On a lark I looked up Jan 1949 to see wassup when I was born. Opening article on a noise-cancelling antenna said:

Noises " off " are kept off and man-made
static is silenced by B. I. Callender's Anti- Interference Aerial when
properly installed. Sizzling, crackling background noises caused
by electric vehicles, motor car ignition systems and industrial or
medical high frequency equipment—all these are suppressed and a
quiet background established for radio programmes. Reception is
improved, for a maximum number of programmes can be enjoyed.

------

So apparently EV's were a noise pollution problem even back then! 🙄

Tim

N6CC

On Sun, May 28, 2023 at 7:47 AM Al Klase <ark@ar88.net> wrote:

Yes, https://worldradiohistory.com/#Top is an outrageously good site. You can spend a lot of time there. Check it out if you're not familiar.

Al - N3FRQ

On 5/28/2023 8:46 AM, releazer@earthlink.net wrote:
https://worldradiohistory.com/Wireless_World_Magazine.htm

Wayne
WB5WSV
______________________________________________________________
ARC5 mailing list
Home: http://mailman.qth.net/mailman/listinfo/arc5
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:ARC5@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: https://www.qsl.net/donate.html
--
Al Klase - N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/
______________________________________________________________
ARC5 mailing list
Home: http://mailman.qth.net/mailman/listinfo/arc5
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:ARC5@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: https://www.qsl.net/donate.html