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For most antennas the boresight is the axis of symmetry of the antenna. For example, for axial-fed dish antennas, the antenna boresight is the axis of symmetry of the parabolic dish, and the antenna radiation pattern (the main lobe) is symmetrical about the boresight axis. Most antennas boresight axis is fixed by their shape and cannot be changed.
Boresight may refer to: Antenna boresight, the optical axis of a directional antenna; Boresight (firearm), adjustments made to an optical sight, to align the barrel of a firearm with the sights; Boresight point, also known as gun harmonisation, the alignment of weapons in an aircraft; Project Boresight, a US radio direction finding system
A drawback of using the naked eye to boresight is that it can be difficult due to the tunnel vision and lack of brightness, especially with longer-barreled guns. A more advanced method of boresighting uses a collimator boresighter, an optical attachment similar to a scope sight, which fits onto the muzzle end of the barrel via a bore-diameter ...
The Chiappa Rhino is an example of a pistol with a low bore axis. The SIG Sauer P226 is an example of a pistol with a high bore axis.. The recoil from a fired cartridge (and the action movement) exerts a rearward impulse along the bore axis, which is commonly above the center of mass of the gun.
Boresight: Crude adjustments made to an optical firearm sight, or iron sights, to align the firearm barrel and sights. This method is usually used to pre-align the ...
The axis of maximum radiation, passing through the center of the main lobe, is called the "beam axis" or boresight axis". In some antennas, such as split-beam antennas, there may exist more than one major lobe. The other lobes beside the main lobe, representing unwanted radiation in other directions, are called minor lobes.
F10 bore sight, (small arms, and field artillery) F11 Setter Fuze, Bracket, M1916, M1916A1, M1916A2; F12 Targets, testing (small arms and field artillery) – parts; F13 Gunners Quadrant, M1918. F14 Compass, lensatic, M1918 – Parts and equipment, 16 September 1927; F15 Machine gun clinometer M1917 Parts and equipment
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