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RT20A
Vaisala RT20A User Manual
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USER'S GUIDE
____________________________________________________________________
22
__________________________________________________________________
M010117EN-H
When using an analog radiosonde,
set radio frequency using the
Radio
view at this point.
7. The
Radiosonde properties
window presented in
Figure 10 opens.
Click
Next
.
0408-009
Figure 10
Radiosonde Properties
8.
Power up the radiosonde.
21
23
Table of Contents
Default Chapter
3
Table of Contents
3
Chapter 1 General Information
5
About this Manual
5
Contents of this Manual
5
Related Manuals
5
Feedback
6
Safety
6
General Safety Considerations
6
Recycling
6
Trademarks
6
License Agreement
7
Technical Support
7
Chapter 2 Product Overview
9
Introduction to Digicora and RT20A
9
Chapter 3 Operation
11
Getting Started
11
Standard RT20A Sounding Procedure
12
Step 1: Powering up the System
12
Setting Station Position
13
Step 2: Aligning the RT20A
15
Step 3: Starting a New Sounding
15
Step 4: Preparing the Balloon
15
Steps 5 and 6: Entering Calibration Coefficients
16
Rs92-D
16
Cable
16
Radio
19
Rs80-67
21
Step 7: Selecting Triggering Profiles
23
Step 8: Entering Station Data and Front Direction Angle
24
Steps 9 and 10: Tuning the Receiver and Setting RT20A in AUTO Tracking Mode
27
Sounding Status Displays
29
PTU Status
29
RDF Status
30
Step 11: Releasing the Balloon
32
Step 12: Tasks During Flight
35
Data Monitoring (Sounding Processor)
35
Sending Messages
35
Step 13: Ending the Sounding
35
Automatic Termination
35
Manual Termination
38
Chapter 4 Hand Terminal Rth21
41
General Information
41
Angle and Phase Display Modes
43
Tune Display Mode
44
Command Display Mode
45
Additional Commands of the Angle and Phase Modes
46
Antenna Home Position Command
46
Monitoring Tilt Angles
47
Setting the Display Back Light
48
Monitor PTU Command Display
48
Setting the Keyboard Light
49
RTH21 Keyboard Beep Command
49
Manual Driving Speed Command
50
Display Contrast Command
50
Calibration Command
51
Driving the Antenna to the Desired Position
51
Sethome Position Command
52
Set Zero Azimuth (Setzeroaz) Command
53
Additional Commands of the Telem. Mode
53
AFC Command Display Mode
53
Set Receiver Frequency Command Display Mode
54
Find Signal Command Display Mode
54
Keypad
55
Cursor Keys
55
Display Keys
55
Manual Start Key
56
AUTO/MANUAL Key
57
CLR (Clear) Key
57
4
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Vaisala RT20A Specifications
General
Brand
Vaisala
Model
RT20A
Category
Measuring Instruments
Language
English
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