From ee830ea321fb7a640b49bd3858d3c5917fca2b3b Mon Sep 17 00:00:00 2001
From: robertl <robertl@f51c46e8-681c-474f-0cfe-069cfd0219fb>
Date: Sat, 15 Jul 2006 02:04:32 +0000
Subject: [PATCH] From Andy: fix southern hemi for wbt, set baud rate in
 Brauniger, route excess precision from computed speed.

git-svn-id: http://gpsbabel.googlecode.com/svn/trunk@2236 f51c46e8-681c-474f-0cfe-069cfd0219fb
---
 gpsbabel/brauniger_iq.c        |   5 +-
 gpsbabel/reference/wbt-200.gpx | 494 ++++++++++++++++-----------------
 gpsbabel/wbt-200.c             |  21 +-
 3 files changed, 266 insertions(+), 254 deletions(-)

diff --git a/gpsbabel/brauniger_iq.c b/gpsbabel/brauniger_iq.c
index b42c849da..30905e523 100644
--- a/gpsbabel/brauniger_iq.c
+++ b/gpsbabel/brauniger_iq.c
@@ -51,7 +51,10 @@ static const int reqd_bytes[num_states] = { 6, 1, 2, 2, 25, 2, 2, 2, 2, 2, 2, 1,
 
 static void rd_init(const char *fname) {
 	if (serial_handle = gbser_init(fname), NULL == serial_handle) {
-		fatal(MYNAME ": Can't initialise port '%s'\n", fname);
+		fatal(MYNAME ": Can't open port '%s'\n", fname);
+	}
+	if (gbser_set_port(serial_handle, 9600, 8, 0, 1) != gbser_OK) {
+		fatal(MYNAME ": Can't configure port '%s'\n", fname);
 	}
 }
 
diff --git a/gpsbabel/reference/wbt-200.gpx b/gpsbabel/reference/wbt-200.gpx
index af01949c9..c714bcdc2 100644
--- a/gpsbabel/reference/wbt-200.gpx
+++ b/gpsbabel/reference/wbt-200.gpx
@@ -9,120 +9,120 @@ xsi:schemaLocation="http://www.topografix.com/GPX/1/0 http://www.topografix.com/
 <trk>
 <trkseg>
 <trkpt lat="54.786918600" lon="-2.344296200">
-  <speed>0.556136</speed>
+  <speed>0.000000</speed>
   <name>WP0001</name>
 </trkpt>
 <trkpt lat="54.786917800" lon="-2.344315400">
   <course>94.133018</course>
-  <speed>0.247108</speed>
+  <speed>0.000000</speed>
   <name>WP0002</name>
 </trkpt>
 <trkpt lat="54.786918500" lon="-2.344317400">
   <course>58.742805</course>
-  <speed>0.026882</speed>
+  <speed>0.000000</speed>
   <name>WP0003</name>
 </trkpt>
 <trkpt lat="54.786921300" lon="-2.344313000">
-  <speed>0.085008</speed>
+  <speed>0.000000</speed>
   <name>WP0004</name>
 </trkpt>
 <trkpt lat="54.786923900" lon="-2.344310300">
-  <speed>0.065847</speed>
+  <speed>0.000000</speed>
   <name>WP0005</name>
 </trkpt>
 <trkpt lat="54.786926200" lon="-2.344311600">
   <course>18.051563</course>
-  <speed>0.050291</speed>
+  <speed>0.000000</speed>
   <name>WP0006</name>
 </trkpt>
 <trkpt lat="54.786925900" lon="-2.344315900">
   <course>96.898911</course>
-  <speed>0.053764</speed>
+  <speed>0.000000</speed>
   <name>WP0007</name>
 </trkpt>
 <trkpt lat="54.786924000" lon="-2.344320400">
   <course>126.213005</course>
-  <speed>0.071123</speed>
+  <speed>0.000000</speed>
   <name>WP0008</name>
 </trkpt>
 <trkpt lat="54.786922100" lon="-2.344322900">
   <course>142.812088</course>
-  <speed>0.050291</speed>
+  <speed>0.000000</speed>
   <name>WP0009</name>
 </trkpt>
 <trkpt lat="54.786919800" lon="-2.344325500">
   <course>146.902481</course>
-  <speed>0.060110</speed>
+  <speed>0.000000</speed>
   <name>WP0010</name>
 </trkpt>
 <trkpt lat="54.786917100" lon="-2.344328300">
   <course>149.121628</course>
-  <speed>0.068536</speed>
