EOSS-351/352 Evergreen HS, Westminster HS, & Golden HS Flight

KCØRPS's picture
Submitted by KCØRPS on Sun, 11/12/2023 - 12:46

Two 3000g balloons, or four 1500g balloons carrying student-built payloads from STEM, Aerospace Engineering, and Engineering classes at local High Schools.

Flight Prediction

  • 11-07-2023Payload Plans Rev A posted 

In case of excessive cloud cover, the flight will be separated into four balloons as follows:

Flight Coordinator: 
KC0RPS
Event Date: 
Saturday, December 2, 2023 - 00:00 to 23:45
Alt Launch Date: 
Sunday, December 3, 2023
Launch Site: 
Deer Trail
Flights: 

EOSS-351 Heavy

A 3000g balloon carrying student-built payloads from Evergreen High School and Westminster High School.

Balloon Type: 
Totex 3000g Latex
Parachute: 
12 ft Rocketman with Remote Release Adam
Beacons: 
Beacons
FrequencyCallsignTypeNotes
144.905 MHzKC0D-2Remote Release/DFSecondary Beacon
145.710 MHzAE0SS-1Remote Release/DFTethered wireless release qualification
144.340 MHzAE0SS-12APRS/Digi EOSSAPrimary Beacon Timeslotted 0:27 & 0:57
Payload Plan: 
PDF icon EOSS-351 Heavy Rev A.pdf

EOSS-352 Heavy

A 3000g balloon carrying student-built payloads from Golden High School and Westminster High School.

Balloon Type: 
Totex 3000g Latex
Parachute: 
12 ft Rocketman with Remote Release Baker
Beacons: 
Beacons
FrequencyCallsignTypeNotes
145.645 MHzKC0D-1Remote Release/DFSecondary Beacon
144.340 MHzAE0SS-13APRS/Digi EOSSXPrimary Beacon Timeslotted 0:10 & 0:40
Payload Plan: 
PDF icon EOSS-352 Heavy Rev A.pdf
FrequencyList: 

EOSS Preflight Net @ 7 PM Mountain Time preceding night:
        •  449.225 MHz (-5 MHz Offset, 141.3 Hz CTCSS) Rocky Mountain Ham Radio (RMHAM) Repeater and EchoLink *CANONCTY* conference and the Fun Machine linked system
        • 146.940 MHz (-600 KHz Offset, 103.5 Hz CTCSS) Rocky Mountain Radio League (RMRL) Repeater if the RMHAM machine is down
        • 146.640 MHz (-600 KHz Offset, 100.0 Hz CTCSS) Denver Radio League (DRL) Repeater will serve as a backup to the backup repeater 

Launch Site:
        • 446.050 MHz Simplex  
        (Note that some radios assume these are repeater frequencies and attempt to put a 5 MHz offset in the transmit frequency automatically)

Track & Recovery Operations:
        Repeaters:
        • Primary FM Repeater - 449.450 MHz (-5 MHz Offset, 103.5 Hz Tone) 

        Simplex Frequencies:
        • 446.100 MHz Balloon #1 Field Simplex 
        • 446.150 MHz Balloon #2 Field Simplex
        • 446.200 MHz Balloon #3 Field Simplex
        • 446.275 MHz Car to Car drive out Simplex
        (Note that some radios assume these are repeater frequencies and attempt to put a 5 MHz offset in the transmit frequency automatically)

Skyhub links to primary FM repeater (449.450 MHz):

  • Limon (Cedar Point) - 447.650(-) MHz, 103.5 Hz
  • Hugo - 447.150(-) MHz, 103.5 Hz
  • Firstview - 447.600(-) MHz, 103.5 Hz

 Digital Mobile Radio (DMR):

 

The decision as to which talkgroup use will be made by the EOSS RF Coordinator on a per flight basis.

  • Rocky Mountain Wide Network – Talk Group 700 - Rocky Mountain Ham Radio has approval to the use "Wide" for flight operations.
  • Central Colorado Regional Network – Talk Group 720 - On occasion, EOSS may use the Central Colorado Regional Network (Talk Group 720).

2M Direction Finding Frequencies:

    • 144.340
    • 144.360
    • 144.905
    • 145.535
    • 145.645
    • 145.710
    • 145.765
Tactical Calls: 
TacticalCall SignNameNotes
Live Flight Tracking: