Re: K3s and WSJT-X

Rick NK7I

I do not, but suggest 'Fake it' is better in some cases.  Testing should be done, 'Fake it' is simpler.

I use the HRD interface (set the radio to HRD in WSJT-X), which forwards commands to the radio (via IP, internally to the same computer).  I found that (regardless of serial connection speed to the radio), some commands were not received by the radio.  This resulted in poor frequency control as an example of VFO B.  I find no fault with HRD or WSJT-X by themselves, but together it's not always 'right' (it's software, I get it).

The series of commands sent in 'Rig' includes: band, split, set frequency, <send>, reset frequency, unsplit; far more complicated than it should be.  There just isn't enough time since it passes through an IP stream as well, some commands are lost or ignored.

'Fake it' is more reliable and quicker; change frequency, <send>, replace frequency; done.  I've had fewer issues this way.

Now if it would stop resetting the frequency when changing in/out of fox/hound I'd be a much happier camper.  (Oh, DX, change to fox, RESET the frequency back manually, ARGH, lol).  That and whining because I left it in split after working DX in another mode...  (just UNDO the split and be happy program!)

Rick NK7I

On 4/11/2021 6:38 AM, Bob McGraw - K4TAX wrote:
I find exactly the same thing to be true.    I strongly advise all to set the SPLIT mode to RIG.


Bob, K4TAX

On 4/11/2021 8:07 AM, Dave Cole wrote:
Hi Rick,

With regards to split, why FAKE IT, as opposed to RIG?

I am running RIG, (both VFOs), and see the K3 move the xmit frequency around as needed to keep my audio above 1500 Hz.  Works in F/H, and normal mode fine.

73, and thanks,
Dave (NK7Z)
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 4/10/21 9:29 PM, Rick NK7I wrote:

If you have 'Fake It' on (and you SHOULD); if the tones selected are not between 1500-2000 Hz, the radio will shift the VFO frequency so that the third harmonic of the audio will not be transmitted.  The third harmonic of that tone range will fall outside the transmit filtering.

What you are seeing is normal.  The direction of the shift depends on the tone selected.

Good luck with C92RU, it took over 4 hours of calling at legal limit tonight, to FINALLY get through.  4th time was the charm (I had 3 near misses).  (band slot #6, from North Idaho).

Rick NK7I

On 4/10/2021 8:50 PM, Jim Denneny wrote:
Strange behavior.  FT8 on 80M 3547 rx and 1000hz tx.  When I key radio the K3s shifts from 3547 to 3546 down 1Khz.  I expected TX to remain on 3547  with tx Up 1000 Hz.  First time on 80 FT8

Jim K7EG

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