Definitions for QNH
qnh

WikipediaRate this definition:0.0 / 0 votes

1. qnh

   The Q-code is a standardised collection of three-letter codes that each start with the letter "Q". It is an operating signal initially developed for commercial radiotelegraph communication and later adopted by other radio services, especially amateur radio. To distinguish the use of a Q-code transmitted as a question from the same Q-code transmitted as a statement, operators either prefixed it with the military network question marker "INT" (dit dit dah dit dah) or suffixed it with the standard Morse question mark UD (dit dit dah dah dit dit). Although Q-codes were created when radio used Morse code exclusively, they continued to be employed after the introduction of voice transmissions. To avoid confusion, transmitter call signs are restricted; no country is ever issued an ITU prefix starting with "Q". Codes in the range QAA–QNZ are reserved for aeronautical use; QOA–QQZ for maritime use and QRA–QUZ for all services. "Q" has no official meaning, but it is sometimes assigned a word with mnemonic value, such as "Queen" for example in QFE: Queen's field elevation, or "Query", "Question", "reQuest".

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1. QNH

   QNH stands for "Quoted North Sea Level" and it is a term used in aviation to refer to atmospheric pressure at sea level. It represents the barometric pressure at mean sea level in a specified area, typically measured in hectopascals (hPa) or inches of mercury (inHg). QNH is mainly used for setting the altimeter on an aircraft to ensure accurate altitude indications above mean sea level during flight.

WikidataRate this definition:0.0 / 0 votes

1. QNH

   QNH is one of the many Q codes. It is defined as, "barometric pressure adjusted to sea level." It is a pressure setting used by pilots, air traffic control, and low frequency weather beacons to refer to the barometric setting which, when set on an aircraft's altimeter, will cause the altimeter to read altitude above mean sea level within a certain defined region. Within United Kingdom airspace, these are known as Altimeter Setting Regions; these regions may be large areas, or apply only to the airfield for which the QNH was given. An airfield QNH will cause the altimeter to show airfield altitude, that is, the altitude of the centre point of the main runway above sea level on landing, irrespective of the temperature. In the United Kingdom the lowest forecast value of QNH for an altimeter setting region is called the "Regional Pressure Setting" and may be used to ensure safe terrain separation when cruising at lower altitudes. In some parts of the world a similar procedure is adopted and this is known as "Regional QNH" however this name has been modified to the above in the UK to avoid ambiguity.

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1. QNH

   What does QNH stand for? -- Explore the various meanings for the QNH acronym on the Abbreviations.com website.

How to pronounce QNH?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say QNH in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of QNH in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of QNH in Pythagorean Numerology is: 3

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References

1. ^ Wikipedia
   https://en.wikipedia.org/wiki/Qnh
2. ^ ChatGPT
   https://chat.openai.com
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=QNH