Various - for the Brooklyn rooftop stuff I just used a ten-foot wire. The
other end of the radio has to be grounded of course. Mostly I use a 6'
vertical antenna; I've also got a radio which picks up the magnetic field
- that uses a loop antenna (they're fairly easy to build). - Alan
On Thu, 12 Jan 2006, Gregory Severance wrote:
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.
For URLs, DVDs, CDs, books/etc. see http://www.asondheim.org/advert.txt .
Contact: Alan Sondheim, [EMAIL PROTECTED], [EMAIL PROTECTED] General
directory of work: http://www.asondheim.org .
