4-Square.co.uk

W1MK

Name                  Robye Lahlum
QTH                     45 Brookview Road, Boxford, Mass, 01921, USA
Grid                      FN42
Station info         Orion, 4-1000 homebrew amp.

4-Square Info
Bands 80m/180m, 40m/30m, 20m & 15m/12m

4 SQUARE ARRAY

Three Different Operational Configurations
1.80 Meter TX/RX 4 EL Array with Phasing
 1/0, 1/0, 1/-107, 1.1/111
2. 160 Meter TX 2 EL Array with Phasing
     1/0, 1/-118
3. 160 Meter RX 4 EL Array with Phasing
     1/0, 1/0, 1/-135, 1/135

80/160 Antenna
44 foot vertical, 4 top loading guys, 20 feet each, downslope angle approx 30 degrees.
Resonant at 3.4 MHZ, series cap for 80m operation, loading coil for 160m
80m Z11, 20 ohms ideal gnd, 160m Z11, 5 ohms ideal gnd
Band switching at base of antenna.

1.     2.     3.     4.

1.          80m/160m vertical
2.          40m vertical
3.          80m phasing box
4.          Rob, W1MK in the shack.