+  <speed>0.000000</speed>
   <name>WP0011</name>
 </trkpt>
 <trkpt lat="54.786913900" lon="-2.344332500">
   <course>142.881119</course>
-  <speed>0.087107</speed>
+  <speed>0.000000</speed>
   <name>WP0012</name>
 </trkpt>
 <trkpt lat="54.786910500" lon="-2.344337100">
   <course>142.041077</course>
-  <speed>0.095042</speed>
+  <speed>0.000000</speed>
   <name>WP0013</name>
 </trkpt>
 <trkpt lat="54.786907000" lon="-2.344341500">
   <course>144.061920</course>
-  <speed>0.095042</speed>
+  <speed>0.000000</speed>
   <name>WP0014</name>
 </trkpt>
 <trkpt lat="54.786904000" lon="-2.344345500">
   <course>142.445999</course>
-  <speed>0.082855</speed>
+  <speed>0.000000</speed>
   <name>WP0015</name>
 </trkpt>
 <trkpt lat="54.786901500" lon="-2.344348100">
   <course>149.049561</course>
-  <speed>0.063043</speed>
+  <speed>0.000000</speed>
   <name>WP0016</name>
 </trkpt>
 <trkpt lat="54.786899100" lon="-2.344349500">
   <course>161.409058</course>
-  <speed>0.057025</speed>
+  <speed>0.000000</speed>
   <name>WP0017</name>
 </trkpt>
 <trkpt lat="54.786896800" lon="-2.344349800">
   <course>175.698807</course>
-  <speed>0.050291</speed>
+  <speed>0.000000</speed>
   <name>WP0018</name>
 </trkpt>
 <trkpt lat="54.786894700" lon="-2.344350500">
   <course>169.120071</course>
-  <speed>0.050291</speed>
+  <speed>0.000000</speed>
   <name>WP0019</name>
 </trkpt>
 <trkpt lat="54.786893000" lon="-2.344352300">
   <course>148.594345</course>
-  <speed>0.046561</speed>
+  <speed>0.000000</speed>
   <name>WP0020</name>
 </trkpt>
 <trkpt lat="54.786891400" lon="-2.344354300">
   <course>144.216919</course>
-  <speed>0.042504</speed>
+  <speed>0.000000</speed>
   <name>WP0021</name>
 </trkpt>
 <trkpt lat="54.786889700" lon="-2.344355900">
   <course>151.511292</course>
-  <speed>0.046561</speed>
+  <speed>0.000000</speed>
   <name>WP0022</name>
 </trkpt>
 <trkpt lat="54.786888400" lon="-2.344356700">
   <course>160.463150</course>
-  <speed>0.026882</speed>
+  <speed>0.000000</speed>
   <name>WP0023</name>
 </trkpt>
 <trkpt lat="54.786887400" lon="-2.344356700">
   <course>180.000000</course>
-  <speed>0.019008</speed>
+  <speed>0.000000</speed>
   <name>WP0024</name>
 </trkpt>
 <trkpt lat="54.786886600" lon="-2.344357000">
@@ -149,496 +149,496 @@ xsi:schemaLocation="http://www.topografix.com/GPX/1/0 http://www.topografix.com/
   <name>WP0029</name>
 </trkpt>
 <trkpt lat="54.786877300" lon="-2.344355400">
-  <speed>0.167877</speed>
+  <speed>0.000000</speed>
   <name>WP0030</name>
 </trkpt>
 <trkpt lat="54.786875900" lon="-2.344370000">
   <course>99.441742</course>
-  <speed>0.190083</speed>
+  <speed>0.000000</speed>
   <name>WP0031</name>
 </trkpt>
 <trkpt lat="54.786883500" lon="-2.344370000">
   <course>0.000000</course>
-  <speed>0.170016</speed>
+  <speed>0.000000</speed>
   <name>WP0032</name>
 </trkpt>
 <trkpt lat="54.786881400" lon="-2.344368600">
-  <speed>0.053764</speed>
+  <speed>0.000000</speed>
   <name>WP0033</name>
 </trkpt>
 <trkpt lat="54.786878700" lon="-2.344367600">
-  <speed>0.063043</speed>
+  <speed>0.000000</speed>
   <name>WP0034</name>
 </trkpt>
 <trkpt lat="54.786876400" lon="-2.344365300">
-  <speed>0.057025</speed>
