Packet #17800225 Success

POSITION_APP packet from JPG 37fc (JPGx) to !ffffffff

45
Total Receptions
1
Unique Gateways
0
Hop Count
37
Payload Bytes
Packet Information
Database ID: 17800225
Mesh Packet ID: 0xbac20023
Used for correlation across gateways
Timestamp: 2026-03-27 09:51:59 UTC
From Node: JPG 37fc (JPGx)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: JPG 37fc (JPGx)
Channel: ShortFast
RSSI: Unknown
SNR: Unknown
Hop Info: 0/3 hops
Start: 3, Limit: 3
Relay Node: fc JPGx
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: 37 bytes
Decoded: Yes
Decoded Data:
Latitude:43.017830°
Longitude:-80.923853°
Altitude:287 m
Satellites:11
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:37 bytes
Gateway:!f71e37fc
Channel:ShortFast
Payload Type:POSITION_APP
Hop Count:Unknown / 3
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortFast
+ 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 !f71e37fc
Node ID format
channel_id ShortFast
packet MeshPacket (37 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 4145952764
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 37 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 1774605118
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 252
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1774605119.4363673
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
  • ✓ 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: !f71e37fc
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:37 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 43.0178304, "longitude": -80.9238528, "altitude": 287, "sats_in_view": 11, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!f71e37fc", "channel_id": "ShortFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 4145952764, "to": 4294967295, "id": 3133276195, "rx_time": 1774605118, "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": 252, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000a419150000c4cf189f02253e53c669280258830178008001d09bcf0e98010bb8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 430178304, "longitude_i": -809238528, "altitude": 287, "time": 1774605118, "location_source": "LOC_INTERNAL", "PDOP": 131, "ground_speed": 0, "ground_track": 30658000, "sats_in_view": 11, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (37 bytes)
0d0000a419150000c4cf189f02253e53c669280258830178008001d09bcf0e98010bb8010d
Hex Analysis:
Size:37 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
JPG 37fc (JPGx) Primary 0.000s
Reference 		Unknown Unknown 0 fc JPGx ShortFast 2026-03-27 09:51:59 UTC Current
JPG 37fc (JPGx) -0.313s
Before 		Unknown Unknown 0 fc JPGx LongFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.279s
Before 		Unknown Unknown 0 fc JPGx LongFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.268s
Before 		Unknown Unknown 0 fc JPGx LongFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.252s
Before 		Unknown Unknown 0 fc JPGx LongFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.233s
Before 		Unknown Unknown 0 fc JPGx LongFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.216s
Before 		Unknown Unknown 0 fc JPGx LongFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.205s
Before 		Unknown Unknown 0 fc JPGx LongFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.193s
Before 		Unknown Unknown 0 fc JPGx LongFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.181s
Before 		Unknown Unknown 0 fc JPGx LongFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.169s
Before 		Unknown Unknown 0 fc JPGx LongFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.157s
Before 		Unknown Unknown 0 fc JPGx LongFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.145s
Before 		Unknown Unknown 0 fc JPGx MediumFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.134s
Before 		Unknown Unknown 0 fc JPGx MediumFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.122s
Before 		Unknown Unknown 0 fc JPGx MediumFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.110s
Before 		Unknown Unknown 0 fc JPGx MediumFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.099s
Before 		Unknown Unknown 0 fc JPGx MediumFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.089s
Before 		Unknown Unknown 0 fc JPGx MediumFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.078s
Before 		Unknown Unknown 0 fc JPGx MediumFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.067s
Before 		Unknown Unknown 0 fc JPGx MediumFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.056s
Before 		Unknown Unknown 0 fc JPGx MediumFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.046s
Before 		Unknown Unknown 0 fc JPGx MediumFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.035s
Before 		Unknown Unknown 0 fc JPGx MediumFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.024s
Before 		Unknown Unknown 0 fc JPGx ShortFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) -0.012s
Before 		Unknown Unknown 0 fc JPGx ShortFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) +0.012s
After 		Unknown Unknown 0 fc JPGx ShortFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) +0.024s
After 		Unknown Unknown 0 fc JPGx ShortFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) +0.036s
After 		Unknown Unknown 0 fc JPGx ShortFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) +0.048s
After 		Unknown Unknown 0 fc JPGx ShortFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) +0.060s
After 		Unknown Unknown 0 fc JPGx ShortFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) +0.071s
After 		Unknown Unknown 0 fc JPGx ShortFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) +0.083s
After 		Unknown Unknown 0 fc JPGx ShortFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) +0.094s
After 		Unknown Unknown 0 fc JPGx ShortFast 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) +0.104s
After 		Unknown Unknown 0 fc JPGx ShortTurbo 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) +0.115s
After 		Unknown Unknown 0 fc JPGx ShortTurbo 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) +0.126s
After 		Unknown Unknown 0 fc JPGx ShortTurbo 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) +0.137s
After 		Unknown Unknown 0 fc JPGx ShortTurbo 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) +0.148s
After 		Unknown Unknown 0 fc JPGx ShortTurbo 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) +0.159s
After 		Unknown Unknown 0 fc JPGx ShortTurbo 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) +0.171s
After 		Unknown Unknown 0 fc JPGx ShortTurbo 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) +0.183s
After 		Unknown Unknown 0 fc JPGx ShortTurbo 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) +0.195s
After 		Unknown Unknown 0 fc JPGx ShortTurbo 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) +0.207s
After 		Unknown Unknown 0 fc JPGx ShortTurbo 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) +0.218s
After 		Unknown Unknown 0 fc JPGx ShortTurbo 2026-03-27 09:51:59 UTC View
JPG 37fc (JPGx) +0.230s
After 		Unknown Unknown 0 fc JPGx LongFast 2026-03-27 09:51:59 UTC View
45

Total Receptions

1

Unique Gateways