View allAll Photos Tagged "uhf"
SG24 UHF is a Yutong GTe14 new to Ember, Edinburgh in April 2024.
Ember have significantly increased their presence throughout the Highlands in 2025 with services linking Glasgow and Edinburgh with Fort William and Inverness with Thurso and Aberdeen.
SG24 UHF is seen here in Fort William in between duties getting a charge.
It is amazing to find an aerial dating back to the sixties in such good condition on a building in such a state of dilapidation. It was probably erected between 1966 and 1971 and served from the Belmont transmitter.
UK VHF main stations tended the be vertically polarised and UHF horizontally polarised allowing such a design as this. For such an aerial to be used, the VHF and UHF transmitters would have to be in the same direction or co-sited. The dual feeders are still present and would have been connected to the separate inputs of a dual standard receiver. The short horizontal elements would have just received BBC-2 (System I) initially while the long rods would be used for BBC-1 and ITV (System A), Later the System A networks were closed and replaced with System I but System A transmissions continued with standards converted signals derived locally at the transmitters until 1982. Although disinvested, this aerial could be used for DTT and DAB.
JURO QUE TENTEI - UHF
Cuido de ti à distância
Sem moldar a vontade
Diz o homem à criança
Que o amor é liberdade.
Talvez um dia saibam
Que andei por aqui
E as palavras cantadas
Foram escritas para ti.
Juro que tentei
Juro que percorri
Mil caminhos, eu sei
À procura de ti.
És a flor que descobri
Porta aberta do sonho
Diz-me a voz que há em mim
Que nascemos um p’ro outro.
Musa, tens o meu amor
Céu azul do oceano
Arco-íris do pintor
Lá na serra do Santo.
Juro que tentei
Juro que percorri
Mil caminhos, eu sei
À procura de ti.
No jardim caem folhas
Desenhando o Outono
Como palavras soltas
De um poema nosso.
Juro que tentei
Juro que percorri
Mil caminhos, eu sei
À procura de ti.
www.youtube.com/watch?v=6fIiU-S27sM
(2ª Excursão fotográfica ao Parque da Liberdade em Sintra, com a influência e ajuda do "Melhor dos Mestres"! :) )
A view of the exterior structures: our UHF antenna (used for spacewalks to transmit our communication), our lab WORF window shutter (we open it to take pictures (from the inside of course)), and Columbus in the background. It shows that when on a spacewalk we need to think carefully how we move and where we place our hands. Lots of sharp and delicate equipment everywhere! That shiny square on the left is the Atmosphere Space Interactions Monitor, or ASIM, or the Space Storm-Hunter as our communications people try to rebrand it. It is a Danish-led facility that monitors complex weather phenomena. For years pilots and researchers suspected things were happening above lightning cells but it was hard to research. Few pilots were crazy enough to fly into a thunderstorm (even for science!) and camping out on a mountain top for months in the hope a lightning strike would happen underneath was also not very efficient (scientists love efficiency, like astronauts!). The Space Station is ideal as we travel often over the equator where there are more thunderstorms and we fly relatively close over them. ASIM is a great success, confirming new phenomena happening in our world and it made the front page of Nature magazine, not bad for a box the size of a small fridge! #GoDenmark
Une vue de l’extérieur de la Station :
- les antennes UHF (utilisées pour communiquer lors des sorties extravéhiculaires)
- le hublot du laboratoire WORF derrière son volet, qu’on ouvre pour prendre des photos (en général de l’intérieur, oui :sweat-smile:)
- le laboratoire européen Columbus à l’arrière-plan
Vous comprenez sans doute mieux pourquoi, lorsqu’on sort dans l’espace, on doit être aussi attentif à la façon dont on se déplace et aux endroits où on s’agrippe : il y a des des équipements fragiles partout ! Le carré brillant à gauche, c’est notre chasseur de tempête ASIM (pour Atmosphere Space Interactions Monitor). C’est une installation danoise qui étudie les phénomènes météorologiques complexes au dessus des orages. Pendant des années, les pilotes et les scientifiques ont suspecté la présence de phénomènes lumineux au-dessus de ces gros nuages, mais c’était difficile à prouver. Peu de pilotes sont assez fous pour survoler un orage, même pour la science, et rester en haut d’une montage en espérant voir le dessus d’un orage, ce n’est pas très efficace (comme les astronautes, les chercheurs aiment l’efficacité). La Station spatiale internationale présente plusieurs atouts pour cette traque. Elle n’est pas très loin de la Terre, mais assez pour être au-dessus des nuages, et elle survole souvent l’équateur où les orages les plus violents se produisent plus souvent. ASIM fonctionne très bien, il a confirmé la présence de ces phénomènes lumineux don’t on commence à peine à comprendre le role, et ses résultats ont fait la une du journal scientifique Nature. Pas mal pour un instrument de la taille d’un petit frigo !
