Code groups were reused several times, and it was these Depths that " B-Dienst " used to help reconstruct the cypher.
12.
Likewise, if code groups were used to indicate a switch to a new chart, this could also have weakened the code unnecessarily.
13.
Sentences are strings of words or code groups which are also separated from other sentences by a silent period of at least five dot durations.
14.
The word per minute rate would be close to the PARIS standard, and the code groups per minute would be close to the CODEX standard.
15.
The Commission specifies Morse code test elements at 16 code groups per minute, 20 words per minute, 20 code groups per minute, and 25 words per minute.
16.
The Commission specifies Morse code test elements at 16 code groups per minute, 20 words per minute, 20 code groups per minute, and 25 words per minute.
17.
Therefore, yielding a negative " b " value would entail the coded group as having scored less than the mean of all groups on the dependent variable.
18.
For example, for the Radiotelegraph Operator License, the examinee must pass a 20 word per minute plain text test and a 16 word per minute code group test.
19.
For commercial radiotelegraph licenses in the United States, the Federal Communications Commission specifies tests for Morse code proficiency in words per minute and in code groups per minute.
20.
After using anywhere from 54 to 100 groups for the kana and ten groups for the numbers zero to nine, there were at most 188 unassigned code groups remaining.
