[78-L] The Fading Sounds of Analog Technology ^

[Michael Biel]

On 3/5/2011 3:48 PM, Stewart, Joseph R wrote:
> David Lennick mentioned "...the sounds of other AM/FM stations heard between dialing from one to another... short wave radio 'sounds'
>
> Now hold on there, pardner.
> Since when are these sounds gone, faded or even extinct? ...  There are also still plenty of SHORTWAVE radios in the world, and while those "sounds" aren't as plentiful as they used to be, they're still there.

Ah, but there are some short-wave sounds that are now rare, such as the 
cold-war era sound of jammng.  It used to be very common, but is rarely 
heard anymore.  It was usually like a buzzsaw with some fake morse 
beeping mixed in.  The sound that is completely extinct is what was 
credited to Soviet over-the-horizon radar which was a woodpecker 
knocking-chirping sound that would start at the high audio and RF 
frequencies and gradually go lower in pitch as well as RF frequency on 
the dial.  It disappeared the moment the USSR disappeared.

Mike Biel  mbiel at mbiel.com

>    And hams around the world, along with a lot of government agencies air navigation, etc., still utilize reduced-carrier single-sideband for voice communication on both shortwave frequencies and on the VHF/UHF ham bands.
>
> So there.
>
> Randy Stewart
> Arts Producer
> KSMU
> 901 S. National
> Springfield MO 65897