diff --git a/scripts/buildManifest.py b/scripts/buildManifest.py
index db29b352..2664a39f 100644
--- a/scripts/buildManifest.py
+++ b/scripts/buildManifest.py
@@ -33,16 +33,16 @@ def buildManifest(path, infile, outfile):
     esp32 = {}
     esp32["chipFamily"] = "ESP32"
     esp32["parts"] = []
-    esp32["parts"].append({"path": "bootloader.bin", "offset": 4096})
-    esp32["parts"].append({"path": "partitions.bin", "offset": 32768})
-    esp32["parts"].append({"path": "ota.bin", "offset": 57344})
-    esp32["parts"].append({"path": version[1] + "_" + sha + "_esp32.bin", "offset": 65536})
+    esp32["parts"].append({"path": "ESP32/bootloader.bin", "offset": 4096})
+    esp32["parts"].append({"path": "ESP32/partitions.bin", "offset": 32768})
+    esp32["parts"].append({"path": "ESP32/ota.bin", "offset": 57344})
+    esp32["parts"].append({"path": "ESP32/" + version[1] + "_" + sha + "_esp32.bin", "offset": 65536})
     data["builds"].append(esp32)
 
     esp8266 = {}
     esp8266["chipFamily"] = "ESP8266"
     esp8266["parts"] = []
-    esp8266["parts"].append({"path": version[1] + "_" + sha + "_esp8266.bin", "offset": 0})
+    esp8266["parts"].append({"path": "ESP8266/" + version[1] + "_" + sha + "_esp8266.bin", "offset": 0})
     data["builds"].append(esp8266)
 
     jsonString = json.dumps(data, indent=2)
diff --git a/scripts/getVersion.py b/scripts/getVersion.py
index f0000758..b6bef458 100644
--- a/scripts/getVersion.py
+++ b/scripts/getVersion.py
@@ -50,63 +50,74 @@ def readVersion(path, infile):
                     versionnumber += line[p+13:].rstrip() + "."
     
     os.mkdir(path + "firmware/")
-    os.mkdir(path + "firmware/s3/")
+    os.mkdir(path + "firmware/ESP8266/")
+    os.mkdir(path + "firmware/ESP8285/")
+    os.mkdir(path + "firmware/ESP32/")
+    os.mkdir(path + "firmware/ESP32-S2/")
+    os.mkdir(path + "firmware/ESP32-S3/")
     sha = os.getenv("SHA",default="sha")
 
     versionout = version[:-1] + "_" + sha + "_esp8266.bin"
     src = path + ".pio/build/esp8266/firmware.bin"
-    dst = path + "firmware/" + versionout
+    dst = path + "firmware/ESP8266/" + versionout
     os.rename(src, dst)
 
     versionout = version[:-1] + "_" + sha + "_esp8266_prometheus.bin"
     src = path + ".pio/build/esp8266-prometheus/firmware.bin"
-    dst = path + "firmware/" + versionout
+    dst = path + "firmware/ESP8266/" + versionout
     os.rename(src, dst)
     
     versionout = version[:-1] + "_" + sha + "_esp8285.bin"
     src = path + ".pio/build/esp8285/firmware.bin"
-    dst = path + "firmware/" + versionout
+    dst = path + "firmware/ESP8285/" + versionout
     os.rename(src, dst)
     gzip_bin(dst, dst + ".gz")
 
     versionout = version[:-1] + "_" + sha + "_esp32.bin"
     src = path + ".pio/build/esp32-wroom32/firmware.bin"
-    dst = path + "firmware/" + versionout
+    dst = path + "firmware/ESP32/" + versionout
     os.rename(src, dst)
 
     versionout = version[:-1] + "_" + sha + "_esp32_prometheus.bin"
     src = path + ".pio/build/esp32-wroom32-prometheus/firmware.bin"
-    dst = path + "firmware/" + versionout
+    dst = path + "firmware/ESP32/" + versionout
     os.rename(src, dst)
 
     versionout = version[:-1] + "_" + sha + "_esp32_ethernet.bin"
     src = path + ".pio/build/esp32-wroom32-ethernet/firmware.bin"
-    dst = path + "firmware/" + versionout
+    dst = path + "firmware/ESP32/" + versionout
     os.rename(src, dst)
 
     versionout = version[:-1] + "_" + sha + "_esp32s2-mini.bin"
     src = path + ".pio/build/esp32-s2-mini/firmware.bin"
-    dst = path + "firmware/" + versionout
+    dst = path + "firmware/ESP32-S2/" + versionout
     os.rename(src, dst)
 
     versionout = version[:-1] + "_" + sha + "_esp32s3.bin"
     src = path + ".pio/build/opendtufusionv1/firmware.bin"
-    dst = path + "firmware/s3/" + versionout
+    dst = path + "firmware/ESP32-S3/" + versionout
     os.rename(src, dst)
 
