NARDA SRM-3006 Manual - E-Feld
9
ISOTROP – SINGLE AXIS
ALL-PURPOSE MEASURING ANTENNAS
Quick and reliable because they are non-directional:
The isotropic antennas detect the field strengths in
three mutually perpendicular directions, and the SRM
automatically calculates the resulting field strength.
Nevertheless, isotropic measurements are also possible
using the single-axis antennas if you use a tripod and
the antenna holder, which allows you to make suc-
cessive measurements in three mutually perpendicular
positions. The SRM supports this procedure by saving
the result for each of the three positions and then calcu-
lating the resulting field strength – without a PC.
All antennas and antenna cables are interchangeable
without affecting accuracy: The calibration data for
each item is saved in the antenna or cable itself and is
read out and applied automatically by the SRM Basic
Unit. At the same time, the SRM blocks the frequency
ranges for which the antenna has not been calibrated.
This avoids incorrect measurements.
For rapid, non-directional
measurements involving
latest generation wireless
technologies: Three-axis
(isotropic) E-field antenna
for frequencies from
420 MHz to 6 GHz
For rapid, non-directional
measurements, e.g.
covering mobile phone
frequencies: Three-axis
(isotropic) E-field antenna
for frequencies from
27 MHz to 3 GHz
The measuring antennas can be connected to the SRM Basic
Unit directly or via a cable. An auxiliary control cable allows
the Basic Unit to read out the measuring antenna and antenna
cable data automatically.
For precision measure-
ments in the mobile
phone frequency range:
Single-axis E-field
antenna for frequencies
from
27 MHz to 3 GHz
For precision electric
field measurements on
radio / TV transmitters
and industrial equipment:
Single-axis E-field antenna
for frequencies from
von
9 kHz to 300 MHz
For precision magnetic field
measurements in the nearfield of
radio / TV transmitters and industrial
equipment: Single-axis H-field
antenna for frequencies fromn
9 kHz to 300 MHz
E-FELD
H-FELD
For rapid, non-directional
magnetic field measure-
ments in the near-field of
radio / TV transmitters and
industrial equipment: Three-
axis H-field antenna for
frequencies from
9 kHz to 250 MHz
The single-axis antennas can be mounted on a tripod and
adjusted to produce isotropic results by making measurements
in three mutually perpendicular positions. Hand-held, they are
also ideal for locating maximum values within a room using the
so-called pendulum method.