From: k2ors@comcast.net
To: rsgb_lf_group@blacksheep.org, "rsgb" <rsgb_lf_group@blacksheep.org>
Date: Fri, 26 Oct 2007 18:28:27 +0000
Message-Id: <102620071828.6270.472231CB000AEBDD0000187E22007374780B97010D0A020E06979D0E03@comcast.net>
Subject: LF: FW: Re: JT-2 on 500kHz
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Andy and the list,
  Rec'd the following from Joe Taylor:

-------------- Forwarded Message: --------------
From: Joe Taylor <joe@Princeton.EDU>
To: k2ors@comcast.net
Subject: Re: JT-2 on 500kHz
Date: Fri, 26 Oct 2007 18:15:48 +0000
> Hi Warren,
> 
> The WSJT6 User's Guide and Reference Manual should tell you what you 
> need to know about general operation of the program.  You can download 
> it from the WSJT Home Page, http://physics.princeton.edu/pulsar/K1JT/ . 
> A direct link to the manual is
> http://physics.princeton.edu/pulsar/K1JT/WSJT_User_600.pdf .
> 
> The manual does not explicitly cover the new experimental modes JT2 and 
> JT4.  Their operation is very similar to the JT65 modes, however.
> 
> WSJT always operates with timed T/R sequences.  For JT65, JT2, and JT4 
> these are one minute each way.  Transmissions actually last for about 47 
> seconds; the remaining portion of your "Tx minute" is used for the other 
> station to decode your message so that he may reply suitably.  Tx and Rx 
> computer clocks mist be synchronized to within +/- one or two seconds. 
> A Tx/Rx sequence is started by toggling the Auto button to On.  You can 
> select whether you will "Tx First" (i.e., in the even-numbered minutes" 
> or not.
> 
> The program does not have a beacon mode, but it will transmit the same 
> message in alternate minutes as long as you wish.
> 
> If you let me know when you will transmit on 500 kHz (or, for that 
> matter, on one of the lower bands), I would be interested in listening.
> 
>   -- 73, Joe, K1JT
> 
> 
> k2ors@comcast.net wrote:
> > Hi Joe,
> > 
> >    I've seen your software mentioned on the RSGB and LWCA e-mail reflectors. I 
> downloaded WSJT 5.9.8 r558 and attempted to send JT-2 messages on 500kHz (I have 
> an experimental license that lets me do this), but was not successful and having 
> anyone decode it.
> > 
> > Basic Questions:
> > 
> > 1) How accurate does the PC clock need to be?
> > 2) I am assuming that the way you transmit is by filling in the text boxes in 
> the 
> > lower right of the screen next to Tx1 - Tx6 - and then press the corresponding 
> > button tx1...tx6 ?
> > 3) Is there a way to set up a repeating beacon message?
> > 
> > 
> > Thanks for your help with this!
> > 
> > 
> > --
> > 73 Warren K2ORS
> > WD2XGJ     136-140kHz
> > WD2XSH/23 505-510kHz
> > WE2XEB/2   160-189kHz
> > WE2XGR/1 505-515kHz
> > 
> > FN42hi
> > http://www.w4dex.com/wd2xgj.htm