Re: [Elecraft] Mac Clock Question

I just run my Internet connected Mac with the defaults and I have no problems with timing on FT8. I use the "Apple Americas/U.S. (time.apple.com)" NTP server which works fine. I don't go through any of the unlock reenter stuff. I just use it as Apple delivered it. If I go to Europe or Asia

Re: [Elecraft] Mac Clock Question

My 2012 Mac mini running 10.13.3 keeps within a few tens of milliseconds every time I check. It uses Apple's own time servers, in my case time.euro.apple.com Works for me, 73 Stephen G4SJP On 20 February 2018 at 18:42, Walter Underwood wrote: > With a terminal

Re: [Elecraft] Mac Clock Question

I run my iMac 24x7, and do have it configured to use the ntp.org pool servers, and it appearsto do the trick for the various WSJT-X modes that I use on HF. However, even when I doreboot occasionally, any transient loss of sync to the NTP servers doesn't seriously affectme when I use WSJT-X.

Re: [Elecraft] Mac Clock Question

With a terminal window open, run “ntpq -p” to get a list of current NTP peers and the offset in milliseconds. $ ntpq -p remote refid st t when poll reach delay offset jitter == +10.74.16.53

Re: [Elecraft] Mac Clock Question

Unfortunately, with some recently releases of OSX, Apple decided to tweak the NTP daemon to "save battery power." This results in the clock drifting significantly from our perspective, but "not enough for the average user to care about." It can definitely be enough for JT modes to care about. I

Re: [Elecraft] Mac Clock Question

> On Feb 20, 2018, at 12:06 , Walter Underwood wrote: > > Should not need to unlock and relock daily. In fact, that could hurt time > synchronization. Indeed, restarting runs the risk of loosing (over-writing) the calibration (local clock drift rate) that NTP uses to

Re: [Elecraft] Mac Clock Question

> On Feb 20, 2018, at 11:49 AM, Richard wrote: > > Before I get into the list of problems I’m having using WSJT-X FT8 on my K3S, > I’d like to know: > > 1. Is the automatic clock setting in my Mac mini (running Sierra, 10.12) good > enough for modes like JT65 and FT8?

Re: [Elecraft] Mac Clock Question

Should not need to unlock and relock daily. In fact, that could hurt time synchronization. Mac OS runs NTP, which continually adjusts the time. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Feb 20, 2018, at 8:55 AM, John Stengrevics

Re: [Elecraft] Mac Clock Question

My general thought on computer time accuracy..start decoding stations.   Watch the DT value of those decoded.  I find if the majority are less than <0.5 +/- then your computer clock is good.   If most stations decodes  are greater than >0.5 +/-, then I'd look for a better time reference. 

Re: [Elecraft] Mac Clock Question

Richard, I run a Mac here. Go to System Preferences, Unlock, enter “us.pool.ntp.org ”, Lock and you will be good to go. You should Unlock, delete, and renter the above daily to make sure you are synched - takes 30 seconds. John WA1EAZ > On Feb 20, 2018, at 11:49

[Elecraft] Mac Clock Question

Before I get into the list of problems I’m having using WSJT-X FT8 on my K3S, I’d like to know: 1. Is the automatic clock setting in my Mac mini (running Sierra, 10.12) good enough for modes like JT65 and FT8? 2. If not, what’s a good reliable time sync app I can download and use? Cheers!