[TowerTalk] Differential Tuner - Good Idea?

[kd4e]

Can someone explain the plusses and minuses
of the differential tuner design for HF?

More of them are showing up and I have read
the market hype but not read a good discussion
of strengths and weaknesses.

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Thanks! & 73,
doc, KD4E
... somewhere in FL
URL:  bibleseven (dot) com