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PDT (short for Professional Digital Trunking or Police Digital Trunking) is an open industry standard for trunked radio system in China servicing police wireless communications and professional mobile radio. [1]
A plain-language radio check is the means of requesting and giving a signal strength and readability report for radiotelephony (voice) communications, and is the direct equivalent to the QSA and QRK code used to give the same report in radiotelegraph communications.
The QSK code is one of the earliest signal reporting formats and is a part of the Q code used for commercial radiotelegraph communication, appearing as one of the twelve Q Codes listed in the 1912 International Radiotelegraph Convention Regulations, and was later adopted by other radio services, especially amateur radio. The QSA code was ...
A Radio code is any code that is commonly used over a telecommunication system such as Morse code, brevity codes and procedure words. Brevity code
SINPFEMO code consists of the SINPO code plus the addition of three letters to describe additional features of radiotelephony transmissions. These codes are defined by Recommendation ITU-R Sm.1135, SINPO and SINPFEMO codes. [1] SINPO code is most frequently used in reception reports written by shortwave listeners. Each letter of the code stands ...
MFJ Enterprises was an American manufacturer specializing in a wide range of products for the amateur radio market. The company focuses on station accessories, including antenna tuners and antenna switching equipment. MFJ was founded in 1972 by Martin F. Jue. As of 2014, the company was recognized as the largest producer of amateur radio ...
The codes are intended for use by air, ground, sea, and space operations personnel at the tactical level. Code words that are followed by an asterisk (*) may differ in meaning from NATO usage. There is a key provided below to describe what personnel use which codes, as codes may have multiple meanings depending on the service.
A Plectron is a specialized VHF/UHF single-channel, emergency alerting radio receiver, used to activate emergency response personnel, and disaster warning systems. Manufactured from the late 1950s, through the late 1990s, by the now defunct Plectron Corporation in Overton, Nebraska , hundreds of thousands of these radios were placed in homes of ...