Packet #39833528 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: 39833528
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 1778989158.1530232
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) -0.569s
Before 		Unknown Unknown 0 78 c578 LongFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.546s
Before 		Unknown Unknown 0 78 c578 LongFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.534s
Before 		Unknown Unknown 0 78 c578 LongFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.517s
Before 		Unknown Unknown 0 78 c578 LongFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.507s
Before 		Unknown Unknown 0 78 c578 LongFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.489s
Before 		Unknown Unknown 0 78 c578 LongFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.472s
Before 		Unknown Unknown 0 78 c578 LongFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.455s
Before 		Unknown Unknown 0 78 c578 LongFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.446s
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) -0.422s
Before 		Unknown Unknown 0 78 c578 LongFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.410s
Before 		Unknown Unknown 0 78 c578 MediumFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.398s
Before 		Unknown Unknown 0 78 c578 MediumFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.385s
Before 		Unknown Unknown 0 78 c578 MediumFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.373s
Before 		Unknown Unknown 0 78 c578 MediumFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.361s
Before 		Unknown Unknown 0 78 c578 MediumFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.349s
Before 		Unknown Unknown 0 78 c578 MediumFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.325s
Before 		Unknown Unknown 0 78 c578 MediumFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.314s
Before 		Unknown Unknown 0 78 c578 MediumFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.296s
Before 		Unknown Unknown 0 78 c578 MediumFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.277s
Before 		Unknown Unknown 0 78 c578 MediumFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.259s
Before 		Unknown Unknown 0 78 c578 MediumFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.248s
Before 		Unknown Unknown 0 78 c578 ShortFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.236s
Before 		Unknown Unknown 0 78 c578 ShortFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.223s
Before 		Unknown Unknown 0 78 c578 ShortFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.211s
Before 		Unknown Unknown 0 78 c578 ShortFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.193s
Before 		Unknown Unknown 0 78 c578 ShortFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.181s
Before 		Unknown Unknown 0 78 c578 ShortFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.167s
Before 		Unknown Unknown 0 78 c578 ShortFast 2026-05-17 03:39:17 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.152s
Before 		Unknown Unknown 0 78 c578 ShortFast 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.139s
Before 		Unknown Unknown 0 78 c578 ShortFast 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.127s
Before 		Unknown Unknown 0 78 c578 ShortFast 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.115s
Before 		Unknown Unknown 0 78 c578 ShortFast 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.104s
Before 		Unknown Unknown 0 78 c578 ShortTurbo 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.093s
Before 		Unknown Unknown 0 78 c578 ShortTurbo 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.082s
Before 		Unknown Unknown 0 78 c578 ShortTurbo 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.071s
Before 		Unknown Unknown 0 78 c578 ShortTurbo 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.060s
Before 		Unknown Unknown 0 78 c578 ShortTurbo 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.049s
Before 		Unknown Unknown 0 78 c578 ShortTurbo 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.037s
Before 		Unknown Unknown 0 78 c578 ShortTurbo 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.025s
Before 		Unknown Unknown 0 78 c578 ShortTurbo 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) -0.012s
Before 		Unknown Unknown 0 78 c578 ShortTurbo 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) +0.012s
After 		Unknown Unknown 0 78 c578 ShortTurbo 2026-05-17 03:39:18 UTC View
Lambton Bridge1 - wiki.mt.gt (c578) +0.024s
After 		Unknown Unknown 0 78 c578 LongFast 2026-05-17 03:39:18 UTC View
45

Total Receptions

1

Unique Gateways