Practical wireless telegraphy; a complete text book for students of radio communication (1917)
Bucher, Elmer Eustice, 1885- · New York, Wireless Press, Inc · leaf 228
eceiving telephone. The measurement of the signal intensity is carried out as follows: A given transmitteris tuned to maximum strength of signals at the receiver, followed by connecting a variableresistance across the telephones, the resistance being reduced until the signals just disappearor are… … where C := current in the telephone without the shunt; R ^= resistance of the shunt for the least audible signal;T = resistance of tlic telephone. Now the value of C-a for the least audiblesignal varies with the frequency of thecurrent flowing through the telephone, theimpedance of its windings,…
Telegraph, Wireless
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