Packet #18000013 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: 18000013
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 1774643635.5220082
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) -0.488s
Before 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.445s
Before 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.414s
Before 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.349s
Before 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.318s
Before 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.289s
Before 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.253s
Before 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.228s
Before 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.196s
Before 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.172s
Before 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.133s
Before 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) -0.026s
Before 		Unknown Unknown 0 51 VO1 MediumFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.039s
After 		Unknown Unknown 0 51 VO1 MediumFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.061s
After 		Unknown Unknown 0 51 VO1 MediumFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.095s
After 		Unknown Unknown 0 51 VO1 MediumFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.125s
After 		Unknown Unknown 0 51 VO1 MediumFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.157s
After 		Unknown Unknown 0 51 VO1 MediumFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.180s
After 		Unknown Unknown 0 51 VO1 MediumFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.207s
After 		Unknown Unknown 0 51 VO1 MediumFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.255s
After 		Unknown Unknown 0 51 VO1 MediumFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.273s
After 		Unknown Unknown 0 51 VO1 MediumFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.302s
After 		Unknown Unknown 0 51 VO1 ShortFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.325s
After 		Unknown Unknown 0 51 VO1 ShortFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.369s
After 		Unknown Unknown 0 51 VO1 ShortFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.435s
After 		Unknown Unknown 0 51 VO1 ShortFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.467s
After 		Unknown Unknown 0 51 VO1 ShortFast 2026-03-27 20:33:55 UTC View
VO1SU (VO1) +0.529s
After 		Unknown Unknown 0 51 VO1 ShortFast 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +0.583s
After 		Unknown Unknown 0 51 VO1 ShortFast 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +0.607s
After 		Unknown Unknown 0 51 VO1 ShortFast 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +0.657s
After 		Unknown Unknown 0 51 VO1 ShortFast 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +0.677s
After 		Unknown Unknown 0 51 VO1 ShortFast 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +0.727s
After 		Unknown Unknown 0 51 VO1 ShortFast 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +0.768s
After 		Unknown Unknown 0 51 VO1 ShortTurbo 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +0.802s
After 		Unknown Unknown 0 51 VO1 ShortTurbo 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +0.865s
After 		Unknown Unknown 0 51 VO1 ShortTurbo 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +0.897s
After 		Unknown Unknown 0 51 VO1 ShortTurbo 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +0.990s
After 		Unknown Unknown 0 51 VO1 ShortTurbo 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +1.048s
After 		Unknown Unknown 0 51 VO1 ShortTurbo 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +1.081s
After 		Unknown Unknown 0 51 VO1 ShortTurbo 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +1.163s
After 		Unknown Unknown 0 51 VO1 ShortTurbo 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +1.222s
After 		Unknown Unknown 0 51 VO1 ShortTurbo 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +1.246s
After 		Unknown Unknown 0 51 VO1 ShortTurbo 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +1.322s
After 		Unknown Unknown 0 51 VO1 ShortTurbo 2026-03-27 20:33:56 UTC View
VO1SU (VO1) +1.365s
After 		Unknown Unknown 0 51 VO1 LongFast 2026-03-27 20:33:56 UTC View
45

Total Receptions

1

Unique Gateways