diff --git a/docs/software/nrf52-TODO.md b/docs/software/nrf52-TODO.md
index 0b0cfb6d..46d32034 100644
--- a/docs/software/nrf52-TODO.md
+++ b/docs/software/nrf52-TODO.md
@@ -196,7 +196,7 @@ Nice ideas worth considering someday...
 - DONE neg 7 error code from receive
 - DONE remove unused sx1262 lib from github
 - at boot we are starting our message IDs at 1, rather we should start them at a random number. also, seed random based on timer. this could be the cause of our first message not seen bug.
-- add a NEMA based GPS driver to test GPS
+- add a NMEA based GPS driver to test GPS
 - DONE use "variants" to get all gpio bindings
 - DONE plug in correct variants for the real board
 - turn on DFU assistance in the appload using the nordic DFU helper lib call
diff --git a/src/gps/NEMAGPS.cpp b/src/gps/NMEAGPS.cpp
similarity index 78%
rename from src/gps/NEMAGPS.cpp
rename to src/gps/NMEAGPS.cpp
index a1d848ad..6b797fd7 100644
--- a/src/gps/NEMAGPS.cpp
+++ b/src/gps/NMEAGPS.cpp
@@ -1,4 +1,4 @@
-#include "NEMAGPS.h"
+#include "NMEAGPS.h"
 #include "configuration.h"
 #include "timing.h"
 
@@ -11,7 +11,7 @@ static int32_t toDegInt(RawDegrees d)
     return r;
 }
 
-void NEMAGPS::loop()
+void NMEAGPS::loop()
 {
     while (_serial_gps->available() > 0) {
         int c = _serial_gps->read();
@@ -44,6 +44,9 @@ void NEMAGPS::loop()
             isConnected = true; // we seem to have a real GPS (but not necessarily a lock)
         }
 
+        uint8_t fixtype = reader.fixQuality();
+        hasValidLocation = ((fixtype >= 1) && (fixtype <= 5));
+
         if (reader.location.isUpdated()) {
             if (reader.altitude.isValid())
                 altitude = reader.altitude.meters();
@@ -58,18 +61,21 @@ void NEMAGPS::loop()
                 dop = reader.hdop.value();
             }
             if (reader.course.isValid()) {
-                heading = reader.course.value() * 1e3;  //Scale the heading (in degrees * 10^-2) to match the expected degrees * 10^-5
+                heading =
+                    reader.course.value() * 1e3; // Scale the heading (in degrees * 10^-2) to match the expected degrees * 10^-5
             }
             if (reader.satellites.isValid()) {
                 numSatellites = reader.satellites.value();
             }
 
             // expect gps pos lat=37.520825, lon=-122.309162, alt=158
-            DEBUG_MSG("new NEMA GPS pos lat=%f, lon=%f, alt=%d, hdop=%f, heading=%f\n", latitude * 1e-7, longitude * 1e-7, altitude, dop * 1e-2, heading * 1e-5);
+            DEBUG_MSG("new NMEA GPS pos lat=%f, lon=%f, alt=%d, hdop=%f, heading=%f\n", latitude * 1e-7, longitude * 1e-7,
+                      altitude, dop * 1e-2, heading * 1e-5);
         }
 
         // Notify any status instances that are observing us
-        const meshtastic::GPSStatus status = meshtastic::GPSStatus(hasLock(), isConnected, latitude, longitude, altitude, dop, heading, numSatellites);
+        const meshtastic::GPSStatus status =
+            meshtastic::GPSStatus(hasLock(), isConnected, latitude, longitude, altitude, dop, heading, numSatellites);
         newStatus.notifyObservers(&status);
     }
 }
\ No newline at end of file
diff --git a/src/gps/NEMAGPS.h b/src/gps/NMEAGPS.h
similarity index 77%
rename from src/gps/NEMAGPS.h
rename to src/gps/NMEAGPS.h
index 2640bcef..71b24a65 100644
--- a/src/gps/NEMAGPS.h
+++ b/src/gps/NMEAGPS.h
@@ -1,19 +1,19 @@
 #pragma once
 
