[RFI] RFI on 1.8 mhz

[Lee K7TJR]

 > what makes a street light noise unique?  

      Street lights for some reason have a very throaty low pitch to their sound.
 Although the frequency is fixed by the  line voltage, the harmonic content
 makes  the lights at least  here have a very distinctive sound. In addition,
 most but not all of these vapor type lights will start to cycle on and off on
 about a 1 miunte schedule as they begin to fail. The noise is generated
 mostly during the lamp firing process. As the light warms the noise will
 diminish in amplitude and usually just as the lamp gets pretty quiet it will
 switch itself off and after cooling for a bit it will fire again starting the
 noise all over again. Some bad lamps stay on all the time with their low
 pitched noise. Most cycling lights or non functioning lights are very easy
to spot at night. Usually an AM BC radio will easily pick up the noise from
 a bad light.
Lee  K7TJR