Made in Germany
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© Gigahertz Solutions GmbH
ment). Releasing the “clear” button will trigger the period during
which the maximum value is to be determined.
In the “Peak hold” mode, the sound signal remains proportional to
the currently measured power flux density. This helps finding the
absolute maximum within the measured area.
The droop rate, at which the held peak value decreases over time can be controlled
with the “+” and “-” switch. Even after several minutes, the value displayed is still
within the specified tolerance. Nevertheless, the display should be checked fre-
quently in order to obtain the most accurate readings. In the case of very high and
short signal peaks, the holding capacity of the “Peak hold” function needs several
recurrences (less than a second) to fully load.
Setting:
“VBW”
For the HFW59D, “VBW Maximum” is the standard setting with
which the most common sources of radiation within the meter fre-
quency range, i.e.
Radar (a short beep every few seconds) as well as
Wireless LAN in standby mode (a very quick “tuc-tuc-tuc-…”)
are displayed directly, without the need of any conversion factors.
In the process of up- and downloading data via wireless LAN or
within the upper LTE band, the so called crest factors need to be
additionally taken into consideration. In this case, the displayed val-
ue needs to be taken by 4 (or doubled twice). With the help of the
audio analysis, these signals can easily be distinguished from the
radar signals
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.
Information on radar measurements:
For air and sea navigation, a radar antenna slowly rotates around its
own axis, thereby emitting a tightly bundled “radar ray”. Even with
sufficient signal strength, this ray can only be detected every couple
of seconds, for a few milliseconds. This requires special measure-
ment technology.
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Users of HF59B please note the different recommendations regarding the VBW settings
