I would re-calibrate when I change to 144-148 MHz. That way I'd be sure.
I'd probably save that in a different memory slot than the 144-174 MHz.
Zack W9SZ
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On Tue, Apr 22, 2025 at 10:35?AM Kenneth Roberts via groups.io <kenr313=
[email protected]> wrote:
Just received my H4. If I calibrate for a range of, say, 144-174 MHz, can
I change the range to 144-148 without recalibrating? I guess I'm asking
under what circumstances is recalibration necessary?
