Packet #17786350 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: 17786350
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: MediumFast
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:MediumFast
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 MediumFast
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 1774602720.8910532
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: MediumFast
  • ✓ 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": "MediumFast", "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 📡 MediumFast 2026-03-27 09:12:00 UTC Current
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -1.371s
Before 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:11:59 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.568s
Before 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:00 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.447s
Before 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:00 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.350s
Before 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:00 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.013s
Before 		Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:00 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.058s
After 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:00 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.143s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.154s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.294s
After 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.410s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.514s
After 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.649s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.697s
After 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.720s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.853s
After 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.899s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.910s
After 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.019s
After 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.067s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.303s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.326s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.400s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.505s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.590s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.614s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.683s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.694s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.742s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.135s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.232s
After 		Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.350s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.383s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.406s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.488s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.903s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.969s
After 		Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.062s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.198s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:04 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.317s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:04 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.399s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:04 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.602s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:04 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.758s
After 		Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:04 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +4.080s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:04 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +4.894s
After 		Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:05 UTC View
45

Total Receptions

1

Unique Gateways