EMCO’S LOOP ANTENNAS AND MAGNETIC FIELD COILS
provide for a wide range of magnetic field testing from 20 Hz
to 30 MHz. Some models include active electronics for
impedance matching, consistent linear antenna factors, and
signal attenuation. Most include a balanced Faraday shield to
reduce response to E-Fields for pure magnetic field measurements.
Options like our remote status indicators add
convenience. Whether used individually or as a set, our loop
antennas provide an efficient and economical solution to
magnetic field measurement.
EMCO offers five models of loop antennas. Every loop
antenna is individually calibrated in accordance with IEEE-291
Section 2.3.1 methods, using NIST traceable equipment. By
knowing the actual antenna factors and performance characteristics
of an antenna instead of typical data, you can more
accurately calculate field strength in your tests. The performance
of the 7600 Series is calculated from theory. Because of
precise antenna dimensions and low frequency range, the
calculated performance of these models is much more accurate
than could be measured.
EMCO Loop and Coil Features
Saturation Indicator
EMCO’s loop antenna Models 6502 and 6507 have saturation
indicators. If this indicator is lit, the input signal is exceeding
the saturation level of the internal preamplifier. During all
EMC tests, measurements taken with a signal level that exceeds
the limits of the antenna could result in erroneous data. To
prevent this, the saturation indicator lights, alerting you to
lower the incoming signal. Model 6502 can receive signals up
to 5 volts per meter before this indicator is activated, and Model
6507 can receive signals up to 10 volts per meter before the
saturation indicator is activated.
Remote Monitor Option
An optional remote monitor is available that allows you to view
the power and saturation indicators from up to 10 m (32.8 ft)
away. See “Options” for additional information.
Quality Construction
All loop antennas and coil bases are constructed of lightweight
aluminum, except Models 7603 and 7605 which are constructed
of linen phenolic. This construction provides
durability and reliability for years of trouble-free indoor and
outdoor service. The base of the loop antennas, excluding
Models 7603 and 7605, accept standard 1/4 in x 20 threads
from an EMCO or other tripod.