AM_FREQ_RANGE_LOW
v->rangelow = AM_FREQ_RANGE_LOW * 16;
.rangelow = AM_FREQ_RANGE_LOW * 16,
.rangelow = AM_FREQ_RANGE_LOW,
vt->rangelow = AM_FREQ_RANGE_LOW;
a->rangelow = AM_FREQ_RANGE_LOW;