Packet #39472981 Success

POSITION_APP packet from Matane Centre CAN MQTT Link wiki.mt.gt (📡) to not a toaster (daw)

45
Total Receptions
1
Unique Gateways
0
Hop Count
27
Payload Bytes
Packet Information
Database ID: 39472981
Mesh Packet ID: 0x69a97fa9
Used for correlation across gateways
Timestamp: 2026-05-16 06:48:11 UTC
From Node: Matane Centre CAN MQTT Link wiki.mt.gt (📡)
To Node: not a toaster (daw)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Matane Centre CAN MQTT Link wiki.mt.gt (📡)
Channel: ShortFast
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:ShortFast
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
+ 4 more...
Exposure Risks:
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 ShortFast
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 2571147703
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 1778914082
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 1778914091.2910676
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
  • ✓ Custom channel: ShortFast
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~2900.0m accuracy
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • 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": "ShortFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2697662612, "to": 2571147703, "id": 1772715945, "rx_time": 1778914082, "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": "0d00001c1d150000bcd71806252213086a28017800800100b8010d", "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": 1778914082, "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)
0d00001c1d150000bcd71806252213086a28017800800100b8010d
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 📡 ShortFast 2026-05-16 06:48:11 UTC Current
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -3.150s
Before 		Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:08 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -2.339s
Before 		Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:08 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -1.988s
Before 		Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:09 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -1.976s
Before 		Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:09 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -1.833s
Before 		Unknown Unknown 0 94 📡 MediumFast 2026-05-16 06:48:09 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -1.789s
Before 		Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:09 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -1.632s
Before 		Unknown Unknown 0 94 📡 MediumFast 2026-05-16 06:48:09 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -1.297s
Before 		Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:09 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -1.163s
Before 		Unknown Unknown 0 94 📡 MediumFast 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -1.045s
Before 		Unknown Unknown 0 94 📡 MediumFast 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -1.032s
Before 		Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.893s
Before 		Unknown Unknown 0 94 📡 MediumFast 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.882s
Before 		Unknown Unknown 0 94 📡 ShortFast 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.843s
Before 		Unknown Unknown 0 94 📡 ShortFast 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.793s
Before 		Unknown Unknown 0 94 📡 ShortTurbo 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.735s
Before 		Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.688s
Before 		Unknown Unknown 0 94 📡 MediumFast 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.637s
Before 		Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.354s
Before 		Unknown Unknown 0 94 📡 ShortTurbo 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.331s
Before 		Unknown Unknown 0 94 📡 ShortTurbo 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.261s
Before 		Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:11 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.226s
Before 		Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:11 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.151s
Before 		Unknown Unknown 0 94 📡 ShortTurbo 2026-05-16 06:48:11 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.086s
Before 		Unknown Unknown 0 94 📡 ShortFast 2026-05-16 06:48:11 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.015s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-05-16 06:48:11 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.104s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-05-16 06:48:11 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.177s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-05-16 06:48:11 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.206s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-05-16 06:48:11 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.458s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-05-16 06:48:11 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.734s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-05-16 06:48:12 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.762s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-05-16 06:48:12 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.804s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-05-16 06:48:12 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.937s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-05-16 06:48:12 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.037s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-05-16 06:48:12 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.279s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-05-16 06:48:12 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.452s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-05-16 06:48:12 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.580s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-05-16 06:48:12 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.659s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-05-16 06:48:12 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.028s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-05-16 06:48:13 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.563s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-05-16 06:48:13 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.043s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-05-16 06:48:14 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.069s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-05-16 06:48:14 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.954s
After 		Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:15 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +5.392s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-05-16 06:48:16 UTC View
45

Total Receptions

1

Unique Gateways