Re: KKOH NV DX Test Heard in Central Indiana
Dave,toggle quoted messageShow quoted text
Congratulations on the reception! We provided KKOH with the DX Test material which included the Morse Code ID’s that you heard. These were recorded at 700 Hz and 10 words-per-minute. The test also included various sweep tones, and telephone off-hook sound effects.
A few years ago while serving as CPC Chairman, I enlisted the services of a friend who is a licensed audiologist to test lots of different test material. This included Morse Code, sweep tones, marching band music, etc.
The tests determined that sweep tones were the most effective at cutting through noise, followed by Morse Code. Morse has the advantage of triggering the “pattern recognition” part of our brains. This is why we can sometimes make out a familiar song on a weak station, but can’t quite copy the identification.
Still waiting to review my tapes—not heard “live” but did manage to log a nice ID from Radio Coro, which is a new station and country for me.
Paul is in discussions with two other stations about DX Tests, and if he’s successful, we’ll be providing the DX material for them as well.
Les Rayburn, N1LF
121 Mayfair Park
Maylene, AL 35114
Member WTFDA, IRCA, NRC. Former CPC Chairman for NRC & IRCA.
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