[Elecraft] K3: DRM listening?

Lyle Johnson kk7p at wavecable.com
Fri Dec 11 16:07:31 EST 2009


In general, DRM decoders expect a receiver IF of 12 kHz and a bandwidth 
of up to 20 kHz.  The K3 can provide neither without modification.

Some DRM modes are narrower and can be accommodated if the FM roofing 
filter (nominal 13 kHz) is installed.  But getting the IF output to the 
DRM decoder still requires modifications to the K3.

Some DRM decoders are free, others require a licensing fee.

WinDRM is different, being a mode designed for Amateur radio use, 
primarily for digital voice but also for file transfer.

73,

Lyle KK7P


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