Envelope-to: dave@picks.force9.co.uk
Delivery-date: Sat, 07 May 2005 14:39:33 +0100
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Date: Sat, 07 May 2005 15:38:59 +0200
From: Wolf DL4YHF <dl4yhf@freenet.de>
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To: RSGB LF Group <rsgb_lf_group@blacksheep.org>
Subject: LF: Suggestion: Two-way test in WOLF BPSK
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Hello John, Brian, and the group,

If conditions remain promising, why not try a 2-way TA contact in WOLF 
BPSK between DRP, XES and possibly others too (excluding myself, due to 
"local time restrictions") ?

To make things easier, use the new "QSO mode" in the latest WOLF GUI 
version. Set the "Period" to 30 minute intervals. You may even configure 
the WOLF GUI to let it answers a CQ-call automagically (using the "RX / 
TX Messages" tab to tell the PC what you are hoping to receive, and to 
define what to send after successfull reception ). More info about that 
new function is in the WOLF GUI manual now.

For a 2-way TA attempt, let me suggest the same principle as used on VHF 
EME and HSCW meteor scatter :

  >  The western-most station calls the FIRST transmitted period .

Here: Western (US) station transmits from XX:00:00 to XX:29:59, eastern 
(EU) station sends XX:30:00 to XX:59:59. 

Note: As long as the TX-message field is empty, WOLF will receive in 
both periods. So you may let WOLF run overnight, and if it decodes a 
CQ-call (or other predefined message text), it may start to transmit in 
"your" next TX-period.

In the recent version it doesn't hurt if your local clock is not 
accurate, since losing a couple of seconds in each period won't hurt. 
For perfect sync, you may use Dimension 4 to synchronize the clock via 
internet (thanks for the point Peter).

You can control your RX/TX switch from the PC, using the RTS-pin of the 
serial port (RTS=Request To Send, sic..).


I will be monitoring the band later, but there is heavy QRN at the 
moment - so I would be glad to copy anything at all.

Have a nice weekend,
  73 ,  Wolf DL4YHF .