Packet #14318545 Success

POSITION_APP packet from ValdeTorres001 🗼 (va01) to Sierra norte Madrid ⛰️🗼🌞 (SNM)

15
Total Receptions
15
Unique Gateways
2
Hop Count
25
Payload Bytes
Packet Information
Database ID: 14318545
Mesh Packet ID: 0x6d81ee6b
Used for correlation across gateways
Timestamp: 2025-10-09 06:28:10 UTC
From Node: ValdeTorres001 🗼 (va01)
To Node: Sierra norte Madrid ⛰️🗼🌞 (SNM)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Oxygen EA4HKU (O)
Channel: MediumSlow
RSSI: -114 dBm
SNR: -10.75 dBm
Hop Info: 2/3 hops
Start: 3, Limit: 1
Payload Data
Protocol: POSITION_APP
Size: 25 bytes
Decoded: Yes
Decoded Data:
Latitude:40.658534°
Longitude:-3.486515°
Altitude:689 m
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:25 bytes
Gateway:!a0cb6198
Channel:MediumSlow
Payload Type:POSITION_APP
Hop Count:2 / 3
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
⚠ Multi-hop path visible (2 hops)
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !a0cb6198
Node ID format
channel_id MediumSlow
packet MeshPacket (25 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3677050192
Source node ID 		uint32
to 1129719940
Target node ID 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 25 bytes size
hop_limit 1
Remaining hops allowed 		uint32
hop_start 3
Initial hop limit 		uint32
hops_taken 2
Calculated: hop_start - hop_limit 		derived
rx_rssi -114.0 dBm
Signal strength at gateway 		int32
rx_snr -10.75 dB
Signal quality at gateway 		float
rx_time 1759991288
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack False
No ACK requested 		bool
priority Not set enum
delayed Not set enum
channel Not set uint32
pki_encrypted False
Standard encryption 		bool
next_hop Not set uint32
relay_node 245
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1759991290.4565806
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: MediumSlow
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~2900.0m accuracy
Exposure Risks:
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (2 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !a0cb6198
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Signal Metrics: RSSI: -114.0 dBm
SNR: -10.75 dB
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": 40.6585344, "longitude": -3.4865152, "altitude": 689, "sats_in_view": null, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!a0cb6198", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3677050192, "to": 1129719940, "id": 1837231723, "rx_time": 1759991288, "rx_snr": -10.75, "rx_rssi": -114, "hop_limit": 1, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 245, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00003c18150000ecfd18b10525f455e76828015000b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 406585344, "longitude_i": -34865152, "altitude": 689, "time": 1759991284, "location_source": "LOC_MANUAL", "altitude_geoidal_separation": 0, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (25 bytes)
0d00003c18150000ecfd18b10525f455e76828015000b8010d
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

Loading reception map...

Map shows gateway locations that received this packet. Hop counts are displayed if available.
Gateway Time Offset RSSI SNR Hops Channel Timestamp Actions
Oxygen EA4HKU (O) Primary 0.000s
Reference 		-114.0 dBm -10.75 dB 2 MediumSlow 2025-10-09 06:28:10 Current
Venturada2🗼🌐☀️ (Vb2) -3.603s
Before 		-90.0 dBm 1.50 dB 0 MediumSlow 2025-10-09 06:28:06 View
XiaoWatt c4c8 🌐🔌 (c4c8) -2.864s
Before 		-96.0 dBm -0.25 dB 1 MediumSlow 2025-10-09 06:28:07 View
Machu Pichu (MaPi) -2.630s
Before 		-98.0 dBm -2.00 dB 1 MediumSlow 2025-10-09 06:28:07 View
Meshtastic 1760 (1760) -1.363s
Before 		-127.0 dBm -11.75 dB 1 MediumSlow 2025-10-09 06:28:09 View
GRN1-Base🗼🌐 (GRN1) -1.286s
Before 		-90.0 dBm 5.00 dB 1 MediumSlow 2025-10-09 06:28:09 View
[TLG] 📡🌐🔋🔌 (tlg0) -0.931s
Before 		-119.0 dBm -13.75 dB 1 MediumSlow 2025-10-09 06:28:09 View
Carbon EA4HKU (C) +0.210s
After 		-109.0 dBm 1.50 dB 2 MediumSlow 2025-10-09 06:28:10 View
Meshtastic 18a4 (18a4) +0.235s
After 		-51.0 dBm 14.25 dB 2 MediumSlow 2025-10-09 06:28:10 View
Ocumare_Base_🗼🌐 (CATA) +4.258s
After 		-92.0 dBm 4.25 dB 3 MediumSlow 2025-10-09 06:28:14 View
Karabanchel_Baldur (KarB) +72.352s
After 		-85.0 dBm 4.50 dB 2 MediumSlow 2025-10-09 06:29:22 View
Trasto 🐰 Va (trva) +72.668s
After 		-120.0 dBm -16.50 dB 2 MediumSlow 2025-10-09 06:29:23 View
tizon (Sylv) +72.686s
After 		-103.0 dBm 5.25 dB 2 MediumSlow 2025-10-09 06:29:23 View
🌐Charly Unid Movil🛰 (C181) +73.932s
After 		-112.0 dBm -9.25 dB 3 MediumSlow 2025-10-09 06:29:24 View
Ortem 🚀 2b88 (2b88) +146.775s
After 		-103.0 dBm -0.50 dB 3 MediumSlow 2025-10-09 06:30:37 View
15

Total Receptions

15

Unique Gateways