LF: VLF in VO

[jcraig@mun.ca]

It was a nice but windy day today so the VLF TX was put on the air
for a quick test.  About 30 watts were fed to a 5:1 XFMR and a ~0.35H
tuning coil to the 100m wire at 10m height.  CW signals were heard
clearly at 2 km using a homebuilt DC RX and a PA0RDT miniwhip at 2 km.
The sigs could not be heard on the DC RX at 2.7 km and were much weaker
on the XH100/LF10 with 20m of wire strewn in the trees.  This is
a new distance record for me for audible reception at 8.277 kHz. The
ERP was about 3uW.

73
Joe VO1NA