diff --git a/.travis.yml b/.travis.yml
index 573c0d4..8a080d5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -47,7 +47,7 @@ install:
   - arduino --pref "build.path=$PWD/build" --save-prefs
   - arduino --install-boards esp32:esp32:1.0.6 --save-prefs
   - ln -s $PWD/libraries/SondeLib /usr/local/share/arduino/libraries/SondeLib
-  - arduino --install-library "U8g2"
+  - arduino --install-library "U8g2:2.29.11"
   - arduino --install-library "MicroNMEA"
   - arduino --install-library "GFX Library for Arduino"
 script:
diff --git a/RX_FSK/RX_FSK.ino b/RX_FSK/RX_FSK.ino
index 5c941b3..441120f 100644
--- a/RX_FSK/RX_FSK.ino
+++ b/RX_FSK/RX_FSK.ino
@@ -2051,7 +2051,7 @@ void setup()
 {
   char buf[12];
   // Open serial communications and wait for port to open:
-  Serial.begin(921600 /*115200*/);
+  Serial.begin(/*921600 */115200);
   for (int i = 0; i < 39; i++) {
     int v = gpio_get_level((gpio_num_t)i);
     Serial.printf("%d:%d ", i, v);
@@ -2428,6 +2428,7 @@ void loopDecoder() {
     i = 0;
     rtc_wdt_protect_off();
     rtc_wdt_disable();
+    // Requires serial speed 921600, otherweise interrupt wdt will occur
     heap_caps_dump(MALLOC_CAP_8BIT);
   }
 #endif
@@ -3357,12 +3358,6 @@ void loop() {
   }
 #endif
 
-#if FEATURE_SONDEHUB
-  if (sonde.config.sondehub.active) {
-    // interval check moved to sondehub_station_update to avoid having to calculate distance in auto mode twice
-    sondehub_station_update(&shclient, &sonde.config.sondehub);
-  }
-#endif
 }
 
 #if FEATURE_SONDEHUB
@@ -3471,6 +3466,7 @@ void sondehub_station_update(WiFiClient *client, struct st_sondehub *conf) {
   Serial.println(strlen(data));
   Serial.println(data);
   Serial.println("Waiting for response");
+  // TODO: better do this asyncrhonously
   String response = client->readString();
   Serial.println(response);
   Serial.println("Response done...");
@@ -3529,7 +3525,6 @@ void sondehub_reply_handler(WiFiClient *client) {
       }
     }
   }
-
   // send import requests if needed
   if (sonde.config.sondehub.fiactive)  {
     if (shImport == 2) {
@@ -3546,6 +3541,13 @@ void sondehub_reply_handler(WiFiClient *client) {
         sondehub_send_fimport(&shclient);
     }
   }
+
+  // also handle periodic station updates here...
+  // interval check moved to sondehub_station_update to avoid having to calculate distance in auto mode twice
+  if(shState == SH_CONN_IDLE) {
+    // (do not set station update while a telemetry report is being sent
+    sondehub_station_update(&shclient, &sonde.config.sondehub);
+  }
 }
 
 void sondehub_send_fimport(WiFiClient * client) {
@@ -3714,8 +3716,8 @@ void sondehub_send_data(WiFiClient * client, SondeInfo * s, struct st_sondehub *
   }
 	
   // Only send burst timer if RS41 and not 0
-  if ((realtype == STYPE_RS41) && ((int)s->burstKT != 0)) {
-    sprintf(w, "\"burst_timer\": %d,", (int)s->burstKT);
+  if ((realtype == STYPE_RS41) && ((int)s->countKT != 0)) {
+    sprintf(w, "\"burst_timer\": %d,", (int)s->countKT);
     w += strlen(w);
   }
 
diff --git a/RX_FSK/data/cfg.js b/RX_FSK/data/cfg.js
index 5dc7fc3..4e36234 100644
--- a/RX_FSK/data/cfg.js
+++ b/RX_FSK/data/cfg.js
@@ -4,7 +4,7 @@ var cfgs = [
 [ "mdnsname", "Network mDNS name"],
 [ "ephftp", "FTP server for ephemeris data (RS92 decoder)"],
 [ "debug", "Debug mode (0/1)" ],
-[ "maxsonde", "Maxumum number of QRG entries (must be &leg;50)" ],
+[ "maxsonde", "Maximum number of QRG entries (must be &leq; 50)" ],
 [ "rxlat", "Receiver fixed latitude"],
 [ "rxlon", "Receiver fixed longitude"],
 [ "rxalt", "Receiver fixed altitude"],
diff --git a/RX_FSK/src/RS41.cpp b/RX_FSK/src/RS41.cpp
index 83d2a5b..c73ec7a 100644
--- a/RX_FSK/src/RS41.cpp
+++ b/RX_FSK/src/RS41.cpp
@@ -499,7 +499,9 @@ void ProcessSubframe( byte *subframeBytes, int subframeNumber ) {
    }
    memcpy( s->rawData+16*subframeNumber, subframeBytes, 16);
    s->valid |= (1ULL << subframeNumber);
-   Serial.printf("subframe %d; valid: %x%032x\n", subframeNumber, (uint32_t)(s->valid>>32), (uint32_t)s->valid);
+   Serial.printf("subframe %d; valid: %x%08x\n", subframeNumber, (uint32_t)(s->valid>>32), (uint32_t)s->valid);
+   for(int i=0; i<16; i++) { Serial.printf("%02x[%c]", subframeBytes[i],( subframeBytes[i]>20 && subframeBytes[i]<127)? subframeBytes[i] : '.'); }
+   Serial.println("");
    // subframeReceived[subframeNumber] = true; // mark this row of the total subframe as complete
 
    #if 0
@@ -861,11 +863,12 @@ int RS41::waitRXcomplete() {
 int RS41::getSubtype(char *buf, int buflen, SondeInfo *si) {
 	struct subframeBuffer *sf = (struct subframeBuffer *)si->extra;
 	if(!sf) return -1;
-	if( (sf->valid & (3<<21)) != (3<<21) ) return -1;   // or 1 instead of 3 for the first 8 chars only, as in autorx?
+	if( ( (sf->valid>>0x21) &3) != 3 ) return -1;   // or 1 instead of 3 for the first 8 chars only, as in autorx?
 	if(buflen>11) buflen=11;			    // then buflen should be capped at 9 (8+trailing \0)
 	strncpy(buf, sf->value.names.variant, buflen);
 	buf[buflen-1]=0;
 	if(*buf==0) return -1;
+	Serial.printf("subframe valid: %x%08x; subtype=%s\n", (uint32_t)(sf->valid>>32), (uint32_t)sf->valid, buf);
 	return 0;
 }
 
diff --git a/RX_FSK/version.h b/RX_FSK/version.h
index cee9f1d..ec175bc 100644
--- a/RX_FSK/version.h
+++ b/RX_FSK/version.h
@@ -1,4 +1,4 @@
 const char *version_name = "rdzTTGOsonde";
-const char *version_id = "devel20210919";
+const char *version_id = "devel20210920";
 const int SPIFFS_MAJOR=2;
 const int SPIFFS_MINOR=16;