+  <speed>0.000000</speed>
   <name>WP0035</name>
 </trkpt>
 <trkpt lat="54.786877400" lon="-2.344361000">
-  <speed>0.057025</speed>
+  <speed>0.000000</speed>
   <name>WP0036</name>
 </trkpt>
 <trkpt lat="54.786939600" lon="-2.344332500">
-  <speed>1.432199</speed>
+  <speed>1.275627</speed>
   <name>WP0037</name>
 </trkpt>
 <trkpt lat="54.787010100" lon="-2.344387100">
   <course>24.064192</course>
-  <speed>1.432560</speed>
+  <speed>1.063023</speed>
   <name>WP0038</name>
 </trkpt>
 <trkpt lat="54.787079800" lon="-2.344423000">
   <course>16.541142</course>
-  <speed>1.618836</speed>
+  <speed>1.275627</speed>
   <name>WP0039</name>
 </trkpt>
 <trkpt lat="54.787159200" lon="-2.344461600">
   <course>15.659211</course>
-  <speed>1.835854</speed>
+  <speed>1.275627</speed>
   <name>WP0040</name>
 </trkpt>
 <trkpt lat="54.787268800" lon="-2.344447800">
-  <speed>2.446469</speed>
+  <speed>2.551255</speed>
   <name>WP0041</name>
 </trkpt>
 <trkpt lat="54.787316800" lon="-2.344428600">
-  <speed>1.096733</speed>
+  <speed>1.275627</speed>
   <name>WP0042</name>
 </trkpt>
 <trkpt lat="54.787358600" lon="-2.344494600">
   <course>42.315998</course>
-  <speed>1.258575</speed>
+  <speed>1.275627</speed>
   <name>WP0043</name>
 </trkpt>
 <trkpt lat="54.787398000" lon="-2.344587300">
   <course>53.605648</course>
-  <speed>1.478501</speed>
+  <speed>1.275627</speed>
   <name>WP0044</name>
 </trkpt>
 <trkpt lat="54.787446000" lon="-2.344635900">
   <course>30.277189</course>
-  <speed>1.237587</speed>
+  <speed>1.275627</speed>
   <name>WP0045</name>
 </trkpt>
 <trkpt lat="54.787489200" lon="-2.344701500">
   <course>41.205185</course>
-  <speed>1.278231</speed>
+  <speed>1.275627</speed>
   <name>WP0046</name>
 </trkpt>
 <trkpt lat="54.787536100" lon="-2.344777300">
   <course>42.981739</course>
-  <speed>1.427271</speed>
+  <speed>1.275627</speed>
   <name>WP0047</name>
 </trkpt>
 <trkpt lat="54.787576800" lon="-2.344848600">
   <course>45.288700</course>
-  <speed>1.287806</speed>
+  <speed>1.275627</speed>
   <name>WP0048</name>
 </trkpt>
 <trkpt lat="54.787619000" lon="-2.344905600">
   <course>37.912586</course>
-  <speed>1.190717</speed>
+  <speed>1.275627</speed>
   <name>WP0049</name>
 </trkpt>
 <trkpt lat="54.787654600" lon="-2.344976100">
   <course>48.789742</course>
-  <speed>1.202943</speed>
+  <speed>1.275627</speed>
   <name>WP0050</name>
 </trkpt>
 <trkpt lat="54.787706000" lon="-2.345057400">
   <course>42.365654</course>
-  <speed>1.548800</speed>
+  <speed>1.275627</speed>
   <name>WP0051</name>
 </trkpt>
 <trkpt lat="54.787704600" lon="-2.345093500">
   <course>93.847755</course>
-  <speed>0.464052</speed>
+  <speed>0.000000</speed>
   <name>WP0052</name>
 </trkpt>
 <trkpt lat="54.787650000" lon="-2.345038300">
-  <speed>1.407002</speed>
+  <speed>1.275627</speed>
   <name>WP0053</name>
 </trkpt>
 <trkpt lat="54.787599300" lon="-2.344979500">
-  <speed>1.357865</speed>
+  <speed>1.275627</speed>
   <name>WP0054</name>
 </trkpt>
 <trkpt lat="54.787556600" lon="-2.344911400">
-  <speed>1.291588</speed>
+  <speed>1.275627</speed>
   <name>WP0055</name>
 </trkpt>
 <trkpt lat="54.787516700" lon="-2.344837400">
-  <speed>1.300648</speed>
