Or perhaps OOKPWM? That was the only available modulating technique for
spark transmitters. For all it's apparent simplicity, it is still
possible to create a rotten signal, and it is notoriously difficult to
decode ... unless you're a human being.
My modest home station is comprised of only a K3, P3, RemoteRig
RRC-1258, Winkey, 3 paddles, and one hand key, and the "behind the desk"
part certainly does not look like "wireless." 😉
73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County
Jim Brown wrote on 4/1/2022 3:06 PM:
On 4/1/2022 2:35 PM, kevin wrote:
It is more accurately referenced as Discontinuous Wave.
Actually, it is 100% amplitude modulation of a carrier by a
rectangular wave train. That modulation excites non-linearity in the
transmitter signal chain and produce intermodulation distortion that
is heard as clicks.
73, Jim K9YC
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