Two 3000g balloons, or four 1500g balloons carrying student-built payloads from STEM, Aerospace Engineering, and Engineering classes at local High Schools.
In case of excessive cloud cover, the flight will be separated into four balloons as follows:
A 3000g balloon carrying student-built payloads from Evergreen High School and Westminster High School.
Frequency | Callsign | Type | Notes |
---|---|---|---|
144.905 MHz | KC0D-2 | Remote Release/DF | Secondary Beacon |
145.710 MHz | AE0SS-1 | Remote Release/DF | Tethered wireless release qualification |
144.340 MHz | AE0SS-12 | APRS/Digi EOSSA | Primary Beacon Timeslotted 0:27 & 0:57 |
A 3000g balloon carrying student-built payloads from Golden High School and Westminster High School.
Frequency | Callsign | Type | Notes |
---|---|---|---|
145.645 MHz | KC0D-1 | Remote Release/DF | Secondary Beacon |
144.340 MHz | AE0SS-13 | APRS/Digi EOSSX | Primary Beacon Timeslotted 0:10 & 0:40 |
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):
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:
Tactical | Call Sign | Name | Notes |
---|---|---|---|