Yaesu FR-50B, Instruction Manual

Page: 13 / 22

Page 13 of 22
The sub-divisions on the main dial are 10 kHz points. The
graduations on the tuning knob skirt closely represent 1 kHz
divisions. The upper scale on the main dial is used for 10 meters
but in this case the knob skirt graduations represent 2 kHz
divisions.
The knob skirt may be adjusted independently of the knob itself by
firmly holding the knob while turning the skirt, and can be set at
0 for 100 kHz points with a crystal calibrator. Since, on all
bands except 10m, the knob rotates two full turns for each 100 kHz
segment, a double numbering system is adopted on the skirt, thus,
read 0 to 49 kHz using the black numbers and 50 to 100 kHz using
the red numbers.
A plug-in 100 kHz crystal is available as an optional extra.