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6851RE: [wsjtgroup] Working WSJT on HF

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  • Russ K2TXB
    Jan 27, 2010
      Well Barry, if that is really the convention then the convention is wrong.  Presume that you called CQ and received two answers.  You are trying to work one of them.  When you receive a message like "RRR: with your suffix, you cannot tell who sent it.  But if he uses his suffix then it is clear.  And if you receive the RRR with a suffix that doesn't match the guy you are working then you know not to respond to it.
      Years ago we spent a lot of time discussing this and the above is what was agreed to at the time.  Over the years I suppose it could have gotten perverted.
      73, Russ K2TXB

      From: wsjtgroup@yahoogroups.com [mailto:wsjtgroup@yahoogroups.com] On Behalf Of Barry Garratt
      Sent: Wednesday, January 27, 2010 3:38 PM
      To: 'Russ K2TXB'; 'K. D. Sarchet'; wsjtgroup@yahoogroups.com
      Subject: RE: [wsjtgroup] Working WSJT on HF


      Russ makes very valid points with one exception. When other stations are on the same frequency the convention is to append the suffix as Russ says EXCEPT you use the suffix of the station you are working, not your own suffix. For example if I was working Russ and received his TX2 I would answer TXB R-26 and when he received that he would answer DX RRR or even 7DX RRR so I would know the RRR is for me.
      Barry KS7DX

      From: wsjtgroup@yahoogrou ps.com [mailto:wsjtgroup@ yahoogroups. com] On Behalf Of Russ K2TXB
      Sent: Wednesday, January 27, 2010 12:25 PM
      To: 'K. D. Sarchet'; wsjtgroup@yahoogrou ps.com
      Subject: RE: [wsjtgroup] Working WSJT on HF


      FSK441 & JT65: I've been using them since inception.  There is nothing wrong with using shorthand messages (also called ST or single tone messages), except under conditions where there are likely to be other stations on your frequency.  In that case, it becomes more difficult to tell if the ST message you are receiving was meant for you.  However the same thing applies if you simply send RRR or 73, without a callsign tag.  So simply avoiding SH messages will not help much.
      TAGS: If your CALL is W1XYZ, you might send "RRR XYZ", or "R26 XYZ" so the receiving station knows the reports are from you.  Again, this is necessary only when there is a likelihood of QRM from other stations running on the same frequency.  That mostly happens when there is an expedition, or when there is a contest, or when you are running on a calling frequency (bad practice).
      OFFSET FREQUENCIES:  When calling CQ on a calling frequency use "CQ D5 W1XYZ", or "CQ U2 W1XYZ" to let receiving stations know you will be listening and replying on another frequency.  This keeps the calling frequency clear for other CQ's and almost completely eliminates the chance for mistaken reports due to QRM since you will most likely choose a clear frequency to respond on.  So you continue calling CQ on the calling frequency, but listening on your offset frequency until you hear a reply.  Then you switch your transmitter to the offset frequency to actually work the caller.  If you have a second receiver, and computer, you can also listen on the calling frequency to see if you can copy any other CQ's during your receive period, or check for responders that did not get the message!
      73, Russ K2TXB

      From: wsjtgroup@yahoogrou ps.com [mailto:wsjtgroup@ yahoogroups. com] On Behalf Of K. D. Sarchet
      Sent: Wednesday, January 27, 2010 2:44 PM
      To: wsjtgroup@yahoogrou ps.com
      Subject: RE: [wsjtgroup] Working WSJT on HF


      Thanks Chris, very timely for all of the newbies I’ve seen of late.

      Just to reiterate a point and simplify the order of messages to send…

      If you called CQ, then use the even numbered messages. i.e. TX6 – TX2 – TX4

      If you are answering a CQ, use the odd numbered messages in order. i.e. TX1 – TX3 – TX5

      Also, do NOT send a message unless you have received the previous numbered message. i.e. don’t send TX3 unless you have received TX2.

      I have some very important items to add to what Chris mentioned:

      Use the Auto button.  Don’t transmit manually.

      Chris mention setting TxDF the same as the station you are working.  To do this, click on the signal and activate the TxDF= button. (it will turn red)

      Try not to call CQ on TxDF=0.  This isn’t a hard and fast rule to follow, but it helps everyone.  Every new guy on the block doesn’t know how to set their TxDF for a while.  So what happens is that the new JT65A operators send CQ, and it is not uncommon to see many signals within 20Hz of each other centered right around TxDF=0.

      In working FSK441, I was once told not to use shorthand messages.  For that reason, I do not, and at this moment refuse to use shorthand.  I encourage others to follow suit.

      And now for my pet peeve!  The first 2 letters of WSJT (WS) stand for ‘Weak Signal’.  You do NOT need to use 200 Watts and a 5 element yagi to work the world.  I was introduced to terrestrial JT65 during the recent solar cycle low.  In the first week that I was on the mode, I worked all continents using 5 watts and a quarter wave vertical without radials.  Please examine your signal reports, and if you find you are getting signal reports of -10 or better for DX stations, lower your power!  WSJT easily decodes signals to about -25.  The rule of thumb is that if you cut your power in half, that is a 3 dB loss(-3 dB).  Since I figured this out, I rarely use more than 20 Watts, and still work the world on a daily basis.

      Hope to work you soon on JT65A

      73 de WY5R – KD

      From: wsjtgroup@yahoogrou ps.com [mailto:wsjtgroup@ yahoogroups. com] On Behalf Of Chris_M
      Sent: Tuesday, January 26, 2010 8:34 PM
      To: wsjtgroup@yahoogrou ps.com
      Subject: [wsjtgroup] Working WSJT on HF


      I thought that this might help the new comers on WSJT HF with JT65A

      It's great to see some new calls coming up on JT65A But When you operate JT65A on HF it's a little bit different than working JT65B and EME etc
      One thing you have to remember is that Gen Std Messages are not used Simply Double Right Click on a Call and it will setup the Responses needed to make the contact on the right hand side of WSJT

      Here is an Example. You see my Call N9JCA in the Decode Window
      calling CQ When you Double Right Click on my call this will happen
      It will Automatically start with TX1 Make sure you are the opposite of the other Operator; If he is TXing on Even Minute then you need to be on the ODD Minute and Visa Versa If you want to TX on the EVEN Minute then make sure the TX-First is Checked

      N9JCA WXXXX EM67 TX1
      N9JCA WXXXX -13 TX2 This what the other Operator is looking for in regards to a Signal Report
      N9JCA WXXXX R-13 TX3
      N9JCA WXXXX 73 TX5
      WXXXX CQ EM67 TX6

      You then go down the line using TX1 TX2 TX4 If the other station started the QSO
      If you started the QSO with a CQ then you will use
      TX6 TX2 (if the other Party hasn't sent a report) or TX3 ( if the other party has sent a report R being you got his report and -13 is his Signal Strength) TX4 TX5
      In TX5 you can change this as long as it is NO longer than 13 Spaces I.E TU CHRIS 10W

      Make sure your TXDF is the same as the other Operator

      May I also suggest that you go to the Logger Page and make an account for JT65A 2 things will happen
      1) You will be able to chat with other Operators
      2) You will be able to see who is hearing your Signal --- this Portion will be discontinued after February 10th

      Feel free to contact me off page or via the Group

      N9JCA Chris

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