2024 TDOA Test Run

Purpose

This page was built to disseminate information regarding 'test runs' for the upcoming HamSCI TDOA (Time Delay of Arrival) Event.

Procedure

Steve, WA5FRF will be on the air from Texas, with several prearranged stations in a roundtable.
  • Other hams are welcome to join in to practice sending and receiving the waveform.
  • Those that can copy me can send me the .wav file for a quality check via email:  steve@cerwinconsulting.com
  • The documentation needed along with the recorded waveform are station location (6 digit grid square), date and time of day of the recording, and frequency.
  • Participants are encouraged to read the TDOA Operating Tips prior to the test dates.

Listen for WA5FRF, EL09nn, near San Antonio, Texas

Saturday, 30 March, 1600UTC      Initial Run - Join the roundtable QSO - Listen or transmit chirp signals, your choice

1600z-1615z 60 m, Ch 1 or if busy Ch 2.
1615z-1630z 40 m on or around 7265 and up
1630z-1645z 20 m on or around 14265 and up
1645z-1700z 15m on or around 21265 and up
 
If the listed frequencies are busy expect to move up the band to the first clear frequency.

Alternatives

Stations that do not have propagation to Texas are encouraged to set up their own dry runs in their own regions. Of course, they do not have to adhere to these dates but they should pick a time between 1600 and 1700 UTC to get propagation conditions representative of when the eclipse will be passing over their region.