GRAPE 1 DRF (Doppler Radio Frequency Receiver for the Great Radio Amateur Propagation Experiment) is a citizen science instrument that receives HF time-standard signals (e.g., WWV, WWVH, CHU) to measure Doppler shifts caused by ionospheric dynamics. Data is collected by volunteers using software-defined radios and GPS-disciplined oscillators, recorded in Digital RF (DRF) format, and contributed to the HamSCI Personal Space Weather Station (PSWS) repository for space weather research.
The AA6BD is located at 35.063ºN, 85.125ºW. Instrument type is Grape 1 DRF. Antenna elevation is 200.0 degree. It records 10MHz Doppler Shift.
Version:2.7.0
GRAPE 1 DRF (Doppler Radio Frequency Receiver for the Great Radio Amateur Propagation Experiment) is a citizen science instrument that receives HF time-standard signals (e.g., WWV, WWVH, CHU) to measure Doppler shifts caused by ionospheric dynamics. Data is collected by volunteers using software-defined radios and GPS-disciplined oscillators, recorded in Digital RF (DRF) format, and contributed to the HamSCI Personal Space Weather Station (PSWS) repository for space weather research.
The AA6BD is located at 35.063ºN, 85.125ºW. Instrument type is Grape 1 DRF. Antenna elevation is 200.0 degree. It records 10MHz Doppler Shift.
| Role | Person | StartDate | StopDate | Note | |
|---|---|---|---|---|---|
| 1. | PrincipalInvestigator | spase://SMWG/Person/Nathaniel.Frissell | |||
| 2. | TechnicalContact | spase://SMWG/Person/William.Engelke | |||
| 3. | MetadataContact | spase://SMWG/Person/Kornyanat.Hozumi |