Bob McGraw - K4TAX
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If one uses the Data A mode and uses the single USB cable between
the computer and radio, none of the other settings or values is
required. No VOX, no DTS, no DTR and the TX EQ is automatically
bypassed along with Speech Processing.
Keep it simple, use one USB cable for RX audio, TX audio, CAT
commands including PTT. Most hams seem to think they need 5 to
10 cables to make stuff work when in this case one will do
nicely. I run my K3S that way and it sure is nice plus it works
100% of the time with no need for futzing with levels, cables,
connectors or changes to the radio configuration.
On 1/9/2020 3:31 PM, Tom Schaefer NY4I
Yep. Always give the benefit of the doubt to Elecraft with the
little details like muting the front mic when in a Data mode :)
The mic input is muted during TX. BTW, you should
always select the CAT PTT Method because it eliminates
the need for a separate DTR or RTS input. RX audio
will trip VOX if you have the volume up to high if you
attempt to the VOX method.
On January 9, 2020 at
2:44 PM Tom Schaefer NY4I <thomasmschaefer@...>
Set MIC+LIN to ON.
(Page 55 of the manual).
If set to ON, and
MIC SEL is
set for FP or RP, the
present mic OR line input can be used
for transmit audio.
Setting MIC SEL to LINE overrides
the MIC+LIN menu
entry (its parameter becomes "N-A").
When MIC+LIN is in
effect, rotating the MIC control shows
MIC gain. Set MIC SEL to LINE to
adjust LINE IN gain.
You just have to be careful to not talk
if you have a mic connected as I believe the MIC is
hot while transmitting. I have not tested if the mic
stays hot in awhile though as I run with MIC+LIN OFF
and set it to LINE in (with a PF button programmed
The data mode you want is DATA A and
NOT PSK (that is for the internal PSK decoder).
The biggest change for people not used
to the K3 is that for digital mode like this you DO
want ALC deflection. You want to set it for the 5th
bar is barely lighting up. That is different than
other radios where you do not want ANY ALC
See page 34 and 30 for more info.
On Jan 8, 2020, at 9:29 PM,
Michael WA7SKG < wa7skg@...
I was helping a friend set up
his K3S for FT8 this afternoon. Haven't
played with one of those before, quite a
challenge. Our main problem was getting
audio into the transmitter. What finally
worked was to go into the radio menu and set
MIC SEL to LINE IN. Immediately made
contacts in Florida, Russia, and Japan.
PSKReporter showed reception all over the
US, Switzerland, Russia, Japan, the
Carribbean, West Africa, etc. Who says there
is no propagation?
My first surprise was in the WSJT
configuration, I set the mode to Pkt/Data
and it did not work. I had to set it to
None. Then set the radio to USB, not Data,
and change the MIC SEL to LINE IN. It seems
a nuisance to have to go into the menu and
change the MIC SEL each time you want to
move from voice to FT8. Most radios I set
up, I chose the Pkt/Data and when I select a
band in the band map, it automatically sets
the radio to DATA and audio flows properly.
That does not seem to be the case for the
Did I miss something in the configuration?
Surely one does not have to go into the menu
and make changes every time he wants to go
from SSB to FT8?
Any insights appreciated.