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Getting Started - Gigahertz Solutions HFW59D Bedienungsanleitung

Hf-analyser
Vorschau ausblenden Andere Handbücher für HFW59D:
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Getting Started

Connecting the Antenna
Screw the SMA angle connector of the antenna connection into the
uppermost right socket of the HF analyser. It is sufficient to tighten the
connection with your fingers. (Do not use a wrench or other tools be-
cause over tightening may damage the threads).
Normally, the sources of radiation in the frequency range subject to
measurement are vertically polarised. Therefore, the antenna should
ideally be aligned as shown in the photo below:
Important: Do not sharply bend or twist the antenna cables.
For a horizontal antenna alignment please do not twist the cable itself,
but turn the whole measurement device into the right direction. With
the help of the LED at the antenna tip you can control the connection
of the antenna cable to the device.
Please do not touch the antenna cable during measurement.
Further notes to the antenna
The SMA connection between the antenna and the meter is the high-
est quality industrial HF connection of this size. Furthermore, the
semi-rigid antenna cable implied has excellent parameters for the fre-
quency range in question. It should not be bent more often than nec-
essary. The special implementation of a second "dummy" antenna ca-
ble is the subject matter of one of our pending patents, and compen-
sates the internal weakness of the "simple-log-per-antenna" which is
based on conductor plates. These are also sensitive to frequencies
below the specified bandwidth, thus possibly falsifying measurements
in the principal direction. The antenna supplied with the meter can
suppress these disturbances by approx. 15 to 20 dB (in addition to the
40 dB of the internal high pass filter).
Checking Battery Status
If the "Low Batt" indicator appears in the center of the display, meas-
urement values are no longer reliable. In this case, the battery needs
to be charged.
If there is no display at all upon switching the analyser on, check the
connections of the rechargeable battery. If this won't help, try to insert
a regular 9 Volt alkaline (non-rechargeable) battery.
When using a non-rechargeable battery, never connect the ana-
lyser to a charger / AC-adaptor!
20
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