I don't find those value to work correctly.   The communication between the computer and radio is USB.     If it were RS-232, maybe so.

Also be sure the Poll Interval on the F2 Setup menu,   Radio tab is set to a value of 1 second.


Via the CONFIG menu, PTT - KEY is set to OFF - OFF, the RS-232 set to USB.

73

Bob, K4TAX



On 2/23/2018 8:25 AM, John Stengrevics wrote:
Try this.

On Feb 23, 2018, at 9:16 AM, Bob McGraw K4TAX <rmcg...@blomand.net <mailto:rmcg...@blomand.net>> wrote:

No issues of that type here.   These are my setup numbers:

Baud Rate = Eight
38400
Stop Bits = one two

Handshake = None

PTT method = CAT RTS

Mode = Data/Pkt

Split = Rig Fake It

Also under the Advanced tab:  Miscellaneous

TX Delay = 0.1 sec.

 I'm not running any other applications such as JT Alert, N1NM, etc.  The computer is connected direct to the K3S with no router, or splitter, or hub  and such in the path.

***  Be sure the VOX mode on the radio is OFF.  {Very important}


73

Bob, K4TAX




On 2/22/2018 10:08 PM, Richard wrote:

Begin forwarded message:

From: Richard <flat...@comcast.net <mailto:flat...@comcast.net>>
Subject: Re: [Elecraft] K3 And WSJT-X FT8 Timing
Date: February 22, 2018 at 11:06:58 PM EST
To: James Bennett <w6...@me.com <mailto:w6...@me.com>>

I’m fighting the same problem and MORE. It usually goes like this:

First FT8 (or JT65) activity of the day, the K3S seems to start on time but sometimes shut off quite late. Any band, any power; I don’t use the amplifier, so 100 watts is the limit.

As time  goes along, the transmission initiation BY THE K3S gets later and later, and the shut off time does, too. By late I mean 2 to sometimes 5 seconds!

Eventually, it starts late, then DOESN’T shut off at all.

Finally, it doesn’t start at all.

I’ve tried just about every imaginable combination of setting on the Radio panel and in the Config menu, all with no improvement.

In the year or more of enjoying JT65 and then FT8 with my Icom IC-7410, I had NONE of these problems, using the same computer and same software. It was bang on and trouble free from Day One.

You kinda hafta suspect the K3S is the culprit in this, but I’m open to anything. If I can’t solve this soon, there will be a virtually brand new K3S for sale.

Richard - W4KBX

Guys - sorry for the delay in responding to your posts - places to go, things to do, all overriding ham radio for a couple hours.

It was suggested that I see if I’m out of sync on my computer clock(s). Well, here is the strange thing: the iMac that the K3 is connected to consistently is giving me a DT response of 0.1 to 0.2 on 90% of the decoded stations, so I’m thinking that the default time server the iMac / OSX is connected to is pretty accurate. But it is this rig that starts it’s transmission a bit late.

The RPi 3 that the KX3 is connected to consistently is giving me DT figures around -0.8 to -0.9. which makes me think my time sync is a little off. But the KX3 connected to this RPi starts right up when it is supposed to. Interestingly, that RPi 3 is connected via short Ethernet to another RPi 3 that runs it’s own GPS-sync’d NTP server. Go figure.

I’m stumped.



On Feb 22, 2018, at 5:28 PM, Nr4c <n...@widomaker.com <mailto:n...@widomaker.com>> wrote:

Check the clocks on the computers. Sync them to a time server.

Sent from my iPhone
...nr4c. bill


On Feb 22, 2018, at 6:30 PM, James Bennett <w6...@me.com <mailto:w6...@me.com>> wrote:

Hi Dennis - how you doing?

Sorry I neglected to provide enough info - was in a hurry to post that before I had to run out to pickup kids at school (close to your dads QTH!)

I am using VOX on both rigs. Each rig has it’s own computer and separate, but identical external USB sound cards. The K3 is connected to an iMac and the KX3 is connected to a Raspberry Pi 3.

Jim / W6JHB



On Feb 22, 2018, at 2:31 PM, Dennis Moore <den...@mail4life.net <mailto:den...@mail4life.net>> wrote:

How are you keying the K3, VOX or PTT?

It's not clear from the email, are the K3 and KX3  on separate computers on just different sound cards in the same computer?

73, Dennis NJ6G


On 2/22/2018 14:22, James Bennett wrote:
Got a question about using my K3 with WSJT-X 1.8.0 with FT8

I started looking at the “time bar” in WSJT-X and when the K3’s red TX light comes on with the meter showing RF going out. It is between 1.5 and 2 seconds after the beginning of the new 15 second sequence! In that short duration, I am hearing other stations’ signals coming through on my headphones, so I know that other folks are getting their rig to transmit right at the start of the 15 second sequence. If mine is coming on 1.5 - 2 seconds late, I’m thinking I may not always get decoded on the other end.

So, I switched over to my KX3 running the same version of WSJT-X and observed what happened there. No delay - when the new 15 second sequence starts, the KX3 goes into transmit almost immediately.

Both the KX3 and the K3 are connected to two identical Tascam USB125M external sound cards.

Is there some setting on the K3 that is causing my transmissions to fire off a tad late?

Jim / W6JHB
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