MRF24WB0MA_13 Datasheet, PDF (23/38 Pages) Microchip Technology – MRF24WB0MA/MRF24WB0MB Data Sheet 2.4 GHz IEEE 802.11b™

MRF24WB0MA/MRF24WB0MB
Transmitter Antenna (from Section 7.1.2, RSS-Gen,
Issue 3, December 2010): User manuals for transmit-
ters must display the following notice in a conspicuous
location:
Under Industry Canada regulations, this radio
transmitter may only operate using an antenna of a
type and maximum (or lesser) gain approved for
the transmitter by Industry Canada. To reduce
potential radio interference to other users, the
antenna type and its gain should be so chosen that
the equivalent isotropically radiated power (e.i.r.p.)
is not more than that necessary for successful
communication.
Conformément à la réglementation d'Industrie
Canada, le présent émetteur radio peut fonction-
ner avec une antenne d'un type et d'un gain maxi-
mal (ou inférieur) approuvé pour l'émetteur par
Industrie Canada. Dans le but de réduire les ris-
ques de brouillage radioélectrique à l'intention des
autres utilisateurs, il faut choisir le type d'antenne
et son gain de sorte que la puissance isotrope ray-
onnée équivalente (p.i.r.e.) ne dépasse pas l'inten-
sité nécessaire à l'établissement d'une
communication satisfaisante.
The above notice may be affixed to the device instead
of displayed in the user manual.
User manuals for transmitters equipped with
detachable antennas shall also contain the following
notice in a conspicuous location:
This radio transmitter (identify the device by certifi-
cation number, or model number if Category II) has
been approved by Industry Canada to operate with
the antenna types listed below with the maximum
permissible gain and required antenna impedance
for each antenna type indicated. Antenna types not
included in this list, having a gain greater than the
maximum gain indicated for that type, are strictly
prohibited for use with this device.
Conformément à la réglementation d'Industrie
Canada, le présent émetteur radio peut fonction-
ner avec une antenne d'un type et d'un gain maxi-
mal (ou inférieur) approuvé pour l'émetteur par
Industrie Canada. Dans le but de réduire les ris-
ques de brouillage radioélectrique à l'intention des
autres utilisateurs, il faut choisir le type d'antenne
et son gain de sorte que la puissance isotrope ray-
onnée équivalente (p.i.r.e.) ne dépasse pas l'inten-
sité nécessaire à l'établissement d'une
communication satisfaisante.
After the preceding notice, the manufacturer must pro-
vide a list of all antenna types approved for use with the
transmitter, indicating the maximum permissible
antenna gain (in dBi) and required impedance for each.
3.2.2
APPROVED EXTERNAL ANTENNA
TYPES
Transmitter Antenna (from Section 7.1.2 RSS-Gen,
Issue 3, December 2010):
The MRF24WB0MA/MRF24WB0MB module can only
be sold or operated with antennas with which it was
approved. Transmitter may be approved with multiple
antenna types. An antenna type comprises antennas
having similar in-band and out-of-band radiation pat-
terns. Testing shall be performed using the highest gain
antenna of each combination of transmitter and
antenna type for which approval is being sought, with
the transmitter output power set at the maximum level.
Any antenna of the same type having equal or lesser
gain as an antenna that had been successfully tested
with the transmitter, will also be considered approved
with the transmitter, and may be used and marketed
with the transmitter.
When a measurement at the antenna connector is
used to determine RF output power, the effective gain
of the device’s antenna shall be stated, based on
measurement or on data from the antenna
manufacturer. For transmitters of output power greater
than 10 milliwatts, the total antenna gain shall be added
to the measured RF output power to demonstrate
compliance to the specified radiated power limits.
Approved external antenna types for the
MRF24WB0MB module are listed in Table 2-2 in
Section 2.8, External Antenna.
3.2.3 HELPFUL WEB SITES
Industry Canada: http://www.ic.gc.ca/.
3.3 Europe
The MRF24WB0MA/MRF24WB0MB module is an
R&TTE Directive assessed radio module that is CE
marked, and manufactured and tested with the inten-
tion of being integrated into a final product.
The MRF24WB0MA/MRF24WB0MB module tested to
R&TTE Directive 1999/5/EC Essential Requirements for
Health and Safety (Article (3.1(a)), Electromagnetic Com-
patibility (EMC) (Article 3.1(b)), and Radio (Article 3.2)
and are summarized in Table 3-1. A Notified Body Opin-
ion has also been issued. All test reports are available on
the MRF24WB0MA/MRF24WB0MB product web page at
http://www.microchip.com.
The R&TTE Compliance Association provides guid-
ance on modular devices in the document “Technical
Guidance Note 01”, which is available at http://
www.rtteca.com/html/download_area.htm.
 2010-2013 Microchip Technology Inc.
DS70632C-page 23