diff --git a/auto_rx/autorx/__init__.py b/auto_rx/autorx/__init__.py
index d4a6269..42ec06e 100644
--- a/auto_rx/autorx/__init__.py
+++ b/auto_rx/autorx/__init__.py
@@ -12,7 +12,7 @@ from queue import Queue
 # MINOR - New sonde type support, other fairly big changes that may result in telemetry or config file incompatability issus.
 # PATCH - Small changes, or minor feature additions.
 
-__version__ = "1.7.0"
+__version__ = "1.7.1-beta1"
 
 
 # Global Variables
diff --git a/auto_rx/autorx/scan.py b/auto_rx/autorx/scan.py
index 45f84d4..cc2d791 100644
--- a/auto_rx/autorx/scan.py
+++ b/auto_rx/autorx/scan.py
@@ -533,11 +533,13 @@ def detect_sonde(
         )
         _sonde_type = "IMET"
     elif "IMET1" in _type:
+        # This could actually be a wideband iMet sonde. We treat this as a IMET4.
         logging.debug(
-            "Scanner (%s) - Detected a iMet Sonde! (Type %s - Unsupported) (Score: %.2f)"
+            "Scanner (%s) - Possible detection of a Wideband iMet Sonde! (Type %s) (Score: %.2f)"
             % (_sdr_name, _type, _score)
         )
-        _sonde_type = "IMET1"
+        # Override the type to IMET4.
+        _sonde_type = "IMET"
     elif "IMETafsk" in _type:
         logging.debug(
             "Scanner (%s) - Detected a iMet Sonde! (Type %s - Unsupported) (Score: %.2f)"
diff --git a/auto_rx/autorx/sondehub.py b/auto_rx/autorx/sondehub.py
index fbb3b03..3d241b0 100644
--- a/auto_rx/autorx/sondehub.py
+++ b/auto_rx/autorx/sondehub.py
@@ -291,6 +291,12 @@ class SondehubUploader(object):
         if "ref_datetime" in telemetry:
             _output["ref_datetime"] = telemetry["ref_datetime"]
 
+        if "rs41_mainboard" in telemetry:
+            _output["rs41_mainboard"] = telemetry["rs41_mainboard"]
+
+        if "rs41_mainboard_fw" in telemetry:
+            _output["rs41_mainboard_fw"] = str(telemetry["rs41_mainboard_fw"])
+
         # Handle the additional SNR and frequency estimation if we have it
         if "snr" in telemetry:
             _output["snr"] = telemetry["snr"]
diff --git a/demod/mod/rs41mod.c b/demod/mod/rs41mod.c
index 38a5cc3..0eb4bab 100644
--- a/demod/mod/rs41mod.c
+++ b/demod/mod/rs41mod.c
@@ -139,6 +139,7 @@ typedef struct {
     ui16_t conf_cd; // kill countdown (sec) (kt or bt)
     ui8_t  conf_bk; // burst kill
     char rstyp[9];  // RS41-SG, RS41-SGP
+    char rsm[10];   // RSM421
     int  aux;
     char xdata[XDATA_LEN+16]; // xdata: aux_str1#aux_str2 ...
     option_t option;
@@ -330,7 +331,8 @@ GPS chip: ublox UBX-G6010-ST
 #define pos_Calburst    0x05E  // 1 byte, calfr 0x02
 // ? #define pos_Caltimer  0x05A  // 2 byte, calfr 0x02 ?
 #define pos_CalRSTyp    0x05B  // 8 byte, calfr 0x21 (+2 byte in 0x22?)
-        // weitere chars in calfr 0x22/0x23; weitere ID
+        // weitere chars in calfr 0x22/0x23; weitere ID (RSM)
+#define pos_CalRSM      0x055  // 6 byte, calfr 0x22
 
 #define crc_PTU        (1<<1)
 #define xor_PTU        0xE388  // ^0x99A2=0x0x7A2A
@@ -448,6 +450,7 @@ static int get_SondeID(gpx_t *gpx, int crc, int ofs) {
             memset(gpx->calfrchk, 0, 51); // 0x00..0x32
             // reset conf data
             memset(gpx->rstyp, 0, 9);
+            memset(gpx->rsm, 0, 10);
             gpx->freq = 0;
             gpx->conf_fw = 0;
             gpx->conf_bt = 0;
@@ -1366,6 +1369,7 @@ static int get_Calconf(gpx_t *gpx, int out, int ofs) {
     ui16_t fw = 0;
     int freq = 0, f0 = 0, f1 = 0;
     char sondetyp[9];
+    char rsmtyp[10];
     int err = 0;
 
     byte = gpx->frame[pos_CalData+ofs];
@@ -1451,6 +1455,17 @@ static int get_Calconf(gpx_t *gpx, int out, int ofs) {
                 }
             }
         }
+
+        if (calfr == 0x22) {
+            for (i = 0; i < 10; i++) rsmtyp[i] = 0;
+            for (i = 0; i < 8; i++) {
+                byte = gpx->frame[pos_CalRSM+ofs + i];
+                if ((byte >= 0x20) && (byte < 0x7F)) rsmtyp[i] = byte;
+                else /*if (byte == 0x00)*/ rsmtyp[i] = '\0';
+            }
+            if (out && gpx->option.vbs) fprintf(stdout, ": %s ", rsmtyp);
+            strcpy(gpx->rsm, rsmtyp);
+        }
     }
 
     return 0;
@@ -2088,6 +2103,12 @@ static int print_position(gpx_t *gpx, int ec) {
                             if (gpx->freq > 0) fq_kHz = gpx->freq;
                             fprintf(stdout, ", \"freq\": %d", fq_kHz);
                         }
+                        if (*gpx->rsm) {  // RSM type
+                            fprintf(stdout, ", \"rs41_mainboard\": \"%s\"", gpx->rsm);
+                        }
+                        if (gpx->conf_fw) {  // firmware
+                            fprintf(stdout, ", \"rs41_mainboard_fw\": %d", gpx->conf_fw);
+                        }
 
                         // Include frequency derived from subframe information if available.
                         if (gpx->freq > 0) {