Pressure altitude is whatever altitude your altimeter would read if you set 29.92 Hg in the Kollsman window (the small portion of the altimeter that shows the barometer setting.) Pressure altitude ...

The altimeter also has an adjustment knob and Kollsman window to allow for the altimeter ... with data from the left set of ...

The ALT-8000, reportedly the world’s first RF-based portable radio altimeter flightline test set, is a lightweight universal test set for 4.3-GHz frequency modulated continuous carrier wave ...

Aeroflex claims that its ALT-8000 is the world's first RF-based portable radio-altimeter flightline test set. The universal test set provides full RF loop testing for 4.3-GHz FMCW (frequency-modulated ...