Credits: ESA/NASA–T. Pesquet
439B6393
A view of the exterior structures: our UHF antenna (used for spacewalks to transmit our communication), our lab WORF window shutter (we open it to take pictures (from the inside of course)), and Columbus in the background. It shows that when on a spacewalk we need to think carefully how we move and where we place our hands. Lots of sharp and delicate equipment everywhere! That shiny square on the left is the Atmosphere Space Interactions Monitor, or ASIM, or the Space Storm-Hunter as our communications people try to rebrand it. It is a Danish-led facility that monitors complex weather phenomena. For years pilots and researchers suspected things were happening above lightning cells but it was hard to research. Few pilots were crazy enough to fly into a thunderstorm (even for science!) and camping out on a mountain top for months in the hope a lightning strike would happen underneath was also not very efficient (scientists love efficiency, like astronauts!). The Space Station is ideal as we travel often over the equator where there are more thunderstorms and we fly relatively close over them. ASIM is a great success, confirming new phenomena happening in our world and it made the front page of Nature magazine, not bad for a box the size of a small fridge! #GoDenmark
Une vue de l’extérieur de la Station :
- les antennes UHF (utilisées pour communiquer lors des sorties extravéhiculaires)
- le hublot du laboratoire WORF derrière son volet, qu’on ouvre pour prendre des photos (en général de l’intérieur, oui :sweat-smile:)
- le laboratoire européen Columbus à l’arrière-plan
Vous comprenez sans doute mieux pourquoi, lorsqu’on sort dans l’espace, on doit être aussi attentif à la façon dont on se déplace et aux endroits où on s’agrippe : il y a des des équipements fragiles partout ! Le carré brillant à gauche, c’est notre chasseur de tempête ASIM (pour Atmosphere Space Interactions Monitor). C’est une installation danoise qui étudie les phénomènes météorologiques complexes au dessus des orages. Pendant des années, les pilotes et les scientifiques ont suspecté la présence de phénomènes lumineux au-dessus de ces gros nuages, mais c’était difficile à prouver. Peu de pilotes sont assez fous pour survoler un orage, même pour la science, et rester en haut d’une montage en espérant voir le dessus d’un orage, ce n’est pas très efficace (comme les astronautes, les chercheurs aiment l’efficacité). La Station spatiale internationale présente plusieurs atouts pour cette traque. Elle n’est pas très loin de la Terre, mais assez pour être au-dessus des nuages, et elle survole souvent l’équateur où les orages les plus violents se produisent plus souvent. ASIM fonctionne très bien, il a confirmé la présence de ces phénomènes lumineux don’t on commence à peine à comprendre le role, et ses résultats ont fait la une du journal scientifique Nature. Pas mal pour un instrument de la taille d’un petit frigo !
Credits: ESA/NASA–T. Pesquet
439B6387
If memory serves me correct you had to turn into Channel 22 UHF here in Southern California. michaelpoulin@dyingindowney.com
The fire station at the Chernobyl-2 secret town next to the Duga Radar has a model of the radar and town that still stands today, along with some atmospheric Soviet era posters.
The Chernobyl Exclusion Zone has many sites that are surprising tourist attractions, but none could be less likely than the Duga Radar.
