Re: [Elecraft] Subject: Re: KXBC3 clock drift

2016-08-28 Thread Joe Stone (KF5WBO)
>> Re: "...Tweak the rate a bit each time the clock is set." > > Back in early 2013, there was some discussion on the > Yahoo Group about doing something like that either > through the Utility, or even a menu entry with "factor" > that could be adjusted by the user. It never went a > anywhere

Re: [Elecraft] Subject: Re: KXBC3 clock drift

2016-08-28 Thread Mark via Elecraft
Re:  "...Tweak the rate a bit each time the clock is set." Back in early 2013, there was some discussion on the Yahoo Group about doing something like that either through the Utility, or even a menu entry with "factor" that could be adjusted by the user.  It never went a anywhere because most

Re: [Elecraft] Subject: Re: KXBC3 clock drift

2016-08-28 Thread Walter Underwood
Sometime around 1990, Unix added the adjtime(2) system call. This allowed changing the frequency of the system clock, typically by adjusting how many wall-time ticks were added per hardware clock tick. If the clock was stable but off frequency, progressive adjustments (compared to a reference

Re: [Elecraft] Subject: Re: KXBC3 clock drift

2016-08-28 Thread Jim Brown
I don't know either, but need accurate time on my computer to use the various WSJT modes. For about four years, I've used a freeware Windoze utility called NetTime. www.timesynctool.com There are several other such programs in common use. 73, Jim K9YC On Sun,8/28/2016 4:02 PM, Bill Frantz

Re: [Elecraft] Subject: Re: KXBC3 clock drift

2016-08-28 Thread Bill Frantz
There is a difference of about 15 seconds between GPS time and UTC time. GPS time does not include the recent leap seconds. The GPS message includes the current difference between GPS time and UTC. I don't know which time the JT modes use, probably UTC. See:

Re: [Elecraft] Subject: Re: KXBC3 clock drift

2016-08-28 Thread Lewis Phelps
I concur, and suggest another path for those who have a strong need for 0.01 second accuracy of their rig’s clock. There are Arduino GPS shields available for $40 and less. If one were so inclined, it would seem feasible to use an Arduino with GPS shield connected to the serial port of the

[Elecraft] Subject: Re: KXBC3 clock drift

2016-08-28 Thread Edward R Cole
I think this topic is a little over the edge. Do ALL radios have clocks, even?? My 1950's HQ100C had a clock which was option C in the model number. It was an electric clock. Do I wish the K3 clock kept better time? Yes, but its not something I'm going to bother Elecraft about. Accurate