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WSPR - 160m BAND - 17-21/09/2017
WSPR 160m (1.80 - 1.87MHz) band activity data recorded for a 4 day period 17-21/09/2017
Data from the WSPR web site relating to monitoring 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)

TX Only

SSN (Sun Spot Number): 25 - 39

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

 

This exercise was to compare the Multi-band dipole antenna with the same antenna configured as a  'T" Antenna used for operations on the 160m 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.

This antenna requires a counterpoise to work well and this will achieved at least initially by using the galvanized building roof to serve this purpose.  

 

WSPR data has been graphed using Excel. Horizontal axis = 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

VK6YSF WSPR Signal received by:VK2KRR The Rock, NSW Australia

Distance: 2832km

Grid location: QF34mr    

dBm: 37

  

WSPR data has been graphed using Excel. Horizontal axis = 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

VK6YSF WSPR Signal received by:VK6PK

Distance: 37km

Grid location: OF88ee   

dBm: 37

 

 

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