Before 1965 only separate battalions and regiments were allowed to wear unit crests. Now virtually every unit in the army has a Distinguished Unit Insignia (Unit Crest). Unit Crests for Non-Uniform Wear. More and more we are asked to provide miniature unit crests. These are popular as inexpensive but valued presentation items.
F connector. From Wikipedia, the free encyclopedia. The F connector is a coaxial RF connector commonly used for over the air terrestrial television, cable television and universally for satellite television and cable modems, usually with RG-6/U cable or, in older installations, with RG-59/U cable.
A modular connector is an electrical connector that was originally designed for use in telephone wiring, but has since been used for many other purposes. Many applications that originally used a bulkier, more expensive connector have converted to modular connectors. telephone-system-standard RJ45 plug has a key which excludes insertion in an un-keyed 8P8C socket. The registered jack (RJ) standard specifies a different mechanical interface and wiring scheme for an RJ45S from TIA/EIA-568-B which is often used for modular connectors used in Ethernet and telephone applications.