     # other ESP32 bin files
     src = path + ".pio/build/esp32-wroom32/"
-    dst = path + "firmware/"
+    dst = path + "firmware/ESP32/"
     os.rename(src + "bootloader.bin", dst + "bootloader.bin")
     os.rename(src + "partitions.bin", dst + "partitions.bin")
-    genOtaBin(path + "firmware/")
+    genOtaBin(dst)
 
-    # other ESP32S3 bin files
+    # other ESP32-S2 bin files
+    src = path + ".pio/build/esp32-s2-mini/"
+    dst = path + "firmware/ESP32-S2/"
+    os.rename(src + "bootloader.bin", dst + "bootloader.bin")
+    os.rename(src + "partitions.bin", dst + "partitions.bin")
+    genOtaBin(dst)
+
+    # other ESP32-S3 bin files
     src = path + ".pio/build/opendtufusionv1/"
-    dst = path + "firmware/s3/"
+    dst = path + "firmware/ESP32-S3/"
     os.rename(src + "bootloader.bin", dst + "bootloader.bin")
     os.rename(src + "partitions.bin", dst + "partitions.bin")
-    os.rename(src + "ota.bin", dst + "ota.bin")
+    genOtaBin(dst)
 
     os.rename("../scripts/gh-action-dev-build-flash.html", path + "install.html")
 
diff --git a/src/CHANGES.md b/src/CHANGES.md
index d611f052..a16a638e 100644
--- a/src/CHANGES.md
+++ b/src/CHANGES.md
@@ -1,5 +1,14 @@
 # Development Changes
 
+## 0.7.44 - 2023-08-28
+* fix `last_success` transmitted to often #1124
+
+## 0.7.43 - 2023-08-28
+* improved RSSI for NRF24, now it's read per package (and inverter) #1129
+* arranged `heap` related info together in `/system`
+* fix display navi during save
+* clean up binary output, separated to folders
+
 ## 0.7.42 - 2023-08-27
 * fix ePaper for opendtufusion_v2.x boards (Software SPI)
 * add signal strength for NRF24 - PR #1119
diff --git a/src/app.cpp b/src/app.cpp
index 13b44fe4..25a849ee 100644
--- a/src/app.cpp
+++ b/src/app.cpp
@@ -145,9 +145,11 @@ void app::loopStandard(void) {
             if (mConfig->serial.debug) {
                 DPRINT(DBG_INFO, F("RX "));
                 DBGPRINT(String(p->len));
-                DBGPRINT(F("B Ch"));
+                DBGPRINT(F(" CH"));
                 DBGPRINT(String(p->ch));
-                DBGPRINT(F(" | "));
+                DBGPRINT(F(", "));
+                DBGPRINT(String(p->rssi));
+                DBGPRINT(F("dBm | "));
                 ah::dumpBuf(p->packet, p->len);
             }
             mStat.frmCnt++;
@@ -172,7 +174,7 @@ void app::loopStandard(void) {
             if (mConfig->serial.debug) {
                 DPRINT(DBG_INFO, F("RX "));
                 DBGPRINT(String(p->data[0]));
-                DBGPRINT(F(" RSSI "));
+                DBGPRINT(F(", "));
                 DBGPRINT(String(p->rssi));
                 DBGPRINT(F("dBm | "));
                 ah::dumpBuf(&p->data[1], p->data[0]);
diff --git a/src/defines.h b/src/defines.h
index 25779f7b..ca67f8fb 100644
--- a/src/defines.h
+++ b/src/defines.h
@@ -13,12 +13,13 @@
 //-------------------------------------
 #define VERSION_MAJOR       0
 #define VERSION_MINOR       7
-#define VERSION_PATCH       42
+#define VERSION_PATCH       44
 
