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This will happen whenever:
• receivers are using different antennas
• receivers are on different bands, or require different band-pass
filters within the same band
• receivers have differing front-end gain settings (preamps and
attenuators)
• dual panadapters are being used (the KRX4 includes its own A-to-D
converter; when both are used, sample streaming bandwidth is
improved)
DIVERSITY MODE
Diversity receive can improve copy of weak and/or fading signals,
especially on the lower bands (160-40 m). It uses both receivers, each
on a different antenna. If the antennas have differing polarization
and/or physical spacing, copy on one receiver will often be better than
on the other. The effect can be dramatic when headphones are used.
Note: Diversity requires a K4D or K4HD, since separate antennas are
needed for the two receivers and therefore separate A-to-D
converters.
To use diversity mode:
• Hold the [DIVERSITY] switch to turn diversity on. This will put both
receivers on the frequency of VFO A. The DIV LED above VFO A will
turn on.
• Be sure to put the main and sub receivers on different antennas.
(See RX Antennas.) The K4 is particularly well suited to diversity use
since up to five different antenna inputs are available. Some
constraints apply to receiver assignments; see ANTENNA SELECTION.
• The K4 must be configured to allow stereo audio. Diversity requires
either headphones or dual external speakers. If you're using dual
external speakers, make sure that MENU: Speakers, External is set to
2.
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