Packet #39483959 Success

POSITION_APP packet from Meshtastic 7c50 (7c50) to !ffffffff

45
Total Receptions
1
Unique Gateways
0
Hop Count
28
Payload Bytes
Packet Information
Database ID: 39483959
Mesh Packet ID: 0x503e28d6
Used for correlation across gateways
Timestamp: 2026-05-16 07:27:47 UTC
From Node: Meshtastic 7c50 (7c50)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Meshtastic 7c50 (7c50)
Channel: ShortFast
RSSI: Unknown
SNR: Unknown
Hop Info: 0/3 hops
Start: 3, Limit: 3
Relay Node: 50 7c50
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: 28 bytes
Decoded: Yes
Decoded Data:
Latitude:43.529011°
Longitude:-80.386458°
Altitude:337 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:28 bytes
Gateway:!33677c50
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 !33677c50
Node ID format
channel_id ShortFast
packet MeshPacket (28 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 862420048
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 28 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 1778916466
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 80
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1778916467.3660278
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: ~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: !33677c50
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:28 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 43.5290112, "longitude": -80.3864576, "altitude": 337, "sats_in_view": null, "precision_bits": 14 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!33677c50", "channel_id": "ShortFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 862420048, "to": 4294967295, "id": 1346250966, "rx_time": 1778916466, "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": 80, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000f21915000016d018d10225721c086a28017800800100b8010e", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 435290112, "longitude_i": -803864576, "altitude": 337, "time": 1778916466, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 14, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (28 bytes)
0d0000f21915000016d018d10225721c086a28017800800100b8010e
Hex Analysis:
Size:28 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
Meshtastic 7c50 (7c50) Primary 0.000s
Reference 		Unknown Unknown 0 50 7c50 ShortFast 2026-05-16 07:27:47 UTC Current
Meshtastic 7c50 (7c50) -0.337s
Before 		Unknown Unknown 0 50 7c50 LongFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.312s
Before 		Unknown Unknown 0 50 7c50 LongFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.301s
Before 		Unknown Unknown 0 50 7c50 LongFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.291s
Before 		Unknown Unknown 0 50 7c50 LongFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.280s
Before 		Unknown Unknown 0 50 7c50 LongFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.269s
Before 		Unknown Unknown 0 50 7c50 LongFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.259s
Before 		Unknown Unknown 0 50 7c50 LongFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.248s
Before 		Unknown Unknown 0 50 7c50 LongFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.237s
Before 		Unknown Unknown 0 50 7c50 LongFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.225s
Before 		Unknown Unknown 0 50 7c50 LongFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.213s
Before 		Unknown Unknown 0 50 7c50 LongFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.201s
Before 		Unknown Unknown 0 50 7c50 MediumFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.190s
Before 		Unknown Unknown 0 50 7c50 MediumFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.178s
Before 		Unknown Unknown 0 50 7c50 MediumFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.166s
Before 		Unknown Unknown 0 50 7c50 MediumFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.155s
Before 		Unknown Unknown 0 50 7c50 MediumFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.143s
Before 		Unknown Unknown 0 50 7c50 MediumFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.133s
Before 		Unknown Unknown 0 50 7c50 MediumFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.123s
Before 		Unknown Unknown 0 50 7c50 MediumFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.112s
Before 		Unknown Unknown 0 50 7c50 MediumFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.102s
Before 		Unknown Unknown 0 50 7c50 MediumFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.092s
Before 		Unknown Unknown 0 50 7c50 MediumFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.081s
Before 		Unknown Unknown 0 50 7c50 ShortFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.071s
Before 		Unknown Unknown 0 50 7c50 ShortFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.059s
Before 		Unknown Unknown 0 50 7c50 ShortFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.048s
Before 		Unknown Unknown 0 50 7c50 ShortFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.036s
Before 		Unknown Unknown 0 50 7c50 ShortFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.023s
Before 		Unknown Unknown 0 50 7c50 ShortFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) -0.012s
Before 		Unknown Unknown 0 50 7c50 ShortFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) +0.011s
After 		Unknown Unknown 0 50 7c50 ShortFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) +0.023s
After 		Unknown Unknown 0 50 7c50 ShortFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) +0.035s
After 		Unknown Unknown 0 50 7c50 ShortFast 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) +0.045s
After 		Unknown Unknown 0 50 7c50 ShortTurbo 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) +0.056s
After 		Unknown Unknown 0 50 7c50 ShortTurbo 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) +0.067s
After 		Unknown Unknown 0 50 7c50 ShortTurbo 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) +0.077s
After 		Unknown Unknown 0 50 7c50 ShortTurbo 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) +0.088s
After 		Unknown Unknown 0 50 7c50 ShortTurbo 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) +0.098s
After 		Unknown Unknown 0 50 7c50 ShortTurbo 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) +0.109s
After 		Unknown Unknown 0 50 7c50 ShortTurbo 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) +0.120s
After 		Unknown Unknown 0 50 7c50 ShortTurbo 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) +0.134s
After 		Unknown Unknown 0 50 7c50 ShortTurbo 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) +0.146s
After 		Unknown Unknown 0 50 7c50 ShortTurbo 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) +0.158s
After 		Unknown Unknown 0 50 7c50 ShortTurbo 2026-05-16 07:27:47 UTC View
Meshtastic 7c50 (7c50) +0.172s
After 		Unknown Unknown 0 50 7c50 LongFast 2026-05-16 07:27:47 UTC View
45

Total Receptions

1

Unique Gateways