FF10
© Gigahertz Solutions GmbH
11
How to Measure with the Filter
To assess the
total exposure
in a given space
within a specific band of the Frequency Filter, tap
the touch switch of the desired frequency band
and follow the general instructions in the user
guide of your HF-Analyser.
To measure the
emission of a single RF source
,
preferably use a logarithmic-periodic directional
antenna and select “Peak Hold,” while slightly
panning the antenna toward the general direction
of the RF source for at least several seconds to
capture a reasonable test result. In the case of RF
signals with a high crest factor, we recommend
using a considerably longer measurement period.
Measurement Accuracy
Typical suppression of unwanted frequencies: min-
imum 40-60 dB.
Exception: GSM/LTE1800 – Here the selectivity vs.
DECT is better than 20-30 dB.
No insertion loss in the pass band!
Max. additional measurement error: 0 to +3 dB.
The correction factors specified for the respective
meters also apply to the filter for certain signals
(e.g. UMTS or LTE).
