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Data from the WSPR web site relating to
monitoring and transmission from VK6YSF Northam Western Australia.
WSPR
Frequency: Dial 474.2 kHz USB (occupied bandwidth 475.6 - 475.8
kHz)
Grid location: OF88II
Local Time = +8:00 hours (0:00 =
8:00AM)
RX Only
SSN (Sun Spot Number): 29 - 32
Equipment: TS-930 at
5W, Radio computer
interface
Antenna#1: Active
Antenna V-1
Antenna#2: Active
Antenna V-2
This exercise was to
compare two versions of the PA0RDT compact active antennas.
Antenna#1 was the original designed slightly modified to take
advantage of more easily available transistors. Antenna#2 is the
PA0RDT compact active antennas constructed with originally specified
transistors.
WSPR
630m
band activity data recorded for 4 x 24 hour period on the 21/08/2017
- 24/08/017 UTC showing SNR against UTC time, Vertical axis = dB below the
noise floor.
Antenna#1: Active
Antenna V-1 (ORANGE)
Antenna#2: Active
Antenna V-2 (BLUE)
The below additional
pings are as result of VK4YB
reducing power from 5W to 0.5W at various time over the four days.
Antenna#1: Active
Antenna V-1 (YELLOW
=
27dBm 0.5W)
Antenna#2: Active
Antenna V-2 (Grey =
27dBm 0.5W)
WSPR
630m
band activity data recorded for 4 x 24 hour period on the 21/08/2017
- 24/08/017 showing distance in km against UTC time.
Vertical axis = km
Antenna#1: Active
Antenna V-1 (ORANGE)
Antenna#2: Active
Antenna V-2 (BLUE)
WSPR data has been graphed using
Excel. Horizontal axis = UTC Time, Vertical axis = dB below the
noise floor.
Antenna#1: Active
Antenna V-1 (ORANGE)
21/08/2017
- 22/08/017 UTC
Antenna#2: Active
Antenna V-2 (BLUE)
23/08/2017
- 24/08/017 UTC
VK3HP VIC, AUSTRALIA
Distance: 2679km
Grid location: QF21nt
dBm: 30 1W
WSPR data has been graphed using
Excel. Horizontal axis = UTC Time, Vertical axis = dB below the
noise floor.
Antenna#1: Active
Antenna V-1 (ORANGE =
dBm: 37)
(GREY = 27dBm 0.5W)
21/08/2017
- 22/08/017 UTC
Antenna#2: Active
Antenna V-2 (BLUE = dBm: 37)
(YELLOW =
27dBm 0.5W) 23/08/2017
- 24/08/017 UTC
VK4YB QLD, AUSTRALIA
Distance: 3523km
Grid location: QG62ku
dBm: 37 (5W) and
27dBm (0.5W)
WSPR data has been graphed using
Excel. Horizontal axis = UTC Time, Vertical axis = dB below the
noise floor.
Antenna#1: Active
Antenna V-1 (ORANGE) 21/08/2017
- 22/08/017 UTC
Antenna#2: Active
Antenna V-2 (BLUE)
23/08/2017
- 24/08/017 UTC
VK5ABN SOUTH AUSTRALIA
Distance: 2097km
Grid location: PF94lw
dBm: 33 (2W)
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