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WSPR - 40m
BAND - 24/02/2017
WSPR 40m
(7.0 - 7.3 MHz) band activity data recorded for a 24 hour period on the 24/02/2017
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Data from the WSPR web site relating to
monitoring and transmission from VK6YSF Northam Western Australia.
WSPR
Frequency: Dial 7.0386 MHz USB (occupied bandwidth 7.0400 -
7.0402 MHz)
Grid location: OF88II
Local Time = +8:00 hours (0:00 =
8:00AM)
Transmission Power 37 dBm (5Watts)
SSN (Sun Spot Number): 29
Equipment: TS-930 at
5W, Radio computer
interface
Antenna: Multi-band
dipole with T-Match tuner and 4-1
Current Balun
WSPR 40m
band activity data recorded for a 24 hour period on the 24/02/2017
showing SNR against UTC time, Vertical axis = dB below the
noise floor.
WSPR 40m
band activity data recorded for a 24 hour period on the 24/02/2017
showing distance in km against UTC time.
Vertical axis = km
WSPR data has been graphed using
Excel. Horizontal axis = UTC Time, Vertical axis = dB below the
noise floor.
K2SST HENDERSONVILLE, NC USA
Distance: 18140km
Grid location: EM85
dBm: 37
WSPR data has been graphed using
Excel. Horizontal axis = UTC Time, Vertical axis = dB below the
noise floor.
K5XL ARLINGTON, TX USA
Distance: 16841km
Grid location: EM12KP
dBm: 37
WSPR data has been graphed using
Excel. Horizontal axis = UTC Time, Vertical axis = dB below the
noise floor.
KB9AMG WAUKESHA, WI USA
Distance: 17478km
Grid location: EN52TX
dBm: 37
WSPR data has been graphed using
Excel. Horizontal axis = UTC Time, Vertical axis = dB below the
noise floor.
N7AIG TUCSON, AZ USA
Distance: 15563km
Grid location: DM42NG
dBm: 37
WSPR data has been graphed using
Excel. Horizontal axis = UTC Time, Vertical axis = dB below the
noise floor.
W0AY STEVENSVILLE, MT USA
Distance: 15423km
Grid location: DN26XO
dBm: 37
WSPR data has been graphed using
Excel. Horizontal axis = UTC Time, Vertical axis = dB below the
noise floor.
W4DJW GREER, SC USA
Distance: 18214km
Grid location: EM84UX
dBm: 37
WSPR data has been graphed using
Excel. Horizontal axis = UTC Time, Vertical axis = dB below the
noise floor.
WA9EIC DANVILLE, IL USA
Distance: 17638km
Grid location: EN60ED
dBm: 37
WSPR data has been graphed using
Excel. Horizontal axis = UTC Time, Vertical axis = dB below the
noise floor.
VK2RG SEFTON NSW Australia
Distance: 3205km
Grid location: QF56MC
dBm: 37
WSPR data has been graphed using
Excel. Horizontal axis = UTC Time, Vertical axis = dB below the
noise floor.
VK3MHY Melbourne Australia
Distance: 2666km
Grid location: QF22MG
dBm: 37
WSPR data has been graphed using
Excel. Horizontal axis = UTC Time, Vertical axis = dB below the
noise floor.
VK5UV Mintaro, South Australia
Australia
Distance: 2068km
Grid location: PF96IB
dBm: 30
WSPR data has been graphed using
Excel. Horizontal axis = UTC Time, Vertical axis = dB below the
noise floor.
ZL1WJQ Patumahoe NEW ZEALAND
Distance: 5288km
Grid location: RF72KT
dBm: 30
WSPR data has been graphed using
Excel. Horizontal axis = UTC Time, Vertical axis = dB below the
noise floor.
ZL3TKI CASHMERE CHRISTCHURCH NEW
ZEALAND
Distance: 5002km
Grid location: RE66HK
dBm: 20
WSPR data has been graphed using
Excel. Horizontal axis = UTC Time, Vertical axis = dB below the
noise floor.
HS0ZKM
THONBURI, BANGKOK THAILAND
Distance: 5332km
Grid location: OK03GR
dBm: 37
WSPR data has been graphed using
Excel. Horizontal axis = UTC Time, Vertical axis = dB below the
noise floor.
SWLTAS TASMANIA Australia
Distance: 2923km
Grid location:
QE37
dBm: 37
The below VOACAP
Online Circuit Reliability chart for a path between Northam
Western Australia and Tasmania for the 24/02/2017
shows similar agreement with the WSPR chart for SWLTAS
Tasmainia Australia.
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last revised 09 December, 2025
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