Re: [IRCA] Sweep tone/Morse Code CD

["Les Rayburn" <les@xxxxxxxxxxxxxxxx>]

Patrick,

I’ll be happy to produce Morse Code ID’s and sweep tones in various combinations to meet your needs. I’ve got a library of stuff that has been very successful in the past. The sweep tones typically outperform Morse Code by a significant margin. We’ve proven this through on the air tests, and also using test subjects where we mixed sweep tones and Morse in with typical background noise from a channel in controlled steps. Sweeps could be successfully detected at much lower levels (db wise) than Morse alone. 

“Gimmick” sounds like bells, whistles, etc. were much less successful. The only exception is the “off hook” signal that your telephone makes. This sound was as effective as sweep tones. Let me know what you need. 

73,

Les Rayburn, N1LF


Les Rayburn, Director
High Noon Film
130 1st Avenue West
Alabaster, AL 35007-8536
(205) 621-7500
(205) 621-7505 FAX
(205) 253-4867 CELL
http://www.highnoonfilm.com

From: Patrick Martin 
Sent: Wednesday, January 12, 2011 7:10 PM
To: Mailing list for the International Radio Club ofAmerica 
Subject: Re: [IRCA] Sweep tone/Morse Code CD

Thank you. I'll pass that along too.

73,

Patrick

Patrick Martin
Seaside OR 
KGED QSL Manager

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