Packet #17786310 Success

POSITION_APP packet from Matane Centre CAN MQTT Link wiki.mt.gt (📡) to kwarc.org c908 (KWC)

45
Total Receptions
1
Unique Gateways
0
Hop Count
27
Payload Bytes
Packet Information
Database ID: 17786310
Mesh Packet ID: 0x47a063e2
Used for correlation across gateways
Timestamp: 2026-03-27 09:12:00 UTC
From Node: Matane Centre CAN MQTT Link wiki.mt.gt (📡)
To Node: kwarc.org c908 (KWC)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Matane Centre CAN MQTT Link wiki.mt.gt (📡)
Channel: LongFast
RSSI: Unknown
SNR: Unknown
Hop Info: 0/2 hops
Start: 2, Limit: 2
Relay Node: 94 📡
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions
Payload Data
Protocol: POSITION_APP
Size: 27 bytes
Decoded: Yes
Decoded Data:
Latitude:48.837427°
Longitude:-67.554509°
Altitude:6 m
Precision:13 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:27 bytes
Gateway:!a0cb1094
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:Unknown / 2
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 3 more...
Exposure Risks:
âš  Default channel - no encryption
âš  Packet visible to MQTT subscribers
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !a0cb1094
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (27 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2697662612
Source node ID 		uint32
to 3812346120
Target node ID 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 27 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 2
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi Not set int32
rx_snr Not set float
rx_time 1774602675
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack False
No ACK requested 		bool
priority 70
Packet priority level 		enum
delayed Not set enum
channel Not set uint32
pki_encrypted False
Standard encryption 		bool
next_hop Not set uint32
relay_node 148
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1774602720.322577
Unix timestamp 		uint32
MQTT Privacy & Exposure Analysis

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

Exposure Level: Direct Message
Privacy Features:
  • ✓ Direct LoRa transmission (not via MQTT)
  • ✓ Targeted to specific node
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~2900.0m accuracy
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • âš  Default channel - no encryption
  • âš  Packet visible to MQTT subscribers
MQTT-Specific Fields
Gateway ID: !a0cb1094
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Zero Hop Policy: Enabled
Direct gateway connection
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:27 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 48.8374272, "longitude": -67.5545088, "altitude": 6, "sats_in_view": null, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!a0cb1094", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2697662612, "to": 3812346120, "id": 1201693666, "rx_time": 1774602675, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 2, "hop_start": 2, "via_mqtt": false, "want_ack": false, "priority": 70, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 148, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00001c1d150000bcd7180625b349c66928017800800100b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 488374272, "longitude_i": -675545088, "altitude": 6, "time": 1774602675, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (27 bytes)
0d00001c1d150000bcd7180625b349c66928017800800100b8010d
Hex Analysis:
Size:27 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
Matane Centre CAN MQTT Link wiki.mt.gt (📡) Primary 0.000s
Reference 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:00 UTC Current
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.803s
Before 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:11:59 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.122s
After 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:00 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.218s
After 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:00 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.556s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:00 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.568s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:00 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.627s
After 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:00 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.711s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.723s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.862s
After 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.978s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.083s
After 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.218s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.265s
After 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.288s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.421s
After 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.467s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.479s
After 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.588s
After 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.636s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.872s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.895s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.969s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.074s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.159s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.183s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.252s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.263s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.311s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.704s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.800s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.918s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.951s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.975s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.056s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.472s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.537s
After 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.630s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.767s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:04 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.885s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:04 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.967s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:04 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +4.171s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:04 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +4.327s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:04 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +4.649s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:04 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +5.462s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:05 UTC View
45

Total Receptions

1

Unique Gateways