+#include "../concurrency/PeriodicTask.h"
 #include "GPS.h"
 #include "Observer.h"
-#include "../concurrency/PeriodicTask.h"
 #include "TinyGPS++.h"
 
 /**
- * A gps class thatreads from a NEMA GPS stream (and FIXME - eventually keeps the gps powered down except when reading)
+ * A gps class thatreads from a NMEA GPS stream (and FIXME - eventually keeps the gps powered down except when reading)
  *
  * When new data is available it will notify observers.
  */
-class NEMAGPS : public GPS
+class NMEAGPS : public GPS
 {
     TinyGPSPlus reader;
-    
+
     uint32_t lastUpdateMsec = 0;
 
   public:
diff --git a/src/gps/UBloxGPS.cpp b/src/gps/UBloxGPS.cpp
index 624ab77b..93e8a01c 100644
--- a/src/gps/UBloxGPS.cpp
+++ b/src/gps/UBloxGPS.cpp
@@ -103,7 +103,7 @@ bool UBloxGPS::factoryReset()
 {
     bool ok = false;
 
-    // It is useful to force back into factory defaults (9600baud, NEMA to test the behavior of boards that don't have
+    // It is useful to force back into factory defaults (9600baud, NMEA to test the behavior of boards that don't have
     // GPS_TX connected)
     ublox.factoryReset();
     delay(5000);
diff --git a/src/main.cpp b/src/main.cpp
index cc0c9a0c..b0d133f2 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -23,7 +23,7 @@
 
 #include "MeshRadio.h"
 #include "MeshService.h"
-#include "NEMAGPS.h"
+#include "NMEAGPS.h"
 #include "NodeDB.h"
 #include "PowerFSM.h"
 #include "UBloxGPS.h"
@@ -258,16 +258,16 @@ void setup()
 
         if (GPS::_serial_gps) {
             // Some boards might have only the TX line from the GPS connected, in that case, we can't configure it at all.  Just
-            // assume NEMA at 9600 baud.
-            DEBUG_MSG("Hoping that NEMA might work\n");
+            // assume NMEA at 9600 baud.
+            DEBUG_MSG("Hoping that NMEA might work\n");
 
-            // dumb NEMA access only work for serial GPSes)
-            gps = new NEMAGPS();
+            // dumb NMEA access only work for serial GPSes)
+            gps = new NMEAGPS();
             gps->setup();
         }
     }
 #else
-    gps = new NEMAGPS();
+    gps = new NMEAGPS();
     gps->setup();
 #endif
     gpsStatus->observe(&gps->newStatus);
@@ -412,7 +412,7 @@ void loop()
 
     // Update the screen last, after we've figured out what to show.
     screen.debug_info()->setChannelNameStatus(getChannelName());
-    
+
     // No GPS lock yet, let the OS put the main CPU in low power mode for 100ms (or until another interrupt comes in)
     // i.e. don't just keep spinning in loop as fast as we can.
     // DEBUG_MSG("msecs %d\n", msecstosleep);
diff --git a/src/mesh/MeshService.cpp b/src/mesh/MeshService.cpp
index f5d0ac17..c614c086 100644
--- a/src/mesh/MeshService.cpp
+++ b/src/mesh/MeshService.cpp
@@ -206,6 +206,13 @@ void MeshService::reloadConfig()
     nodeDB.saveToDisk();
 }
 
+/// The owner User record just got updated, update our node DB and broadcast the info into the mesh
+void MeshService::reloadOwner()
+{
+    sendOurOwner();
+    nodeDB.saveToDisk();
+}
+
 /**
  *  Given a ToRadio buffer parse it and properly handle it (setup radio, owner or send packet into the mesh)
  * Called by PhoneAPI.handleToRadio.  Note: p is a scratch buffer, this function is allowed to write to it but it can not keep a
@@ -292,8 +299,8 @@ int MeshService::onGPSChanged(const meshtastic::GPSStatus *unused)
     p->decoded.which_payload = SubPacket_position_tag;
 
