80
• In diversity mode, VFO B can still be on a different frequency, acting
as a holding register for another frequency of interest; tapping [A/B]
will make this the new VFO A and diversity frequency.
HDR RECEIVE (K4HD)
This section will be completed in conjunction with release of the K4HD
model (in progress).
AUDIO EFFECTS (AFX)
Since the K4 has both left and right audio channels, it can provide
simulated stereo or other effects to reduce operating fatigue. This
requires the use of stereo headphones or dual external speakers.
Audio effects don't apply when Dual Receive or Diversity is in effect,
since in both cases the two receivers are already split into left and
right channel outputs.
Two audio effects (AFX) are available:
• simulated stereo
• audio pitch mapping (low-to-high signal pitch mapped from left to
right); this is targeted primarily at CW mode, creating a "sound stage"
effect that makes signals at different pitches easier to single out
DIGITAL VOICE RECORDER (DVR)
Recording and Playing Receive Audio
The K4 can record and play received audio from both the main and
sub receivers. Recording time is 90 seconds, implemented as a
continuous loop. During playback, the AF GAIN and SUB AF controls
are used to adjust volume.
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