+  <speed>1.275627</speed>
   <name>WP0056</name>
 </trkpt>
 <trkpt lat="54.787474300" lon="-2.344746700">
-  <speed>1.499009</speed>
+  <speed>1.275627</speed>
   <name>WP0057</name>
 </trkpt>
 <trkpt lat="54.787424700" lon="-2.344667700">
-  <speed>1.499370</speed>
+  <speed>1.275627</speed>
   <name>WP0058</name>
 </trkpt>
 <trkpt lat="54.787376900" lon="-2.344594500">
-  <speed>1.419783</speed>
+  <speed>1.275627</speed>
   <name>WP0059</name>
 </trkpt>
 <trkpt lat="54.787337800" lon="-2.344539200">
-  <speed>1.123262</speed>
+  <speed>1.275627</speed>
   <name>WP0060</name>
 </trkpt>
 <trkpt lat="54.787292000" lon="-2.344480900">
-  <speed>1.264875</speed>
+  <speed>1.275627</speed>
   <name>WP0061</name>
 </trkpt>
 <trkpt lat="54.787233600" lon="-2.344424200">
-  <speed>1.489943</speed>
+  <speed>1.275627</speed>
   <name>WP0062</name>
 </trkpt>
 <trkpt lat="54.787188100" lon="-2.344418700">
-  <speed>1.015479</speed>
+  <speed>1.275627</speed>
   <name>WP0063</name>
 </trkpt>
 <trkpt lat="54.787137900" lon="-2.344400400">
-  <speed>1.142083</speed>
+  <speed>1.275627</speed>
   <name>WP0064</name>
 </trkpt>
 <trkpt lat="54.787093100" lon="-2.344371800">
-  <speed>1.062938</speed>
+  <speed>1.275627</speed>
   <name>WP0065</name>
 </trkpt>
 <trkpt lat="54.787020700" lon="-2.344353100">
-  <speed>1.629736</speed>
+  <speed>1.275627</speed>
   <name>WP0066</name>
 </trkpt>
 <trkpt lat="54.786968300" lon="-2.344298000">
-  <speed>1.364369</speed>
+  <speed>1.275627</speed>
   <name>WP0067</name>
 </trkpt>
 <trkpt lat="54.786953700" lon="-2.344270600">
-  <speed>0.478995</speed>
+  <speed>0.000000</speed>
   <name>WP0068</name>
 </trkpt>
 <trkpt lat="54.786928100" lon="-2.344276200">
   <course>172.810944</course>
-  <speed>0.574354</speed>
+  <speed>0.000000</speed>
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 </trkpt>
 <trkpt lat="54.786947500" lon="-2.344239500">
-  <speed>0.638974</speed>
+  <speed>1.275627</speed>
   <name>WP0070</name>
 </trkpt>
 <trkpt lat="54.786874000" lon="-2.344211000">
-  <speed>1.676724</speed>
+  <speed>1.275627</speed>
   <name>WP0071</name>
 </trkpt>
 <trkpt lat="54.786889500" lon="-2.344175300">
-  <speed>0.573724</speed>
+  <speed>0.000000</speed>
   <name>WP0072</name>
 </trkpt>
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-  <speed>0.448210</speed>
+  <speed>0.000000</speed>
   <name>WP0073</name>
 </trkpt>
 <trkpt lat="54.786887300" lon="-2.344152700">
-  <speed>0.410333</speed>
+  <speed>0.000000</speed>
   <name>WP0074</name>
 </trkpt>
 <trkpt lat="54.786967100" lon="-2.344200300">
   <course>18.980536</course>
-  <speed>1.878750</speed>
+  <speed>1.275627</speed>
   <name>WP0075</name>
 </trkpt>
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-  <speed>0.384889</speed>
+  <speed>0.000000</speed>
   <name>WP0076</name>
 </trkpt>
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   <course>146.881775</course>
-  <speed>10.627611</speed>
+  <speed>10.205019</speed>
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 </trkpt>
 <trkpt lat="54.786423800" lon="-2.344905900">
   <course>130.104218</course>
-  <speed>4.382399</speed>
+  <speed>3.826882</speed>
