|
Yaesu VX-5R
The Yaesu VX series is a line of two sequences of compact amateur radio handheld transceivers produced by Yaesu. There is a line of ultra-compact lower-power dual-band (2 m and 70 cm) transceivers that started with the VX-1R and was later updated with the VX-2R and VX-3R. There is also a line of 5W tri-band transceivers that started with the VX-5R and was later updated with the VX-6R, VX-7R and VX-8R. Common features The VX line of radios all have features common to most modern hand held amateur radios: * CTCSS and DCS decode/encode and European Tone Burst * RF Squelch capability * Selectable deviation (wide/narrow) * DTMF transmission and memories. In addition, the VX line has features available on only some other brands: * Receive coverage in AM, NFM, and WFM * Wide-band receive coverage, from 500 kHz up to 999 MHz * User-selectable 10 dB attenuator * Ultra-compact size * Channel memories (including frequency, CTCSS/DCS squelch tone and mode, repeater offset, alp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amateur Radio
Amateur radio, also known as ham radio, is the use of the radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communications. The term "amateur" is used to specify "a duly authorised person interested in radioelectric practice with a purely personal aim and without pecuniary interest;" (either direct monetary or other similar reward) and to differentiate it from commercial broadcasting, public safety (such as police and fire), or professional two-way radio services (such as maritime, aviation, taxis, etc.). The amateur radio service (''amateur service'' and '' amateur-satellite service'') is established by the International Telecommunication Union (ITU) through the Radio Regulations. National governments regulate technical and operational characteristics of transmissions and issue individual station licenses with a unique identifying call sign, which mus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transceiver
In radio communication, a transceiver is an electronic device which is a combination of a radio ''trans''mitter and a re''ceiver'', hence the name. It can both transmit and receive radio waves using an antenna, for communication purposes. These two related functions are often combined in a single device to reduce manufacturing costs. The term is also used for other devices which can both transmit and receive through a communications channel, such as ''optical transceivers'' which transmit and receive light in optical fiber systems, and ''bus transceivers'' which transmit and receive digital data in computer data buses. Radio transceivers are widely used in wireless devices. One large use is in two-way radios, which are audio transceivers used for bidirectional person-to-person voice communication. Examples are cell phones, which transmit and receive the two sides of a phone conversation using radio waves to a cell tower, cordless phones in which both the phone handset and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yaesu VX-5R Model
is a district in Chūō, Tokyo, Japan, located north of Ginza, west of Nihonbashi and Kyōbashi, and adjacent to the east side of Tokyo Station. The Yaesu exit of this station, which faces Nihonbashi, is recent and primarily provides access to the Shinkansen platforms. History The area was named after the 17th century Dutch adventurer Jan Joosten van Lodensteijn, or simply Jan Joosten. For his services to Tokugawa Ieyasu he was granted a house in Edo (now Tokyo) in an area that came to be called "Yayosu Quay" after him — his name was pronounced ''yan yōsuten'' in Japanese (short version: Yayōsu (耶楊子)) — the Yaesu side of Tokyo Station is also named for him. Yaesu Avenue has a monument dedicated to Jan Joosten and his life after his arrival in Japan on ''De Liefde'' with his shipmate William Adams. Ukiyo-e artist Andō Hiroshige was born in the Yayosu barracks in the Yaesu area in 1797. Places in Yaesu *Tokyo Station and highway bus platforms * Yaesu underground ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VX-2R
The Yaesu VX series is a line of two sequences of compact amateur radio handheld transceivers produced by Yaesu. There is a line of ultra-compact lower-power dual-band (2 m and 70 cm) transceivers that started with the VX-1R and was later updated with the VX-2R and VX-3R. There is also a line of 5W tri-band transceivers that started with the VX-5R and was later updated with the VX-6R, VX-7R and VX-8R. Common features The VX line of radios all have features common to most modern hand held amateur radios: * CTCSS and DCS decode/encode and European Tone Burst * RF Squelch capability * Selectable deviation (wide/narrow) * DTMF transmission and memories. In addition, the VX line has features available on only some other brands: * Receive coverage in AM, NFM, and WFM * Wide-band receive coverage, from 500 kHz up to 999 MHz * User-selectable 10 dB attenuator * Ultra-compact size * Channel memories (including frequency, CTCSS/DCS squelch tone and mode, repeater offset, alp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family Radio Service
The Family Radio Service (FRS) is an improved walkie-talkie radio system authorized in the United States since 1996. This personal radio service uses channelized frequencies around 462 and 467 MHz in the ultra high frequency (UHF) band. It does not suffer the interference effects found on citizens' band (CB) at 27 MHz, or the 49 MHz band also used by cordless telephones, toys, and baby monitors. FRS uses frequency modulation (FM) instead of amplitude modulation (AM). Since the UHF band has different radio propagation characteristics, short-range use of FRS may be more predictable than the more powerful license-free radios operating in the HF CB band. Initially proposed by RadioShack in 1994 for use by families, FRS has also seen significant adoption by business interests, as an unlicensed, low-cost alternative to the business band. New rules issued by the FCC in May 2017 clarify and simplify the overlap between FRS and General Mobile Radio Service (GMRS) radio servi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Business Band
