Range and measured EMFs versus the transmit power setting for the JRS Eco 100 Era router

Figure 1. With the output power set to 1 milliwatt, the JRS Eco 100 Era router has the lowest EMF emissions available on the market: 280 µW/m², measured with a Safe and Sound Pro II RF meter at a distance of 8 feet (=2.5 meters).

First of all, it’s important to understand that transmission power is inextricably linked to a router’s range — it’s a physical fact of life. We ship the JRS routers with an output power of 20 milliwatts by default (previously 63 milliwatts), which provides an adequate range for a medium-sized home. You can manually adjust the output power to suit your needs, giving you exactly the range you want. When set to 1 milliwatt, the JRS Eco 100 Era router has the lowest EMF emissions on the market. With the Safe and Sound meter, we measured it at only 280 microwatts per square meter (µW/m²) at a distance of 8 feet.

The Eco 100 router is 100% EMF-free when no WiFi devices are connected. With WiFi active, these are the measured emission values.

The table below shows the exact level of emitted power measured. As different brands of EMF meters respond differently, we have included readings taken with both the Safe and Sound Pro II RF meter and the Cornet ED98 QPro 5G meter for easy comparison. The Safe and Sound meter is more sensitive to WiFi frequencies than the Cornet meter and thus produces higher readings.

JRS Eco 100 Era

Power / Range setting [milliwatt]
for 2.4 GHz *

 Range Measured with WiFi active. (When the JRS router is in sleep mode, RF emission is zero.)
Measured with Safe and Sound Pro II RF meter at 8 feet distance Measured with Cornet ED98 QPro 5G meter at 2 feet distance Measured with Rohde & Schwarz FSH6 spectrum analyzer at 2 feet distance
Power density [µW/m2]

(Lower is less EMF)

 Channel power [dBm]
(Higher is less EMF, logarithmic)
1 ← Lowest EMF of all Minimum 280 290 -34 -33.4
10 Medium 1320 1076 -26 -26.7
100 Maximum 9220 7110 -18 -18.6

* How can I adjust the transmit power of the JRS Eco 100 Era?

Figure 2. EMF emissions of the JRS Eco 100 Era router, measured with a Cornet ED98 QPro 5G meter at a distance of 2 feet (=0.6 meters). To make it easier to compare, the measurement was taken at a shorter distance, as the Cornet is less sensitive to WiFi frequencies.

 

Figure 3. The measurements taken with the Rohde & Schwarz FSH6 spectrum analyzer confirm factor between the measurements at different power and range settings. The spectrum analyzer is the most accurately calibrated measurement device. This picture shows a channel power measurement at power setting of 63 milliwatts at 2 feet distance.

Further reading: Does the Eco router reduce the peak power of the pulses?