   <name>WP0078</name>
 </trkpt>
 <trkpt lat="54.786339400" lon="-2.344960500">
   <course>159.542908</course>
-  <speed>2.005446</speed>
+  <speed>2.551255</speed>
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 </trkpt>
 <trkpt lat="54.786129600" lon="-2.345095800">
   <course>159.601395</course>
-  <speed>4.983410</speed>
+  <speed>5.102509</speed>
   <name>WP0080</name>
 </trkpt>
 <trkpt lat="54.786113000" lon="-2.345044900">
-  <speed>0.750528</speed>
+  <speed>1.275627</speed>
   <name>WP0081</name>
 </trkpt>
 <trkpt lat="54.786210000" lon="-2.344944400">
-  <speed>2.515643</speed>
+  <speed>2.551255</speed>
   <name>WP0082</name>
 </trkpt>
 <trkpt lat="54.786279400" lon="-2.344882300">
-  <speed>1.738717</speed>
+  <speed>1.275627</speed>
   <name>WP0083</name>
 </trkpt>
 <trkpt lat="54.786328600" lon="-2.344835700">
-  <speed>1.248053</speed>
+  <speed>1.275627</speed>
   <name>WP0084</name>
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 <trkpt lat="54.786377000" lon="-2.344791200">
-  <speed>1.219648</speed>
+  <speed>1.275627</speed>
   <name>WP0085</name>
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-  <speed>1.044767</speed>
+  <speed>1.275627</speed>
   <name>WP0086</name>
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-  <speed>0.818463</speed>
+  <speed>1.275627</speed>
   <name>WP0087</name>
 </trkpt>
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-  <speed>0.726058</speed>
+  <speed>1.275627</speed>
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-  <speed>0.552369</speed>
+  <speed>1.063023</speed>
   <name>WP0089</name>
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-  <speed>0.563878</speed>
+  <speed>0.000000</speed>
   <name>WP0090</name>
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-  <speed>0.521951</speed>
+  <speed>0.000000</speed>
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-  <speed>0.455804</speed>
+  <speed>0.000000</speed>
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 <trkpt lat="54.786586200" lon="-2.344606000">
-  <speed>0.436778</speed>
+  <speed>0.000000</speed>
   <name>WP0093</name>
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-  <speed>0.398269</speed>
+  <speed>0.000000</speed>
   <name>WP0094</name>
 </trkpt>
 <trkpt lat="54.786616000" lon="-2.344576900">
-  <speed>0.363154</speed>
+  <speed>0.000000</speed>
   <name>WP0095</name>
 </trkpt>
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-  <speed>0.358144</speed>
+  <speed>0.000000</speed>
   <name>WP0096</name>
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 <trkpt lat="54.786643500" lon="-2.344550500">
-  <speed>0.341092</speed>
+  <speed>0.000000</speed>
   <name>WP0097</name>
 </trkpt>
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-  <speed>0.326479</speed>
+  <speed>0.000000</speed>
   <name>WP0098</name>
 </trkpt>
 <trkpt lat="54.786712800" lon="-2.344309700">
-  <speed>3.193230</speed>
+  <speed>3.826882</speed>
   <name>WP0099</name>
 </trkpt>
 <trkpt lat="54.786421700" lon="-2.344238300">
-  <speed>6.545493</speed>
+  <speed>6.378137</speed>
   <name>WP0100</name>
 </trkpt>
 <trkpt lat="54.786106300" lon="-2.344361100">
   <course>167.346375</course>
