Interference from sodium lights

Interference from sodium lights

Post by Pushpendra S Khair » Tue, 24 Mar 1998 04:00:00

hello everyone,

Is there a solution to the sodium light interference
which sounds like an intermittent BUZZZZZZZZZZZZ.... ???

 
 
 

Interference from sodium lights

Post by Christopher A. Kin » Tue, 24 Mar 1998 04:00:00



> Is there a solution to the sodium light interference
> which sounds like an intermittent BUZZZZZZZZZZZZ.... ???

A slingshot...? :^)

Seriously, though, if the noise is radiated and not being transmitted
through the AC power lines, there's probably not much you can do, apart
from moving the reciever as far as possible away from the lights.  Or
put up an outdoor antenna with as good a DC ground as possible, in an
effort to trounce the noise with as much true signal as possible.  That
won't solve any weak-signal DX problems, but your signals in the evening
are generally stronger anyway, so it would at least be a start.

C.K.

 
 
 

Interference from sodium lights

Post by John Dot » Tue, 24 Mar 1998 04:00:00

1. Identify the malfunctioning light. The bad ones flicker and cycle on and
off.

2. Call whoever's responsible for maintainence, either the Department of
Public Works or the electric power company.

Around here, this procedure fixes the problem within 48 hours.

--
John Doty  "You can't confuse me, that's my job."

 
 
 

Interference from sodium lights

Post by Ian Millet » Tue, 24 Mar 1998 04:00:00

Hello Pushpendra,

Regarding your question:

Quote:> Is there a solution to the sodium light interference
> which sounds like an intermittent BUZZZZZZZZZZZZ.... ???

I had a similar problem with a faulty street light which took several
weeks to trace then about a month before the utility repaired a short in
the underground feeder to the pole. During that time medium wave through
FM listening was affected.

Do you get the interference day and night? Check light poles around your
block. There may be a flickering bulb or one that does not turn off
during the day.  If you do suspect a particular pole check it for a
metal tag with an ID number. Report the location and ID to the utility.

Ian, n3cva
Baltimore.

 
 
 

Interference from sodium lights

Post by Christopher A. Kin » Wed, 25 Mar 1998 04:00:00


> 1. Identify the malfunctioning light. The bad ones flicker and cycle
>    on and off.
> 2. Call whoever's responsible for maintainence, either the Department
>    of Public Works or the electric power company.
> Around here, this procedure fixes the problem within 48 hours.

This is interesting; the noise is actually a characteristic of a faulty
lamp and not inherent in normal operation...?  I'll have to remember
that; thanks (street lights get installed in our subdivision later
this spring).

I was thinking that it might have been some sort of a duty cycle issue,
as is the case with solid state dimmers.

C.K.

 
 
 

Interference from sodium lights

Post by Keith Arno » Fri, 27 Mar 1998 04:00:00

On Mon, 23 Mar 1998 13:53:00 -0500, Pushpendra S Khaira


>hello everyone,

>Is there a solution to the sodium light interference
>which sounds like an intermittent BUZZZZZZZZZZZZ.... ???

=========>
Calol the power company.  It's their job.

??? - Keith - 182L/STOL - Chino, California
         N33 58' 46"  W117 38' 41"