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Apparatus for Photographically recording heights and critical frequencies of regions in the Ionosphere.
Developed by the National Physical Laboratory, manufactured to Admiralty requirements as equipment Type 249.
Ionosonde used in the early 1940's
- Albums
- Keywords
- 249 Ionosonde
- File
- UKSSDC_DP-P-4-16-0005-0.jpg
- Copyright
- Open Government Licence
- Image id
- 186
- Posted on
- Wednesday 19 October 2022