Packet #40135179 Success

POSITION_APP packet from brh tracker (brtk) to !ffffffff

45
Total Receptions
1
Unique Gateways
0
Hop Count
36
Payload Bytes
Packet Information
Database ID: 40135179
Mesh Packet ID: 0xd981c77e
Used for correlation across gateways
Timestamp: 2026-05-17 20:55:20 UTC
From Node: brh tracker (brtk)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: brh tracker (brtk)
Channel: MediumFast
RSSI: Unknown
SNR: Unknown
Hop Info: 0/3 hops
Start: 3, Limit: 3
Relay Node: b5 brtk
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: 36 bytes
Decoded: Yes
Decoded Data:
Latitude:50.882150°
Longitude:-114.006426°
Altitude:1002 m
Satellites:16
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:36 bytes
Gateway:!23e4aeb5
Channel:MediumFast
Payload Type:POSITION_APP
Hop Count:Unknown / 3
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 !23e4aeb5
Node ID format
channel_id MediumFast
packet MeshPacket (36 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 602189493
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 36 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 1779050930
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 181
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1779051320.4126203
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: ~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: !23e4aeb5
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:36 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 50.8821504, "longitude": -114.0064256, "altitude": 1002, "sats_in_view": 16, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!23e4aeb5", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 602189493, "to": 4294967295, "id": 3649161086, "rx_time": 1779050930, "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": 181, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000541e1500000cbc18ea0725b2290a6a2802587778008001e08b980f980110b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 508821504, "longitude_i": -1140064256, "altitude": 1002, "time": 1779050930, "location_source": "LOC_INTERNAL", "PDOP": 119, "ground_speed": 0, "ground_track": 31852000, "sats_in_view": 16, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (36 bytes)
0d0000541e1500000cbc18ea0725b2290a6a2802587778008001e08b980f980110b8010d
Hex Analysis:
Size:36 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
brh tracker (brtk) Primary 0.000s
Reference 		Unknown Unknown 0 b5 brtk MediumFast 2026-05-17 20:55:20 UTC Current
brh tracker (brtk) -0.156s
Before 		Unknown Unknown 0 b5 brtk LongFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) -0.137s
Before 		Unknown Unknown 0 b5 brtk LongFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) -0.124s
Before 		Unknown Unknown 0 b5 brtk LongFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) -0.112s
Before 		Unknown Unknown 0 b5 brtk LongFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) -0.101s
Before 		Unknown Unknown 0 b5 brtk LongFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) -0.090s
Before 		Unknown Unknown 0 b5 brtk LongFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) -0.079s
Before 		Unknown Unknown 0 b5 brtk LongFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) -0.068s
Before 		Unknown Unknown 0 b5 brtk LongFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) -0.056s
Before 		Unknown Unknown 0 b5 brtk LongFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) -0.045s
Before 		Unknown Unknown 0 b5 brtk LongFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) -0.033s
Before 		Unknown Unknown 0 b5 brtk LongFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) -0.021s
Before 		Unknown Unknown 0 b5 brtk MediumFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.011s
After 		Unknown Unknown 0 b5 brtk MediumFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.029s
After 		Unknown Unknown 0 b5 brtk MediumFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.049s
After 		Unknown Unknown 0 b5 brtk MediumFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.066s
After 		Unknown Unknown 0 b5 brtk MediumFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.078s
After 		Unknown Unknown 0 b5 brtk MediumFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.089s
After 		Unknown Unknown 0 b5 brtk MediumFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.100s
After 		Unknown Unknown 0 b5 brtk MediumFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.111s
After 		Unknown Unknown 0 b5 brtk MediumFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.123s
After 		Unknown Unknown 0 b5 brtk MediumFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.134s
After 		Unknown Unknown 0 b5 brtk ShortFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.145s
After 		Unknown Unknown 0 b5 brtk ShortFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.157s
After 		Unknown Unknown 0 b5 brtk ShortFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.169s
After 		Unknown Unknown 0 b5 brtk ShortFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.183s
After 		Unknown Unknown 0 b5 brtk ShortFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.195s
After 		Unknown Unknown 0 b5 brtk ShortFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.207s
After 		Unknown Unknown 0 b5 brtk ShortFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.219s
After 		Unknown Unknown 0 b5 brtk ShortFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.231s
After 		Unknown Unknown 0 b5 brtk ShortFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.243s
After 		Unknown Unknown 0 b5 brtk ShortFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.255s
After 		Unknown Unknown 0 b5 brtk ShortFast 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.266s
After 		Unknown Unknown 0 b5 brtk ShortTurbo 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.278s
After 		Unknown Unknown 0 b5 brtk ShortTurbo 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.287s
After 		Unknown Unknown 0 b5 brtk ShortTurbo 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.304s
After 		Unknown Unknown 0 b5 brtk ShortTurbo 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.322s
After 		Unknown Unknown 0 b5 brtk ShortTurbo 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.338s
After 		Unknown Unknown 0 b5 brtk ShortTurbo 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.357s
After 		Unknown Unknown 0 b5 brtk ShortTurbo 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.379s
After 		Unknown Unknown 0 b5 brtk ShortTurbo 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.402s
After 		Unknown Unknown 0 b5 brtk ShortTurbo 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.423s
After 		Unknown Unknown 0 b5 brtk ShortTurbo 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.443s
After 		Unknown Unknown 0 b5 brtk ShortTurbo 2026-05-17 20:55:20 UTC View
brh tracker (brtk) +0.463s
After 		Unknown Unknown 0 b5 brtk LongFast 2026-05-17 20:55:20 UTC View
45

Total Receptions

1

Unique Gateways