Power Supply - Gigahertz Solutions HF W 35C Instruction Manual

Digital High Frequency Analyser HF W 35C
Further Analysis /
Optional Accessories:
An auxiliary attenuator to increase or de-
crease the range of power densities which
can be processed with this instrument is un-
der development, and two pre-amplifiers for
the amplification by a factor of 100 and 1000
are already available (please see above).
Instrument for lower frequencies
For measurement of signal frequencies
above 27 MHz (including: CB radioing, ana-
logue and digital TV and radio TETRA etc.)
we offer the instruments eHFE35C and
eHFE59B.
Instrument for yet higher frequencies
An instrument up to 10/12 GHz is under de-
velopment for 2007.
Available for low frequencies:
Electro smog is not limited to the Radio Fre-
quency range!
Also for the low frequency range such as
power (distribution and domestic installa-
tions) including their higher harmonics we
offer a broad range of affordably priced in-
struments with high professional standards.
If you are interested please do not hesitate to
contact us. Contact details can be found at
the end of this brochure.
© Gigahertz Solutions GmbH, 90579 Langenzenn, Germany

Power Supply

Changing the Battery
The battery compartment is at the back of
the analyzer. To remove the lid, press on the
grooved arrow and pull the cap off. The in-
serted foam will press the battery to the lid,
thus avoiding it to rattle. Therefore, when
pushing back the lid you will note a little re-
sistance.
Auto-Power-Off
This function conserves energy and extends
the total operating time of the battery.
1. In case you have forgotten to turn OFF
the HF analyzer or it has been turned ON
accidentally during transport, it will shut
off automatically after 40 minutes of con-
tinuous use.
2. If "low batt" appears vertically between
the digits in the center of the display, the
HF analyzer will turn OFF after 3 min in
order to avoid unreliable measurements.
In that case change the battery.
Revision 4.7 (October 2007)
Remediation and Shielding
Please call us or send us an e-mail.
We will assist you in any shielding project
you might have.
The shielding effect of the various materials
is stated normally in "dB", e.g. "20 dB".
Conversion of shielding effect into reduction
of power density
„10dB" is measured value divided by 10
"15dB" is measured value divided by ~30
"20dB" is measured value divided by 100
"25dV" is measured value divided by ~300
"30dB" is measured value divided by 1000
etc.
Please be aware of the manufacturer's notes
about the normally achievable shielding ef-
fects, as 100 % shielding is almost always
impossible. Partial shielding reduces the at-
tenuation considerably. That is why shielding
of seemingly radiation tight adjacent areas is
highly recommended.
Page 11