What parts of the world can be
received via HF radio right now in Dunfermline?
Monitor unavailable while building works being carried out at
One of our members has installed an HF radio receiver
which is controlled by a computer which itself is slaved to a highly accurate
atomic clock. The whole package is interfaced to the internet.
There is a chain of beacon transmitters in all
continents of the world and our monitoring station is constantly switching
between them and switching frequency bands too.
Receiver audio is fed into a sound card and Digital
Signal Processing software calculates the strength of the received signal.
results are shown to you here in real time.
Below you can see reception of the
IARU/NCDXF International Beacon Project
beacons today and the last couple of days.
The antenna is a 1m broadband active magnetic
loop located just above ground level and in the clear some 20m from the main station HF
transmitting antenna. Electronic design is based on that given during the
Four Days In May Symposium at the 1999 Dayton Hamvention by George Dobbs, G3RJV. Currently
monitoring 14.100 MHz, 18.110 MHz, 21.150 MHz, 24.930MHz and 28.200
World map showing location of beacons. Check tables at foot of
page to see which can be heard right now.