Packet #13617453 Success

POSITION_APP packet from Kala_CLM (Kala) to !ffffffff

17
Total Receptions
17
Unique Gateways
0
Hop Count
36
Payload Bytes
Packet Information
Database ID: 13617453
Mesh Packet ID: 0xda3c26ce
Used for correlation across gateways
Timestamp: 2025-10-04 21:51:57 UTC
From Node: Kala_CLM (Kala)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Arganda C191 🌐 (ARG)
Channel: MediumSlow
RSSI: -113 dBm
SNR: -3.0 dBm
Hop Info: 0/4 hops
Start: 4, Limit: 4
Payload Data
Protocol: POSITION_APP
Size: 36 bytes
Decoded: Yes
Decoded Data:
Latitude:40.311194°
Longitude:-3.440640°
Altitude:608 m
Satellites:5
Precision:15 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:!9ee79500
Channel:MediumSlow
Payload Type:POSITION_APP
Hop Count:Unknown / 4
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumSlow
+ 3 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !9ee79500
Node ID format
channel_id MediumSlow
packet MeshPacket (36 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3877556925
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 4
Remaining hops allowed 		uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi -113.0 dBm
Signal strength at gateway 		int32
rx_snr -3.00 dB
Signal quality at gateway 		float
rx_time 1759611878
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 189
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1759614717.8939633
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
  • ✓ Reduced position precision: ~729.0m accuracy
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !9ee79500
Position Precision: 15 bits (~729.0m accuracy)
Position precision meters: 729.0
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -113.0 dBm
SNR: -3.00 dB
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": 40.3111936, "longitude": -3.44064, "altitude": 608, "sats_in_view": 5, "precision_bits": 15 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!9ee79500", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3877556925, "to": 4294967295, "id": 3661375182, "rx_time": 1759611878, "rx_snr": -3.0, "rx_rssi": -113, "hop_limit": 4, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 189, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00000718150000f3fd18e00425e48be1682802588a0378098001e0e750980105b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403111936, "longitude_i": -34406400, "altitude": 608, "time": 1759611876, "location_source": "LOC_INTERNAL", "PDOP": 394, "ground_speed": 9, "ground_track": 1324000, "sats_in_view": 5, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (36 bytes)
0d00000718150000f3fd18e00425e48be1682802588a0378098001e0e750980105b8010f
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 Channel Timestamp Actions
Arganda C191 🌐 (ARG) Primary 0.000s
Reference 		-113.0 dBm -3.00 dB 0 MediumSlow 2025-10-04 21:51:57 Current
GRN1-Base🗼🌐 (GRN1) -2836.080s
Before 		-99.0 dBm -3.25 dB 2 MediumSlow 2025-10-04 21:04:41 View
[TLG] 📡🌐🔋🔌 (tlg0) -2835.094s
Before 		-110.0 dBm -4.75 dB 2 MediumSlow 2025-10-04 21:04:42 View
Monolito (MoN) -2834.758s
Before 		-64.0 dBm 9.00 dB 4 MediumSlow 2025-10-04 21:04:43 View
g1bal (g1b0) -2834.689s
Before 		-111.0 dBm -5.50 dB 4 MediumSlow 2025-10-04 21:04:43 View
Venturada2🗼🌐☀️ (Vb2) -2834.679s
Before 		-100.0 dBm -4.50 dB 4 MediumSlow 2025-10-04 21:04:43 View
Malasaña Solar ☀️ (🌇) -2834.498s
Before 		-115.0 dBm -13.25 dB 4 MediumSlow 2025-10-04 21:04:43 View
Meshtastic 1760 (1760) -2834.445s
Before 		-123.0 dBm -5.50 dB 4 MediumSlow 2025-10-04 21:04:43 View
Baldur Fijo (BalF) -2834.423s
Before 		-105.0 dBm -3.50 dB 4 MediumSlow 2025-10-04 21:04:43 View
Suop 📡 🌐 (SUOP) -2834.415s
Before 		-117.0 dBm -8.50 dB 4 MediumSlow 2025-10-04 21:04:43 View
Trasto 🐰 Va (trva) -2829.083s
Before 		-109.0 dBm -5.00 dB 3 MediumSlow 2025-10-04 21:04:48 View
tizon (Sylv) -2829.046s
Before 		-101.0 dBm 6.25 dB 3 MediumSlow 2025-10-04 21:04:48 View
Kenobi23 QTH (5aec) -2828.947s
Before 		-121.0 dBm -13.75 dB 3 MediumSlow 2025-10-04 21:04:48 View
Will - Azuqueca (WAzq) -2824.015s
Before 		-127.0 dBm -16.50 dB 4 MediumSlow 2025-10-04 21:04:53 View
Mec Rocket Meco (MRM) -2823.985s
Before 		-107.0 dBm -5.75 dB 4 MediumSlow 2025-10-04 21:04:53 View
Villalbilla02 (VBV2) -2822.615s
Before 		-113.0 dBm -3.00 dB 4 MediumSlow 2025-10-04 21:04:55 View
Kenobi23 movil (5672) -1177.269s
Before 		-43.0 dBm 8.25 dB 4 MediumSlow 2025-10-04 21:32:20 View
17

Total Receptions

17

Unique Gateways