XXL Space Age Ball Clock! Phenomenal large impressive wall clock in the best space age style. The special feature is its great design variation. The twelve rays of the hour markers are extendable and flexible, classic radio antennae. Each individual element can be extended in length and tilted in angle, and the spheres can also be rotated and tilted. This means it can be hung as a classic flat Startburst clock with different diameters or changed in angle and mounted as a three-dimensional wall object. On the last picture you can see the variance of this clock. High-quality stainless steel and chrome-plated elements. Really a statement. And an absolutely rare timepiece! Perfectly represents the Atomic - Mid Century - Space Age periods. In very good condition! For collectors or your wall. TYPE: Flexible XL Sputnik ball wall clock MOVEMENT: Transistor battery movement Works worldwide with a standard D-size Lr20 battery MATERIAL: Stainless steel center and balls Chrome plated extendable metal rods Extendable Chrome hands with black balls CONDITIONS: Optically in very good condition! Only fewer signs from age and use, minimal patina. For detailed pictures please use the zoom. The movement has been tested for several weeks and runs well. MEASUREMENTS: Max Diameter: 26.5" / 67 cm WEIGHT: 2.3 lb / 1.05 kg Rare and impressive Space Age timepiece! More mcm wall clocks here >> www.etsy.com/shop/VintageGermanClocks Item will be sent well wrapped via Registered Priority Air Mail in a save package. Shipping time worldwide from Germany: 6-18 business days. Please ask me if you have any questions! Thank you!
L'antenne hélice axiale doit son nom au fait qu'elle rayonne principalement dans son axe de bobinage. Elle a été décrite pour la première fois en 1947 par John ...
Survivalist Communicator 3-3-3 Radio Plan This is the “When, Where, and How” to make radio contact with each other for SHTF. The 333 Radio Plan was designed for SHTF communications. Ver…
Your first Amateur radio antenna. The all time favorite Ham Radio wire antenna is the half-wavelength, center-fed, dipole. It is easy to build and it performs adequately. The dipole is the reference used to measure the performance of the other antennas. It's the base line. The dipole is a great reference point for amateur radio because you can actually build one (yes you can). And on some of the lower bands, most amateur radio operators will be using these. So you don't have to worry about pile-ups your never going to be able to break. There is also less competition on these bands since most everyone is using the same type of antenna as you... A wire. As well as the lower bands although very noisy at times are very forgiving regarding antennas, so a dipole works just great. Unlike on the upper UHF bands where you need a 11 element plus yagi just to hear anything at any decent distance. Ham Radio Wire Antennas ....or....Copper Wire Antennas...have great benefits: They are inexpensive to build and make. or they're dozens of pre-made designs built by other amateur operators to choose from. They are simple to put up in the air. (find a tree and your good to go). Or if your still worried about Zombies, you can put one in your attic. You can even really cheap out and feed them with inexpensive feed line...like ladder line! Wow what could be better?
Equation of a parabola, the meaning of locus, directrix, focus, quadratic equation, maxima and minima, etc.
blog radio radioascolto radioamatori associazione air
.css-1sgivba{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-align-items:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-flex-direction:row;-ms-flex-direction:row;flex-direction:row;gap:0.5rem;margin-bottom:var(--chakra-space-2);} .css-cosgki{font-size:16px;font-weight:var(--chakra-fontWeights-bold);} Product Type: Photographic Print Print Size: 18" x 24" Finished Size: 18" x 24" .css-1336n79{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-align-items:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-flex-direction:row;-ms-flex-direction:row;flex-direction:row;gap:0.5rem;margin-top:var(--chakra-space-8);margin-bottom:var(--chakra-space-8);} Product ID: 612142304A
Zur meiner Youtube Video Anleitung für die T2LT Drahtantenne habe ich hier eine detaillierte Anleitung erstellt, wie die beliebte T2LT Antenne aus 10m RG58 C/U Kabel* leicht nachgebaut werden kann.…
Patriot Radio Channels are the VHF UHF frequencies for American Patriots. Frequencies for freedom! Download and program your walkie talkies with this free programming file. Be ready when you are ca…
I am often asked, "what is a good first antenna for use on the HF bands". This article covers some simple wire antennas for HF...
Amateur Radio created many antennas, like Spark Gap Transmitters during the Titanic disaster, and wire antennas that are still used today. This wikiHow article teaches you how to build several antennas for amateur radio. Emphasis on the...
This immense tower is the tallest manmade structure in the entire western hemisphere and, at one point, the world.
