Packet #18000018 Success

POSITION_APP packet from VO1SU (VO1) to !ffffffff

45
Total Receptions
1
Unique Gateways
0
Hop Count
31
Payload Bytes
Packet Information
Database ID: 18000018
Mesh Packet ID: 0xcba8252f
Used for correlation across gateways
Timestamp: 2026-03-27 20:33:55 UTC
From Node: VO1SU (VO1)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: VO1SU (VO1)
Channel: MediumFast
RSSI: Unknown
SNR: Unknown
Hop Info: 0/7 hops
Start: 7, Limit: 7
Relay Node: 51 VO1
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: 31 bytes
Decoded: Yes
Decoded Data:
Latitude:47.749530°
Longitude:-59.310080°
Altitude:-12 m
Precision:14 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:31 bytes
Gateway:!fa505051
Channel:MediumFast
Payload Type:POSITION_APP
Hop Count:Unknown / 7
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 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 !fa505051
Node ID format
channel_id MediumFast
packet MeshPacket (31 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 4199567441
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 31 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 1774643636
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 81
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1774643635.679132
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: MediumFast
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~1500.0m 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: !fa505051
Position Precision: 14 bits (~1500.0m accuracy)
Position precision meters: 1500.0
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:31 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 47.7495296, "longitude": -59.31008, "altitude": -12, "sats_in_view": null, "precision_bits": 14 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!fa505051", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 4199567441, "to": 4294967295, "id": 3416794415, "rx_time": 1774643636, "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": 81, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000761c150000a6dc18f4ffffffffffffffff0125b4e9c6692802b8010e", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 477495296, "longitude_i": -593100800, "altitude": -12, "time": 1774643636, "location_source": "LOC_INTERNAL", "precision_bits": 14, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (31 bytes)
0d0000761c150000a6dc18f4ffffffffffffffff0125b4e9c6692802b8010e
Hex Analysis:
Size:31 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
VO1SU (VO1) Primary 0.000s
Reference 		Unknown Unknown 0 51 VO1 MediumFast 2026-03-27 20:33:55 UTC Current
VO1SU (VO1) -0.645s
Before 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.602s
Before 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.571s
Before 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.506s
Before 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.475s
Before 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.447s
Before 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.410s
Before 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.386s
Before 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.354s
Before 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.329s
Before 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.290s
Before 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.183s
Before 		Unknown Unknown 0 51 VO1 MediumFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.157s
Before 		Unknown Unknown 0 51 VO1 MediumFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.118s
Before 		Unknown Unknown 0 51 VO1 MediumFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.096s
Before 		Unknown Unknown 0 51 VO1 MediumFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.062s
Before 		Unknown Unknown 0 51 VO1 MediumFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.032s
Before 		Unknown Unknown 0 51 VO1 MediumFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.023s
After 		Unknown Unknown 0 51 VO1 MediumFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.050s
After 		Unknown Unknown 0 51 VO1 MediumFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.098s
After 		Unknown Unknown 0 51 VO1 MediumFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.116s
After 		Unknown Unknown 0 51 VO1 MediumFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.145s
After 		Unknown Unknown 0 51 VO1 ShortFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.168s
After 		Unknown Unknown 0 51 VO1 ShortFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.212s
After 		Unknown Unknown 0 51 VO1 ShortFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.278s
After 		Unknown Unknown 0 51 VO1 ShortFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.310s
After 		Unknown Unknown 0 51 VO1 ShortFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.372s
After 		Unknown Unknown 0 51 VO1 ShortFast 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +0.426s
After 		Unknown Unknown 0 51 VO1 ShortFast 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +0.450s
After 		Unknown Unknown 0 51 VO1 ShortFast 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +0.500s
After 		Unknown Unknown 0 51 VO1 ShortFast 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +0.520s
After 		Unknown Unknown 0 51 VO1 ShortFast 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +0.570s
After 		Unknown Unknown 0 51 VO1 ShortFast 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +0.611s
After 		Unknown Unknown 0 51 VO1 ShortTurbo 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +0.645s
After 		Unknown Unknown 0 51 VO1 ShortTurbo 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +0.708s
After 		Unknown Unknown 0 51 VO1 ShortTurbo 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +0.740s
After 		Unknown Unknown 0 51 VO1 ShortTurbo 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +0.833s
After 		Unknown Unknown 0 51 VO1 ShortTurbo 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +0.891s
After 		Unknown Unknown 0 51 VO1 ShortTurbo 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +0.924s
After 		Unknown Unknown 0 51 VO1 ShortTurbo 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +1.005s
After 		Unknown Unknown 0 51 VO1 ShortTurbo 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +1.065s
After 		Unknown Unknown 0 51 VO1 ShortTurbo 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +1.089s
After 		Unknown Unknown 0 51 VO1 ShortTurbo 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +1.165s
After 		Unknown Unknown 0 51 VO1 ShortTurbo 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +1.208s
After 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:56 UTC View
45

Total Receptions

1

Unique Gateways