Microchip Technology MRF24WN0MA, Manual



 2015 Microchip Technology Inc.

Advance Information

DS50002410A-page 23

MRF24WN0MA/MB

This module is approved for installation into mobile
and/or portable host platforms and must not be co-
located or operating in conjunction with any other
antenna or transmitter except in accordance with
Industry Canada's multi-transmitter guidelines. End
users must be provided with transmitter operating con-
ditions for satisfying RF Exposure compliance.

4.2.3

APPROVED EXTERNAL ANTENNA 
TYPES

Transmitter Antenna (from Section 7.1.2 RSS-Gen,
Issue 3, December 2010):
The MRF24WN0MA/MB 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 patterns.
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 mea-
surement or on data from the antenna manufacturer.
For transmitters of output power greater than 10 milli-
watts, the total antenna gain shall be added to the mea-
sured RF output power to demonstrate compliance to
the specified radiated power limits. 
Modular approval testing of the MRF24WN0MA/MB
module was performed with the antenna types listed in

Table 3-1

.

4.2.4

HELPFUL WEB SITES

Industry Canada: 

http://www.ic.gc.ca/

4.3

Europe

The MRF24WN0MA/MB module is an R&TTE Directive
assessed radio module that is CE marked and has
been manufactured and tested with the intention of
being integrated into a final product. 
The MRF24WN0MA/MB module has been tested to
R&TTE Directive 1999/5/EC Essential Requirements
for Health and Safety (Article (3.1(a)), Electromagnetic
Compatibility (EMC) (Article 3.1(b)), and Radio (Article
3.2) and are summarized in Table 3-1: European Com-
pliance Testing. A Notified Body Opinion has also been
issued. All test reports are available on the
MRF24WN0MA/MB product web page at 

http://

www.microchip.com

.

The R&TTE Compliance Association provides guid-
ance on modular devices in document 

Technical

Guidance Note 01

 available at

http://www.rtteca.com/html/download_area.htm

. 

4.3.1

LABELING AND USER 
INFORMATION REQUIREMENTS

The label on the final product which contains the
MRF24WN0MA/MB module must follow CE marking
requirements. The “

R&TTE Compliance Association

Technical Guidance Note 01”

 provides guidance on

final product CE marking.

4.3.2

EXTERNAL ANTENNA 
REQUIREMENTS

From R&TTE Compliance Association document

Technical Guidance Note 01

:

Provided the integrator installing an assessed
radio module with an integral or specific antenna
and installed in conformance with the radio mod-
ule manufacturer’s installation instructions
requires no further evaluation under Article 3.2
of the R&TTE Directive and does not require fur-
ther involvement of an R&TTE Directive Notified
Body for the final product. [Section 2.2.4]

The European Compliance Testing listed in 

Table 4-1

 was performed using the antenna types

listed in 

Table 3-1

.

4.3.3

HELPFUL WEB SITES

A document that can be used as a starting point in
understanding the use of Short Range Devices (SRD)
in Europe is the European Radio Communications
Committee (ERC) Recommendation 70-03 E, which
can be downloaded from the European Radio Commu-
nications Office (ERO) at: 

http://www.ero.dk/

. 

Additional helpful web sites are:
• Radio and Telecommunications Terminal Equip-

ment (R&TTE):

http://ec.europa.eu/enterprise/rtte/index_en.htm

• European Conference of Postal and Telecommu-

nications Administrations (CEPT):

http://www.cept.org/

Note:

To maintain conformance to the testing
listed in 

Table 4-1

, the module shall be

installed in accordance with the installa-
tion instructions in this data sheet and
shall not be modified.

When integrating a radio module into a
completed product the integrator
becomes the manufacturer of the final
product and is therefore responsible for
demonstrating compliance of the final
product with the essential requirements of
the R&TTE Directive.