User's Manual

Compliance with radio regulations Chapter 4 Reference information
phn-2182_002v000
4-32
May 2011
Examples of regulatory limits
Each country imposes specific limits on the frequencies, channel widths and maximum
transmit power that may be used by wireless equipment. When a new PTP 250 unit is
first accessed via the web interface, the user is required to select the Country Code
from a list. The PTP 250 firmware does not allow the unit to be configured to operate
outside the regulatory limits that apply to the selected country.
CAUTION
It is the responsibility of the user to ensure that the PTP product is operated
in accordance with local regulatory limits.
Table 4-23 c
ontains examples of the regulatory limits that apply in typical countries of
operation.
Table 4-23 Example of regulatory limits
Country Band Permitted
frequencies
Radar
avoidance
(DFS) required?
Maximum
transmit
power
UK 5.4 GHz 5470 - 5600 MHz
5650 - 5725 MHz
Yes 30 dBm
EIRP
USA 5.8 GHz 5725 - 5825 MHz No 30 dBm
Denmark 5.8 GHz 5725 - 5795 MHz
5815 - 5875 MHz
Yes 36 dBm
EIRP
The PTP 250 may be constrained to operate within narrower frequency limits than
those specified in the regulations for certain countries.