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Data from the WSPR web site relating to
monitoring and transmission from VK6YSF Northam Western Australia.
WSPR
Frequency: Dial 3.5926 MHz USB (occupied bandwidth 3.5940 -
3.5942 MHz)
Grid location: OF88II
Local Time = +8:00 hours (0:00 =
8:00AM)
Transmission Power 37 dBm (5Watts)
SSN (Sun Spot Number): 22 - 38
Equipment: TS-930 at
5W, Radio computer
interface
Antenna#1: Multi-band
dipole with T-Match tuner and 4-1
Current Balun
Antenna#2: 'T"
Antenna configuration with T-Match tuner
Antenna#3: 'L"
Antenna configuration with T-Match tuner
This exercise was to
compare the Multi-band
dipole antenna with the same antenna configured as a 'T"
Antenna and configured as an 'L"
Antenna for operations on the 80m amateur band.
The main HF antenna is an All Band Doublet feed with ladder line and
matched with a T-Match antenna tuner including a 1:4 current balun
giving access to all HF band including the 160m band. With a view to
get better performance particularly on lower frequency bands this
antenna was reconfigured as a type of Marconi ‘T’ Antenna by
simple bonding the ladder line in the shack and connecting directly
to the T-Match antenna tuner and an ‘L’ Antenna by simple
connecting to one side of the ladder line in the shack and
connecting directly to the T-Match antenna tuner.
WSPR 80m
band activity data recorded for a 5 x 24 hour period between 24/09/2017~29/09/2017
showing SNR against UTC time, Vertical axis = dB below the
noise floor.
Antenna#1: Multi-band
dipole with T-Match tuner and 4-1
Current Balun
Antenna#2: 'T"
Antenna configuration with T-Match tuner
Antenna#3: 'L"
Antenna configuration with T-Match tuner
VK6YSF WSPR Signal received
by DL/PA0EHG Netherlands
Distance: 14002km
Grid location: JO32sq
dBm: 37
Antenna#1: Multi-band
dipole with T-Match tuner and 4-1
Current Balun
Antenna#2: 'T"
Antenna configuration with T-Match tuner
Antenna#3: 'L"
Antenna configuration with T-Match tuner
VK6YSF WSPR Signal received
by KD6RF GILMER, TX USA
Distance: 17033km
Grid location: EM22
dBm: 37
Antenna#1: Multi-band
dipole with T-Match tuner and 4-1
Current Balun
Antenna#2: 'T"
Antenna configuration with T-Match tuner
Antenna#3: 'L"
Antenna configuration with T-Match tuner
VK6YSF WSPR Signal received
by OH2EAT Helsinki Finland
Distance: 13082km
Grid location: KP20xw
dBm: 37
Antenna#1: Multi-band
dipole with T-Match tuner and 4-1
Current Balun
Antenna#2: 'T"
Antenna configuration with T-Match tuner
Antenna#3: 'L"
Antenna configuration with T-Match tuner
VK2EFM Kariong, NSW Australia
Distance: 3233km
Grid location: QF56pn
dBm: 23
Antenna#1: Multi-band
dipole with T-Match tuner and 4-1
Current Balun
Antenna#2: 'T"
Antenna configuration with T-Match tuner
Antenna#3: 'L"
Antenna configuration with T-Match tuner
VK5UV Mintaro, South Australia,
Australia
Distance: 2068km
Grid location: PF96ib
dBm: 27
Antenna#1: Multi-band
dipole with T-Match tuner and 4-1
Current Balun
Antenna#2: 'T"
Antenna configuration with T-Match tuner
Antenna#3: 'L"
Antenna configuration with T-Match tuner
VK6PK WOOROLOO, WA Australia
Distance: 37km
Grid location: OF88ee
dBm: 37
Antenna#1: Multi-band
dipole with T-Match tuner and 4-1
Current Balun
Antenna#2: 'T"
Antenna configuration with T-Match tuner
Antenna#3: 'L"
Antenna configuration with T-Match tuner
VK6YSF WSPR Signal received
by VK6PK
WOOROLOO, WA Australia
Distance: 37km
Grid location: OF88ee
dBm: 37
Antenna#1: Multi-band
dipole with T-Match tuner and 4-1
Current Balun
Antenna#2: 'T"
Antenna configuration with T-Match tuner
Antenna#3: 'L"
Antenna configuration with T-Match tuner
WSPR data has been graphed using
Excel. Horizontal axis = UTC Time, Vertical axis = dB below the
noise floor.
VK6YSF WSPR Signal received
by:VK2KRR The Rock, NSW Australia
Distance: 2832km
Grid location: QF34mr
dBm: 37
Antenna#1: Multi-band
dipole with T-Match tuner and 4-1
Current Balun
Antenna#2: 'T"
Antenna configuration with T-Match tuner
Antenna#3: 'L"
Antenna configuration with T-Match tuner
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