Packet #39472825 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: 39472825
Mesh Packet ID: 0x69a97fa9
Used for correlation across gateways
Timestamp: 2026-05-16 06:48:09 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: 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 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 1778914089.3155015
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": 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
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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 2026-05-16 06:48:09 UTC Current
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -1.174s
Before
Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:08 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.364s
Before
Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:08 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) -0.012s
Before
Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:09 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.142s
After
Unknown Unknown 0 94 📡 MediumFast 2026-05-16 06:48:09 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.187s
After
Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:09 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.344s
After
Unknown Unknown 0 94 📡 MediumFast 2026-05-16 06:48:09 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.679s
After
Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:09 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.813s
After
Unknown Unknown 0 94 📡 MediumFast 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.930s
After
Unknown Unknown 0 94 📡 MediumFast 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +0.943s
After
Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.082s
After
Unknown Unknown 0 94 📡 MediumFast 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.094s
After
Unknown Unknown 0 94 📡 ShortFast 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.132s
After
Unknown Unknown 0 94 📡 ShortFast 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.183s
After
Unknown Unknown 0 94 📡 ShortTurbo 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.241s
After
Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.287s
After
Unknown Unknown 0 94 📡 MediumFast 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.339s
After
Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.621s
After
Unknown Unknown 0 94 📡 ShortTurbo 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.645s
After
Unknown Unknown 0 94 📡 ShortTurbo 2026-05-16 06:48:10 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.715s
After
Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:11 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.750s
After
Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:11 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.825s
After
Unknown Unknown 0 94 📡 ShortTurbo 2026-05-16 06:48:11 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.890s
After
Unknown Unknown 0 94 📡 ShortFast 2026-05-16 06:48:11 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.976s
After
Unknown Unknown 0 94 📡 ShortFast 2026-05-16 06:48:11 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +1.991s
After
Unknown Unknown 0 94 📡 ShortFast 2026-05-16 06:48:11 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.079s
After
Unknown Unknown 0 94 📡 ShortTurbo 2026-05-16 06:48:11 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.152s
After
Unknown Unknown 0 94 📡 ShortTurbo 2026-05-16 06:48:11 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.181s
After
Unknown Unknown 0 94 📡 ShortTurbo 2026-05-16 06:48:11 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.434s
After
Unknown Unknown 0 94 📡 ShortTurbo 2026-05-16 06:48:11 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.709s
After
Unknown Unknown 0 94 📡 ShortFast 2026-05-16 06:48:12 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.738s
After
Unknown Unknown 0 94 📡 MediumFast 2026-05-16 06:48:12 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.779s
After
Unknown Unknown 0 94 📡 ShortTurbo 2026-05-16 06:48:12 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +2.913s
After
Unknown Unknown 0 94 📡 MediumFast 2026-05-16 06:48:12 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.012s
After
Unknown Unknown 0 94 📡 ShortFast 2026-05-16 06:48:12 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.255s
After
Unknown Unknown 0 94 📡 ShortTurbo 2026-05-16 06:48:12 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.428s
After
Unknown Unknown 0 94 📡 MediumFast 2026-05-16 06:48:12 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.555s
After
Unknown Unknown 0 94 📡 MediumFast 2026-05-16 06:48:12 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +3.634s
After
Unknown Unknown 0 94 📡 ShortFast 2026-05-16 06:48:12 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +4.003s
After
Unknown Unknown 0 94 📡 ShortFast 2026-05-16 06:48:13 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +4.539s
After
Unknown Unknown 0 94 📡 MediumFast 2026-05-16 06:48:13 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +5.018s
After
Unknown Unknown 0 94 📡 ShortFast 2026-05-16 06:48:14 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +5.045s
After
Unknown Unknown 0 94 📡 ShortTurbo 2026-05-16 06:48:14 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +5.930s
After
Unknown Unknown 0 94 📡 LongFast 2026-05-16 06:48:15 UTC View
Matane Centre CAN MQTT Link wiki.mt.gt (📡) +7.368s
After
Unknown Unknown 0 94 📡 ShortFast 2026-05-16 06:48:16 UTC View
45

Total Receptions

1

Unique Gateways