The Dynasonde at Tromsø
The Dynasonde is a digital HF sounder (see picture)
covering ca. 1-30 MHz. It is sometimes refered to as a frequency agile
sounder, or Advanced Ionospheric Sounder, hence the acronym FAIS
for the software which is used to run it. It can be run like an ionosonde
or in other modes such as fixed frequency soundings, even like a partial
reflection sounder. Spaced receiving antennas are used. A sample
ionogram may be found. The latest
and previous soundings may also be available. The Dynasonde does not
run continuously so do not be surprised if the latest is not so recent.
The Dynasonde is used in special ways together with the
Heating facility at times. This makes it a powerful HF radar as some
of our recent API
results show.
There is a list
of all soundings recorded since November 1992 when the computer was upgraded
to a PC.
A diary
of significant events for users is kept here. Note a DYNASONDE
WORKSHOP to be held in June 1998 in Utah
Some downloadable
stuff, useful only to insiders, is available. This includes documents
and comments from Bill Wright.
Read a description
of ionospheric sounding, as well as a history of the development
of the Dynasonde including a more detailed explanation of its design. A
complete list
of references of research performed with the Dynasonde exists.
How to use the Dynasonde
Tips
on starting and running the sounder exist, as well as instructions
to save the resulting DOS data files to Exabyte or DAT tapes. This archiving
system is being replaced with CD-ROMs.
Last updated Thursday, 22-Jan-98 09:31:49 MET
Related Sites:
Sounding from
Bear Lake, Utah
and a Quicktime movie
of soundings from Bear Lake.
The Swedish Ionosonde Network
The Tromso Digisonde
