Packet #28234237 Success

POSITION_APP packet from Kala_CLM (Kala) to !ffffffff

23
Total Receptions
23
Unique Gateways
4
Hop Count
45
Payload Bytes
Packet Information
Database ID: 28234237
Mesh Packet ID: 0x65b5e6bf
Used for correlation across gateways
Timestamp: 2025-12-17 08:50:52 UTC
From Node: Kala_CLM (Kala)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Quixote_JS8_7 (QXT7)
Channel: MediumFast
RSSI: -18 dBm
SNR: 10.75 dBm
Hop Info: 4/5 hops
Start: 5, Limit: 1
Relay Node: None
Payload Data
Protocol: POSITION_APP
Size: 45 bytes
Decoded: Yes
Decoded Data:
Latitude:40.311194°
Longitude:-3.440640°
Altitude:-52 m
Satellites:6
Precision:15 bits
Raw Packet Analysis
Complete field breakdown and MQTT privacy/exposure analysis
Packet Structure
MQTT Packet Flow:
ServiceEnvelope (MQTT layer) → MeshPacket (Mesh layer) → Decoded Payload (Application data)
Total Size:45 bytes
Gateway:!435b08cc
Channel:MediumFast
Payload Type:POSITION_APP
Hop Count:4 / 5
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 2 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !435b08cc
Node ID format
channel_id MediumFast
packet MeshPacket (45 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3877556925
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 45 bytes size
hop_limit 1
Remaining hops allowed 		uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 4
Calculated: hop_start - hop_limit 		derived
rx_rssi -18.0 dBm
Signal strength at gateway 		int32
rx_snr 10.75 dB
Signal quality at gateway 		float
rx_time 1765961451
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack False
No ACK requested 		bool
priority Not set enum
delayed Not set enum
channel Not set uint32
pki_encrypted False
Standard encryption 		bool
next_hop Not set uint32
relay_node Not set uint32
tx_after Not set uint32
timestamp 1765961452.0863724
Unix timestamp 		uint32
MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Broadcast
Privacy Features:
  • ✓ Direct LoRa transmission (not via MQTT)
  • ✓ Custom channel: MediumFast
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~729.0m accuracy
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (4 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !435b08cc
Position Precision: 15 bits (~729.0m accuracy)
Position precision meters: 729.0
Signal Metrics: RSSI: -18.0 dBm
SNR: 10.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:45 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.3111936, "longitude": -3.44064, "altitude": -52, "sats_in_view": 6, "precision_bits": 15 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!435b08cc", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3877556925, "to": 4294967295, "id": 1706419903, "rx_time": 1765961451, "rx_snr": 10.75, "rx_rssi": -18, "hop_limit": 1, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 0, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00000718150000f3fd18ccffffffffffffffff0125e26e4269280258ee0278018001b89ca501980106b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403111936, "longitude_i": -34406400, "altitude": -52, "time": 1765961442, "location_source": "LOC_INTERNAL", "PDOP": 366, "ground_speed": 1, "ground_track": 2707000, "sats_in_view": 6, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (45 bytes)
0d00000718150000f3fd18ccffffffffffffffff0125e26e4269280258ee0278018001b89ca501980106b8010f
Hex Analysis:
Size:45 bytes
Format:Protobuf (Protocol Buffers)
Encoding:Binary with varint and length-delimited fields
This is the raw protobuf-encoded payload as received from MQTT. The structure follows the Meshtastic protobuf schema definitions.
All Receptions
All gateways that received this packet
Correlation: Using Mesh Packet ID
Reception Locations

Loading reception map...

