Don't trust the net too much

[johnl at radix.net]

> A transistor radio puts out such a minute amount of RF (at 455 KHz and/or
> 10.7 MHz, the IF freqs of the radio) that most insturments designed to
> pick up RF can't detect this stuff from more than a few feet away.

The problem is caused by local oscillator radiation interfering with
the ILS receiver. Tune a FM broadcast band receiver to the right frequency and
you get local oscillator radiation at (f + 10.7 MHz), right in the
middle of the aviation band. 

//----------------------------------------------------------------------------
// John A. Limpert
// johnl at radix.net