ionosonde

An ionogram is a display of the data produced by an ionosonde.

An ionosonde, or chirpsounder, is a special radar for the examination of the ionosphere.

He developed an ionosonde for measuring Earth's ionosphere, and a ranging tellurometer.

There is an ionopsheric station housing an ionosonde.

A facility for atmospheric research, the Ionosonde Juliusruh is located nearby.

In 1955, ionosonde and geomagnetic facilities were installed at the Kodaikanal Observatory.

An ionosonde is used for finding the optimum operation frequencies for broadcasts or two-way communications in the high frequency range.

An ionosonde consists of:

Ionograms show the virtual heights and critical frequencies of the ionospheric layers and which are measured by an ionosonde.

An ionosonde sweeps a range of frequencies, usually from 0.1 to 30 MHz, transmitting at vertical incidence to the ionosphere.

The JORN ionosonde network is made up of vertical ionosondes, providing a real time map of the ionosphere.

In 1993, a digital ionosonde model IPS 42/DBD43 was commissioned enabling five minute or better sounding rates.

A NBS C3 analogue ionosonde was installed at the Observatory in 1955, for vertical soundings of the ionosphere.

Dr Trevor Wadley, invented the Tellurometer in 1957, the Wadley Loop and an Ionosonde.

The DSTO ionosonde network is not part of the JORN, but is used to further DSTO's research goals.

The ionosonde was set up in a refurbished bunkhouse by Oulton Walker and Tim Closs of the Hong Kong University Physics department in 1969.

Ionospheric research using ground based radio propagation techniques such as ionosonde, VLF/HF/VHF radio probing, a chain of magnetometer stations etc.

The landmark of the station is a 70 metre high grounded free standing steel framework tower, which was built in 1960/61 and which carries a cage aerial for the transmitter of the ionosonde.

The basic ionosonde technology was invented in 1925 by Gregory Breit and Merle A. Tuve and further developed in the late 1920s by a number of prominent physicists, including Edward Victor Appleton.

The TWIM has been constructed from global distributed ionosonde foF2 and foE data and vertical Ne profiles retrieved from FormoSat3/COSMIC GPS radio occultation measurements.

The Ionosonde Juliusruh is a facility of the institute for atmospheric physics near Juliusruh in northeastern Germany for sounding the ionosphere with radar systems in the short wave range (frequencies between 1 MHz and 30 MHz).