Packet #17786424 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: 17786424
Mesh Packet ID: 0x47a063e2
Used for correlation across gateways
Timestamp: 2026-03-27 09:12:01 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 1774602721.80147
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
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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 09:12:01 UTC Current
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -2.282s
Before
Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:11:59 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -1.479s
Before
Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:00 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -1.357s
Before
Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:00 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -1.261s
Before
Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:00 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.923s
Before
Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:00 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.910s
Before
Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:00 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.852s
Before
Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:00 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.768s
Before
Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.756s
Before
Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.617s
Before
Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.501s
Before
Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.396s
Before
Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.261s
Before
Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.214s
Before
Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.191s
Before
Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.058s
Before
Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.011s
Before
Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.109s
After
Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.157s
After
Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:01 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.393s
After
Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.416s
After
Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.490s
After
Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.595s
After
Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.680s
After
Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.704s
After
Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.773s
After
Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.784s
After
Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.832s
After
Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:02 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.225s
After
Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.321s
After
Unknown Unknown 0 94 📡 MediumFast 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.440s
After
Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.472s
After
Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.496s
After
Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.577s
After
Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.993s
After
Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.058s
After
Unknown Unknown 0 94 📡 LongFast 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.151s
After
Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:03 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.288s
After
Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:04 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.406s
After
Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:04 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.488s
After
Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:04 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.692s
After
Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:04 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.848s
After
Unknown Unknown 0 94 📡 ShortFast 2026-03-27 09:12:04 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.170s
After
Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:04 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.983s
After
Unknown Unknown 0 94 📡 ShortTurbo 2026-03-27 09:12:05 UTC View
45

Total Receptions

1

Unique Gateways