diff --git a/gui/preload-main.js b/gui/preload-main.js
index ab64178c..1bc782bb 100644
--- a/gui/preload-main.js
+++ b/gui/preload-main.js
@@ -1589,7 +1589,30 @@ ipcRenderer.on('action-update-tnc-state', (event, arg) => {
         var arq_bytes_per_minute_compressed = Math.round(arg.arq_bytes_per_minute * arg.arq_compression_factor);
     }
     document.getElementById("bytes_per_min_compressed").innerHTML = arq_bytes_per_minute_compressed;
-    
+
+    // SET TIME LEFT UNTIL FINIHED
+    if (typeof(arg.arq_seconds_until_finish) == 'undefined') {
+        var time_left = 0;
+    } else {
+        var arq_seconds_until_finish = arg.arq_seconds_until_finish
+        var hours = Math.floor(arq_seconds_until_finish / 3600);
+        var minutes = Math.floor((arq_seconds_until_finish % 3600) / 60 );
+        var seconds = arq_seconds_until_finish % 60;
+
+        if(hours < 0) {
+            hours = 0;
+        }
+        if(minutes < 0) {
+            minutes = 0;
+        }
+        if(seconds < 0) {
+            seconds = 0;
+        }
+        var time_left = "time left: ~ "+ minutes + "min" + " " + seconds + "s";
+    }
+    document.getElementById("transmission_timeleft").innerHTML = time_left;
+
+
     
     // SET SPEED LEVEL
 
@@ -1608,6 +1631,7 @@ ipcRenderer.on('action-update-tnc-state', (event, arg) => {
     if(arg.speed_level >= 4) {
         document.getElementById("speed_level").className = "bi bi-reception-4";
     }
+
     
     
     
diff --git a/gui/sock.js b/gui/sock.js
index 78018b93..0a928653 100644
--- a/gui/sock.js
+++ b/gui/sock.js
@@ -221,6 +221,7 @@ client.on('data', function(socketdata) {
                     arq_rx_n_current_arq_frame: data['arq_rx_n_current_arq_frame'],
                     arq_n_arq_frames_per_data_frame: data['arq_n_arq_frames_per_data_frame'],
                     arq_bytes_per_minute: data['arq_bytes_per_minute'],
+                    arq_seconds_until_finish: data['arq_seconds_until_finish'],
                     arq_compression_factor: data['arq_compression_factor'],
                     total_bytes: data['total_bytes'],
                     arq_transmission_percent: data['arq_transmission_percent'],
diff --git a/gui/src/index.html b/gui/src/index.html
index c60467ae..533993b4 100644
--- a/gui/src/index.html
+++ b/gui/src/index.html
@@ -1100,6 +1100,7 @@
 				<div class="progress" style="height: 30px;">
 					<div class="progress-bar progress-bar-striped bg-primary" id="transmission_progress" role="progressbar" style="width: 0%" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100"></div>
 					<!--<p class="justify-content-center d-flex position-absolute w-100">PROGRESS</p>-->
+					<p class="justify-content-center mt-2 d-flex position-absolute w-100" id="transmission_timeleft">---</p>
 				</div>
 			</div>
 		</div>
diff --git a/tnc/data_handler.py b/tnc/data_handler.py
index 831b5db1..373a825b 100644
--- a/tnc/data_handler.py
+++ b/tnc/data_handler.py
@@ -685,6 +685,11 @@ class DATA:
                 # static.RX_FRAME_BUFFER --> existing data
                 # temp_burst_buffer --> new data
                 # search_area --> area where we want to search
+
+
+                #data_mode = self.mode_list[self.speed_level]
+                #payload_per_frame = modem.get_bytes_per_frame(data_mode) - 2
+                #search_area = payload_per_frame - 3  # (3 bytes arq frame header)
                 search_area = 510 - 3  # (3 bytes arq frame header)
 
                 search_position = len(static.RX_FRAME_BUFFER) - search_area
@@ -739,7 +744,7 @@ class DATA:
                 self.set_listening_modes(False, True, self.mode_list[self.speed_level])
 
