[ARC5] CW/MCW

[Robert Nickels]

On 11/11/2013 3:11 PM, Richard Knoppow wrote:
> The filter people are thinking of was used with aircraft radio range stations.

A few years ago when I was researching the Heath HT-4 light aircraft 
transmitter, I came across this excellent video showing a modern-day 
reconstruction of a four-course radio range:

http://www.youtube.com/watch?v=p-VqtNY8vpw

Of course all the original ranges are long gone, so this is really the 
only chance many of us will have to see and hear what it was like and 
how it worked.    The value of these filters will be easily apparent 
;-)   This model radio range operates on 28 MHz.

Sorry for the redundancy to those who are already aware of this video, 
but I thought it was worth passing along again.

73, Bob W9RAN