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 _______________________________________________ IRCA mailing list [email protected] http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: [email protected] _______________________________________________ IRCA mailing list [email protected] http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: [email protected]
