From 0a16a1e6145178f346ffb018e96ded05c41c535b Mon Sep 17 00:00:00 2001
From: Joe Taylor <k1jt@arrl.org>
Date: Thu, 24 Aug 2017 13:38:47 +0000
Subject: [PATCH] Possible pseudo-code for DXpedition auto-sequencing.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8034 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
---
 lib/DXped_pseudo_code.txt | 71 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 lib/DXped_pseudo_code.txt

diff --git a/lib/DXped_pseudo_code.txt b/lib/DXped_pseudo_code.txt
new file mode 100644
index 000000000..a0469a1f4
--- /dev/null
+++ b/lib/DXped_pseudo_code.txt
@@ -0,0 +1,71 @@
+Auto-Sequencing algorithm for DXpedition station:
+
+Start:
+    CQMsg = "CQ VK9MA"   (or "CQ UP VK9MA", "CQ 116 VK9MA", etc.)
+    TxMsg = CQMsg
+    Ntry = 0
+    QCALL = ""                                        # Callsign of current QSO partner
+    go to Transmit
+
+Transmit:
+    TX                                                # (... takes 13.6 s)
+    go to Receive
+
+Receive:
+    RX                                                # (... takes ~14 s)
+    N = number of decodes                             # RxMsg[i], i=1,N
+    if(N == 0)
+        go to Transmit
+    J = index of a reply from current QCALL           # RxMsg[J] = "VK9MA QCALL R<rpt>"
+
+    if(QCALL == "")                                   # No QSO in progress
+        Select new QCALL                              # Op chooses a caller
+	if(QCALL == "")
+	    TxMsg = CQMsg                             # No callers, we'll CQ again
+    else                                              # QSO in progress
+        if(J >= 1)                                    # Expected message was received
+            log the QSO with QCALL
+	    QCALL = ""
+	    Select new QCALL                          # Op chooses a new caller
+	    if(QCALL != "")
+	        TxMsg = "73 NOW QCALL <rpt>"          # Start a new QSO
+	    else
+                TxMsg = "73 " + CQMsg                 # No callers, we'll CQ again
+        else
+            Ntry = Ntry + 1                           # Expected msg not received
+	    if(Ntry <= NtryMax)
+	        go to Transmit                        # Ask for a repeat
+	    else
+		QCALL = ""                            # Max tries exceeded, abort this QSO
+	        Select new QCALL                      # Choose a new caller
+	        if(QCALL != "")
+	            TxMsg = "NIL NOW QCALL <rpt>"     # Start a new QSO
+	        else
+                    TxMsg = "NIL " + CQMSG            # No callers, we'll CQ again
+    go to Transmit
+
+
+Auto-Sequencing algorithm for those calling the DXpedition:
+
+Start:
+    TxMsg = "VK9MA MyCall"
+    InQSO = false
+
+Transmit:
+    TX                                                # (... takes 13.6 s)
+    go to Receive
+
+Receive:
+    RX                                                # (... takes ~14 s)
+    if(RxMsg[i] contains "MyCall <rpt>")
+        InQSO = true
+        TxMsg = "VK9MA MyCall R<rpt>"
+	go to Transmit
+
+    if(RxMsg[i] contains "<rpt>")
+        TxEnable = false
+	go to Receive
+
+    if(RxMsg[i] contains "CQ VK9MA")
+        TxEnable = true
+	go to Transmit