[Lowfer] WD2XES WSPR Again

[Johan H. Bodin]

Stewart,

yes, an MP3 player is small and cheap but how good is the MP3 
compression algorithm? I don't know how it works but there are many MP3 
encoders with a lot of compression options. Is MP3 able to convey the 
sub-Hz accuracy required for some modes?

73
Johsn SM6LKM


Stewart Nelson wrote:
> It seems that one could build a QRP beacon exciter around an old MP3 player.