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  2. Condor (options) - Wikipedia

    en.wikipedia.org/wiki/Condor_(options)

    A long condor consists of four options of the same type (all calls or all puts). [1] The options at the outer strikes are bought and the inner strikes are sold (and the reverse is done for a short condor). [1] The difference between the two lowest strikes must be the same as the difference between the two highest strikes. [1]

  3. Iron condor - Wikipedia

    en.wikipedia.org/wiki/Iron_condor

    The iron condor is an options trading strategy utilizing two vertical spreads – a put spread and a call spread with the same expiration and four different strikes. A long iron condor is essentially selling both sides of the underlying instrument by simultaneously shorting the same number of calls and puts, then covering each position with the purchase of further out of the money call(s) and ...

  4. Military communications - Wikipedia

    en.wikipedia.org/wiki/Military_communications

    A signal corps is a military branch, responsible for military communications (signals). Many countries maintain a signal corps, which is typically subordinate to a country's army. Military communication usually consists of radio, telephone, and digital communications.

  5. Iron butterfly (options strategy) - Wikipedia

    en.wikipedia.org/wiki/Iron_butterfly_(options...

    A long iron butterfly will attain maximum losses when the stock price falls at or below the lower strike price of the put or rises above or equal to the higher strike of the call purchased. The difference in strike price between the calls or puts subtracted by the premium received when entering the trade is the maximum loss accepted.

  6. Differential TTL - Wikipedia

    en.wikipedia.org/wiki/Differential_TTL

    Normal TTL signals are single-ended, which means that each signal consists of a voltage on one wire, referenced to a system ground. [3] The "low" voltage level is zero to 0.8 volts, and the "high" voltage level is 2 volts to 5 volts. A differential TTL signal consists of two such wires, also referenced to a system ground.

  7. Telegraphy - Wikipedia

    en.wikipedia.org/wiki/Telegraphy

    Telegraphy is the long-distance transmission of messages where the sender uses symbolic codes, known to the recipient, rather than a physical exchange of an object bearing the message. Thus flag semaphore is a method of telegraphy, whereas pigeon post is not.

  8. Optical telegraph - Wikipedia

    en.wikipedia.org/wiki/Optical_telegraph

    The signal itself consisted of a large pointer that could be placed into eight possible positions in 45 degree increments. A series of two such signals gave a total 64 code elements and a third signal took it up to 512. He returned to his idea in 1795, after hearing of Chappe's system.

  9. File:SDY FAA Diagram.pdf - Wikipedia

    en.wikipedia.org/wiki/File:SDY_FAA_Diagram.pdf

    This image or file is a work of a Federal Aviation Administration employee, taken or made as part of that person's official duties. As a work of the U.S. federal government , the image is in the public domain in the United States.