Site Links - Amateur Radio Topics

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RADIONOTICIAS

Amateur Radio Download Page

There must certainly be a lot of these on the Internet, but this page offers a good mixture for various applications. Thus we find the following areas represented here:

• Legislation and regulations concerning amateur radio
• Low-frequency decoder
• Sat programs
• DSP applications
• Telex and packet radio programs
• Morse practise programs
• Weather satellite image evaluation
• Log book programs
• Locator programs
• Collected test questions, etc.

http://www.qsl.net/df0che/dwn.htm

Radio Waves below 22kHz

Have you heard of Schumann resonances? Or can you sketch a Whistler receiver? If you want to close such gaps in your education, just pay a visit to this Italian homepage. It can be described as compulsory reading for those people who want to get involved with the interesting area of VLF, ULF or ELF. Anyone landing up here will find innumerable recommended links to follow.

Address:
http://www.vlf.it

Transmitter Tour

What would it be like, just for a change, to go on a technical tour through various radio stations such as "Voice of America" etc. To savour the technical details of such high powered transmitters, as revealed in many illustrations and detailed explanations? Then just go to "Jim Hawkin’s Radio and Technology Page". The author has assembled more than 300 photos, and there’s also plenty of material on the history of wireless transmission technology. Naturally, there are also sub menus and links for such modern subjects as DAB, etc. Extremely entertaining and never boring! If you want to learn a bit about the principles, then just enjoy "Electromagnetic Radiation explained"

Address:
http://hawkins.pair.com/radio.shtml

A Site for the practising RF engineer

That’s what our next site’s called. A lot of stuff has been assembled here that people need more and more frequently. Two very fine and well produced features are the tutorials on direct conversion receivers and fractional N synthesisers. But there is also a complete page containing nothing but links to companies who offer application notes for downloading. Another important thing, here you can finally download the standards for the various modern communications systems such as GSM, 2G, GPRS, WLAN, WDCDMA etc. onto your own computer.

Address:
http://www.rfengineer.cc/

RF-WEB

As down-to-earth as the name implies. A very comprehensive but very unimpressive site greets you, containing nothing but links to interesting aspects of radio frequency technology. But if you take a closer look at this list, then you will very soon be mentally begging the author’s pardon, because not only is there an unbelievable amount available here, but it’s a real Treasure Trove.

Address:
http://www.rfweb.com

Online Education

Internet learning is continually on the increase, in our specialist subject as well, so we’re giving two interesting links for better information here. The material available there is not intended for immediate downloading but for on screen training and/or further education. Professors, teachers and specialists have created the splendid lessons or learning packages, which makes for willing pupils. You’ll have no trouble getting stuck in here, so to speak.

Address 2:
http://www.iec.org/online/tutorials

RF-Cafe

This, as you might expect, is a site where you just sit back and have a good old rummage around. You will undoubtedly know of, or you’ll already have, a lot of the literature or software mentioned here, but the author never sits still and is always on the lookout for interesting new items (such as a waveguide filter designer).

Address:
http://www.rfcafe.com

Longwave links

Just for a change, here's something in German, and something for the community of longwave fans. This homepage is a must for anyone wanting to know more about this field and this technology.

Address: http://home.t-online.de/home/hhcuno/afu/ longlink.htm

G4FGQ's Software Site

An interesting page, put together in a way that's just right for the amateur and for anyone who likes fiddling about with RF projects. You can spend a lot of time here searching, investigating and downloading. Most of this site is about programs, all "home made" and all similar in appearance. So you know at once what it's all about, and you don't have to spend a long time in experimental operations. Very rewarding and highly recommended!

Address:
http://www.btinteret.com/~g4fgq.regp/#S102

Amateur radio links

There are some very industrious people in our amateur radio community, because here we have alphabetically listed links to every possible aspect of our hobby. So this is something that you're bound to need again and again, so that you can make a search more selective and make more progress. There's a lot of hard work behind this site.

Address:
http://www.dj6qo.de/intadar.htm

Useful links from electronics

Here's a Hungarian homepage which, with great attention to detail, brings together countless links relating to miscellaneous aspects of electronics. Just call something up and see whether there's anything interesting here for you!

OH2AUE

Right at the top of Finland there are some people who are unbelievably active on the microwave bands and are not frighten of anything (EME attempts soon). Looking around the homepage of Michael Fletcher you have to ask yourself, when did he learn all this and when does he build it all. Respect!

Address: http://www.kolumbus.fi/michael.fletcher/ index.html

Matjaz Vidmar

For readers of VHF Communications Magazine, Matjaz Vidmar, S53MV, is well known. Many of his interesting articles have been published over the last few years. He is a professor in Slovenia and has an enthusiasm for technology. His projects are very interesting and worth looking at again.

Address: http://www.ljudmila.org/hamradio/notune.html

SM5BSZ Home Page - Equipment for VHF DX

This is a simple homepage of the Swedish radio amateur, Leif Asbrink, SM5BSZ, who is a reader of the German version of the magazine, UKW Berichte. His web site has many interesting topics that are easy to access..

Address: http://www.sm5bsz.com/index.htm

University of Calgary

Homepages of universities are often a treasure chest for interesting publications. That applies to this Canadian web site.

Address: http://www.atips.ca/groups/rfic

Circuit Sage

It is simply joyful to browse in this extensive library. On this web site you can find basic articles, interesting Application Notes, many technical documents and many other interesting things.

Address: http://www.circuitsage.com/

Odysseus

This web site is a secret store of articles and tutorials on RF technology., particularly to the area of RFIC. They are very well presented even if you sometimes have to search for things. First class!

Address: http://www.odyseus.nildram.co.uk/

eHam.net

This site has something for every radio amateur but you have to spend the time to look around and find the things that interest you.

Address: http://www.eham.net/

Ian Purdie’s Amateur Eadio Tutorial Pages

The title says everything, there is a wealth of information on this site. As an example there are tutorials on Double Balanced Mixers and Baluns.

Address: http://my.integritynet.com.au/purdic/dbl_bal_mix.htm

Tutorial on Basic Link Budget Analysis

This tutorial is for anyone who has something to do with digital communications (today nearly everything in communications is digital) or base stations. This is a good look at such applications; it is meticulous and accurate but also understandable. The chapter on Communications Basics has some good calculated examples.

Address: http://www.sss-mag.com/pdf/an9804.pdf

Spread Spectrum Scene 

This homepage and Internet group should be visited regularly because there is always something new in the documents or tutorials.  The page selected is “RF Topics” because everything is fascinating and dealt with from basics. There is plenty more to find if you look further.

Address: http://www.sss-mag.com/rftopics.html

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