Map shows gateway locations that received this packet. Hop counts are displayed if available.
Gateway Time Offset RSSI SNR Hops Relay Channel Timestamp Actions
Quixote_JS8_7 (QXT7) Primary 0.000s
Reference 		-18.0 dBm 10.75 dB 4 - MediumFast 2025-12-17 08:50:52 UTC Current
Venturada2🗼🌐☀️ (Vb2) -2.935s
Before 		-92.0 dBm -4.50 dB 1 fc Anu2 MediumFast 2025-12-17 08:50:49 UTC View
[samsepi0l] 📡🌐 (tlg0) -2.924s
Before 		-88.0 dBm -6.00 dB 1 fc 74fc , Anu2 MediumFast 2025-12-17 08:50:49 UTC View
GRN1-Base🗼🌐 🔋 (GRN1) -2.553s
Before 		-109.0 dBm -11.00 dB 1 fc Anu2 MediumFast 2025-12-17 08:50:49 UTC View
Meshtastic 1760 (1760) -2.276s
Before 		-130.0 dBm -9.00 dB 2 b0 Vbm , Vb2 MediumFast 2025-12-17 08:50:49 UTC View
Mec Rocket Meco (MRM) -1.959s
Before 		-110.0 dBm -10.75 dB 3 13 Sir MediumFast 2025-12-17 08:50:50 UTC View
Glitchs Azuqueca (GltA) -1.954s
Before 		-125.0 dBm -15.25 dB 3 13 Sir MediumFast 2025-12-17 08:50:50 UTC View
JAGO1_Cañaveral (JAGO) -1.879s
Before 		Unknown 10.75 dB 3 70 JAG2 MediumFast 2025-12-17 08:50:50 UTC View
Meshtastic 18a4 (18a4) -1.856s
Before 		Unknown Unknown 3 60 1760 MediumFast 2025-12-17 08:50:50 UTC View
🎄 SkG@Home 📡🌐 (SkGH) -1.707s
Before 		-94.0 dBm -7.50 dB 2 61 TO1 MediumFast 2025-12-17 08:50:50 UTC View
ETH Maverick (ET01) -1.462s
Before 		-106.0 dBm -5.25 dB 2 61 TO1 MediumFast 2025-12-17 08:50:50 UTC View
P3 iGate 🏠🌐 (P3N2) -0.913s
Before 		-36.0 dBm 11.00 dB 3 25 P3N1 MediumFast 2025-12-17 08:50:51 UTC View
Villarejo01 (VIL1) -0.699s
Before 		-34.0 dBm 10.25 dB 3 c6 d5c6 MediumFast 2025-12-17 08:50:51 UTC View
ETH Goose (ET03) -0.496s
Before 		-38.0 dBm 10.75 dB 3 41 ET01 MediumFast 2025-12-17 08:50:51 UTC View
Karabanchel_Baldur (KarB) -0.365s
Before 		-94.0 dBm 2.00 dB 5 2d SkyB MediumFast 2025-12-17 08:50:51 UTC View
Meshtastic b2b4📡🌐 (b2b4) -0.360s
Before 		-110.0 dBm -8.50 dB 5 2d SkyB MediumFast 2025-12-17 08:50:51 UTC View
PXT_Home (PXT1) -0.169s
Before 		-110.0 dBm -3.50 dB 4 48 mfms MediumFast 2025-12-17 08:50:51 UTC View
🤖 Nicolas Cage 🌐 (Cage) -0.070s
Before 		-70.0 dBm 10.50 dB 5 2d SkyB MediumFast 2025-12-17 08:50:52 UTC View
Quixote_JS8_5🗼🌐 (QXT5) -0.008s
Before 		-113.0 dBm -7.00 dB 4 - MediumFast 2025-12-17 08:50:52 UTC View
Ocumare Norte🗼🌐 (RRN) +0.176s
After 		-65.0 dBm 10.75 dB 5 98 TCLB MediumFast 2025-12-17 08:50:52 UTC View
Varela Bot 🏡🤖 (🤖) +0.468s
After 		-81.0 dBm 8.00 dB 5 1c 🏡 MediumFast 2025-12-17 08:50:52 UTC View
Meshtastic JT01 (JT01) +0.701s
After 		-110.0 dBm 1.50 dB 4 22 JT03 MediumFast 2025-12-17 08:50:52 UTC View
tizon (Sylv) +32.291s
After 		-117.0 dBm -7.50 dB 5 2d SkyB MediumFast 2025-12-17 08:51:24 UTC View
23

Total Receptions

23

Unique Gateways