This was the site of one of three “Over The Horizon” radars (OTH) in the USSR. This and another site in Ukraine beamed towards Europe; one in the Russian Far East, beamed out into the Pacific. By using shortwave rather than the UHF or SHF frequencies usually used by radar, the range could be extended over the horizon by detecting signals refracted by the ionosphere. Despite the fact that the ionosphere is always in a somewhat chaotic state, in theory a powerful enough computer could still detect the source of any given reflection.
In a metaphor for the entire Soviet system, however, no computer powerful enough existed and these enormously powerful 10 Megawatt transmitters merely sent out an intensely irritating pulse known as the woodpecker which blocked most shortwave transmissions over large parts of the world, annoying Soviet friends and allies alike to absolutely no utility. The system operated intermittently from 1976 until 1989. It was located near Chernobyl to benefit from the enormous amount of electricity it generated.
Ugly as the signal generated might have been, the antenna array itself is a thing of majesty, bursting from the forests that stretch on a flat plain for miles in every direction; a cascade of metal cones and struts that is 150 metres high and 700 metres long.
The radar had its own secret town attached; it was never officially acknowledged but was known as ‘Chernobyl-2’. It came complete with a gymnasium, school, hotel, and fire station. This was the only fire station in the region not called out when Reactor No. 4 caught fire on 26 April 1986 – a sign of the importance attached the OTH radar project.
Maintaining a structure like this is expensive, and nobody is expending any money on it, so see this strange Cold War engineering wonder while you can. It won’t last forever.
THE DIVIS TRANSMITTER is the main high-power UHF and BBC National FM/DAB station that serves County Antrim and parts of County Down. Sited just outside Belfast, it is the primary UHF/FM main station in Northern Ireland and was originally the country's main BBC 405-line television transmitter, coming into operation in this capacity in July 1955. As such, it was the first permanent television transmitter to be established within Ireland. Although one of three UHF main stations in Northern Ireland, it is the only one to feature a stayed mast, the other stations at Brougher Mountain and Limavady both utilising smaller self-supporting towers. Stayed masts are however located at the UHF relay stations at Londonderry and Strabane (respectively former BBC and ITA 405-line relays) and at Black Mountain, the former ITA 405-line main station and current transmitter of 'Five' that is sited adjacent to Divis. The Divis station is located in a range of hills directly overlooking Belfast to the east, in an area which for many years was controlled by the Ministry of Defence, until it was sold in 2004 to the National Trust and subsequently opened to the public. It is sited between the peaks of Divis Mountain and Black Mountain and is ironically closer to the latter than the transmitter that is named after it. THE BLACK MOUNTAIN TRANSMITTER is the former ITA 405-line VHF main station for Northern Ireland and currently the carrier of multiple broadcast services to Belfast and the surrounding area. As a former 405-line main station, it is typically one of two adjacent transmission sites, the other being the UHF main transmitter at Divis. Sited near Hannahstown towards the west of Belfast, both the Black Mountain and Divis transmitters occupy ground within the range of hills that are now promoted for tourism purposes as 'Divis and The Black Mountain' in reference to the two main summits. The Divis transmitter is sited between these summits, whilst the Black Mountain transmitter is in a more detached position, being located on slightly lower ground along the outer edge of the hills. Of all the examples of adjacently-sited stations, Black Mountain and Divis are amongst the closest to each other, being just over a mile apart and probably only exceeded in proximity by Crystal Palace and Croydon in London. www.google.co.uk/url?sa=t&source=web&cd=2&ved...
A look at WFMZ-TV's old logo with the '6' and '9' overlapped into a hurricane eye-like symbol and the current 69 logo. In today's digital TV world, they actually operate on channel 46, with a translator on channel 45 at the Roxborough tower farm in Philadelphia. I receive the main signal from Allentown better than the Philly translator. I used to receive their old analog signal, but withe more difficulty than the digital signal.
IT'S ISHIKU
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Revolving Restaurant and Toronto's Telecommunications Tower
The CN Tower has UHF, VHF, Microwave, TV and fixed mobile communications facilities.
