Radio Ramblings

So, the release of a new version of FDMDV reminded me of one of the things that got me interested in software radio to start with.
FDMDV takes a voice stream and puts it through a MELP codec, which gives a stream of 54 bit frames.  There are then 2 bits of text data added, and [...]

[Read more →]

The latest version of Tony Parks’ Softrock is soon to be released.  The first reviewer said:
> Realizing the drawbacks of the “aliasing” using no filter it was sure
> a lot of fun jumping from 80M to 40M to 20M with just the DIP switch
> freq select. Of course “you” shouldn’t do this but I [...]

[Read more →]