Pocket Weather Tracker Elements

Questions and Answers

What must be done first to ensure correct pressure values when using an altitude or QNH reference?

Select the altitude screen and set the known pressure if QNH is available. (correct)

Enter the reference altitude prior to adjusting the pressure settings.

Directly input the currently measured air pressure into the system.

Calibrate the wind impeller before adjusting pressure values.

Which step is unnecessary when measuring wind speed using the Pocket Weather Tracker?

Engaging the system with a rubber band when preparing for data download.

Standing outside facing the windward side for a specific duration.

Adjusting the wind impeller cover before use. (correct)

Utilizing the up/down buttons to change display modes.

When performing a reference altitude setting after obtaining a current altitude, which screen should be accessed?

BARO screen to enter the reference altitude. (correct)

Wind screen to calibrate wind measurements based on altitude.

Pressure screen to adjust the currently set QNH.

Data download screen to save current altitude readings.

How is reference pressure determined if an altitude value is known?

By entering the altitude value into the altitude screen which updates the pressure. Signup and view all the answers

What is an essential step in downloading data from a Pocket Weather Tracker to a computer?

Insert the PWT into an interface and secure it with a rubber band. Signup and view all the answers

Which measurements can the Pocket Weather Tracker provide regarding wind speed?

Cross wind, head wind, tail wind and general wind speed Signup and view all the answers

What is the correct procedure for calibrating the digital compass on the Pocket Weather Tracker?

Hold the device upright and rotate three times slowly at 10 seconds per turn Signup and view all the answers

When setting up the Pocket Weather Tracker, which setting is crucial for accurate barometric pressure and altitude readings?

Adjusting the station pressure based on altitude and atmosphere Signup and view all the answers

What should be done when the Pocket Weather Tracker is switched on for the first time?

Insert batteries and set the date and time after the initial power on Signup and view all the answers

What happens if the digital compass of the Pocket Weather Tracker is not calibrated properly after battery replacement?

Headwind screens will not display any value and other measurements may be incorrect Signup and view all the answers

Study Notes

Meteorological Elements Measured by Pocket Weather Tracker

Measures wind direction and speed
Records cross wind, head wind, and tail wind
Tracks dry bulb and dew point temperatures
Calculates wind chill effects
Assesses relative humidity levels
Evaluates heat stress conditions
Monitors barometric pressure
Measures altitude and density altitude

Setting up the Pocket Weather Tracker

Insert batteries securely using plastic shim to hold them in place
Set date and time during first use or battery replacement
Calibrate the digital compass after each battery replacement to ensure accurate readings:
- Power on and select compass calibration
- Hold upright and rotate slowly three times
- Calibration confirmation displayed
Set barometric pressure and altitude:
- Use station pressure to calculate altitude and adjust for accurate readings
- Input QNH or altitude as a reference for pressure calculations
After setups, system readiness confirmed.

Operating Procedure

Remove cover of wind impeller before use
Stand windward for three minutes to gather data effectively
Use up/down buttons to view different element readings

Data Downloading Procedure

Insert PWT into Interface and secure with rubber band
Connect RS-232 cable to computer's USB port
Start the computer and select the Kestrel Communicator program, installing from CD if necessary
Monitor uploading progress → takes approximately 2½ minutes
Save uploaded data on the computer for future reference and add remarks if needed

Loading and Clearing Data

Previously saved remarks displayed while loading saved data
Clear the Kestrel Tracker memory with confirmation request

Observations at Operational Location

Met Assistant uses Pocket Weather Tracker for current weather observations where conventional observatories are unavailable
Data is either downloaded directly to a computer or stored within the device
Regular maintenance recommended: clean with a soft cloth and check battery voltage frequently

Description

This quiz covers the various measurable elements of the Pocket Weather Tracker, including wind direction, temperature, humidity, and barometric pressure. Test your knowledge on how to interpret these meteorological factors and set up the device effectively. Ideal for weather enthusiasts and students of meteorology.