>It was explained to me that these radio signals we're receiving are being >interpreted as tones. They are tones, with a reasonable objectivity. >So when we say that this tone represents a number, does that mean that the same >tone repeated a certain number of times? It's all a cycle of hypothesize, predict, test. Go back and look at the first message -- that's where numbers and arithmetic were introduced. First, we guess the tone labelled "G" is a delimiter; every "sentence" begins and ends with a G. So we see one B, two B's, three B's, etc. So we guess that they're demonstrating counting, and B is sort of a unit or tally marker. Then we see a funny structure containing B, BB, and B, separated by H. So we guess that H is something about addition. This is just a guess, of course, but the next "sentences" fit the guess, so it's a good one (and note that we're also getting supporting evidence for the "G sentence G" pattern.) Lather, rinse, repeat for the rest of the message. They explain subtraction (not quite the way we do it), multiplication, and division. Then equality. At that point, when they say (in their syntax) "B=B; C=BB; D=BBB; E=BBBB..." we can figure out that those tones represent the numbers one, two, three, four.... Is that what you wanted to know?