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McClellan gave a message of 39 characters followed by a message of 114 characters earlier. A lot of long messages today.
The "typical" (many times a day) frequencies for simultaneous EAMs are 4724, 6739, 8992, 11175, 13200, and 15016 kHz, all 6 carrying the same audio. These are not the only frequencies that might carry parallel EAM transmissions, they are just the most common. How clearly you hear each frequency will depend on propagation. How many echos you hear in a transmission, and how deep they are, will also depend on propagation.
When the source is airborne the maximum number of frequencies can be smaller, depending on the platform. Some aircraft types only support 3 or 4 parallel networks / transmissions on HF. When the source is airborne you might also find the same EAM on UHF.
T!
Land5urfer, the two syllable, or two word, tactical call signs are a standard. You will hear such very often. Some change as frequently as every 6 hours, so the same station can be heard with multiple callsigns during a flight, and sometimes a station will have different callsigns on different nets or frequencies. So that you will swear you heard that voice or that sound to the transmitter using a different callsign a minute ago, and you might be right. Also the “for” portion of the message is frequent, a message can be “all stations” or it can be “for” specific recipients.
T!
Very strong signal here in Troy, Ohio at 2220 utc
73
vince ka1iic
Yeah I have it here just now at 2045z as "For New Book".