(Now in a choice of colours) Free to download and use, just click on the image to enlarge it then right click and save the image to your computer. Calling Channels: 26.285Mhz - Channel 19 Super Low - USB CALLING (International) - NOT LEGAL IN UK 27.125Mhz - Channel 14 Mid Band - AM CALLING 27.185Mhz - Channel 19 Mid Band - FM/AM CALLING (Mobile) 27.275Mhz - Channel 27 Mid Band - USB CALLING 27.315Mhz - Channel 31 Mid Band - FM DX CALLING (Europe) 27.385Mhz - Channel 38 Mid Band - LSB CALLING (Mainly United States) 27.555Mhz - Channel 12 High Band - USB CALLING (International) - NOT LEGAL IN UK 27.73125Mhz - Channel 14 UK Band - FM CALLING (Home Base) 27.78125Mhz - Channel 19 UK Band - FM CALLING (Mobile) UK LEGAL CB Radio Frequencies German Legal CB Radio Frequencies President McKinley EU EXPORT Frequencies Thunderpole T-X Handheld Frequency Options
Fig 1 shows a simple 27MHz transmitter producing a carrier. (receiver for this circuit HERE) The 27MHz transmitter PC board Here is the circuit made by Lucian Papadopol [email protected] He has created capacitor values by paralleling two values. This means it produces an unmodulated 27MHz signal and when picked up by a receiver, such as shown in fig 2, the result is a clean, noise-free reception. To increase the output of the transmitter, the 390R resistor is replaced by a 220R. This increases the current from 7mA to 12mA. The resistor could be decreased to 150R for more output.
If you fancy trying your hand at radio astronomy, why not convert an old satellite dish.
Ce ne sont pas les antennes pour le mobile qui manque au QRA mais la tentation à été grande d’en fabriquer une en regardant cet article de Dominique F5NS que l’on peut trouver ici : [...]
Attic AMSAT Antenna - Working the Ham Radio Satellites With A Rotatable, Computer Controlled, Yagi Attic Antenna (I am finally getting around to writing this webpage on my attic satellite antenna system. While I no longer have this setup, I have received a lot of requests for details on this system from other hams wanting
Those of us that are into ham radio know that one of the most important parts of a radio station, if not the most import part, is the antenna. Most of the hams I know have spent, or a willing to spend, hundreds of dollars in transceivers. When it comes to the antenna system, well... it's a different story! Today I will write about a commercial antenna design that I find interesting enough to write about. It's the Multiband M0PLK Delta antenna Here's why I find it interesting. It's a muliband antenna. Performs well on 20-17-15-12-10m. It can be used on the lower and higher bands (with reduced performance). It's a loop, so it has a low angle of radiation. This favors DX contacts. Since it's a single loop, it's bi-directional. On a permanent installation it only requires a light duty rotor (a TV antenna rotor) to rotate the antenna. It can be turned by hand, with minor effort, in a portable operation. It can be home-built in a light-weight format, turning this antenna into a very interesting option for those of us who do SOTA or operate portable. So, what does this antenna look like? Here it is: The loop is formed my two aluminum "arms". On top of each arm, wire is used until the feed point. Here's a pictures showing this particular connection: The feed point is then fed with ladder line that comes down into a balun. After the balun the usual 50 ohm coax is used. Here are some pictures of the base of the antenna, including the balun: This antenna is, at this time, commercialized at about 225€, that is about 300USD. Here are a couple of places where you can buy it: VPA Systems UrBasket.eu UrBastket ebay shop (here you van actually make an offer for the antenna). If you curious about the antenna designer you can find him at QRZ,com. And of course, you can read this antenna reviews on eham where it currently rates exceptionally well. As I own two of these antennas my experience dealing with Artur (M0PLK) was the best. Just to show how good the support is I will share a quick story: when I bought the antennas I had plans to use them right away. Unfortunately when the antennas arrived my job position had changed and I was loaded with work. I had no choice other to check what had arrived and store the antennas, waiting for a better day to use them. Time went by and one year (yes, you read well, one year) latter I found the time to assemble the antennas only to find out that there were a couple of parts missing (some clamps; simple parts really, I should have checked). I e-mailed Artur anticipating that we would ask me why so much time after buying I was asking for missing parts. I never received such a question. Instead, at his suggestion, Artur sent me the missing clamps for the antennas. No questions asked. How's this for support? So, whatever you do, buy or build your own multiband delta loop, have fun and happy DXing. Here are the dimensions of this antenna:
