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Switch on subtitles for more information Medium wave (MW) is the part of the medium frequency (MF) radio band used mainly for AM radio broadcasting. For Europe the MW band ranges from 526.5 kHz to 1606.5 kHz and in North America an extended MW broadcast band goes from 535 kHz to 1705 kHz Medium wave signals have the property of following the curvature of the earth (the groundwave) at all times, and also refracting off the ionosphere at night (skywave). This makes this frequency band ideal for both local and continent-wide service, depending on the time of day. For example, during the day a radio receiver in the state of Colorado is able to receive reliable but weak signals from high-power stations such as 770 KKOB, or 610 KNML 500 miles away from their towers in Albuquerque, New Mexico, due to groundwave propagation. The effectiveness of groundwave signals largely depends on ground conductivity and higher conductivity results in better propagation. At night, the same receiver may pick up signals as far away as 1110 KFAB in Nebraska reliably, depending on atmospheric noise and man-made interference. Note: No responsibility accepted due to injury or damage that may be caused in building or using this Radio.
Another medium wave radio station closes down in the UK. Global's 1548 AM transmitter is taken off the air . Back in October 1973 we heard Kenny Everett, Maggie Norden, Robin Houston, Dave Cash, Tony Myatt and Simon Booker and more.
This is a short video about an embarrassing incident I had when trying to erect a pirate radio aerial for medium wave.
Vintronics 1w AM / MW mono audio transmitter (show and tell) tested at our studios Visit sjvbroadcastservices.com for more details on this product￼ This AM Transmitter operates between 1024KHz and 1600KHz in the Medium Waveband (AM Band) and is designed to be a reliable and stable unit. It is capable of delivering over 1 watt of RMS power into a short length aerial. It can usually deliver 1.5 watts cleanly driven to 100% modulation. The Transmitter circuit design employs a Colpitts FET oscillator in a Phase-locked loop circuit for accuracy and ease of frequency selection. It is also very stable and therefore does not drift off frequency. The Phase Lock circuit provides selection in 1KHz steps, so that the unit can be used in either Europe, which has 9KHz spacing between channels, or in the USA and other parts of the World where 10kHz is used between channels. A rugged Power MOSFET is also used on the RF output stage, which drives the output toroid and variable tuning capacitor. High voltage rated components are used in the output section. Audio modulation is series-derived using a pair of Darlington Power Transistors. These are in turn driven by an audio level control chip which allows the transmitter to achieve maximum modulation at all times, whatever the audio source and nominal level is, within reason. (CD player, mixer, PC etc) Housed in a Steel box with ABS front and rear panels. Ventilation holes to improve air flow for component cooling. A fan is used on higher output models. Comes with 4.5 metre cable as suitable Aerial. More information is available from sjvbroadcastservices.com CAUTION A licence is required to operate this equipment in the UK.
In Europe many maritime stations are there in North America..mostly the 160 amateur radio band
My Antenna Setup for Shortwave and Mediumwave Radio Hey gang...covering a bit of old ground here today, but I thought it might be helpful to make a somewhat concise video detailing my antenna setup, from the trees in my backyard to my radio, so to speak. Most of the components of this random-wire antenna setup (wire, coax, connectors) can be found at 🤍. Here's a link to "lowbander," the seller of the 9:1 transformer: 🤍
8 March 2022 Unboxing Ebay AM Medium Wave Broadcast Transmitter 1 Watt and online instructions is very easy to change. 🤍 My Blog 🤍 My other backup channel 🤍 My Reddit page 🤍
Mediumwave radio propagation characteristics
Provided to YouTube by Columbia Medium Wave · The Sutherland Brothers The Sutherland Brothers Band (Rewind) ℗ 1971 Sony Music Entertainment (UK) Ltd. Released on: 1971-06-26 Producer: Muff Winwood Guitar, Percussion, Steel Guitar, Vocal, Composer, Lyricist: Gavin Sutherland Producer: Richard Digby-Smith Guitar, Harmonica, Piano, Vocal: Lain Sutherland Bass Guitar: Kim Ludman Drums, Percussion: Neil Hopwood Auto-generated by YouTube.
In today's video we breakdown how different mediums affect wave speed of electromagnetic and mechanical waves. We also include several checks for understanding throughout the video. Thanks for watching, hope you enjoy and have a positive, productive day!!! Video quiz: 🤍 Check out our science courses at: htttps://fsicourses.net Shop for our merch at: 🤍
Easter Monday March 24, 2008: RTÉ Radio has closed down its last Medium Wave transmitter at Tullamore, County Offaly, after providing the radio signal for the station's programmes for the last 82 years. The move has been taken, for what's described as 'economic and environmental' reasons. But some listeners have complained that it will further reduce their variety of programmes.
Absolute Radio Station Marker On A Roberts R300 Transistor Radio. Is this the beginning of the end?
If you enjoy my content, consider buying me a coffee: 🤍 On the 3rd of January 2023, RTL decided to shut down its longwave broadcast from the gigantic Beidweiler transmitter in Luxembourg. This ends the life of one of the most powerful longwave broadcasts in the world, after a history of 90 years. License codes: SMWPKQVEH2JL2MJ1
Only been 1 hour but this antenna definitely works and does what it's designed for
00:00 Introduction 00:44 SV2CZF antenna 02:05 Tecsun AN-200 antenna 03:08 Homebrew Box antenna 04:14 Conclusion & overview A comparison between three external medium wave antennas. If you don't want to see the whole video, the self made Homebrew Box antenna wins for performance, but the SV2CZF is best for portable outdoor use. The Tecsun AN-200 is the best all rounder.
I've finally discovered the source of the dreadful interference on medium and short wave radio...
How increase the poor gain of an inside rod antenna by using a loop antenna. It is composed by a 93cm hula hoop, 11 turns of 0,4mm wire and a 700 pF variable capacitor with insulated knob. The coil and the capacitor are connected in parallel. The loop antenna will work in the range 280-700 kHz but if you want go down with the frequency you can add a selectable (by a switch) 680 pF capacitor in parallel to the variable capacitor. In this case the frequency comes down another 80 kHz.
Specifications below: This is a junkbox project, I built this transmitter from the parts I found at home. Original circuit from this site: 🤍 Modification: This transmitter is built for medium wave band (530 - 1600 kHz), tube is a PL504 line output pentode from an old TV set. The transmitter is tuned to 1379 kHz (crystal stabilized) I did not test the maximum range, but with a 3m long wire I can clearly receive from 20m. The modulator transformer is driven by a very simple one mosfet audio amplifier.
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Wave Motion is the propagation of disturbances, produced on one part of a medium by the vibration of its particles, to all its other parts. Waves transfer energy from one position to another position of the medium and not the matter. #physics cbsc class 12 #physics cbsc class 11 #physics cbsc class 10 #physics cbsc class 9 #physics cbsc class 8 #physics class 12 #physics class 11 #physics class 10 #physics class 9 #physics class 8
Only $5 for 10 PCBs and every new member get $5 bonus. + Express 24 hour / 48 hour service on 🤍 I have often seen the need for a low power DIY AM transmitter for the MW band, that would allow me to stream music throughout the house and test and use the tube radios that I restore. I wanted to make it an addition to my ‘under the shelf’ test modules. So, off I went, looking for ideas and inspiration for the design. It didn’t take me long to realise that what was available was either incredibly simple and low quality, or too complex for my needs. Then I found Charles Wenzel’s website (linked below). Reading through the description of his low power AM transmitter project, I realised that I would probably not be capable of designing a better circuit, so I did the next best thing: I wrote to him and asked for permission to do a PCB project build of his design. He kindly approved, and here we are. I made a few changes - as we all do - but the principle is his. The possible errors are all mine. The transmitter complies with the legal power limits and the initial tests prove that the range is more than sufficient for my needs. Building this project also led me to think further about how I can improve on my build, and that is something I will be doing in the future. When I am satisfied that I have a ‘final’ design, I will share the PCBs on PCBWay’s website, should you wish to order your own. Enjoy the video. Charles Wenzel’s project page: 🤍 Variable oscillator option: 🤍 You can now support the channel: 🤍 🤍 Other channels mentioned in this video: 🤍DavidTipton101 #tuberadios #antiqueradio #radiorestoration HUNDREDS OF OTHER VIDEOS TO CHOOSE FROM_ DIY TEST GEAR: The title says it all: 🤍 RESTORATION BUILDING BLOCKS: A series of videos showing detailed steps used the restoration process of tube equipment: 🤍 HowTo's: Various videos on some simple techniques and projects: 🤍 See also playlists on some other completed restoration projects. PHILIPS BX750A: 🤍 TELEFUNKEN OPUS 2114: 🤍 SABA UW-175-Z 3D: 🤍 GRUNDIG 1070: 🤍 SCHAUB-LORENZ GOLDY 58 type 3020: 🤍 BUSH VHF64: 🤍 GRUNDIG 3060A: 🤍 TELEFUNKEN OPERETTE 8: 🤍 GRAETZ SUPER 171W: 🤍 LOEWE-OPTA MAGNET 3737W: 🤍 BRAUN ATELIER 3: 🤍 LOEWE-OPTA TRUXA STEREO 4741W: 🤍 GRAETZ COMEDIA 616: 🤍 SABA FREIBURG W2: 🤍 GRAETZ MUSICA 4R417: 🤍 You may also be interested in ... CAPACITOR LEAKAGE TESTER: 🤍