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Audio Frequency Analysis
Many different frequencies within the frequency band between
700 MHz and 2.7 GHz, are being used by many different services.
The audio analysis
helps to identify the source of a given HF radiation signal.
Sounds and signals are very difficult to describe in writing. The
easiest way to identify them is to listen to the sound samples of
the different signal sources, which can be found as MP3 files on
our homepage. Alternatively, you can approach known HF
sources very closely and listen to and memorise their specific
signal patterns.
"Marking" of unpulsed signals:
Un-pulsed signals or signal portions by their very nature are not
audible in the audio analysis and therefore easily missed. For that
reason, in our meters they are marked by a uniform "rattling" tone,
with its volume proportional to its contents of the total signal. This
"marking" has a frequency of 16 Hz (please see sound samples
on our website).
For more in-depth analyses
Gigahertz Solutions offers:
Attenuators for expanding the designed range of the analysers
upwards for strong sources of pollution.
Instruments for lower HF: For measurement of signal frequen-
cies above 27 MHz (including: CB radioing, analogue and digital
TV and radio TETRA etc.) we offer the instruments HFE35C and
HFE59B.
Instruments for HF up to 6 GHz / 10 GHz: For analyses for yet
higher frequencies (up to abt. 6 GHz, including WLAN, WIMAX
and some directional radio sources and aviation radar), we offer
the HFW35C (2.4-6 GHz). For higher frequencies up to 10 GHz
(Radar) the HFW59B is available.
Instruments for low frequencies: Electrosmog is not limited to
the Radio Frequency range! Also for the low frequency range
such as power (distribution and domestic installations) and rail-
ways including their higher harmonics we offer a broad range of
affordably priced instruments with high professional standards.
Please refer to our homepage for further information.
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Turn the volume control for the audio analysis fully to the left („-„) before
switching the meter on, as the sound might be very loud at high field strength
levels.
© Gigahertz Solutions GmbH
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of the modulated portion of the HF signal
Made in Germany
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