http://kb6nu.com/numbers-station-on-35285-last-night/ My personal adventures in amateur radio Sun, 05 Sep 2010 20:19:10 +0000 hourly 1 http://wordpress.org/?v=3.0.1 http://kb6nu.com/numbers-station-on-35285-last-night/comment-page-1/#comment-303000 Hamilton Fri, 05 Dec 2008 07:10:53 +0000 http://kb6nu.com/?p=1451#comment-303000 If your spacing into groups of five letters is what you heard, that corresponds with a memory from my crypto class at Texas A&M that cyphertext is sent in groups of five letters in some cyphers. Kind of cool stuff! For anyone interested, here's the frequency distribution from the sample, (useful if it's a simple substitution cypher): Q - 2 F - 3 W - 3 N - 4 X - 5 O - 5 L - 4 J - 3 D - 2 Z - 5 V - 1 B - 4 M - 4 R - 4 H - 3 K - 1 I - 2 A - 2 C - 3 U - 1 E - 1 T - 3 If your spacing into groups of five letters is what you heard, that corresponds with a memory from my crypto class at Texas A&M that cyphertext is sent in groups of five letters in some cyphers. Kind of cool stuff! For anyone interested, here’s the frequency distribution from the sample, (useful if it’s a simple substitution cypher):
Q – 2
F – 3
W – 3
N – 4
X – 5
O – 5
L – 4
J – 3
D – 2
Z – 5
V – 1
B – 4
M – 4
R – 4
H – 3
K – 1
I – 2
A – 2
C – 3
U – 1
E – 1
T – 3

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