Julie,
You *can* just select RTTY (or CW) in Fldigi and operate just as you
would with PSK with the KX3 (or K3) in DATA A mode - you may have to
select REV (or INV) in Fldigi for RTTY since the rig is in USB and RTTY
normally uses LSB - CW will not care about the sideband selected.
Running that way, you are depending on the filtering in Fldigi to
adequately separate the signals - you can enhance that by reducing the
waterfall display width using the K3 (or KX3) shift and width (or HiCut
and LoCut if that is easier for you) controls to zero in on the desired
signal and eliminate interfering stations on the side (it also works
that way for PSK when things get crowded and there is a strong adjacent
signal reducing the sensitivity of the K3 by the AGC action).
It is usually easier to use MMTTY for RTTY operation and AFSK A mode on
the K3/KX3. AFSK A defaults to LSB, and the K3/KX3 and MMTTY displays
the mark frequency (as is normal for RTTY operators). There is no
waterfall, you tune in the desired signal, and if the band is crowded,
reduce the K3/KX3 filters to isolate that signal.
I would suggest you try the Fldigi approach first because you are
already set up for that and familiar with its operation in PSK.
Then for RTTY begin to try out MMTTY to see if that works out better for
you - if so, use it, if not, go back to Fldigi.
73,
Don W3FPR
On 6/2/2014 2:49 PM, [email protected] wrote:
Hello to all and THANKS in advance for enlightening me on fldigi and flrig used
with KX3 and K3.
We havwe been doing fine with fldigi alone (no flrig) and PSK on KX3 and K3.
Now Larry (my husband K4MWE) wants to branch out to RTTY and to try CW via
fldigi.
(Yes, we want to learn to hear CW but Larry's hand is not going to be able to
transmit with the key he bought years ago.)
So here is the question:
In PSK I grasp that the bandwidth on the KX3 or K3 is set wide to establish the
waterfall.
For RTTY I understand that the radio has the special dual PB filter, BUT do I
use it OR do I still set the wide filter for the waterfall?
(I tried using the RTTY filter of the radio and the waterfall was 2 narrow blue
tracks.)
If RTTY usually is at 14080 and above then do I want the waterfall to start
lower than that?
Bumbling along on the digital learning curve...
73,
Julie KT4JR
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