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FAQs - Canadian RSS-210

How much power can I use on my 2.4 GHz PtP system in Canada?

According to Canadian RSS-210 Issue 5, Amended Nov. 30, 2002, 2.4 GHz DSSS point-to-point transmitters may use up to a 30 dBm (1 watt) transmitter. EIRP is limited to 200 watts (23 dBW). Power levels above 4 watts (36 dBm) EIRP are permitted only for point-to-point (PtP) systems. However, remote stations of point-to-multipoint (PtMP) systems shall be permitted to operate at the PtP EIRP limit provided that the higher EIRP is acheived by employing higher gain directional antennas and not higher transmitter output powers.

Refer to the following table.

Power at antenna (dBm/watts) Max Antenna Gain (dBi) EIRP (dBm) EIRP (watts)

30 dBm (1 W)

23

53

200

27 dBm (0.5 Watt)

26

53

200

23 dBm (200 mW)

30

53

200

How much power can I use on my 2.4 GHz PtMP system in Canada?

According to Canadian RSS-210 Issue 5, Amended Nov. 30, 2002, 2.4 GHz DSSS PtMP radios (Access Points) may use up to a 30 dBm (1 watt) transmitter and are limited to 4 watts (36 dBm) EIRP.

This is 30 dBm (1 watt) into a 6 dBi antenna.  If you use a 10 dBi antenna, you must limit your transmitter (or amplifier) to 26 dBm (10 + 26 = 36 dBm). For a 14 dBi panel antenna, this allows a 22 dBm transmitter (or amplifier). Power is measured at the antenna connector, so subtract any cable loss between the amplifier and the antenna. Refer to the following table:

Power at antenna (dBm/Watts) Antenna Gain (dBi) EIRP (dBm) EIRP (watts)

30 dBm (1 W)

6

36

4

27 dBm (500 mW)

9

36

4

24 dBm (250 mW)

12

36

4

21 dBm (125 mW)

15

36

4

18 dBm (62 mW)

18

36

4

15 dBm (31 mW)

21

36

4

12 dBm (15 mW)

24

36

4

Find answers to any of your qustions by contacting our experienced Consulting Team providing professional services to the developing technological world.

 

Technical FAQ Categories

Basics, Access Point, Antenna Properties, Canadian RSS-210, Client Equipment, FCC Part 15, Point to Multi-Point, Point to Point, Pre-installation and Site Preparation, Radio Propagation, Reference Material, Troubleshooting.

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