Guidelines for proper use of 802.11b and 802.11g NETGEAR
antennas and accessories in Europe

1.1 Introduction

For EU, use of any antenna requires careful planning and extra consideration to comply with EU emissions and health standards and regulations. It is recommended that a qualified professional installer service be consulted for site survey and proper installation. Antenna installation must comply with the maximum level authorized by each country.

This information provides guidelines to enable you to install the NETGEAR detachable antennas ANT24O5, ANT2409 and ANT24D18 with a WLAN 11b/g wireless node (access point or wireless router) & antenna cable and be compliant with the European EMC and radio communication regulations.

In most European countries the maximum equivalent isotropic radiated power limit is 100mW* EIRP. When installing ANT24D18, ANT2409 or ANT24O5 antennas, the installer has to be sure the limits won't be exceeded by means of inserting attenuation — if needed — in between the wireless node and the antenna. For Europe, it is mandatory to select and use the EU setting.

* Please note that in some European countries, the output power is limited to 10mW or restricted in some parts of the spectrum or restricted for indoor/outdoor usage only or even restricted per application. Please consult the particular regulation of your country.

1.2 NETGEAR Antenna Cable Attenuation at 2.4 ~ 2.5 GHz

NETGEAR Cable Type Length Attenuation
at 2.4 ~ 2.5 GHz
ACC-10314-01 1.5 m 1.1dB
ACC-10314-02 3 m 2.0 dB
ACC-10314-03 5 m 3.2 dB
ACC-10314-04 10 m 6.1 dB
ACC-10314-05 30 m 18.0 dB

1.3 Installation Procedure for the Wireless Node, Antenna Cable, and Antenna

  1. In the table below, identify the NETGEAR Antenna and Wireless node to be used, e.g. ANT24O5 and the ME103.
  2. Read the required cable attenuation. If using a NETGEAR cable, check the type to be used, e.g. 1 ACC-10314-03 in previous example
  3. Connect the selected antenna cable to the Wireless Node and to the antenna
  4. Note: when using the directional ANT24D18, be sure to use a RF cable with the minimum attenuation as given to comply with European regulations. The attenuation can be implemented by either using a cable with a higher attenuation rate or using a very long cable
NETGEAR Antenna & max. Gain Wireless Node (with mandatory EU setting) Output Power max. Theoretical EIRP without cable MINIMUM Cable Attenuation needed NETGEAR Antenna cable, MINIMUM LENGTH NETGEAR Antenna cable Solution
ANT24D18, 18dBi max. ME103 18dBm 36 dBm EIRP 16 dB 30 m ACC-10314-05 or longer
FM114P 16dBm 34 dBm EIRP 14 dB 30 m ACC-10314-05 or longer
FWG114P
FWG114Pv2
15dBm 33 dBm EIRP 13 dB 30 m ACC-10314-05 or longer
DG824M 17dBm 35 dBm EIRP 15 dB 30 m ACC-10314-05 or longer
WAG302 (2.4GHz port ONLY) 15dBm 33 dBm EIRP 13 dB 30 m ACC-10314-05 or longer
WG102 15dBm 33 dBm EIRP 13 dB 30 m ACC-10314-05 or longer
WG302 15dBm 33 dBm EIRP 13 dB 30 m ACC-10314-05 or longer
ANT2409, 9dBi max. ME103 18dBm 27 dBm EIRP 7 dB 30 m ACC-10314-05 or longer
FM114P 16dBm 25 dBm EIRP 5 dB 10 m ACC-10314-04 or longer
FWG114P
FWB114Pv2
15dBm 24 dBm EIRP 4 dB 10 m ACC-10314-04 or longer
DG824M 17dBm 26 dBm EIRP 6 dB 10 m ACC-10314-04 or longer
WAG302 (2.4GHz port ONLY) 15dBm 24 dBm EIRP 4 dB 10 m ACC-10314-04 or longer
WG102 15dBm 24 dBm EIRP 4 dB 10 m ACC-10314-04 or longer
WG302 15dBm 24 dBm EIRP 4 dB 10 m ACC-10314-04 or longer
ANT24O5,
5dBi max.
ME103 18dBm 23 dBm EIRP 3 dB 5 m ACC-10314-03 or longer
FM114P 16dBm 21 dBm EIRP 1 dB 1.5 m ACC-10314-01 or longer
FWG114P
FWG114Pv2
15dBm 20 dBm EIRP 0 dB 1.5 m ACC-10314-01 or longer
DG824M 17dBm 22 dBm EIRP 2 dB 3 m ACC-10314-02 or longer
WAG302 (2.4GHz port ONLY) 15dBm 20 dBm EIRP 0 dB 1.5 m ACC-10314-01 or longer
WG102 15dBm 20 dBm EIRP 0 dB 1.5 m ACC-10314-01 or longer
WG302 15dBm 20 dBm EIRP 0 dB 1.5 m ACC-10314-01 or longer

1.4. Installation of the NETGEAR Antennae, ANT24O5, ANT2409 and ANT24D18 with other wireless node products:

The formula to calculate the attenuation between the wireless node and the antenna is:

CL = POUT + GA - LMAX [dB] with

POUT is the max output power of the wireless node with Europe mandatory setting in [dBm], e.g. 15dBm for the NETGEAR WG302,

GA is the maximum gain of the antenna in [dBi], e.g. 18dBi for the NETGEAR ANT24D18, 9dBi for the NETGEAR ANT 2409 or 5dBi for the NETGEAR ANT24O5,

LMAX is the maximum equivalent isotropic radiated power limit permitted for the particular application in your country. It is 100mW* EIRP = 20dBm EIRP in most European countries. Please be aware that this limit can be lower (e.g. 10mW) in some country, or for some channels, or depending of the application (indoor, outdoor, RLAN, etc.),

CL is the minimum cable loss in [dB], e.g. 15 dBm + 18 dBi – 20 dBm = 13 dB in the above example for the WG302 and the ANT24D18: Use table 1.2 to find out the Netgear minimum cable length as required by European regulations.

If you find a negative value of CL, the attenuation of the cable is not required, in other words you can attach the antenna directly to the wireless node (if feasible) or use the shortest antenna cable.

Disclaimer: NETGEAR assumes no responsibility in case of intentional or unintentional violation of the maximum allowable EIRP in a particular country, miscalculation of the attenuation, faulty non-NETGEAR wireless node, or bad connection from antenna to wireless node.