G0VQY's Amateur Radio Blog

What's on the mind of a UK ham radio operator?

  • Home
    Home This is where you can find all the blog posts throughout the site.
  • Categories
    Categories Displays a list of categories from this blog.
  • Tags
    Tags Displays a list of tags that have been used in the blog.
  • Bloggers
    Bloggers Search for your favorite blogger from this site.
  • Team Blogs
    Team Blogs Find your favorite team blogs here.
  • Login
    Login Login form
Subscribe to this list via RSS Blog posts tagged in SDR

Posted by on in Interesting ham radio websites

Ever heard of SDR? This stands for Software Defined Radio and basically it means a radio that uses your computer to receive, transmit and basically function. I don't really know an awful lot about these type of radios so I'm not going to talk about using them instead of your traditional amateur radio transceiver.

I wanted to tell you about a few websites that use software defined radio to transmit over the Internet. There are a few guys over here in Europe and over in the States who have set up websites that enable you to listen to their software defined radio through the computer. Some of the stations only have one band to listen to, others have various bands using different types of antenna. You basically tune into their website, choose the band you want to listen to, type in a frequency or move a slider control and that's it, you are listening to what that particular station can hear, whether that be the East or West coast of the states, down in Romania, or in the Netherlands.

There are two that I listen to on a regular basis, The US software defined radio site W4MQ is based in Virginia on the East Coast and enables you to listen to 3 bands, top band, 40 m and 20 m. What I really like doing is monitoring 20 m to see if I can hear myself, that is a lot of fun and it gives you a good idea of what propagation is like. Another one that unfortunately shut down a couple of months ago because they had to move rooms is based in the Netherlands. This had various bands including 40, 15 and 20 m and being so close to home meant I was able to monitor myself on 20, 15 and 40 m, plus listening to all the other stuff. They will be back online at some stage, when it will be I cannot say, you'll just have to keep monitoring their website where they have been kind enough to keep everyone updated on the situation.

I have included a few links for you including W4MQ which transmits 24/7. Please be aware that the website often crashes when too many people are using it at the same time. If you get a message telling you that the site is too busy then either leave it a little while, or keep clicking refresh page and sometimes that works if somebody suddenly leaves the website. Also, you need to have JavaScript enabled on your computer. If you haven't got it then it's free to download.

http://www.websdr.org/

http://w4mq.com/

http://websdr.ewi.utwente.nl:8901/

Hits: 16849
0