The tower is comprised of two main observation decks:
(1) the lower and larger SkyPod at 1,150 ft (351 m),
(2) and the higher but smaller Space Deck at 1,465 ft (447 m).
The SkyPod consists of three levels:
(1) an outdoor and indoor observation deck with a partial glass floor,
(2) The Horizons Café with another indoor observation deck,
(3) and a revolving restaurant named "360".
-The Revolving Restaurant "360"makes a complete rotation once every 72 minutes.
-The Space Deck is the world's highest public observation deck.
Copyright © 2008-2012 Tomitheos Photography - All Rights Reserved
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Here is a new view of my VHF/UHF setup. On the left is a DBJ-220 1.25-meter (220 MHz) base station antenna, designed by Ed Fong, WB6IQN. To the right is a KB9VBR 2-Meter (144 MHz) J-Pole, which also works well on 70 centimeters (440 MHz). The two satellite TV dishes are inactive, although they make the scene more impressive-looking.
My HF antenna--which I hope to mount later this week--will be around the corner, out of sight from this spot.
Rare ad for defunct UHF television station KQTV Channel 21 in Fort Dodge, Iowa, from the Iowa edition of TV Guide, July 11-17, 1959. They were an NBC affiliate but did not carry a number of NBC shows at the time, including the Today Show with Dave Garroway or the Tonight Show with Jack Paar. The station, later known as KVFD, was knocked off the air in a tornado in May 1977 during a broadcast of NBC's "Grizzly Adams" and never returned to the air. The station had only recently moved to Channel 50. Iowa Public Television later occupied Channel 21.
Shown on KQTV's Late Late Show on the Saturday of this ad was "The Monster from the Ocean Floor" (1954).
Taller Acción en Cadena
UHF. Acción en Cadena.
Taller de vídeo-collage con Fermín Jiménez Landa dirigido a jóvenes de entre 13 y 18 años.
Fermín Jiménez Landa es artista. Su trabajo parte de lo cotidiano y próximo para explorar ciertas ideas abstractas propias de la física con el objetivo de trasladarlas de una manera eufórica al terreno doméstico, diario y rutinario.
Action Chain Workshop
UHF. Action in Chain.
Workshop of video-collage with Fermín Jiménez Landa directed to young people between 13 and 18 years.
Fermín Jiménez Landa is an artist. His work starts from the daily and the near to explore certain abstract ideas typical of physics with the objective of moving them in a euphoric way to the domestic, daily and routine.
Foto/Photo: Carlos Granados
TALLER CON FERMÍN JIMÉNEZ LANDA EN CA2M
___________________________________________________________________
Enlaces: WEB CA2M | FACEBOOK CA2M | YOUTUBE CA2M | TWITTER CA2M
Based on US AN/ARC-52 aircraft communication radio. The valves shown are, L-R, pentode 5654, then two 6J4 triodes. right hand one is a Mullard equivalent M8248 to a 6J4. Incredibly there are also two subminature leaded-wire valves in the enclosure behind: 6021 double triode, and pentode 5840.
Circuit seen on the website of Koos Bouwknegt: www.vintageavionics.nl/index_bestanden/PTR175_.htm Also the valve museum : www.r-type.org/search.php
The circuit uses 15 crystals to provide a selectable set of stable fundimental frequencies, then harmonic products of these as well, providing more outputs still on select. I suspect but yet to understand if this is for a Wadley Loop anti-frequency-drift system.
Introduced in 2003 as replacement for Renault Master Units. This Ambulance Control Point acts as the focal point for all NHS Healthcare Resources at the site of a major incident, or major event. Commands, Controls and Co-ordinates resources, communication and patient distribution from the scene. Originally had multiple VHF and UHF radio, Satellite Phone, Atlas Ops, Laptops, Printers, media monitoring and mobile telephony from different providers, marine generator, inverters, battery backups, various power hook-ups, links into BT landlines. 5m Clarke Mast and heavy duty awning. Now equipped with Airwave, TETRA radio, internet, intranet.
Among the many products designed and pioneered by RCA at Camden, NJ are the triangular dipole "bow tie" antenna for UHF-TV and the 45 RPM phonograph record.
