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EOSS-228 and 229 Equipment Qualification Flights

This will be an exempt flight of two 1200g balloons to test and flight qualify new beacons.  Updated 9/26/16 2200: Qual Payload Frequencies updated.  Payload plans updated to Rev A.

Please see below for updated qual payload frequencies to program into your radios.  In addition to new equipment, the qualification payloads will carry some different antenna configurations for evaluation.  To facilitate this trackers may be asked to shift from 144.34 to receive the qual frequencies depending on position.  Ensure that you do not transmit APRS on the qualification payload frequencies, since this could interfere with evaluation.  Therefore you should ensure your beacon is off prior to QSY.  Trackers may also be requested to transmit DTMF, so review procedures for your radio.


Flight Coordinator: 
Event Date: 
Saturday, October 1, 2016 (All day)
Alt Launch Date: 
Sunday, October 2, 2016
Launch Site: 


This will be an EOSS equipment qualification flight to test and flight qualify new and repaired beacons.

Balloon Type: 
1200g Totex
147.42 MHzK0SCC-11APRS/DF/Cutter
144.34 MHzAE0SS-12APRSTimeslot at :15 and :45
145.57 MHzKC0D-11APRSQualification Payload
145.75 MHzKC0D-14APRSQualification Payload


This will be an EOSS equipment qualification flight for KC0D-12, K0SCC-15 and K0SCC-9

Balloon Type: 
1200g Totex
145.6 MHzKE0BMV-11APRS/DF/Cutter
144.34 MHzAE0SS-13APRSTimeslot at :00 and :30
144.95 MHzKC0D-12APRS/DFQualification Payload
147.555 MHzKE0BMU-11APRS/DFQualification Payload
145.52 MHzK0SCC-9APRS/DFQualification Payload

Preflight Net:

  • 147.225 MHz CRA Repeater (107.2 Hz Tone) 8 pm MDT preceding night
  • 146.940 MHz (103.5 HZ Tone) RMRL Repeater if the CRA machine is down
  • 146.640 MHz (100 Hz Tone) DRL will serve as a backup frequency

Recovery Operations:

  • 449.450 MHz RMRL (103.5 Hz Tone)
  • 448.225 MHz (141.3 Hz Tone) Testing
  • 446.100 MHz Balloon 1 Field Simplex
  • 446.150 MHz Balloon 2 Field Simplex
  • 146.550 MHz Backup field simplex

Launch Site Simplex: 446.050 MHz

HF - Possible ops: 7.235 LSB

TR Breakfast: 
Launch site will be at Windsor, so we can meet for breakfast at Johnson's Corner, I-25 Exit 254. More details later. All trackers should proceed to the launch site and disburse from there. An exception will be Chris, KBØYRZ who will be our tracking pioneer.
Tactical Calls: 
TacticalCall SignNameNotes
AlphaWAØGEH, WBØTUBMarty, TimTracker Coordination
BravoKBØYRZChris, JenTracker, Alternate Alpha
CharlieKCØRPS. WØNFWJim, GeorgeTrackers
DeltaKØSCCStephen, DarylLaunch Team, Trackers, Investigators
EchoKE7KCKTom, BrentLaunch Team, Trackers
FoxtrotKCØLJohnTracking from France, Predictions
GolfNØNDM, WØCBHLarry, BenjieLaunch Team, Trackers