The QNH for a specific airfield should ensure that the altimeter would read zero when on the ground.
The main difference between altimeter and cabin altimeter is the place where they take their pressure: Altimeter takes the pressure from static ports, while cabin altimeter takes it's pressure from the cabin.
To set altitude QNH, first, obtain the current altimeter setting from a reliable source, such as air traffic control or a weather report. Then, adjust the altimeter in your aircraft to match the QNH value, which is typically given in inches of mercury or hectopascals. This ensures that your altitude readings are accurate relative to sea level and helps maintain safe vertical separation from other aircraft. Always verify the setting before takeoff and during flight as conditions can change.
Analog is displayed in a clock like instrument digital is shoun in numbers
An altimeter determines the height by the difference in air pressure. The higher you go the thinner the air becomes (lower air pressure). A skydiver will zero his altimeter on the ground, and as the skydiver increases altitude the altimeter can determine the distance traveled by determining the difference in air pressure.
QNH, or altimeter setting, is a measure of atmospheric pressure adjusted to sea level. It is used by pilots to set their altimeters accurately for the local pressure conditions, ensuring safe altitude awareness during flight.
QNH is the air pressure at sea level in the aviation region in which you are flying QNE is your assumed height above sea level, based on an assumed air pressure at sea level of 1010.3 millibars
They are one in the same. They use radio waves for RAdio Detection and RAnging. Radar is an acrynom, why they flip flopped the R and the A in ranging is beyond me.They're both the same thing
Google "QNH" JCF
QNE is pressure altitude, the pressure as if it were ISA conditions regardless of actual conditions, used above transition altitude. QNH is the actual pressure reduced to sea level.
true altitude at field elevation.
My handheld GPS instrument has a barometric altimeter in it also.