WSPR 160m (1.80 - 1.87MHz) band activity data recorded for a 9 day period 01-04/05/2017

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Data from the WSPR web site relating to monitoring and transmission from VK6YSF Northam Western Australia.

WSPR Frequency: Dial 1.8366MHz USB (occupied bandwidth 1.8380 - 1.8382 MHz)

Grid location: OF88II

Local Time = +8:00 hours (0:00 = 8:00AM)

RX Only

SSN (Sun Spot Number): 36

Equipment: TS-930 at 5W, Radio computer interface

Antenna:  Antenna#1 Active Antenna V-1 

               Antenna#2 Multi-band dipole with T-Match tuner and 4-1 Current Balun 

This exercise was to compare the compact active antenna with the main station antenna used for operations on the 160m amateur band.

WSPR 160m band activity data recorded for five 24 hour periods from the 01/05/2017 to 04/05/2017 showing SNR against UTC time, Vertical axis = dB below the noise floor. 2 x 24 hour day is shown for Antenna#1 Active Antenna V-1 and 2 x 24 hour day is shown forAntenna#2 Multi-band dipole with T-Match tuner and 4-1 Current Balun

VK7AM TASMANIA, AUSTRALIA

Distance: 2957km

Grid location: QE36nr

dBm: 37 (5 Watts)

WSPR 160m band activity data recorded for five 24 hour periods from the 01/05/2017 to 04/05/2017 showing SNR against UTC time, Vertical axis = dB below the noise floor. 2 x 24 hour day is shown for Antenna#1 Active Antenna V-1 and 2 x 24 hour day is shown forAntenna#2 Multi-band dipole with T-Match tuner and 4-1 Current Balun

VK4YB QLD, AUSTRALIA

Distance: 3523km

Grid location: QG62ku

dBm: 37 (5 Watts)

Conclusion:

The Signal to Noise Ratio appears to favour the main station dipole over the compact active antenna by approximately 8dB on this band.  

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Page last revised 05 May, 2025