                 # Create and send ACK frame
-                self.log.info("[TNC] ARQ | RX | SENDING ACK")
+                self.log.info("[TNC] ARQ | RX | SENDING ACK", finished=static.ARQ_SECONDS_UNTIL_FINISH, bytesperminute=static.ARQ_BYTES_PER_MINUTE)
                 self.send_burst_ack_frame(snr)
 
                 # Reset n retries per burst counter
@@ -760,6 +765,7 @@ class DATA:
                     bytesperminute=static.ARQ_BYTES_PER_MINUTE,
                     mycallsign=str(self.mycallsign, 'UTF-8'),
                     dxcallsign=str(self.dxcallsign, 'UTF-8'),
+                    finished=static.ARQ_SECONDS_UNTIL_FINISH,
                 )
 
         elif rx_n_frame_of_burst == rx_n_frames_per_burst - 1:
@@ -840,8 +846,10 @@ class DATA:
 
                 # transmittion duration
                 duration = time.time() - self.rx_start_of_transmission
-                self.log.info("[TNC] ARQ | RX | DATA FRAME SUCCESSFULLY RECEIVED", nacks=self.frame_nack_counter,bytesperminute=static.ARQ_BYTES_PER_MINUTE, total_bytes=static.TOTAL_BYTES, duration=duration
-)
+                self.calculate_transfer_rate_rx(
+                    self.rx_start_of_transmission, len(static.RX_FRAME_BUFFER)
+                )
+                self.log.info("[TNC] ARQ | RX | DATA FRAME SUCCESSFULLY RECEIVED", nacks=self.frame_nack_counter,bytesperminute=static.ARQ_BYTES_PER_MINUTE, total_bytes=static.TOTAL_BYTES, duration=duration)
 
                 # Decompress the data frame
                 data_frame_decompressed = lzma.decompress(data_frame)
@@ -973,11 +981,12 @@ class DATA:
                     overflows=static.BUFFER_OVERFLOW_COUNTER,
                     nacks=self.frame_nack_counter,
                     duration=duration,
-                    bytesperminute=static.ARQ_BYTES_PER_MINUTE
+                    bytesperminute=static.ARQ_BYTES_PER_MINUTE,
+                    data=data_frame,
 
                 )
 
-                self.log.info("[TNC] ARQ | RX | Sending NACK")
+                self.log.info("[TNC] ARQ | RX | Sending NACK", finished=static.ARQ_SECONDS_UNTIL_FINISH, bytesperminute=static.ARQ_BYTES_PER_MINUTE)
                 self.send_burst_nack_frame(snr)
 
             # Update arq_session timestamp
@@ -1018,6 +1027,7 @@ class DATA:
             uuid=self.transmission_uuid,
             percent=static.ARQ_TRANSMISSION_PERCENT,
             bytesperminute=static.ARQ_BYTES_PER_MINUTE,
+            finished=static.ARQ_SECONDS_UNTIL_FINISH,
             mycallsign=str(self.mycallsign, 'UTF-8'),
             dxcallsign=str(self.dxcallsign, 'UTF-8'),
         )
@@ -1212,6 +1222,7 @@ class DATA:
                 uuid=self.transmission_uuid,
                 percent=static.ARQ_TRANSMISSION_PERCENT,
                 bytesperminute=static.ARQ_BYTES_PER_MINUTE,
+                finished=static.ARQ_SECONDS_UNTIL_FINISH,
                 irs_snr=self.burst_ack_snr,
                 mycallsign=str(self.mycallsign, 'UTF-8'),
                 dxcallsign=str(self.dxcallsign, 'UTF-8'),
@@ -1237,6 +1248,7 @@ class DATA:
                 uuid=self.transmission_uuid,
                 percent=static.ARQ_TRANSMISSION_PERCENT,
                 bytesperminute=static.ARQ_BYTES_PER_MINUTE,
+                finished=static.ARQ_SECONDS_UNTIL_FINISH,
                 mycallsign=str(self.mycallsign, 'UTF-8'),
                 dxcallsign=str(self.dxcallsign, 'UTF-8'),
             )
@@ -1469,7 +1481,7 @@ class DATA:
             )
 
             # wait while timeout not reached and our busy state is busy
-            channel_busy_timeout = time.time() + 30
+            channel_busy_timeout = time.time() + 15
             while static.CHANNEL_BUSY and time.time() < channel_busy_timeout:
                 threading.Event().wait(0.01)
 