In the United States, the business band is the colloquial name used by radio users who utilize, and scanner hobbyists who listen to, the Federal Communications Commission (FCC) Industrial/Business pool frequencies. The regulations listing frequencies in this pool are contained in Subpart C of Part 90, Title 47 of the CFR. Overview The pool describes a series of frequencies on the VHF and UHF two-way radio bands. They are reserved for use by companies and individuals operating commercial activities; educational, philanthropic, or ecclesiastical institutions; clergy activities or hospitals, clinics, or medical associations. In the United States, use of these frequencies requires a license issued by the U.S. FCC. The exceptions to this are five specific frequencies that are also part of the Multi-Use Radio Service (MURS), which permits unlicensed operation on these frequencies, provided the output power does not exceed 2 watts. Other frequency bands, such as citizens band r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Federal Communications Commission
The Federal Communications Commission (FCC) is an independent agency of the United States federal government that regulates communications by radio, television, wire, satellite, and cable across the United States. The FCC maintains jurisdiction over the areas of broadband access, fair competition, radio frequency use, media responsibility, public safety, and homeland security. The FCC was formed by the Communications Act of 1934 to replace the radio regulation functions of the Federal Radio Commission. The FCC took over wire communication regulation from the Interstate Commerce Commission. The FCC's mandated jurisdiction covers the 50 states, the District of Columbia, and the territories of the United States. The FCC also provides varied degrees of cooperation, oversight, and leadership for similar communications bodies in other countries of North America. The FCC is funded entirely by regulatory fees. It has an estimated fiscal-2022 budget of US $388 million. It has 1,482 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Civil Air Patrol
Civil Air Patrol (CAP) is a congressionally chartered, federally supported non-profit corporation that serves as the official civilian auxiliary of the United States Air Force (USAF). CAP is a volunteer organization with an aviation-minded membership that includes people from all backgrounds, lifestyles, and occupations. The program is established as an organization by Title 10 of the United States Code and its purposes defined by Title 36. Membership in the organization consists of cadets ranging from 12 to just under 21 years of age, and senior members 18 years of age and up. These two groups each have the opportunity to participate in a wide variety of pursuits; the cadet program contributes to the development of the former group with a structured syllabus and an organization based upon United States Air Force ranks, while the older members serve as instructors, supervisors, and operators. Most members wear uniforms while performing their duties, however there is a category ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Affiliate Radio System
The Military Auxiliary Radio System (MARS) is a United States Department of Defense sponsored program, established as a separately managed and operated program by the United States Army, and the United States Air Force. The United States Navy-Marine Corps program closed in 2015. The program is a civilian auxiliary consisting primarily of licensed amateur radio operators who are interested in assisting the military with communications on a regional and national level when access to traditional forms of communication may no longer be available. The MARS programs also include active duty, reserve, and National Guard units; and Navy, Marine Corps units. MARS has a long history of providing worldwide auxiliary emergency communications during times of need. The combined two-service MARS programs (Army, and Air Force), volunteer force of over 3,000 dedicated and skilled amateur radio operators provide the backbone of the MARS program. The main benefit of MARS membership is enjoying ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jumper (computing)
In electronics and particularly computing, a jumper is a short length of conductor used to close, open or bypass part of an electronic circuit. They are typically used to set up or configure printed circuit boards, such as the motherboards of computers. The process of setting a jumper is often called strapping. A strapping option is a hardware configuration setting usually sensed only during power-up or bootstrapping of a device (or even a single chip). Design Jumper pins (points to be connected by the jumper) are arranged in groups called ''jumper blocks'', each group having at least one pair of contact points. An appropriately sized conductive sleeve called a jumper, or more technically, a shunt jumper, is slipped over the pins to complete the circuit. A two-pin jumper only allows to choose between two Boolean states, whereas a three-pin jumper allows to select between three states. Jumpers must be electrically conducting; they are usually encased in a non-conducti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