 //-------------------------------------
 typedef struct {
     uint8_t ch;
     uint8_t len;
+    int8_t rssi;
     uint8_t packet[MAX_RF_PAYLOAD_SIZE];
 } packet_t;
 
diff --git a/src/hm/hmDefines.h b/src/hm/hmDefines.h
index 3c63aa9e..7b1549ab 100644
--- a/src/hm/hmDefines.h
+++ b/src/hm/hmDefines.h
@@ -11,7 +11,7 @@
 
 // inverter generations
 enum {IV_MI = 0, IV_HM, IV_HMS, IV_HMT, IV_UNKNOWN};
-const char* const generationNames[] = {"HM", "MI", "HMS", "HMT", "UNKNOWN"};
+const char* const generationNames[] = {"MI", "HM", "HMS", "HMT", "UNKNOWN"};
 
 // units
 enum {UNIT_V = 0, UNIT_A, UNIT_W,  UNIT_WH, UNIT_KWH, UNIT_HZ, UNIT_C, UNIT_PCT, UNIT_VAR, UNIT_NONE};
diff --git a/src/hm/hmPayload.h b/src/hm/hmPayload.h
index 441981cf..f5b56405 100644
--- a/src/hm/hmPayload.h
+++ b/src/hm/hmPayload.h
@@ -18,6 +18,7 @@ typedef struct {
     uint8_t invId;
     uint32_t ts;
     uint8_t data[MAX_PAYLOAD_ENTRIES][MAX_RF_PAYLOAD_SIZE];
+    int8_t rssi[MAX_PAYLOAD_ENTRIES];
     uint8_t len[MAX_PAYLOAD_ENTRIES];
     bool complete;
     uint8_t maxPackId;
@@ -172,6 +173,7 @@ class HmPayload {
                         memcpy(mPayload[iv->id].data[(*pid & 0x7F) - 1], &p->packet[10], p->len - 11);
                         mPayload[iv->id].len[(*pid & 0x7F) - 1] = p->len - 11;
                         mPayload[iv->id].gotFragment = true;
+                        mPayload[iv->id].rssi[(*pid & 0x7F) - 1] = p->rssi;
                     }
 
                     if ((*pid & ALL_FRAMES) == ALL_FRAMES) {
@@ -284,8 +286,8 @@ class HmPayload {
                     } else {  // payload complete
                         DPRINT(DBG_INFO, F("procPyld: cmd:  0x"));
                         DBGHEXLN(mPayload[iv->id].txCmd);
-                        DPRINT(DBG_INFO, F("procPyld: txid: 0x"));
-                        DBGHEXLN(mPayload[iv->id].txId);
+                        //DPRINT(DBG_DEBUG, F("procPyld: txid: 0x"));
+                        //DBGHEXLN(mPayload[iv->id].txId);
                         DPRINT(DBG_DEBUG, F("procPyld: max:  "));
                         DPRINTLN(DBG_DEBUG, String(mPayload[iv->id].maxPackId));
                         record_t<> *rec = iv->getRecordStruct(mPayload[iv->id].txCmd);  // choose the parser
@@ -296,6 +298,8 @@ class HmPayload {
 
                         memset(payload, 0, 150);
 
+                        int8_t rssi = -127;
+
                         for (uint8_t i = 0; i < (mPayload[iv->id].maxPackId); i++) {
                             if((mPayload[iv->id].len[i] + payloadLen) > 150) {
                                 DPRINTLN(DBG_ERROR, F("payload buffer to small!"));
@@ -303,12 +307,16 @@ class HmPayload {
                             }
                             memcpy(&payload[payloadLen], mPayload[iv->id].data[i], (mPayload[iv->id].len[i]));
                             payloadLen += (mPayload[iv->id].len[i]);
+                            // get worst RSSI
+                            if(mPayload[iv->id].rssi[i] > rssi)
+                                rssi = mPayload[iv->id].rssi[i];
                             yield();
                         }
                         payloadLen -= 2;
 
                         if (mSerialDebug) {
-                            DPRINT(DBG_INFO, F("Payload ("));
+                            DPRINT_IVID(DBG_INFO, iv->id);
+                            DBGPRINT(F("Payload ("));
                             DBGPRINT(String(payloadLen));
                             DBGPRINT(F("): "));
                             ah::dumpBuf(payload, payloadLen);
@@ -325,6 +333,7 @@ class HmPayload {
                                 iv->addValue(i, payload, rec);
                                 yield();
                             }
+                            iv->rssi = rssi;
                             iv->doCalculations();
                             notify(mPayload[iv->id].txCmd, iv);
 
