[MLB-WIRELESS] Bullet2 output power, why 1W or 100mW

[David Smith]

You can.  And there are people who - quite legally - run more than three 
times this sort of EIRP on 2.4GHz.

The secret is in the EMR (Site Radiation) level.  At 100kW, there is an 
exclusion zone of about 25m in front of the dish (on-axis).  So, if your 
dish can point at a neighbours house, or other areas where humans can be 
expected, it must be more than 25m distance for levels to be safe.

The people I was referring to above run EME (AKA Moonbounce) and so 
their dishes can be restricted to only point into the sky.  In this 
case, the ACMA are perfectly happy.

You'll find a simple EMR calculator here:
http://www.sm2cew.com/VK3UM%20EMRCalc%20Ver%206.41%20Install.zip

EMR limits apply equally to WiFi installations, although you'll find the 
exclusion zone quite small.

Regards,
Dave
VK3HZ


Steven Haigh wrote:
> If you believe a HAM license will allow you to use 100kW EIRP then I  
> seriously suggest calling the licensing area of the ACMA to set the  
> record straight. You can contact them on 03 9963 6800. Ask to speak to  
> the radio communications licensing team.
> 
>  From previous discussions with ACMA regulators, I believe 200W EIRP  
> was the maximum limit for ALL operators in the 2.4Ghz band that  
> encompasses 802.11 equipment, not just amateur operators. Above that  
> and the health and safety laws kick in and you are asking for trouble.