RADIO FREQUENCY INFORMATION
The wireless transmitters used for the City of Waukegan AMR Project use radio frequencies (RF) to transmit data. The exposures to RF from a wireless meter are much lower than many common household devices, including cell phones, laptop computers, and microwave ovens. The meters use a fraction of the power of a cell phone, and total daily transmission is less than 15 seconds per day.
COMPARISON OF TYPICAL RADIO FREQUENCY (RF) EXPOSURES
Relative Power Density in microwatts per square centimeter (mW/cm2)
- FM Radio or TV Broadcast Station Signal: 0.005
- AMR Transmitter: 0.32
- Cordless Phones and Baby Monitors: 0.60
- Wi-Fi: 10 – 20
- Laptop Computer: 10 – 20
- Cell Phone – Held up to head: 30 – 10,000
- Walkie-Talkie – At head: 500 – 42,000
Source: Richard Tell Associates, Inc.
RF OUTPUT INFORMATION FOR THE WATER METER COMMUNICATION MODULE
- Operating frequency of the meter communication module is in the Industrial, Scientific, and Medical (ISM) band at frequencies from 902 to 928 MHz.
- The transmission time is extremely short, less than 10 milliseconds.
- The module transmits a message every minute. Total transmission time is less than 15 seconds per day.
- When not transmitting data, the module remains off.
- The module's power output is 0.516W (the average lightbulb is 60W)
- The FCC guideline for Maximum Permissible Exposure (MPE) is 6.10 mW/cm2 at 20 cm.
- The meter communication module power density is 0.215 mW/cm2 at 20 cm.
- FCC ID: EWQ100WC
- IC: 864D-100WC