@@ -388,8 +397,8 @@ class HmPayload {
         }
 
         void reset(uint8_t id) {
-            DPRINT_IVID(DBG_INFO, id);
-            DBGPRINTLN(F("resetPayload"));
+            //DPRINT_IVID(DBG_INFO, id);
+            //DBGPRINTLN(F("resetPayload"));
             memset(mPayload[id].len, 0, MAX_PAYLOAD_ENTRIES);
             mPayload[id].txCmd       = 0;
             mPayload[id].gotFragment = false;
diff --git a/src/hm/hmRadio.h b/src/hm/hmRadio.h
index cd9018b8..0b5feea5 100644
--- a/src/hm/hmRadio.h
+++ b/src/hm/hmRadio.h
@@ -239,16 +239,6 @@ class HmRadio {
             return mNrf24.isPVariant();
         }
 
-        /* Test whether a signal (carrier or otherwise) greater than or equal to -64dBm is present on the channel.
-         Valid only on nRF24L01P (+) hardware. On nRF24L01, use testCarrier().
-         Useful to check for interference on the current channel and channel hopping strategies.
-         bool goodSignal = radio.testRPD();*/
-        bool goodSignal(void) {
-            bool goodSignal = mNrf24.testRPD();
-            mNrf24.read(0,0);
-            return goodSignal;
-        }
-
         std::queue<packet_t> mBufCtrl;
 
         uint32_t mSendCnt;
@@ -268,16 +258,17 @@ class HmRadio {
                 if (len > 0) {
                     packet_t p;
                     p.ch = mRfChLst[mRxChIdx];
-                    p.len = len;
-                    mNrf24.read(p.packet, len);
+                    p.len = (len > MAX_RF_PAYLOAD_SIZE) ? MAX_RF_PAYLOAD_SIZE : len;
+                    p.rssi = mNrf24.testRPD() ? -64 : -75;
+                    mNrf24.read(p.packet, p.len);
                     if (p.packet[0] != 0x00) {
-                    mBufCtrl.push(p);
-                    if (p.packet[0] == (TX_REQ_INFO + ALL_FRAMES))  // response from get information command
-                            isLastPackage = (p.packet[9] > ALL_FRAMES); // > ALL_FRAMES indicates last packet received
-                    else if (p.packet[0] == ( 0x0f + ALL_FRAMES) )  // response from MI get information command
-                            isLastPackage = (p.packet[9] > 0x10);       // > 0x10 indicates last packet received
-                        else if ((p.packet[0] != 0x88) && (p.packet[0] != 0x92)) // ignore fragment number zero and MI status messages //#0 was p.packet[0] != 0x00 &&
-                        isLastPackage = true;                       // response from dev control command
+                        mBufCtrl.push(p);
+                        if (p.packet[0] == (TX_REQ_INFO + ALL_FRAMES))  // response from get information command
+                                isLastPackage = (p.packet[9] > ALL_FRAMES); // > ALL_FRAMES indicates last packet received
+                        else if (p.packet[0] == ( 0x0f + ALL_FRAMES) )  // response from MI get information command
+                                isLastPackage = (p.packet[9] > 0x10);       // > 0x10 indicates last packet received
+                            else if ((p.packet[0] != 0x88) && (p.packet[0] != 0x92)) // ignore fragment number zero and MI status messages //#0 was p.packet[0] != 0x00 &&
+                            isLastPackage = true;                       // response from dev control command
                     }
                 }
                     yield();
@@ -321,7 +312,7 @@ class HmRadio {
             if(mSerialDebug) {
                 DPRINT(DBG_INFO, F("TX "));
                 DBGPRINT(String(len));
-                DBGPRINT("B Ch");
+                DBGPRINT(" CH");
                 DBGPRINT(String(mRfChLst[mTxChIdx]));
                 DBGPRINT(F(" | "));
                 ah::dumpBuf(mTxBuf, len);
diff --git a/src/hms/hmsPayload.h b/src/hms/hmsPayload.h
index bfa75f1a..2ece3c45 100644
--- a/src/hms/hmsPayload.h
+++ b/src/hms/hmsPayload.h
@@ -272,8 +272,8 @@ class HmsPayload {
                     }*/ else {  // payload complete
                         DPRINT(DBG_INFO, F("procPyld: cmd:  0x"));
                         DBGPRINTLN(String(mPayload[iv->id].txCmd, HEX));
-                        DPRINT(DBG_INFO, F("procPyld: txid: 0x"));
-                        DBGPRINTLN(String(mPayload[iv->id].txId, HEX));
+                        //DPRINT(DBG_DEBUG, F("procPyld: txid: 0x"));
+                        //DBGPRINTLN(String(mPayload[iv->id].txId, HEX));
                         DPRINTLN(DBG_DEBUG, F("procPyld: max:  ") + String(mPayload[iv->id].maxPackId));
                         record_t<> *rec = iv->getRecordStruct(mPayload[iv->id].txCmd);  // choose the parser
                         mPayload[iv->id].complete = true;
@@ -300,7 +300,8 @@ class HmsPayload {
                         payloadLen -= 2;
 
