1952 Licence AMATEUR HAM RADIO STASTION Hebrew ISRAEL Revenue STAMPS Homebrew

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1952 Licence AMATEUR HAM RADIO STASTION Hebrew ISRAEL Revenue STAMPS Homebrew:
$69.00

DESCRIPTION : Up for sale is an old vintage LICENCE for a private AMATEUR RADIO STATION ( HAM RADIO or HOMEBREW ) which was granted in 1952 ( The form was issued in 1951 ) in Tel Aviv Israel by the Israel authority being the Ministery of Transportation , The Division for Radio, Telegraph, Telephone and Post . Eight revenue stamps for the years 1952 up to 1958 are pasted and stamped on this licence. 3\" x 5\" while folded as issued. 3 times as much while opened . Very good condition. ( Please watch the scan for a reliable AS IS scan ) Will be sent in a special protective rigid sealed packaging.

PAYMENTS : Payment method accepted : Paypal .

SHIPPMENT : Shipp worldwide via registered airmail is $ 12 . Will be sent in a special protective rigid sealed packaging. Will be sent within3-5 days after payment . Kindly note that duration of Int\'l registered airmail is around 14 days.

Amateurradio (also called ham radio) is the use of designated radio frequency spectra for purposes ofprivate recreation, non-commercial exchange of messages, wireless experimentation,self-training, and emergency communication. The term \"amateur\" isused to specify persons interested in radio technique solely with a personalaim and without direct pecuniary interest, and to differentiate it from commercial broadcasting, public safety (suchas police and fire), or professional two-way radio services (such as maritime, aviation, taxis,etc.). The amateur radio service (amateur service and amateursatellite service) is established by the International TelecommunicationUnion(ITU) through the International Telecommunication Regulations. Nationalgovernments regulate technical and operational characteristics of transmissionsand issue individual stations licenses with an identifying call sign. Prospective amateuroperators are tested for their understanding of key concepts in electronics andthe host government\'s radio regulations. Radio amateurs use a variety of voice,text, image, and data communications modes and have access to frequencyallocations throughout the RF spectrum to enable communication across a city, region, country,continent, the world, or even into space. Amateur radio is officiallyrepresented and coordinated by the International Amateur Radio Union(IARU), which is organized in three regions and has as its members the nationalamateur radio societies which exist in most countries. According to an estimatemade in 2011 by the American Radio Relay League,two million people throughout the world are regularly involved with amateur radio. About830,000 amateur radio stations are located in IARU Region 2 (the Americas)followed by IARU Region 3 (South and East Asia and the Pacific Ocean) withabout 750,000 stations. A significantly smaller number, about 400,000, arelocated in IARU Region 1 (Europe, Middle East, CIS, Africa). Homebrew is an Amateur radio slang term forhome-built, noncommercial radio equipment. Design and construction of equipmentfrom first principles is valued by amateur radio hobbyists for educationalvalue, and to allow experimentation and development of techniques or levels ofperformance not readily available as commercial products. Some items can behome-brewed at similar or lower cost than purchased equivalents. In the earlyyears of amateur radio, long before factory-built gear was easily available,hams built their own transmitting and receiving equipment, known ashomebrewing. In the 1930s, 40s, and 50s, hams handcrafted reasonable-quality vacuum tube-based transmittersand receivers which were often housed in their basements, and it was common fora well-built \"homebrew rig\" to cover all the high frequency bands (1.8 to 30MHz). After WWII ended, surplus material (transmiters/receivers, etc.), wasreadily available, providing previously unavailable material at costs lowenough for amateur experimental use. Homebrewing was often encouraged byamateur radio publications. In 1950, CQ Amateur Radio Magazine announced a ‘‘$1000 Cash Prize‘Home Brew’ Contest’’ and called independently-built equipment ‘‘the type ofgear which has helped to make amateur radio our greatest reservoir of technicalproficiency.’’ The magazine tried to steer hams back into building bysponsoring such competitions and by publishing more construction plans, sayingthat homebrewing imparted a powerful technical mastery to hams. In 1958, a CQ editorial opined thatif ham radio lost status as a technical activity, it might also lose theprivilege of operating on the public airwaves, saying, ‘‘As our ranks of homeconstructors thin we also fall to a lower technical level as a group’’. In the1950s and 60s, some hams turned to constructing their stations from kits soldby Heathkit, Eico EF Johnson, Allied Radio\'s Knight-Kit, World Radio Laboratories and other suppliers. Today,only a minority of hams own and operate completely homebrew or kit-builtamateur stations. However, there are many new ham radio kit suppliers, and the\"art\" of homebrewing is alive and thriving. Practices Homebrewing differs from kit-building in that\"homebrew\" connotes the process of constructing equipment using partsand designs gathered from varied and often improvised sources. Even the mostskilled homebrewer may not have time or resources to build the equivalent ofmodern commercially-made amateur radio gear from scratch, as the commercialunits contain custom integrated circuits, custom cabinets, and are the endresult of multiple prototypes and exhaustive testing. However, constructingone\'s own equipment using relatively simple designs and easily-obtainable or junk box electronic componentsis still possible. Homebrew enthusiasts say that building one\'s own radioequipment is fun and gives them the satisfaction that comes from masteringelectronic knowledge. QRP homebrew QRPersare ham radio enthusiasts known to use a power output of five watts, sometimesoperating with as little as 100 milliwatts or even less. Extremely low power --1 watt and below -- is often referred to by hobbyists as QRP. Commercialtransceivers designed to operate at or near QRP power levels have beenavailable for many years, but some QRPers prefer to design and build their ownequipment, either from kits or from scratch. Many build miniature transmittersand transceivers into Altoids boxes and operate using battery power. Popular QRP kitmodels include the Elecraft K2, KX1, and now KX3 and those produced by NorCal, Small WonderLabs, and others. QRP activity can often be heard on 7.030 MHz. Homebrewing with vacuum tubes \"Glowbug\"is a term used by US amateurs to describe a simple home-made tube-type radioset, reminiscent of the shortwave radio-building craze of the 1920s and 30s.\"Glow\" refers to the glow of the vacuum tubes and \"bug\" tothe gear\'s relatively diminutive size. Generally, any small, home-builttube-type transmitter or receiver may be referred to as a glowbug. The majorityof glowbug transmitters are designed to be used in the CW radiotelegraphy mode. A number ofradio amateurs also build their own tube receivers and AM voice transmitters. Aslate as the 1960s, glowbugs were part of many beginner ham stations, and the ARRL Radio AmateurHandbook for those years exhibited a number of such simple, tube-based designs.Today, glowbugs are enjoying a resurgence of interest among QRP enthusiasts andothers with a penchant for constructing their own equipment. A growing numberof hams are \"getting back to their roots\" by assembling glowbugs onsteel chassis, tin cakepans, and wooden boards. Glowbug enthusiasts can oftenbe heard communicating on the shortwave bands via CW using Morse code. A popular frequencyto hear glowbug contacts is 3.57950 MHz. Simple oscillators for this frequencycan be built with common NTSC color burst oscillator crystals, which operate at 3.579545 MHz.