> Begin forwarded message:
> 
> From: Richard <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>
> 
> 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> 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> 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> 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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>>>> ______________________________________________________________
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>>> 
>> 
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