                         if (mSerialDebug) {
-                            DPRINT(DBG_INFO, F("Payload ("));
+                            DPRINT_IVID(DBG_INFO, iv->id);
+                            DBGPRINT(F("Payload ("));
                             DBGPRINT(String(payloadLen));
                             DBGPRINT(F("): "));
                             ah::dumpBuf(payload, payloadLen);
@@ -382,8 +383,8 @@ class HmsPayload {
         }
 
         void reset(uint8_t id) {
-            DPRINT(DBG_INFO, "resetPayload: id: ");
-            DBGPRINTLN(String(id));
+            //DPRINT(DBG_INFO, "resetPayload: id: ");
+            //DBGPRINTLN(String(id));
             memset(&mPayload[id], 0, sizeof(hmsPayload_t));
             mPayload[id].txCmd       = 0;
             mPayload[id].gotFragment = false;
diff --git a/src/publisher/pubMqttIvData.h b/src/publisher/pubMqttIvData.h
index 9393733e..8446b4e8 100644
--- a/src/publisher/pubMqttIvData.h
+++ b/src/publisher/pubMqttIvData.h
@@ -28,7 +28,8 @@ class PubMqttIvData {
             mState        = IDLE;
             mZeroValues   = false;
 
-            memset(mIvLastRTRpub, 0, MAX_NUM_INVERTERS * 4);
+            memset(mIvLastRTRpub, 0, MAX_NUM_INVERTERS * sizeof(uint32_t));
+            memset(mIvLastPublish, 0, MAX_NUM_INVERTERS * sizeof(uint32_t));
             mRTRDataHasBeenSent = false;
 
             mTable[IDLE]        = &PubMqttIvData::stateIdle;
@@ -102,7 +103,7 @@ class PubMqttIvData {
             mPos = 0;
             if(found) {
                 record_t<> *rec = mIv->getRecordStruct(mCmd);
-                if(mIv->getLastTs(rec) != mIvLastRTRpub[mIv->id]) {
+                if(mIv->getLastTs(rec) != mIvLastPublish[mIv->id]) {
                     snprintf(mSubTopic, 32 + MAX_NAME_LENGTH, "%s/last_success", mIv->config->name);
                     snprintf(mVal, 40, "%d", mIv->getLastTs(rec));
                     mPublish(mSubTopic, mVal, true, QOS_0);
@@ -133,6 +134,7 @@ class PubMqttIvData {
                 pubData &= (lastTs != mIvLastRTRpub[mIv->id]);
 
             if (pubData) {
+                mIvLastPublish[mIv->id] = lastTs;
                 if(mPos < rec->length) {
                     bool retained = false;
                     if (mCmd == RealTimeRunData_Debug) {
@@ -239,6 +241,7 @@ class PubMqttIvData {
         Inverter<> *mIv, *mIvSend;
         uint8_t mPos;
         uint32_t mIvLastRTRpub[MAX_NUM_INVERTERS];
+        uint32_t mIvLastPublish[MAX_NUM_INVERTERS];
         bool mRTRDataHasBeenSent;
 
         char mSubTopic[32 + MAX_NAME_LENGTH + 1];
diff --git a/src/web/RestApi.h b/src/web/RestApi.h
index cb147a07..095b065e 100644
--- a/src/web/RestApi.h
+++ b/src/web/RestApi.h
@@ -242,10 +242,10 @@ class RestApi {
             getStatistics(obj.createNestedObject(F("statistics")));
 