-  <speed>7.196805</speed>
+  <speed>7.653764</speed>
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+  <speed>10.205019</speed>
   <name>WP0209</name>
 </trkpt>
 <trkpt lat="54.787039700" lon="-2.343788000">
   <course>137.718918</course>
-  <speed>7.718669</speed>
+  <speed>7.653764</speed>
   <name>WP0210</name>
 </trkpt>
 <trkpt lat="54.786803800" lon="-2.344073800">
   <course>145.062073</course>
-  <speed>6.406710</speed>
+  <speed>6.378137</speed>
   <name>WP0211</name>
 </trkpt>
 <trkpt lat="54.786802300" lon="-2.344003800">
-  <speed>0.899237</speed>
+  <speed>1.275627</speed>
   <name>WP0212</name>
 </trkpt>
 <trkpt lat="54.786616200" lon="-2.344166600">
   <course>153.232285</course>
-  <speed>4.640603</speed>
+  <speed>5.102509</speed>
   <name>WP0213</name>
 </trkpt>
 <trkpt lat="54.786540500" lon="-2.344416600">
   <course>117.705025</course>
-  <speed>3.625063</speed>
+  <speed>3.826882</speed>
   <name>WP0214</name>
 </trkpt>
 <trkpt lat="54.786501700" lon="-2.344660800">
   <course>105.405190</course>
-  <speed>3.251814</speed>
+  <speed>3.826882</speed>
   <name>WP0215</name>
 </trkpt>
 <trkpt lat="54.786513700" lon="-2.344705000">
   <course>64.787437</course>
-  <speed>0.627275</speed>
+  <speed>0.000000</speed>
   <name>WP0216</name>
 </trkpt>
 <trkpt lat="54.786760100" lon="-2.344360500">
-  <speed>7.046580</speed>
+  <speed>7.653764</speed>
   <name>WP0217</name>
 </trkpt>
 <trkpt lat="54.787114900" lon="-2.343841500">
-  <speed>10.333961</speed>
+  <speed>10.205019</speed>
   <name>WP0218</name>
 </trkpt>
 <trkpt lat="54.786823000" lon="-2.344343500">
   <course>135.240036</course>
-  <speed>9.152427</speed>
+  <speed>8.929392</speed>
   <name>WP0219</name>
 </trkpt>
 <trkpt lat="54.786727900" lon="-2.344510000">
   <course>134.727890</course>
-  <speed>3.008605</speed>
+  <speed>2.551255</speed>
   <name>WP0220</name>
 </trkpt>
 <trkpt lat="54.786797300" lon="-2.344411700">
-  <speed>1.994969</speed>
+  <speed>2.551255</speed>
   <name>WP0221</name>
 </trkpt>
 <trkpt lat="54.786798000" lon="-2.344388300">
-  <speed>0.300548</speed>
+  <speed>0.000000</speed>
   <name>WP0222</name>
 </trkpt>
 <trkpt lat="54.787078000" lon="-2.343880200">
-  <speed>9.022692</speed>
+  <speed>8.929392</speed>
   <name>WP0223</name>
 </trkpt>
 <trkpt lat="54.787064400" lon="-2.343910000">
   <course>128.360611</course>
-  <speed>0.487963</speed>
+  <speed>0.000000</speed>
   <name>WP0224</name>
 </trkpt>
 <trkpt lat="54.787059700" lon="-2.343934800">
   <course>108.194084</course>
-  <speed>0.335216</speed>
+  <speed>0.000000</speed>
   <name>WP0225</name>
 </trkpt>
 <trkpt lat="54.787079300" lon="-2.343931200">
-  <speed>0.438841</speed>
+  <speed>0.000000</speed>
   <name>WP0226</name>
 </trkpt>
 <trkpt lat="54.787085100" lon="-2.343997400">
   <course>81.360321</course>
-  <speed>0.859589</speed>
+  <speed>1.275627</speed>
   <name>WP0227</name>
 </trkpt>
 <trkpt lat="54.787090000" lon="-2.343998400">
   <course>6.711519</course>
-  <speed>0.109195</speed>
+  <speed>0.000000</speed>
   <name>WP0228</name>
 </trkpt>
 <trkpt lat="54.787363500" lon="-2.343572600">
-  <speed>8.182794</speed>
+  <speed>7.653764</speed>
