[Elecraft] Clock Sync and JT65A

[iain macdonnell - N6ML]

On Wed, Jun 1, 2011 at 5:19 PM, Jim Brown <jim at audiosystemsgroup.com> wrote:
> On 6/1/2011 8:43 AM, Mike Markowski wrote:
>> Don't forget NTP (Network Time Protocol), the widely used standard described in
>> an RFC.  It has been ported to Windows and is free.
>
> For many years, I've used a clock setting program distributed by NIST
> called nisttime. It can use NTP. Google to find it.  Free download from
> nist.gov  It can be set to do a re-sync as often as you like.  I don't
> know how good it is at compensating for network delays, but it thinks
> its setting the clock to an accuracy of tens of msec.  To get that level
> of accuracy you need to use it 2-3 times in succession.
>
> All this talk about WSPR and JT65 motivated me to download, install, and
> study the doc for both Joe Taylor's software and W6CQZ's HF version.
> Made my first contacts last night on 10139 kHz with VK and ZL running
> about 25W to the K3 and an 80M dipole.  A JT65 contact is sorta like
> watching paint dry, but I couldn't even hear the ZL that I worked, and
> there was a lot of other activity within the passband that the software
> worked around.  I'm convinced that the W6CQZ version is the way to go
> for HF work.
>
> Next step is to figure out how to use JT65A during 6M openings.  Is
> there a calling frequency where everyone sets up shop on 6M in North
> America?   Which modulation scheme(s) are most used for E-skip?

Some have been hanging out on 50276 JT65A during Es openings. I
haven't made a contact there yet, but I only got setup for 6m remote
operation a few days ago, and there hasn't really been an opening here
(left-coast) since.

Keep an eye on http://hamspots.net/wsjt/

73,

    ~iain / N6ML