Alan - What kind of antenna are you using for this? - Gregory > -------- Original Message -------- > Subject: Reviews of Technologies and Books I like > From: Alan Sondheim <[EMAIL PROTECTED]> > Date: Sat, January 07, 2006 11:31 pm > To: [email protected] > > Reviews of Technologies and Books I like > >
> > NASA INSPIRE VLF-3 radio receiver kit. This kit - for building a very low > frequency radio - costs around $80 and includes around 75 components. > You'll need a low-power soldering iron and other (minimal) tools; the > assembly takes about four hours - afterwards I felt I could build anything > (not true of course). The radio is very high gain, has a built-in filter, > data and audio outputs, and mic input on one channel (in order to describe > time and location for example). VLF is fascinating; I'm using the signals > in my work (spherics, whistlers, moans, insects, passing bikes, dawn > chorus, etc.), modifying them with Audiomulch or some such. Check out the > INSPIRE site - it's terrific. A VLF-3 is also online; you can pick up the > signals through the Net. >
