Festival of Frequency Measurement 01 October 2019 Event : WWV Centennial UTC date : 01 October 2019 Beacon Frequency : 5 MHz Submitter : Martin H Potter, VE3OAT Data recorded at : 45.2525N 75.5910W City : Greely Region : Ontario, CANADA WARNING : Data recorded during 1330-2230 UTC considered NOT USEFUL/INVALID due to weak or non-existent signal reception. Data file : VE3OAT 45.25 -75.59 5 MHz.csv Data start time : 2019 Sep 30 23:56 UTC Antenna : 80/40 m band inverted-V dipoles with common feed Antenna orientation : NW-SE Receiver : Yaesu FTdx1200 transceiver Frequency reference : internal, undisciplined Receiver mode : USB IF bandwidth : 1800 Hz AGC : fast Digital Noise Reduction (DNR) : off Frequency measurement method : Reciever in USB mode tuned to 4999.000 kHz, audio output to computer sound card, frequency measured and recorded by Fldigi v4.1.06 software. Computer sound card : calibrated by Fldigi "WWV" function Observation : At 0345 UTC, rapid "flutter" fading of the signal was noted with smearing of the displayed signal frequency.