VERTEX RADIO REPAIR - RADIO REPAIR

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Vertex Radio Repair


vertex radio repair
    repair
  • Put right (a damaged relationship or unwelcome situation)
  • a formal way of referring to the condition of something; "the building was in good repair"
  • Fix or mend (a thing suffering from damage or a fault)
  • restore by replacing a part or putting together what is torn or broken; "She repaired her TV set"; "Repair my shoes please"
  • Make good (such damage) by fixing or repairing it
  • the act of putting something in working order again
    radio
  • indicating radiation or radioactivity; "radiochemistry"
  • The activity or industry of broadcasting sound programs to the public
  • Radio programs
  • medium for communication
  • The transmission and reception of electromagnetic waves of radio frequency, esp. those carrying sound messages
  • transmit messages via radio waves; "he radioed for help"

Tall Tower
Tall Tower
The Warsaw radio mast was the world's tallest structure until its collapse on 8 August 1991. The mast, which was designed by Jan Polak, was 646.38 metres (2,120.67 ft) tall. Its construction started in July 1970, was completed on 18 May 1974, and its transmitter entered regular service on 22 July that year. It was located in Konstantynow, Gabin, Poland, and was used by Warsaw Radio-Television (Centrum Radiowo-Telewizyjne) for longwave radio broadcasting on a frequency of 227 kHz before 1 February 1988 and 225 kHz afterwards. Its base, according to GoogleEarth, was 115.2 metres above sea level. Because a voltage potential of 120 kV existed between the mast and ground, it stood on a 2-metre-high insulator. It operated as a mast radiator (half wave radiator), so its height was chosen in order to function as a half-wavelength antenna at its broadcasting frequency. The signals from its 2 megawatt transmitters could be received across all of Europe, North Africa and as far away as North America. Its weight is debated: 380 tonnes, 420 tonnes, 550 tonnes and even 660 tonnes have been cited, probably the result of inaccurate unit conversions by translators. Polish sources claim 420 tonnes.The Warsaw radio mast was a guyed steel lattice mast of equilateral triangular cross section, with a face width of 4.8 m. The vertical steel tubes forming the vertices of the mast had a diameter of 245 millimetres; the thickness of the walls of these tubes varied between 8 and 34 millimetres depending on height. The mast consisted of 86 elements, each of which had a length of 7.5 metres. The mast had 3 arrays of guy wires, each attached to the mast at 5 levels. Each guy was fixed on a separate anchor block at the ground and was 50 mm in diameter. To prevent the guy wires from interfering with the radio transmissions, the guys were insulated at regular intervals. The weight of guys and insulators used to anchor the mast was 80 metric tons. An elevator and separate protected ladders were installed in the interior of the mast to facilitate access to the various mast components, including the aircraft warning lamps. The elevator had a maximum speed of 0.35 m/s and required 30 minutes for a trip from the bottom of the structure to the top. In the lower half of the mast, there was a vertical steel tube, attached to the mast's outer structure with large insulators. This tube was grounded at the bottom, and connected electrically to the mast structure at half the total height. This technique works by applying a DC ground at a point of minimum radiofrequency voltage, conducting static charge to ground without diminishing the radio energy. Static electrical charge can build up to high values, even at times of no thunderstorm activity, when such tall structures are insulated from ground. Use of this technique provides a better lightning protection than using just a spark gap at the mast feed, which is standard at most mast radiators insulated against ground. A special overhead radio frequency transmission line was used to transfer the signal from the transmitter building to the mast. The transmitter building situated at 52°22'22,9" N and 19°48'25" E had a volume of 17,000 cubic metres and was approximately 600 metres from the mast. The transmitter consisted of two 1000 kilowatt units built by Brown Boveri and Cie. An atomic clock was used to generate the transmission frequency in order to provide a very accurate, stable signal source which could be used as a frequency standard by anyone within signal range. The station, which had an area of 65 hectares, also contained a 76 metre tall lattice tower of rectangular cross-section close to the transmitter building at 52°22'23,6" N and 19°48'24,4" E. This tower was used to provide a radio link for programme feeds from the studio. To supply power to the station a 110kV substation was built. The substation was over-engineered due to the strategic importance of the station as Poland's central transmitter. Although the power consumption of the transmitting station was large (estimated 6000 kW), the substation was capable of supplying much more than was required. 6 small towers were erected around the periphery of the station's grounds in order to support aircraft warning lamps where the guy ropes were located. They are situated at 52°22'17,4" N,19°48 9,7" E; 52°21'53,8"N, 19°48'6,3" E; 52°21'57,1"N, 19°47'48" E; 52°21'55,8"N,19°48'27,6" E; 52°22'6,1" N,19°48'24,3"E; 52°22'8,1"N, 19°47'54,4" E. For photo see:[1] The official name of the facility was Radiofoniczny Osrodek Nadawczy w Konstantynowie (Radiophonic Transmission Center Konstantynow), Radiowe Centrum Nadawcze w Konstantynowie (Radio Transmission Center Konstantynow) or Warszawska Radiostacja Centralna (WRC) w Gabinie (Warsaw Central Radio Station Gabin). It broadcast Polskie Radio's Program I. Approximately ten years after completion of the mast, inspections
Highland Radio from Donegal on the Internet in London
Highland Radio from Donegal on the Internet in London
Just got this from Curry's in London ?89.00! If you have a broadband connection, a wireless network and like listening to the radio, you must get one of these today - it is amazing. It can pull radio streams from thousands of worldwide Internet radio stations via your home Wi-fi network. It can for example let you listen to the latest news bulletin (on demand) and allow you to catch up with those episodes of the Archers you may have missed (offering the days in the menu). It can search by country, genre and you can store 5 favourites which I agree is a bit low. You can also search for audio files - music or podcasts and stream these to the radio too. Have not worked that out yet but the Radio can see your PC(s) and any shared folders. I reckon this is going to be another of those ground-breaking media devices that most people will have in a few years.

vertex radio repair
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