Hamcom Presentation: “Low and Medium Frequency Receive Antennas” NO3M / WG2XJM (PDF)

160m-antennas

Receive antennas (current):

NE – Broadside array of three 1000 ft beverages, spaced 300 ft between elements

E – Broadside array of two 1000 ft beverages, spaced 300 ft between elements

SE – Broadside array of two 1000 ft beverages, spaced 300 ft between elements

S – Broadside array of two 1000 ft beverages, spaced 300 ft between elements

SW – Broadside array of two 1000 ft beverages, spaced 300 ft between elements

W – Broadside array of two 1000 ft beverages, spaced 300 ft between elements

NW – Two element echelon end-fire array, 1200 ft elements, 100 ft staggering, 15 ft spacing, 130 deg phasing

N – Two element echelon end-fire array, 1200ft elements, 100ft stagger, 15 ft spacing, 130 deg phasing

Eight Circle Array – (8) 20 ft elements, each with (4) 20 ft top loading wires.  Base loading accomplished with T94-3 torroid inductors (approx 31 uH) to resonate verticals at 1828 kHz.  W9RE 8-Circle switching controller driven with NO3M remote output switching board (control signals received from shack via RS-485 serial network).