WWV 5 Mhz reception in Port Huron, Michigan, USA on 1/October/2019

Festival of Frequency Measurement 1 October 2019

Event:  WWV Centennial

UTC date:  2019/October/01

Beacon frequency: 5 MHz

Michael Naruta - AA8K

Location:  42.9960515N 82.4643026W 156.417m, grid EN82sx, near Port Huron, Michigan, USA, Zip code 48060.

Start time:  15 minutes before 1/October/2019 UTC

End time:  2 hours after 1/October/2019 UTC

Antenna:  BiggIR vertical, 10 meters high, with 33 ground radials, each 10 meters long.  Omni-directional.

Receiver:  OpenHPSDR Mercury with Alexis bandpass filter. 

Software:  PowerSDR OpenHPSDR mRX PS v3.38 (6/9/16), Virtual Audio Cable 4.13.0.5811, Fldigi 4.1.08, MS Windows 10 Home 1809.

Frequency reference:  Trimble Thunderbolt GPSDO.  Mercury locked to reference.  Personal computer sound card not locked to reference and may have a higher error.  Devices located in a basement that does not experience wide temperature swings.

Measurement procedure:  PowerSDR set for USB with a frequency of 4.999 MHz.  Bandwidth filters set to 950 Hertz and 1050 Hertz, yielding a 100 Hertz bandwidth centered on the 1,000 tone generated by the WWV 5 MHz carrier.  Some difficult initially configuring VAC and Fldigi.  Normally use Spectrum Lab.  Fldigi ran in 'frequency analysis' with data collected into a .csv file.