Wide-band WebSDR

[Azt]

this is an awsome page where you can listen to and control a short-wave receiver located at the amateur radio club ETGD at the University of Twente. In contrast to other web-controlled receivers, this receiver can be tuned by multiple users simultaneously.
Enjoy it!

You can hear code morse and the most weird communications if you play around with the bands.

An example: Frequency : enter ->14017.81

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

[Operator]

See this (http://projectavalon.net/forum4/showthread.php?36500-Ham-radio-information-needed&p=721887&viewfull=1#post721887) post .... that whole thread may be of interest to you

[Azt]

Thanks operator indeed just realized you added this URL there so mods feel free to merge this threat. Sorry for not finding it before.

[Nick Matkin]

Something I've been meaning to post for a while, although slightly off topic for this thread...

If you need to send (smallish) amounts of data from one place to another, where the receiving person is untraceable, short-wave (high frequency) radio is a viable option. Particularly if you use something as crude as Morse code. How many folks do you know who can read it in the 21st Century? (Other high-tech radio data modes are available.)

The transmitter site is hard to trace and can be moved about. It would be much harder to trace than phone or internet-connected computer, especially if transmissions are kept short.

I'd be surprised if any security services pay much attention to Morse signals - although they'd be pretty naive if they completely ignored them.

There are various ways to send/receive Morse these days, but simple hand-sent code (particularly if 'badly' sent) is not too easy to decode by machine.

A simple Morse transmitter is easy to build by someone with a little electronics background, and any of the internet-linked remote receivers mentioned above could be used to receive it. However, using the internet to do this rather defeats the object. Use a proper short-wave radio out in the forest!

Nick

PS: I can't claim originality for any of this. It's been going on in war zones for 100 years, although complex encrypted satellite communications would be the way to go now. But what if you don't have access to that technology...?

[Operator]

Something I've been meaning to post for a while, although slightly off topic for this thread...

If you need to send (smallish) amounts of data from one place to another, where the receiving person is untraceable, short-wave (high frequency) radio is a viable option. Particularly if you use something as crude as Morse code. How many folks do you know who can read it in the 21st Century? (Other high-tech radio data modes are available.)

The transmitter site is hard to trace and can be moved about. It would be much harder to trace than phone or internet-connected computer, especially if transmissions are kept short.

I'd be surprised if any security services pay much attention to Morse signals - although they'd be pretty naive if they completely ignored them.

There are various ways to send/receive Morse these days, but simple hand-sent code (particularly if 'badly' sent) is not too easy to decode by machine.

A simple Morse transmitter is easy to build by someone with a little electronics background, and any of the internet-linked remote receivers mentioned above could be used to receive it. However, using the internet to do this rather defeats the object. Use a proper short-wave radio out in the forest!

Nick

PS: I can't claim originality for any of this. It's been going on in war zones for 100 years, although complex encrypted satellite communications would be the way to go now. But what if you don't have access to that technology...?

Very good observation, needed to be said indeed :thumb: Thanks !