diff --git a/HISTORY b/HISTORY
index 6d531d6..22d1cae 100644
--- a/HISTORY
+++ b/HISTORY
@@ -126,3 +126,5 @@ VDR Plugin 'satip' Revision History
 - Robustify the server discovery.
 - Fixed a memory leak in TinyXML implementation
   (Thanks to Oliver Endriss).
+- Updated against SAT>IP protocol specification
+  version 1.2.2.
diff --git a/param.c b/param.c
index a8c3cf0..b3d55a2 100644
--- a/param.c
+++ b/param.c
@@ -173,10 +173,13 @@ cString GetTransponderUrlParameters(const cChannel *channelP)
      ST("C  2") q += PrintUrlString(q, STBUFLEFT, dtp.Bandwidth(),    SatipBandwidthValues);
      ST("  T*") q += PrintUrlString(q, STBUFLEFT, dtp.Guard(),        SatipGuardValues);
      ST("CST*") q += PrintUrlString(q, STBUFLEFT, dtp.CoderateH(),    SatipCodeRateValues);
+     ST(" S 1") q += snprintf(q,       STBUFLEFT, "&plts=off");       // SAT>IP protocol specification 1.2.2
      ST(" S 2") q += PrintUrlString(q, STBUFLEFT, dtp.Pilot(),        SatipPilotValues);
+     ST(" S 1") q += snprintf(q,       STBUFLEFT, "&mtype=qpsk");     // SAT>IP protocol specification 1.2.2
      ST(" S 2") q += PrintUrlString(q, STBUFLEFT, dtp.Modulation(),   SatipModulationValues);
      ST("  T*") q += PrintUrlString(q, STBUFLEFT, dtp.Modulation(),   SatipModulationValues);
      ST("C  1") q += PrintUrlString(q, STBUFLEFT, dtp.Modulation(),   SatipModulationValues);
+     ST(" S 1") q += snprintf(q,       STBUFLEFT, "&ro=0.35");        // SAT>IP protocol specification 1.2.2
      ST(" S 2") q += PrintUrlString(q, STBUFLEFT, dtp.RollOff(),      SatipRollOffValues);
      ST(" S *") q += PrintUrlString(q, STBUFLEFT, dtp.System(),       SatipSystemValuesSat);
      ST("C  *") q += PrintUrlString(q, STBUFLEFT, dtp.System(),       SatipSystemValuesCable);