Flight Announcement for EOSS-189

Flight Coordinator: Thomas Londrigan - KE7KCK

LAUNCH DATE: June 27th, 2013 (wx delay +1 day)
LAUNCH TIME EOSS-187: 7:10 am MDT (13:10 UTC)
LAUNCH SITE: Deer Trail, CO (driving directions to Deer Trail Launch Site)  

EOSS Flight Day Frequencies:

Tracking and Recovery Frequencies

Preflight Net:

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

Tracking and Recovery Operations  

• Front Range and out east 
  • 448.450 MHz PPFMA (100 Hz Tone) 
• Field Simplex Frequencies   
  • 446.100 MHz simplex for field recovery operations
  • Note: Some radios insist on incorrectly placing a negative 5 MHz offset when selecting frequencies from the simplex portion of the 70 CM band. Check your radio and if this is the case. Consider programming in this simplex frequency to a memory channel as some radios have demonstrated the annoying habit of re-inserting the offset if you momentarily shift to a repeater then return to the simplex freq. Check the operation of your radio on this simplex freq to be ready for however your radio behaves.
  • 146.550 MHz Backup field simplex
• Repeater Coverage Pages - Listings of all repeaters available in the expected flight areas.
• There may be FRS operations see THIS PAGE for a list of channel numbers and their associated UHF Frequencies.

Ground Stations Frequencies

• Launch Site Simplex
  • 146.550 MHz
• HF - Possible ops
  • 7.235 LSB

EOSS-189 Balloon Payload Frequencies  

Beacons

• 147.420 MHz
  • CW ID: K0SCC-11

APRS

• 144.340 MHz
  • ID: KC0YA-11
  • DIGI: EOSS
  • Node: BALND2
  • APRS Time Slotted Every 30 seconds at 0:15 and 0:45
    • power up at 13 seconds past the GPS minute to properly slot telemetry
  • Telemetry once a minute
  • Sample Data

• 147.420 MHz 

• ID: K0SCC-11
• slotted 15 and 45 after the minute

Flight Systems: 

EOSS-189

Payload Configuration: 

• EOSS-189_Payload_Plan_RevC.pdf  

Payload Experiment Designer

PCDC = Pre-Collegiate Development Program

Experimenters are welcome to submit websites for linking or overviews which I will post on a page on the EOSS website.

Internet Gateway Stations:

Future I-Gaters:

EOSS is always in need of I-Gate stations. Check out the EOSS I-Gate page for information on how to participate and why we need you.

Current I-Gate Station:

If you are present at your iGate during the flight try and monitor the tracking and recovery frequency. The ground station likes to check the frequency prior to launch to find out if any stations are out there ready to igate the traffic onto the net for the FAA to monitor.

The prediction program used to determine the track of the balloon prior to flight can now output a prediction for the Rise, Closest Approach, and Set of the balloon for each of your stations. I have posted a prediction page for stations that I have been able to discover geographic coordinates. See the I-Gate prediction page for an example. The page will not be updated daily, however, it will be updated the evening prior to flight for I-gate planning purposes.

I have often been asked by iGaters when they should expect to either start receiving signals (AOS) or expect to see those signals disappear (LOS). This prediction page should answer all those questions for you.

Your Log Files

Our technical committee members would also request you open a log file and record all the packets you hear and forward onto APRS-IS. Whenever there is a technical failure of a package it is always helpful to have the most complete dataset possible to attempt to determine the cause of failure and possible fixes. After a flight send your data files to me (webmaster) and I will distribute them to the appropriate payload builders. They appreciate these logs even if all goes fine during a flight.

Tracking and Recovery Operations  

Breakfast

Breakfast will be at Patty Anns Caf� on the West side of Kiowa.  They open at 6:00 and are expecting us.

Google Map of the Eatery

A Yelp Review

Tracking and Recovery Grid

Tactical Call Signs