Later named Angela Merc, by Alison..
en.m.wikipedia.org/wiki/Angela_Merkel
Great features and condition for comfort, built and added to by two owners over a few years of travel!
Here are some details...
Mercedes sprinter MWB 413 CDI turbo. $ 28000
Year ... 2002
275555 klm
New windscreen
Duel rear wheels
2x 80 watt solar panels
2x 120 amp hour batteries
Gas hot water
Toilet/shower
3/4 fridge ..3 way domestic
Diesel heater
Microwave
90 ltr water tank--80ltr Gray water tank
Electrolux awning
Iron man rear awning
Rev camera
4burner stove oven and griller
413CDi Turbo diesel, MWB 276,000km good tyres, passed Rego inspection, and computer memory diagnostics, the EDC, or Electronic Diagnostic Computer, then had a P1234 error code that was the throttle sensor, reset by the local Mercedes dealer.
We have removed the two UHF CB aerials and replaced them with one on the nearside end of the roo bar, and fitted a new booster and better AM antenna on the roof!
specs on Wikipedia en.wikipedia.org/wiki/Mercedes-Benz_Sprinter#Engines
2000–2006 (2002–2006 USA)[edit]
A model 308 D adapted for use as a postbus in Austria (2008)
modelsengine codeconfigurationdisplacementmax. powermax. torque
208 CDI
308 CDI
408 CDI OM 611 inline four 16v DOHC2,148 cc (131.1 cu in)82 PS (60 kW; 81 hp)200 N·m (148 lbf·ft)
211 CDI
311 CDI
411 CDIOM 611inline four 16v DOHC2,148 cc (131.1 cu in)109 PS (80 kW; 108 hp)270 N·m (199 lbf·ft)
213 CDI
313 CDI
413 CDI OM 611 inline four 16v DOHC2,148 cc (131.1 cu in)
129 PS (95 kW; 127 hp)300 N·m (221 lbf·ft)
216 CDI
316 CDI
416 CDI
616 CDIOM 612 /
OM 647inline five 20v DOHC2,685 cc (163.8 cu in)156 PS (115 kW; 154 hp)330 N·m (243 lbf·ft)
214
314
414M 111 inline four 16v DOHC2,295 cc (140.0 cu in)143 PS (105 kW; 141 hp)210 N·m (155 lbf·ft)
Vehicle Choices
The base vehicle choice offered by Winnebago for the 2104 is quite awesome! Full marks to Winnebago. All are four cylinder. It starts with the Ford Transit 4250 (90 KW), then the Mercedes 413 (95 KW), then the Mazda 4600 (78.6 KW) and finally the Isuzu NPR 300 (89 KW). Interestingly no petrol versions are available and, all offerings are turbo charged except the Mazda.
The Mercedes is the smallest motor, yet because it is so hi-tech, it easily develops the most power regardless of cubic capacity. Auto options are available on the Mercedes, and Isuzu only. We spoke to as many owners as we could find at the 2002 CMCA Rally at Barcaldine and the Mercedes easily seemed to be giving the most user satisfaction followed by Ford. Time and time again the excellent fuel economy was high on the list for reasons for purchasing.
The Mercedes is a VERY high tech machine using common rail diesel injection technology. This results in the exceptional power from such a tiny 2150 cc motor. We spoke to three owners who claimed between 500 to 700 kms range from the 75 litre fuel tank. Amazing stuff as with the little Freeway we filled up as soon as we hit 300/350. These figures are of course pie in the sky and the best one can hope to achieve is 13 litres/100 by travelling around 90 KPH.
Rather oddly Winnebago mention none of the fantastic features found on the Mercedes such as the Sprint Shift. This lets you drive in automatic mode (6 speeds) as a clutchless manual similar to how a motorbike works. There is NO red line on the tacho as engine management will not let you do anything that can vaguely damage the engine. It is also the only vehicle offering disc brakes on all wheels, a most desirable feature on any motorhome.
from www.around-oz.com/reviews_mh/leisure_seeker_2104_page_1.htm