Elecraft K3

How to: Use one serial port for CAT, CW and PTT

Set your K3 CONFIG:PTT-KEY to “rts-dtr” so it will accept CW and PTT on the RS-232 input.
Then configure the N1MM Logger “Radio” port for DTR=CW and RTS=PTT and set the PTT to CW delay (PTT Delay) to 20 mSec.

How to: Set up the K3 for RTTY

To allow the K3 to select Mode=DATA submode=AFSK when you select RTTY. set up N1MM Logger “Configurer” …select the “Mode Control” tab and set “RTTY to” AFSK for both radios/VFOs.

 

Info below from ZM4G

“Instant CW split”

A handy way of instantly dropping the K3 straight into split mode in a pileup is to use the K3’s fancy new switch macro facility.  It avoids the need to press a whole set of buttons in the correct sequence when the DX is calling “up 1” (or whatever) and the adrenalin is flowing fast.  Here’s the instant CW split macro I am currently using, with an explanation of each of the macro commands below:

SWT13;SWT13;UPB4;FT1;DV0;SB1;RT0;XT0;LK1;BW0060;BW$0270;MN111;MP001;MN255;
1         2        3       4      5      6     7     8    9        10            11        ———–12———-

  1. A>B [first time] copies the frequency from VFO A to VFO B, assuming I have found the DX on VFO A and have nothing in particular on VFO B
  2. A>B [again] copies the mode (and other parameters?) from A to B
  3. Moves VFO B up by 1 kHz (4 is one of the set values – see the programmers’ guide for other possible split values) – note: +1 is just a common starting value!
  4. Turns split on – this is the very step I sometimes forget when doing this lot manually!!
  5. Turns diversity mode off
  6. Turns SubRX on to listen on my split TX frequency in the pileup on VFO B, while still listening to the DX on A (useful to find the exact calling spot)
  7. Turns RIT off in case it was set
  8. Turns XIT off in case it was set
  9. Locks VFO A so I can still move VFO B to find the best TX spot in the pileup to call but if I knock VFO A by mistake, I won’t lose the DX frequency
  10. Tightens the filter on VFO A to 600Hz to cut down QRM on the DX frequency
  11. Opens the filter on VFO B to 2.7kHz to listen for successful callers in the pileup
  12. Mixes audio from VFO A (the DX) in both ears with VFO B (my TX frequency in the pileup) in my right ear only [MN111 is the code for the audio mix function; MP001 is a parameter; MN255 ends the code]

I have configured this sequence on the M3-hold macro key, in other words if I find some juicy CW DX operating split, I just press and hold the M3 key to run the macro and set me up in split, transmitting one up, listening on both the DX and my TX frequencies with the filters all set.  Fantastic feature!

I’m tempted also to turn the subRX preamp off and maybe turn its attenuator on to reduce the subRX audio and QRM from the pileup, using PA0$;RA1$; but meanwhile I simply use the AF/SUB knob to reduce the volume of VFO B relative to A.

Please note: these macros are still evolving as I try new things!

“Instant CW pileup”

I have programmed another macro key to do the converse of the “instant split”, enabling me to instantly start listening ‘up 1’ when I get a CW pileup going and need to split.  In this case, I use the main VFO A to tune around the pileup, transmitting on a locked VFO B.  The commands for that are:

SWT13;SWT13;UP4;FT1;DV0;SB1;RT0;XT0;LK$1;BW0270;BW$0060;MN111;MP002;MN255;
1          2        3      4     5     6     7     8      9         10            11        ———–12———-

  1. A>B [first time] copies the frequency from VFO A to VFO B
  2. A>B [again] copies the mode (and other parameters?) from A to B
  3. Moves VFO A up by 1 kHz (4 is one of the set values – see the programmers’ guide for other possible split values) – note: +1 is just a common starting value!  I normally tune from there.
  4. Turns split on
  5. Turns diversity mode off
  6. Turns SubRX on to keep an ear on my TX frequency, while also listening to the pileup
  7. Turns RIT off
  8. Turns XIT off
  9. Locks VFO B, allowing me to tune through the pileup on VFO A without the risk of accidentally knocking my TX frequency on VFO B
  10. Opens the filter on VFO A to 2.7kHz to catch callers who are not right on my announced split freq (I can always narrow the bandwidth on A using the width control if the pileup gets too big, but mostly I prefer to pick out individual callers ‘by ear’)
  11. Narrows the filter on VFO B to 600Hz to avoid hearing split callers too close to my TX freq, while still listening for those who fail to split or cops who QRM my TX freq
  12. Mixes audio from VFO A (the pileup) in both ears and from VFO B (my TX freq) on the right ear only

“Unsplit”

Having used either of the above split macros, I wanted a further macro to reset the K3 quickly to my normal operating setup:

FT0; LK0; LK$0; SWT13; BW0270; DV1;
1      2       3         4             5         6

  1. Turn off split
  2. Unlock VFO A
  3. Unlock VFO B
  4. Copy the VFO A frequency to VFO B
  5. Set VFO A to 2.7kHz bandwidth
  6. Turn on diversity mode which sets VFO B to the same filter settings as A and automatically puts VFO A audio in my left ear using the main antenna and the subRX on my right ear using the receive antenna