In theory the transmitted signals are the same.
In practice they are often very different.
As others have pointed out, many AFSK operators overdrive their mic inputs,
or transmit audio tones whose frequency is so low that the second (and third
and fourth) harmonics fall within the bandpass of the transmitted sideband
signal. The result is broad, splattering signals or signals with multiple
spikes beyond the primary RTTY signal. It's not a pretty sight, and the
receiving end definitely knows the difference.
-larry
K8UT
-----Original Message-----
From: Gedking@aol.com
Sent: Tuesday, August 23, 2011 12:46 PM
To: rtty@contesting.com
Subject: [RTTY] (no subject)
Why is everybody hung up on FSK when The AFSK signal leaving the Ant is
the same and the receiving end don't know the difference???
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