Hello to all.
To night I’ll test for receiving a 2 ground rods antenna
on 136 USB, modes : OP 8, OP 32, WSPR 2 and WSPR 15, all at the same
time.
Distance between the two rods : 35 meters. Each rod : 50
mm diameter aluminium tube, 2 meters long.
A low power test permits to tune the antenna to 50 Ohms.
It needs an L network with a 275 µH serial coil and a 4.7 nF in parallel on the
antenna side.
Bi directional receiving antenna azimuth : UK / VE one
side and I / SV on the other side.
No preamplifier is necessary. RX is an
IC7200.
Hope to copy you !
73 from Andy F6CNI. JN19QB.
