Packet #39833521 Success

POSITION_APP packet from Lambton Bridge1 - wiki.mt.gt (c578) to !ffffffff

45
Total Receptions
1
Unique Gateways
0
Hop Count
36
Payload Bytes
Packet Information
Database ID: 39833521
Mesh Packet ID: 0xdaf649b3
Used for correlation across gateways
Timestamp: 2026-05-17 03:39:18 UTC
From Node: Lambton Bridge1 - wiki.mt.gt (c578)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Lambton Bridge1 - wiki.mt.gt (c578)
Channel: ShortTurbo
RSSI: Unknown
SNR: Unknown
Hop Info: 0/3 hops
Start: 3, Limit: 3
Relay Node: 78 c578
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: 36 bytes
Decoded: Yes
Decoded Data:
Latitude:42.965402°
Longitude:-82.129715°
Altitude:86 m
Satellites:6
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:36 bytes
Gateway:!c4f7c578
Channel:ShortTurbo
Payload Type:POSITION_APP
Hop Count:Unknown / 3
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortTurbo
+ 3 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !c4f7c578
Node ID format
channel_id ShortTurbo
packet MeshPacket (36 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3304572280
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 36 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 3
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 1778989157
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 120
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1778989158.0710552
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: ShortTurbo
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~2900.0m accuracy
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
MQTT-Specific Fields
Gateway ID: !c4f7c578
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:36 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 42.9654016, "longitude": -82.1297152, "altitude": 86, "sats_in_view": 6, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!c4f7c578", "channel_id": "ShortTurbo", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3304572280, "to": 4294967295, "id": 3673573811, "rx_time": 1778989157, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 3, "hop_start": 3, "via_mqtt": false, "want_ack": false, "priority": 10, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 120, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00009c191500000ccf1856256538096a280258dd0178018001d8f4f40a980106b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 429654016, "longitude_i": -821297152, "altitude": 86, "time": 1778989157, "location_source": "LOC_INTERNAL", "PDOP": 221, "ground_speed": 1, "ground_track": 22887000, "sats_in_view": 6, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (36 bytes)
0d00009c191500000ccf1856256538096a280258dd0178018001d8f4f40a980106b8010d
Hex Analysis:
Size:36 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
Lambton Bridge1 - wiki.mt.gt (c578) Primary 0.000s
Reference 		Unknown Unknown 0 78 c578 ShortTurbo 2026-05-17 03:39:18 UTC Current
Lambton Bridge1 - wiki.mt.gt (c578) -0.487s
Before 		Unknown Unknown 0 78 c578 LongFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.464s
Before 		Unknown Unknown 0 78 c578 LongFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.452s
Before 		Unknown Unknown 0 78 c578 LongFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.435s
Before 		Unknown Unknown 0 78 c578 LongFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.425s
Before 		Unknown Unknown 0 78 c578 LongFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.407s
Before 		Unknown Unknown 0 78 c578 LongFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.390s
Before 		Unknown Unknown 0 78 c578 LongFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.373s
Before 		Unknown Unknown 0 78 c578 LongFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.364s
Before 		Unknown Unknown 0 78 c578 LongFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.353s
Before 		Unknown Unknown 0 78 c578 LongFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.340s
Before 		Unknown Unknown 0 78 c578 LongFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.328s
Before 		Unknown Unknown 0 78 c578 MediumFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.316s
Before 		Unknown Unknown 0 78 c578 MediumFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.303s
Before 		Unknown Unknown 0 78 c578 MediumFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.291s
Before 		Unknown Unknown 0 78 c578 MediumFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.279s
Before 		Unknown Unknown 0 78 c578 MediumFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.267s
Before 		Unknown Unknown 0 78 c578 MediumFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.243s
Before 		Unknown Unknown 0 78 c578 MediumFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.232s
Before 		Unknown Unknown 0 78 c578 MediumFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.214s
Before 		Unknown Unknown 0 78 c578 MediumFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.195s
Before 		Unknown Unknown 0 78 c578 MediumFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.177s
Before 		Unknown Unknown 0 78 c578 MediumFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.166s
Before 		Unknown Unknown 0 78 c578 ShortFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.154s
Before 		Unknown Unknown 0 78 c578 ShortFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.141s
Before 		Unknown Unknown 0 78 c578 ShortFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.129s
Before 		Unknown Unknown 0 78 c578 ShortFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.111s
Before 		Unknown Unknown 0 78 c578 ShortFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.099s
Before 		Unknown Unknown 0 78 c578 ShortFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.085s
Before 		Unknown Unknown 0 78 c578 ShortFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.070s
Before 		Unknown Unknown 0 78 c578 ShortFast 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.057s
Before 		Unknown Unknown 0 78 c578 ShortFast 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.045s
Before 		Unknown Unknown 0 78 c578 ShortFast 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.033s
Before 		Unknown Unknown 0 78 c578 ShortFast 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.022s
Before 		Unknown Unknown 0 78 c578 ShortTurbo 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.011s
Before 		Unknown Unknown 0 78 c578 ShortTurbo 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) +0.011s
After 		Unknown Unknown 0 78 c578 ShortTurbo 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) +0.022s
After 		Unknown Unknown 0 78 c578 ShortTurbo 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) +0.033s
After 		Unknown Unknown 0 78 c578 ShortTurbo 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) +0.045s
After 		Unknown Unknown 0 78 c578 ShortTurbo 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) +0.057s
After 		Unknown Unknown 0 78 c578 ShortTurbo 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) +0.070s
After 		Unknown Unknown 0 78 c578 ShortTurbo 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) +0.082s
After 		Unknown Unknown 0 78 c578 ShortTurbo 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) +0.094s
After 		Unknown Unknown 0 78 c578 ShortTurbo 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) +0.105s
After 		Unknown Unknown 0 78 c578 LongFast 2026-05-17 03:39:18 UTC View
45

Total Receptions

1

Unique Gateways