User Manual

©2012 CORNET Microsystems Inc., 1400 Coleman Ave #C28 Santa Clara, CA 95050 USA Tel: [phone]
www.cornetmicro.com ED78SV1.2 10/2/2013
NOTE:
 Most high frequency RF antenna such as Mobile phone base station is vertical polarized
(in vertical direction), therefore while in RF mode, the ED78 is normally used in vertical
direction. For LF mode, the LF sensor is located in the top right hand of the ED78 and
the meter is normally used in Horizontal position in LF mode. Please rotate the meter to
find the maximum reading direction in either case. The maximum reading will also
increase as you approach the source. ED78 can be used to find the location of signal
source.
 Most of modern communication devices (Mobile phone, Wireless LAN, Wi-Fi, etc.,) use
digital RF burst signals. When measuring this type of signals, several LED lights will
blinking at the same time. this is normal and it can be used as an indication of burst type
of RF signals. For continues waves (AM/FM) signals, the LED light will be stable. ED78
measures the peak power density of the signal with very fast sampling time. It is more
accurate than the needle style of readout which only shown the average value of signal
power most of the time.
 Electromagnetic wave field strength/power density reduces very fast with distance
(distance square), keep a good distance from the high frequency RF signal source can
reduce the high frequency radiation effect. Alumina foil or window sun reflector film
(silver color) can be used as a effective and low cost shielding material for most of RF
radiations.
 ED78 is designed for quick living environment RF radiation evaluation and is for reference
use only. Official RF safety radiation measurement procedure is complicate and should
be handled by trained technical person with lab instruments. Safety range standard
listed below is for reference only. ED78 is not a medical instrument, Please do not use
it in medical, legal or other related applications.
 The “SENSOR” mark on the bottom of the back enclosure cover is not used in ED78
 ED78 is designed for home and personal use, It is not for commercial rental purpose.
 The audio sound output of the sound function is the demodulated RF signal, it is good for
AM and modern digital RF signals (pulse/burst ) detection, it is not for FM or constant
amplitude RF signals or LF modes. it is an excellent tool for RF signal type indication.
(different RF signal such as Wifi, GSM, DECT, ….etc.,all has different sound frequency
signature of the demodulated RF signal) and for very low level signal dectection.
Specification
Sensor type: Electric field sensor and Magnetic field sensor
Frequency range & Sensitivity: RF: 100MHz to 8GHz
(-60dBm to +5dBm),(0.5uw/m2 to 1.8w/m
2
),
(14mv/m to 26.2v/m)
LF1: 50Hz to 10KHz (0.1uT to 60uT)/(1mG to 600mG)
LF2: 50Hz to 1KHz (0.01uT to 1uT)/(0.1mG to 10mG)
RF Peak power measurement: 0.5uw/m² to 1.8w/m²
Display type: digital LCD graphic display
Unit of measurements: dBm, mw/m², v/m, uT, mG
LCD back light: 15 seconds auto-off and manual on/off control
Display of data: LCD 4 and 5 digit, 8 LED color segment,
Moving Histogram(level/time) of previous 30 recorded
data, Analog segment bar
Data update rate: Sampling rate: 3500/sec. Display update rate: 2/sec.
Error rate: +/- 3.5dBm
Functions: Hold, Max, Average, Sound signature, Alarm,
Sound & Alarm: Audio Sound ON/OFF control, programmable Alarm
triggering level
Safety standard indication: 3 safety range indication by 3 Red LED
Battery used: 9V alkaline battery, (not included)
Battery life: >20 hours
The European Community provided general guidelines in its Council
Recommendation of July 1999.1 ICNIRP published similar guidelines in
April 1998.2 Table I gives a sampling of the international and national field-
strength limit values for the general public and continuous exposure (for
Reference only !)
950Mhz 1850Mhz
1W/m2 = 1000mW/m2, 1mW/m2 = 1000uW/m2 = 0.1uW/cm2
1uW/m2 =0.001mW/m2 , 1uT = 10mG
International
Council Recommendation 1999/519/EC
42 V/m
(4.75W/m
2
)
59 V/m
(9.25W/m
2
)
International
ICNIRP Guidelines, April 1998
42 V/m
(4.75W/m
2
)
59 V/m
(9.25W/m
2
)
Austria
Ö NORM S1120
49 V/m
(6.33W/m
2
)
61 V/m
(10W/m
2
)
Belgium
Belgisch Staatsblad F.2001-1365
21 V/m
(1.18W/m
2
)
30 V/m
(2.31W/m
2
)
Germany
26. Deutsche Verordnung
42 V/m
(4.75W/m
2
)
59 V/m
(9.25W/m
2
)
Italy
Decreto n. 381, 1998
6 V/m
(0.1W/m
2
)
20 V/m
(1W/m
2
)
6 V/m
(0.1W/m
2
)
20 V/m
(1W/m
2
)
The Netherlands
Health Council
51 V/m
(6.92W/m
2
)
83 V/m
(18W/m
2
)
Switzerland
Verordnung 1999
4 V/m
(0.04W/m
2
)
6 V/m
(0.1W/m
2
)
United States
IEEE C95.1
49 V/m
(6.33W/m
2
)
68 V/m
(12W/m
2
)
China
Draft: National Quality Technology
Monitoring Bureau
49 V/m
(6.33W/m
2
)
61 V/m
(10W/m
2
)
Japan
Radio-Radiation Protection Guidelines,
1990
49 V/m
(6.33W/m
2
)
61 V/m
(10W/m
2
)