Packet #13904472 Success

POSITION_APP packet from 🌐Charly Unid Movil🛰 (C181) to !ffffffff

17
Total Receptions
17
Unique Gateways
4
Hop Count
37
Payload Bytes
Packet Information
Database ID: 13904472
Mesh Packet ID: 0x75c9e2bf
Used for correlation across gateways
Timestamp: 2025-10-06 20:07:13 UTC
From Node: 🌐Charly Unid Movil🛰 (C181)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: EA5GHE-09 (58a8)
Channel: MediumSlow
RSSI: -97 dBm
SNR: 3.5 dBm
Hop Info: 4/4 hops
Start: 4, Limit: 0
Payload Data
Protocol: POSITION_APP
Size: 37 bytes
Decoded: Yes
Decoded Data:
Latitude:40.343142°
Longitude:-3.706880°
Altitude:1138 m
Satellites:7
Precision:18 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:37 bytes
Gateway:!ba6558a8
Channel:MediumSlow
Payload Type:POSITION_APP
Hop Count:4 / 4
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumSlow
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !ba6558a8
Node ID format
channel_id MediumSlow
packet MeshPacket (37 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2956846908
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 37 bytes size
hop_limit Not set uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 4
Calculated: hop_start - hop_limit 		derived
rx_rssi -97.0 dBm
Signal strength at gateway 		int32
rx_snr 3.50 dB
Signal quality at gateway 		float
rx_time 1759781231
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 Not set uint32
tx_after Not set uint32
timestamp 1759781233.728777
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: MediumSlow
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Full GPS precision shared
  • ⚠ Multi-hop path visible (4 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !ba6558a8
Position Precision: 18 bits (~91.0m accuracy)
Position precision meters: 91.0
Signal Metrics: RSSI: -97.0 dBm
SNR: 3.50 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:37 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.3431424, "longitude": -3.70688, "altitude": 1138, "sats_in_view": 7, "precision_bits": 18 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!ba6558a8", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2956846908, "to": 4294967295, "id": 1976165055, "rx_time": 1759781231, "rx_snr": 3.5, "rx_rssi": -97, "hop_limit": 0, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 0, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00e00b18150060cafd18f208256721e468280258dc0378038001f09b9b07980107b80112", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403431424, "longitude_i": -37068800, "altitude": 1138, "time": 1759781223, "location_source": "LOC_INTERNAL", "PDOP": 476, "ground_speed": 3, "ground_track": 15126000, "sats_in_view": 7, "precision_bits": 18, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (37 bytes)
0d00e00b18150060cafd18f208256721e468280258dc0378038001f09b9b07980107b80112
Hex Analysis:
Size:37 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
EA5GHE-09 (58a8) Primary 0.000s
Reference 		-97.0 dBm 3.50 dB 4 MediumSlow 2025-10-06 20:07:13 Current
🌐Charly Unid Movil🛰 (C181) -10.778s
Before 		Unknown Unknown 0 MediumSlow 2025-10-06 20:07:02 View
Venturada2🗼🌐☀️ (Vb2) -9.021s
Before 		-116.0 dBm -16.25 dB 1 MediumSlow 2025-10-06 20:07:04 View
Baldur Fijo (BalF) -8.700s
Before 		-121.0 dBm -14.25 dB 1 MediumSlow 2025-10-06 20:07:05 View
tizon (Sylv) -8.671s
Before 		-99.0 dBm 5.75 dB 1 MediumSlow 2025-10-06 20:07:05 View
Meshtastic 1760 (1760) -8.209s
Before 		-129.0 dBm -10.00 dB 2 MediumSlow 2025-10-06 20:07:05 View
GRN1-Base🗼🌐 (GRN1) -8.200s
Before 		-90.0 dBm 5.00 dB 2 MediumSlow 2025-10-06 20:07:05 View
Meshtastic 18a4 (18a4) -7.960s
Before 		Unknown Unknown 3 MediumSlow 2025-10-06 20:07:05 View
Villalbilla02 (VBV2) -7.590s
Before 		-109.0 dBm -0.50 dB 2 MediumSlow 2025-10-06 20:07:06 View
Mec Rocket Meco (MRM) -7.372s
Before 		-108.0 dBm -7.00 dB 3 MediumSlow 2025-10-06 20:07:06 View
Ocumare_Base_🗼🌐 (CATA) -6.856s
Before 		-103.0 dBm -6.50 dB 3 MediumSlow 2025-10-06 20:07:06 View
[TLG] 📡🌐🔋🔌 (tlg0) -6.410s
Before 		-119.0 dBm -13.00 dB 3 MediumSlow 2025-10-06 20:07:07 View
Antonio 82d4 (82d4) -6.354s
Before 		-121.0 dBm -13.25 dB 3 MediumSlow 2025-10-06 20:07:07 View
Oxygen EA4HKU (O) -2.716s
Before 		-117.0 dBm -15.00 dB 3 MediumSlow 2025-10-06 20:07:11 View
Carbon EA4HKU (C) -2.434s
Before 		-107.0 dBm 2.50 dB 3 MediumSlow 2025-10-06 20:07:11 View
Suop 📡 🌐 (SUOP) -2.369s
Before 		-112.0 dBm -9.25 dB 3 MediumSlow 2025-10-06 20:07:11 View
Meshtastic 54a4 Justicia (54a4) +1.631s
After 		-114.0 dBm -9.25 dB 4 MediumSlow 2025-10-06 20:07:15 View
17

Total Receptions

17

Unique Gateways