The Pitch is 650 Hz on the K3S. And the Mark for RTTY is the
standard2125 Hz.
PITCH should be set to the same as MARK in RTTY.
73,
... Joe, W4TV
On 9/19/2015 12:49 AM, James C. Hall, MD wrote:
In response to W4TV Joe's question:
The frequency offset for the 8-pole crystal filter is 0.00 Hz.
The Pitch is 650 Hz on the K3S. And the Mark for RTTY is the standard 2125 Hz.
I've got a new 400 Hz filter on its way so I'll see what the problem is. I just
hope it's not an RF board. I took ESD precautions very seriously while building
it so, fingers crossed.
73, Jamie
WB4YDL
Sent from my iPad
On Sep 18, 2015, at 2:30 PM, James C. Hall, MD <heart...@nwtcc.com> wrote:
Working with my newly constructed K3S today, I noticed that receiving through
the FL4 crystal filter (400 hz, 8-pole) was noticeably suppressed. Through the
FL3 (1.8 kHz) filter, an RTTY signal would be nice and strong with good S-meter
indications. Going to 400 Hz the signal would nearly be lost and I could not
decode it. Going to FL5 (250 Hz), the S-meter would pick up again with strong
signals.
There's not much to check on the Config menu except the FL4 GN and it's at max
(8 db) - not much change.
Is there something else I should do to deal with this ?
73, Jamie
WB4YDL
Sent from my iPad
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