         #if defined(ESP32)
-            obj[F("heap_total")]    = ESP.getHeapSize();
             obj[F("chip_revision")] = ESP.getChipRevision();
             obj[F("chip_model")]    = ESP.getChipModel();
             obj[F("chip_cores")]    = ESP.getChipCores();
+            obj[F("heap_total")]    = ESP.getHeapSize();
             //obj[F("core_version")]  = F("n/a");
             //obj[F("flash_size")]    = F("n/a");
             //obj[F("heap_frag")]     = F("n/a");
@@ -256,10 +256,10 @@ class RestApi {
             //obj[F("chip_revision")] = F("n/a");
             //obj[F("chip_model")]    = F("n/a");
             //obj[F("chip_cores")]    = F("n/a");
-            obj[F("core_version")]  = ESP.getCoreVersion();
-            obj[F("flash_size")]    = ESP.getFlashChipRealSize() / 1024; // in kb
             obj[F("heap_frag")]     = mHeapFrag;
             obj[F("max_free_blk")]  = mHeapFreeBlk;
+            obj[F("core_version")]  = ESP.getCoreVersion();
+            obj[F("flash_size")]    = ESP.getFlashChipRealSize() / 1024; // in kb
             obj[F("reboot_reason")] = ESP.getResetReason();
         #endif
             //obj[F("littlefs_total")] = LittleFS.totalBytes();
@@ -502,7 +502,6 @@ class RestApi {
             obj[F("isconnected")] = mRadio->isChipConnected();
             obj[F("DataRate")] = mRadio->getDataRate();
             obj[F("isPVariant")] = mRadio->isPVariant();
-            obj[F("goodSignal")] = mRadio->goodSignal();
             obj[F("en")]         = (bool) mConfig->nrf.enabled;
         }
 
diff --git a/src/web/html/save.html b/src/web/html/save.html
index 4c924c40..ce50c6ca 100644
--- a/src/web/html/save.html
+++ b/src/web/html/save.html
@@ -51,7 +51,9 @@
                     parseHtml(obj);
                 }
             }
-           intervalId =  window.setInterval("getAjax('/api/html/save', parse)", 2500);
+
+            intervalId =  window.setInterval("getAjax('/api/html/save', parse)", 2500);
+            getAjax("/api/generic", parseGeneric);
         </script>
     </body>
 </html>
diff --git a/src/web/html/setup.html b/src/web/html/setup.html
index 3f8a6c64..9df891c8 100644
--- a/src/web/html/setup.html
+++ b/src/web/html/setup.html
@@ -899,8 +899,8 @@
 
             function parse(root) {
                 if(null != root) {
-                    parseSys(root["system"]);
                     parseGeneric(root["generic"]);
+                    parseSys(root["system"]);
                     parseStaticIp(root["static_ip"]);
                     parseMqtt(root["mqtt"]);
                     parseNtp(root["ntp"]);
diff --git a/src/web/html/system.html b/src/web/html/system.html
index 295f0a55..d51c01cc 100644
--- a/src/web/html/system.html
+++ b/src/web/html/system.html
@@ -60,9 +60,8 @@
                 h.appendChild(r);
                 main.appendChild(h);
 
-                main.append(
-                    genTabRow("nrf24l01" + (obj["isPVariant"] ? "+ " : ""), (obj["isconnected"] ? "is connected " : "is not connected ")),
-                    genTabRow("NRF Signal: ", (obj["goodSignal"] ? "Strong signal > 64dBm" : "Weak signal < 64dBm"))
+                main.appendChild(
+                    genTabRow("nrf24l01" + (obj["isPVariant"] ? "+ " : ""), (obj["isconnected"] ? "is connected " : "is not connected "))
                 );
 
                 if(obj["isconnected"]) {
diff --git a/src/web/html/visualization.html b/src/web/html/visualization.html
index 0d72afac..03ff4083 100644
--- a/src/web/html/visualization.html
+++ b/src/web/html/visualization.html
@@ -177,8 +177,12 @@
                 else
                     ageInfo += "nothing received";
 
-                if((gen >= 2) && (rssi > -127))
-                    ageInfo += " (RSSI: " + rssi + "dBm)";
+                if(rssi > -127) {
+                    if(gen < 2)
+                        ageInfo += " (RSSI: " + ((rssi == -64) ? ">=" : "<") + " -64dBm)";
+                    else
+                        ageInfo += " (RSSI: " + rssi + "dBm)";
+                }
 
                 return ml("div", {class: "mb-5"}, [
                     ml("div", {class: "row p-1 ts-h mx-2"},