   <name>WP0229</name>
 </trkpt>
 <trkpt lat="54.787468300" lon="-2.343368600">
-  <speed>3.507539</speed>
+  <speed>3.826882</speed>
   <name>WP0230</name>
 </trkpt>
 <trkpt lat="54.787640700" lon="-2.343024900">
-  <speed>5.848113</speed>
+  <speed>6.378137</speed>
   <name>WP0231</name>
 </trkpt>
 <trkpt lat="54.787859200" lon="-2.342704200">
-  <speed>6.372952</speed>
+  <speed>6.378137</speed>
   <name>WP0232</name>
 </trkpt>
 <trkpt lat="54.787842200" lon="-2.342921800">
   <course>97.715996</course>
-  <speed>2.818878</speed>
+  <speed>2.551255</speed>
   <name>WP0233</name>
 </trkpt>
 <trkpt lat="54.787355300" lon="-2.343799700">
   <course>133.886002</course>
-  <speed>15.637352</speed>
+  <speed>15.307528</speed>
   <name>WP0234</name>
 </trkpt>
 <trkpt lat="54.787075000" lon="-2.344206800">
   <course>140.055038</course>
-  <speed>8.139894</speed>
+  <speed>7.653764</speed>
   <name>WP0235</name>
 </trkpt>
 <trkpt lat="54.787010700" lon="-2.344363000">
   <course>125.523293</course>
-  <speed>2.463761</speed>
+  <speed>2.551255</speed>
   <name>WP0236</name>
 </trkpt>
 <trkpt lat="54.786777100" lon="-2.344770400">
   <course>134.839066</course>
-  <speed>7.375820</speed>
+  <speed>7.653764</speed>
   <name>WP0237</name>
 </trkpt>
 <trkpt lat="54.786630800" lon="-2.344906200">
   <course>151.842575</course>
-  <speed>3.694468</speed>
+  <speed>3.826882</speed>
   <name>WP0238</name>
 </trkpt>
 <trkpt lat="54.786659200" lon="-2.344849700">
-  <speed>0.962317</speed>
+  <speed>1.275627</speed>
   <name>WP0239</name>
 </trkpt>
 <trkpt lat="54.786524100" lon="-2.345018400">
   <course>144.244812</course>
-  <speed>3.706478</speed>
+  <speed>3.826882</speed>
   <name>WP0240</name>
 </trkpt>
 <trkpt lat="54.786864600" lon="-2.344376200">
-  <speed>11.200036</speed>
+  <speed>11.480646</speed>
   <name>WP0241</name>
 </trkpt>
 <trkpt lat="54.787250300" lon="-2.343633900">
-  <speed>12.827707</speed>
+  <speed>12.756274</speed>
   <name>WP0242</name>
 </trkpt>
 <trkpt lat="54.787807600" lon="-2.342578800">
-  <speed>18.368883</speed>
+  <speed>17.858784</speed>
   <name>WP0243</name>
 </trkpt>
 <trkpt lat="54.787178600" lon="-2.344040000">
   <course>126.742546</course>
-  <speed>19.507580</speed>
+  <speed>19.134411</speed>
   <name>WP0244</name>
 </trkpt>
 <trkpt lat="54.786722100" lon="-2.344530500">
   <course>148.218903</course>
-  <speed>7.472546</speed>
+  <speed>7.175404</speed>
   <name>WP0245</name>
 </trkpt>
 <trkpt lat="54.786872300" lon="-2.344456200">
-  <speed>2.483881</speed>
+  <speed>2.733487</speed>
   <name>WP0246</name>
 </trkpt>
 <trkpt lat="54.786790900" lon="-2.344473100">
   <course>173.173264</course>
-  <speed>1.303782</speed>
+  <speed>0.911162</speed>
   <name>WP0247</name>
 </trkpt>
 <trkpt lat="54.786866200" lon="-2.344096600">
-  <speed>1.967664</speed>
+  <speed>1.962504</speed>
   <name>WP0248</name>
 </trkpt>
 <trkpt lat="54.786926000" lon="-2.344155900">
   <course>29.760809</course>
-  <speed>1.533561</speed>
+  <speed>1.275627</speed>
   <name>WP0249</name>
 </trkpt>
 <trkpt lat="54.787223500" lon="-2.343181500">
-  <speed>14.154443</speed>
+  <speed>14.031901</speed>
   <name>WP0250</name>
