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Written: April 24, 2008 - page 30 / 31

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APPENDIX B:  QUICK-REFERENCE GUIDE

The following is a quick-reference guide on the steps to complete an upper-air observation using the RRS system.

Flight Time

Action

T = -45 Minutes

Startup the RWS software and warm-up the TRS.

T = -44 Minutes

Inflate balloon and prepare the flight train.

T = -20 Minutes

Prepare the radiosonde.

Soak the battery for 4 minutes.

T = -15 Minutes

If required, send Terminal Alerting Product (TAP).

Connect the battery to the sonde.

Let the battery warm-up for 5 minutes.

Fill-out the equipment, administrative, and current weather information in the RWS.

T = -10 Minutes

Baseline the radiosonde for 5 minutes.

T = -5 Minutes

Orient the TRS antenna in the balloon’s likely direction of travel.

Tie radiosonde to the flight train.

Check for GPS match prior to launch.

T = 0 Minutes

Launch balloon.

T = varies

Check release data.

QC incoming data.

T = varies

Flight level = 400hPa

Send FZL (RADAT).  Flight is legal.

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