Packet #17781285 Success

POSITION_APP packet from Mechanicus Cadia (M3) to !ffffffff

45
Total Receptions
1
Unique Gateways
0
Hop Count
28
Payload Bytes
Packet Information
Database ID: 17781285
Mesh Packet ID: 0x3bb1f9d9
Used for correlation across gateways
Timestamp: 2026-03-27 09:02:24 UTC
From Node: Mechanicus Cadia (M3)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Mechanicus Cadia (M3)
Channel: ShortFast
RSSI: Unknown
SNR: Unknown
Hop Info: 0/7 hops
Start: 7, Limit: 7
Relay Node: 9c M3
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: 28 bytes
Decoded: Yes
Decoded Data:
Latitude:49.922867°
Longitude:-97.149747°
Altitude:230 m
Precision:18 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:28 bytes
Gateway:!4359649c
Channel:ShortFast
Payload Type:POSITION_APP
Hop Count:Unknown / 7
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortFast
+ 2 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !4359649c
Node ID format
channel_id ShortFast
packet MeshPacket (28 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1129931932
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 28 bytes size
hop_limit 7
Remaining hops allowed 		uint32
hop_start 7
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 1774602143
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack False
No ACK requested 		bool
priority 10
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 156
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1774602144.8268185
Unix timestamp 		uint32
MQTT Privacy & Exposure Analysis

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

Exposure Level: Broadcast
Privacy Features:
  • ✓ Direct LoRa transmission (not via MQTT)
  • ✓ Custom channel: ShortFast
  • ✓ Gateway node ID tracked
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Full GPS precision shared
MQTT-Specific Fields
Gateway ID: !4359649c
Position Precision: 18 bits (~91.0m accuracy)
Position precision meters: 91.0
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:28 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 49.9228672, "longitude": -97.1497472, "altitude": 230, "sats_in_view": null, "precision_bits": 18 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!4359649c", "channel_id": "ShortFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1129931932, "to": 4294967295, "id": 1001519577, "rx_time": 1774602143, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 7, "hop_start": 7, "via_mqtt": false, "want_ack": false, "priority": 10, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 156, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00a0c11d15002018c618e601259f47c66928017800800100b80112", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 499228672, "longitude_i": -971497472, "altitude": 230, "time": 1774602143, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 18, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (28 bytes)
0d00a0c11d15002018c618e601259f47c66928017800800100b80112
Hex Analysis:
Size:28 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
Mechanicus Cadia (M3) Primary 0.000s
Reference 		Unknown Unknown 0 9c M3 ShortFast 2026-03-27 09:02:24 UTC Current
Mechanicus Cadia (M3) -0.586s
Before 		Unknown Unknown 0 9c M3 LongFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) -0.552s
Before 		Unknown Unknown 0 9c M3 LongFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) -0.533s
Before 		Unknown Unknown 0 9c M3 LongFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) -0.510s
Before 		Unknown Unknown 0 9c M3 LongFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) -0.488s
Before 		Unknown Unknown 0 9c M3 LongFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) -0.441s
Before 		Unknown Unknown 0 9c M3 LongFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) -0.416s
Before 		Unknown Unknown 0 9c M3 LongFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) -0.401s
Before 		Unknown Unknown 0 9c M3 LongFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) -0.380s
Before 		Unknown Unknown 0 9c M3 LongFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) -0.364s
Before 		Unknown Unknown 0 9c M3 LongFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) -0.347s
Before 		Unknown Unknown 0 9c M3 LongFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) -0.327s
Before 		Unknown Unknown 0 9c M3 MediumFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) -0.311s
Before 		Unknown Unknown 0 9c M3 MediumFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) -0.276s
Before 		Unknown Unknown 0 9c M3 MediumFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) -0.255s
Before 		Unknown Unknown 0 9c M3 MediumFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) -0.225s
Before 		Unknown Unknown 0 9c M3 MediumFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) -0.205s
Before 		Unknown Unknown 0 9c M3 MediumFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) -0.180s
Before 		Unknown Unknown 0 9c M3 MediumFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) -0.156s
Before 		Unknown Unknown 0 9c M3 MediumFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) -0.114s
Before 		Unknown Unknown 0 9c M3 MediumFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) -0.092s
Before 		Unknown Unknown 0 9c M3 MediumFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) -0.037s
Before 		Unknown Unknown 0 9c M3 MediumFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) +0.047s
After 		Unknown Unknown 0 9c M3 ShortFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) +0.079s
After 		Unknown Unknown 0 9c M3 ShortFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) +0.127s
After 		Unknown Unknown 0 9c M3 ShortFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) +0.144s
After 		Unknown Unknown 0 9c M3 ShortFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) +0.162s
After 		Unknown Unknown 0 9c M3 ShortFast 2026-03-27 09:02:24 UTC View
Mechanicus Cadia (M3) +0.176s
After 		Unknown Unknown 0 9c M3 ShortFast 2026-03-27 09:02:25 UTC View
Mechanicus Cadia (M3) +0.195s
After 		Unknown Unknown 0 9c M3 ShortFast 2026-03-27 09:02:25 UTC View
Mechanicus Cadia (M3) +0.210s
After 		Unknown Unknown 0 9c M3 ShortFast 2026-03-27 09:02:25 UTC View
Mechanicus Cadia (M3) +0.223s
After 		Unknown Unknown 0 9c M3 ShortFast 2026-03-27 09:02:25 UTC View
Mechanicus Cadia (M3) +0.238s
After 		Unknown Unknown 0 9c M3 ShortFast 2026-03-27 09:02:25 UTC View
Mechanicus Cadia (M3) +0.250s
After 		Unknown Unknown 0 9c M3 ShortTurbo 2026-03-27 09:02:25 UTC View
Mechanicus Cadia (M3) +0.264s
After 		Unknown Unknown 0 9c M3 ShortTurbo 2026-03-27 09:02:25 UTC View
Mechanicus Cadia (M3) +0.282s
After 		Unknown Unknown 0 9c M3 ShortTurbo 2026-03-27 09:02:25 UTC View
Mechanicus Cadia (M3) +0.299s
After 		Unknown Unknown 0 9c M3 ShortTurbo 2026-03-27 09:02:25 UTC View
Mechanicus Cadia (M3) +0.312s
After 		Unknown Unknown 0 9c M3 ShortTurbo 2026-03-27 09:02:25 UTC View
Mechanicus Cadia (M3) +0.327s
After 		Unknown Unknown 0 9c M3 ShortTurbo 2026-03-27 09:02:25 UTC View
Mechanicus Cadia (M3) +0.349s
After 		Unknown Unknown 0 9c M3 ShortTurbo 2026-03-27 09:02:25 UTC View
Mechanicus Cadia (M3) +0.363s
After 		Unknown Unknown 0 9c M3 ShortTurbo 2026-03-27 09:02:25 UTC View
Mechanicus Cadia (M3) +0.385s
After 		Unknown Unknown 0 9c M3 ShortTurbo 2026-03-27 09:02:25 UTC View
Mechanicus Cadia (M3) +0.436s
After 		Unknown Unknown 0 9c M3 ShortTurbo 2026-03-27 09:02:25 UTC View
Mechanicus Cadia (M3) +0.592s
After 		Unknown Unknown 0 9c M3 ShortTurbo 2026-03-27 09:02:25 UTC View
Mechanicus Cadia (M3) +0.612s
After 		Unknown Unknown 0 9c M3 LongFast 2026-03-27 09:02:25 UTC View
45

Total Receptions

1

Unique Gateways