Vemco HR2, Руководство пользователя

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Figure 6-10: Clicking on a different section of the graph
C. Click and grab a
handle
and drag left or right to extend or reduce the range.
Figure 6-11: Grabbing a handle and dragging to reduce the range example
6.1.6 Noise Samples, Tilt, And Temperature (HR2, VR2Tx, VR2AR, And VR4-UWM Receiv-
ers Only)
The HR2, VR2Tx, and VR2AR provide information on Noise Samples (dB or mV) , Tilt (°) , and
Temperature (°C) . The VR4-UWM receiver provides information on Tilt (°) only. This is presented in
a graph, at the bottom of the
Selection
section.
Simply point the cursor somewhere along the graph, and an information "bubble" displays the date and
time of the data collection, along with the information you requested from your choices for the graph.
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For the HR2, you can view the Noise Samples by Type (just click your
choice): HR, PPM, or Combined HR and PPM. For the VR4-UWM, you can also view the
samples by Type (just click your choice): 69 kHz, 180kHz, or Combined 69
and 180 kHz. The VR2Tx and VR2AR receivers only measure and display PPM Noise.
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Noise samples are expressed in decibels (dB) (HR2 receivers) or millivolts (mV)
(VR2Tx and VR2AR receivers), and are always displayed in the graph.
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The noise scale appears on the left side of the graph.
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Additionally, depending on the receiver, you can view the
Tilt, Temperature, or None
(just click your choice).
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Tilt is expressed in degrees (°) from vertical (0°). Available for HR2, VR2AR, VR2Tx,
and VR4-UWM only.
o
Temperature is expressed in degrees Celsius (°C). Available for HR2, VR2AR, and
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6.1 Visualizing Data