Packet #168731 Success

POSITION_APP packet from SFBSRI72 LZ1S/r SWATbg 🇧🇬 🏠 (KILO) to LZ4NY🙍🇧🇬 (MIRO)

2
Total Receptions
2
Unique Gateways
0
Hop Count
25
Payload Bytes
Packet Information
Database ID: 168731
Mesh Packet ID: 0x6ece7505
Used for correlation across gateways
Timestamp: 2025-09-09 17:04:39 UTC
From Node: SFBSRI72 LZ1S/r SWATbg 🇧🇬 🏠 (KILO)
To Node: LZ4NY🙍🇧🇬 (MIRO)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: SFBSRI72 LZ1S/r SWATbg 🇧🇬 🏠 (KILO)
Channel: Bulgaria
RSSI: Unknown
SNR: Unknown
Hop Info: 0/2 hops
Start: 2, Limit: 2
Payload Data
Protocol: POSITION_APP
Size: 25 bytes
Decoded: Yes
Decoded Data:
Latitude:42.662298°
Longitude:23.276749°
Altitude:638 m
Precision:17 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:25 bytes
Gateway:!da63b8e8
Channel:Bulgaria
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:
⚠ Packet visible to MQTT subscribers
⚠ Full GPS precision shared
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !da63b8e8
Node ID format
channel_id Bulgaria
packet MeshPacket (25 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3663968488
Source node ID 		uint32
to 1786817921
Target node ID 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 25 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 1757426677
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 232
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1757426679.0473073
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
  • ✓ Custom channel: Bulgaria
  • ✓ Gateway node ID tracked
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Full GPS precision shared
MQTT-Specific Fields
Gateway ID: !da63b8e8
Position Precision: 17 bits (~182.0m accuracy)
Position precision meters: 182.0
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:25 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 42.6622976, "longitude": 23.2767488, "altitude": 638, "sats_in_view": null, "precision_bits": 17 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!da63b8e8", "channel_id": "Bulgaria", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3663968488, "to": 1786817921, "id": 1859024133, "rx_time": 1757426677, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 2, "hop_start": 2, "via_mqtt": 0, "want_ack": 0, "priority": 70, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 232, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00c06d191500c0df0d18fe0425f533c06828015000b80111", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 426622976, "longitude_i": 232767488, "altitude": 638, "time": 1757426677, "location_source": "LOC_MANUAL", "altitude_geoidal_separation": 0, "precision_bits": 17, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (25 bytes)
0d00c06d191500c0df0d18fe0425f533c06828015000b80111
Hex Analysis:
Size:25 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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Map shows gateway locations that received this packet. Hop counts are displayed if available.
Gateway Time Offset RSSI SNR Hops Channel Timestamp Actions
SFBSRI72 LZ1S/r SWATbg 🇧🇬 🏠 (KILO) Primary 0.000s
Reference 		Unknown Unknown 0 Bulgaria 2025-09-09 17:04:39 Current
LZ4NY🙍🇧🇬 (MIRO) +0.958s
After 		-101.0 dBm 4.00 dB 0 Bulgaria 2025-09-09 17:04:40 View
2

Total Receptions

2

Unique Gateways