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Digital High Frequency Analyser HF W 35C
The original printwork on the housing is in English, of course.
The HF component of the testing instru-
ment is shielded against interference by
an internal metal box at the antenna input
(shielding factor ca. 35 – 40 dB)
© Gigahertz Solutions GmbH, 90579 Langenzenn, Germany
Functions and Controls
1) Volume control for the audio analysis.
Active, when switch "Mode" is set to the
position "
"
2) Selector switch for signal evaluation.
Standard setting: "Peak".
3) The measurement range selected is indi-
cated by a small horizontal bar, the units
are µW/m².
4) Connecting socket for the antenna.
5) Measurement range selector switch
1999 µW/m² ("coarse")
199.9 µW/m² ("fine")
6) ON/OFF
switch.
In
middle
position .
. .., the audio analysis mode
is activated. In upper position
ting, you can additionally hear a signal
proportional to the field strength
strument has an "Auto-Power-Off func-
tion"
2
.
7) Signal fraction
3
: The switch-position
"Full" shows the total power flux density
of all signals in the respective frequency
range, the switch position "Pulse" only
shows the amplitude modulated (pulsed)
part.
Caution: Pre-amplifiers only to be used
in the switch position "Pulse"
1
For this feature the volume control should be turned
down completely because otherwise the sound mixes
with the "audio analysis". Similar to Geiger counter.
Revision 4.7 (October 2007)
Contents of the package
Instrument
Attachable antenna
Alkaline Manganese (AlMn) 9 V battery
(inside the meter )
Comprehensive instruction manual
Typical default settings are marked yellow.
Check the HF analyzer and its antenna by
switch-
.
set-
1
. This in-
2
The instrument switches off after about 30 minutes to
avoid unintentional discharge of the battery. If the
charge condition of the battery is too low, which is
indicated by "LOW BATT" on the display, the device
will switch off after only few minutes to avoid total
discharge.
3
Implemented as new feature from November 2007
following the instructions under
"Getting Started."
Page 2
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