     Position &pos = p->decoded.position;
-    // !zero or !zero lat/long means valid
-    if (gps->latitude != 0 || gps->longitude != 0) {
+
+    if (gps->hasLock()) {
         if (gps->altitude != 0)
             pos.altitude = gps->altitude;
         pos.latitude_i = gps->latitude;
diff --git a/src/mesh/MeshService.h b/src/mesh/MeshService.h
index 7e881077..a12f087b 100644
--- a/src/mesh/MeshService.h
+++ b/src/mesh/MeshService.h
@@ -67,7 +67,7 @@ class MeshService
     void reloadConfig();
 
     /// The owner User record just got updated, update our node DB and broadcast the info into the mesh
-    void reloadOwner() { sendOurOwner(); }
+    void reloadOwner();
 
     /// Called when the user wakes up our GUI, normally sends our latest location to the mesh (if we have it), otherwise at least
     /// sends our owner
diff --git a/src/mesh/RF95Interface.cpp b/src/mesh/RF95Interface.cpp
index 3d03e403..594cec91 100644
--- a/src/mesh/RF95Interface.cpp
+++ b/src/mesh/RF95Interface.cpp
@@ -41,6 +41,8 @@ bool RF95Interface::init()
     if (power > MAX_POWER) // This chip has lower power limits than some
         power = MAX_POWER;
 
+    limitPower();
+    
     iface = lora = new RadioLibRF95(&module);
 
 #ifdef RF95_TCXO
diff --git a/src/mesh/RadioInterface.cpp b/src/mesh/RadioInterface.cpp
index 0cdd4da6..ae4ef421 100644
--- a/src/mesh/RadioInterface.cpp
+++ b/src/mesh/RadioInterface.cpp
@@ -107,7 +107,7 @@ bool RadioInterface::init()
  * djb2 by Dan Bernstein.
  * http://www.cse.yorku.ca/~oz/hash.html
  */
-unsigned long hash(char *str)
+unsigned long hash(const char *str)
 {
     unsigned long hash = 5381;
     int c;
@@ -136,6 +136,25 @@ void RadioInterface::applyModemConfig()
               power);
 }
 
+/**
+ * Some regulatory regions limit xmit power.
+ * This function should be called by subclasses after setting their desired power.  It might lower it
+ */
+void RadioInterface::limitPower()
+{
+    uint8_t maxPower = 255; // No limit
+
+#ifdef HW_VERSION_JP
+    maxPower = 13; // See https://github.com/meshtastic/Meshtastic-device/issues/346
+#endif
+    if (power > maxPower) {
+        DEBUG_MSG("Lowering transmit power because of regulatory limits\n");
+        power = maxPower;
+    }
+
+    DEBUG_MSG("Set radio: final power level=%d\n", power);
+}
+
 ErrorCode SimRadio::send(MeshPacket *p)
 {
     DEBUG_MSG("SimRadio.send\n");
diff --git a/src/mesh/RadioInterface.h b/src/mesh/RadioInterface.h
index b8cba208..645ee5c0 100644
--- a/src/mesh/RadioInterface.h
+++ b/src/mesh/RadioInterface.h
@@ -119,6 +119,12 @@ class RadioInterface : protected concurrency::NotifiedWorkerThread
 
     virtual void loop() {} // Idle processing
 
+    /**
+     * Some regulatory regions limit xmit power.
+     * This function should be called by subclasses after setting their desired power.  It might lower it
+     */
+    void limitPower();
+
     /**
      * Convert our modemConfig enum into wf, sf, etc...
      *
diff --git a/src/mesh/SX1262Interface.cpp b/src/mesh/SX1262Interface.cpp
index 75a84034..130f340c 100644
--- a/src/mesh/SX1262Interface.cpp
+++ b/src/mesh/SX1262Interface.cpp
@@ -43,6 +43,9 @@ bool SX1262Interface::init()
 
     if (power > 22) // This chip has lower power limits than some
         power = 22;
+
+    limitPower();
+
     int res = lora.begin(freq, bw, sf, cr, syncWord, power, currentLimit, preambleLength, tcxoVoltage, useRegulatorLDO);
     DEBUG_MSG("SX1262 init result %d\n", res);