@@ -1963,7 +1975,7 @@ class DATA:
                     )
 
                     # wait while timeout not reached and our busy state is busy
-                    channel_busy_timeout = time.time() + 30
+                    channel_busy_timeout = time.time() + 15
                     while static.CHANNEL_BUSY and time.time() < channel_busy_timeout:
                         threading.Event().wait(0.01)
 
@@ -2772,10 +2784,12 @@ class DATA:
                 static.ARQ_BYTES_PER_MINUTE = int(
                     receivedbytes / (transmissiontime / 60)
                 )
+                static.ARQ_SECONDS_UNTIL_FINISH = int(((static.TOTAL_BYTES - receivedbytes) / (static.ARQ_BYTES_PER_MINUTE * static.ARQ_COMPRESSION_FACTOR)) * 60) -20 # offset because of frame ack/nack
 
             else:
                 static.ARQ_BITS_PER_SECOND = 0
                 static.ARQ_BYTES_PER_MINUTE = 0
+                static.ARQ_SECONDS_UNTIL_FINISH = 0
         except Exception as err:
             self.log.error(f"[TNC] calculate_transfer_rate_rx: Exception: {err}")
             static.ARQ_TRANSMISSION_PERCENT = 0.0
@@ -2799,6 +2813,7 @@ class DATA:
         static.ARQ_BITS_PER_SECOND = 0
         static.ARQ_TRANSMISSION_PERCENT = 0
         static.TOTAL_BYTES = 0
+        static.ARQ_SECONDS_UNTIL_FINISH = 0
 
     def calculate_transfer_rate_tx(
             self, tx_start_of_transmission: float, sentbytes: int, tx_buffer_length: int
@@ -2825,10 +2840,11 @@ class DATA:
             if sentbytes > 0:
                 static.ARQ_BITS_PER_SECOND = int((sentbytes * 8) / transmissiontime)
                 static.ARQ_BYTES_PER_MINUTE = int(sentbytes / (transmissiontime / 60))
-
+                static.ARQ_SECONDS_UNTIL_FINISH = int(((tx_buffer_length - sentbytes) / (static.ARQ_BYTES_PER_MINUTE* static.ARQ_COMPRESSION_FACTOR)) * 60 )
             else:
                 static.ARQ_BITS_PER_SECOND = 0
                 static.ARQ_BYTES_PER_MINUTE = 0
+                static.ARQ_SECONDS_UNTIL_FINISH = 0
 
         except Exception as err:
             self.log.error(f"[TNC] calculate_transfer_rate_tx: Exception: {err}")
diff --git a/tnc/sock.py b/tnc/sock.py
index 4cc0099b..69dad8fd 100644
--- a/tnc/sock.py
+++ b/tnc/sock.py
@@ -625,6 +625,7 @@ def send_tnc_state():
         "rx_msg_buffer_length": str(len(static.RX_MSG_BUFFER)),
         "arq_bytes_per_minute": str(static.ARQ_BYTES_PER_MINUTE),
         "arq_bytes_per_minute_burst": str(static.ARQ_BYTES_PER_MINUTE_BURST),
+        "arq_seconds_until_finish": str(static.ARQ_SECONDS_UNTIL_FINISH),
         "arq_compression_factor": str(static.ARQ_COMPRESSION_FACTOR),
         "arq_transmission_percent": str(static.ARQ_TRANSMISSION_PERCENT),
         "total_bytes": str(static.TOTAL_BYTES),
diff --git a/tnc/static.py b/tnc/static.py
index c94dd163..e1105937 100644
--- a/tnc/static.py
+++ b/tnc/static.py
@@ -101,6 +101,7 @@ ARQ_BITS_PER_SECOND_BURST: int = 0
 ARQ_BITS_PER_SECOND: int = 0
 ARQ_COMPRESSION_FACTOR: int = 0
 ARQ_TRANSMISSION_PERCENT: int = 0
+ARQ_SECONDS_UNTIL_FINISH: int = 0
 ARQ_SPEED_LEVEL: int = 0
 TOTAL_BYTES: int = 0
 # set save to folder state for allowing downloading files to local file system