio is +13 dBm.
P = 30 – G + L
where:
5470–5725 MHz Band
For all ExtendAir (TDD) models within the 5470–5725 MHz band, the maximum EIRP allowed is 30
dBm. The maximum output power of the radio is +13 dBm.
P = 30 – G + L
where:
Note: The professional installer is responsible to ensure that RF output power is properly
adjusted to not exceed the regulatory limit.
As of this writing, the 5.3 band is not approved for use in the US.
P = Maximum transmitter output power of radio, in dBm.
G = Specified gain of antenna, in dBi, from 5250 to 5350 MHz.
L = Total transmission system losses of all elements between the radio’s RF connector and the
antenna’s RF connector (all cables, connectors, lightning suppressors), in dB, as specified
or measured between 5250 and 5350 MHz.
As of this writing, the 5.4 band is not approved for use in the US.