 </trkpt>
 <trkpt lat="54.787151700" lon="-2.343740700">
   <course>102.553291</course>
-  <speed>7.354651</speed>
+  <speed>7.653764</speed>
   <name>WP0251</name>
 </trkpt>
 <trkpt lat="54.787281000" lon="-2.343534000">
-  <speed>3.915116</speed>
+  <speed>3.826882</speed>
   <name>WP0252</name>
 </trkpt>
 <trkpt lat="54.787392100" lon="-2.343651100">
   <course>31.289225</course>
-  <speed>2.894576</speed>
+  <speed>2.551255</speed>
   <name>WP0253</name>
 </trkpt>
 <trkpt lat="54.787738600" lon="-2.342950500">
-  <speed>11.849266</speed>
+  <speed>11.480646</speed>
   <name>WP0254</name>
 </trkpt>
 <trkpt lat="54.787550500" lon="-2.343047500">
   <course>163.440262</course>
-  <speed>3.120760</speed>
+  <speed>2.733487</speed>
   <name>WP0255</name>
 </trkpt>
 <trkpt lat="54.786874100" lon="-2.344481700">
   <course>129.279663</course>
-  <speed>2.973259</speed>
+  <speed>3.029615</speed>
   <name>WP0256</name>
 </trkpt>
 <trkpt lat="54.787425000" lon="-2.342911400">
-  <speed>23.597078</speed>
+  <speed>22.961292</speed>
   <name>WP0257</name>
 </trkpt>
 <trkpt lat="54.787020700" lon="-2.344089400">
   <course>120.761200</course>
-  <speed>1.060176</speed>
+  <speed>1.075830</speed>
   <name>WP0258</name>
 </trkpt>
 <trkpt lat="54.787111400" lon="-2.344023100">
-  <speed>0.116564</speed>
+  <speed>0.135705</speed>
   <name>WP0259</name>
 </trkpt>
 </trkseg>
diff --git a/gpsbabel/wbt-200.c b/gpsbabel/wbt-200.c
index 685031bf5..7922f9230 100644
--- a/gpsbabel/wbt-200.c
+++ b/gpsbabel/wbt-200.c
@@ -193,10 +193,16 @@ static void data_chunk(struct read_state *st, const void *buf) {
     rtim = mkgmtime(&t);
 
     if (lat >= 100) {
-        /* Start new track */
+        /* Start new track in the northern hemisphere */
         lat -= 100;
         st->route_head = NULL;
+    } else if (lat <= -100) {
+        /* Start new track in the southern hemisphere */
+        /* This fix courtesy of Anton Frolich */
+        lat += 100;
+        st->route_head = NULL;
     } else {
+        double speed, gcd, dtim, rtm;
 		wpt = waypt_new();
 	
 		wpt->latitude	    = lat;;
@@ -204,14 +210,17 @@ static void data_chunk(struct read_state *st, const void *buf) {
 		wpt->creation_time  = rtim;
 		wpt->centiseconds   = 0;
 	
-		/* OK to reuse buffer now */
 		sprintf(wp_name, "WP%04d", ++st->wpn);
 		wpt->shortname      = xstrdup(wp_name);
 		
-		wpt->speed          = radtometers(
-	                            gcdist(RAD(st->plat), RAD(st->plon), 
-	                                   RAD(lat), RAD(lon))) /
-		                      (rtim - st->ptim);
+		/* Broken down to make it easier to find the source of rounding errors */
+        gcd                 = gcdist(RAD(st->plat), RAD(st->plon), RAD(lat), RAD(lon));
+        gcd                 = (double) ((long) (gcd * 1000000 + 0.5)) / 1000000;
+        dtim                = rtim - st->ptim;
+        rtm                 = radtometers(gcd);
+        speed               = rtm / dtim;
+        
+        wpt->speed          = speed;
 		wpt->course         = DEG(heading(RAD(st->plat), RAD(st->plon),
 	                                      RAD(lat), RAD(lon)));
 		wpt->pdop	        = 0;
-- 
2.30.2