I am wondering why you would want to use Diversity mode in RTTY, and how
you would actually make use of it. Diversity mode works by feeding two
slightly different signals into a single brain that is programmed from
birth to cope with two such inputs (two ears) and synthesize them into a
combined information stream, using the phase and amplitude differences
to add information value. The RTTY decoders I am familiar with don't do
that; they are monaural.
If you want to use two separate monaural decoders on the audio inputs
from the two receivers, don't use diversity mode, just turn the subRX on
and let each decoder decode its own input stream. If the two VFOs are
not linked, each receiver would be listening to its own frequency
(SO2V), but if you link the two VFOs (CONFIG:VFO LNK = ON), you can
force both receivers to listen to the same frequency (presumably on
different antennas, else what's the point?).
This is different from "diversity decoding", which uses two different
decoding algorithms on a single audio stream so you can compare the
results of the two algorithms and pick the one that works best under the
current instantaneous conditions. You don't need a second receiver for
that; you can use an arbitrary number of decoders using the same channel
of the same sound card and get the benefits of diversity decoding even
with a single receiver.
73,
Rich VE3KI
W1UE wrote:
When the K3 is put into Diversity and the mode is RTTY, the Line out Audio
for the Sub Rx disappears.
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