Packet #10746875 Success

POSITION_APP packet from EC4TR Pedrezuela (b76a) to Sierra norte Madrid ⛰️🗼🌞 (SNM)

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	10746875
Mesh Packet ID:	`0xedf46f1c` Used for correlation across gateways
Timestamp:	2025-09-15 18:09:11 UTC
From Node:	EC4TR Pedrezuela (b76a)
To Node:	Sierra norte Madrid ⛰️🗼🌞 (SNM)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Venturada base🗼🌐 (Vb)
Channel:	MediumSlow
RSSI:	-86 dBm
SNR:	9.25 dBm
Hop Info:	0/3 hops Start: 3, Limit: 3

Payload Data

Protocol: POSITION_APP

Size: 28 bytes

Decoded: Yes

Decoded Data:

Latitude:	40.710963°
Longitude:	-3.643802°
Altitude:	870 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:	28 bytes
Gateway:	!2f72ec6c
Channel:	MediumSlow
Payload Type:	POSITION_APP
Hop Count:	Unknown / 3

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 4 more...

Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ RF signal metrics exposed (location inference possible)

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!2f72ec6c` Node ID format
`channel_id`	`MediumSlow`
`packet`	`MeshPacket` (28 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2654844778` Source node ID	uint32
`to`	`1129719940` Target node ID	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`	`-86.0` dBm Signal strength at gateway	int32
`rx_snr`	`9.25` dB Signal quality at gateway	float
`rx_time`	`1757959749` 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`	`106` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1757959751.6604877` 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
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Packet visible to MQTT subscribers
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!2f72ec6c`
Position Precision:	13 bits (~2900.0m accuracy)
Position precision meters:	`2900.0`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -86.0 dBm SNR: 9.25 dB

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": 40.7109632, "longitude": -3.6438016, "altitude": 870, "sats_in_view": null, "precision_bits": 13 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!2f72ec6c", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2654844778, "to": 1129719940, "id": 3992219420, "rx_time": 1757959749, "rx_snr": 9.25, "rx_rssi": -86, "hop_limit": 3, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 106, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00004418150000d4fd18e606254556c86828017800800100b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407109632, "longitude_i": -36438016, "altitude": 870, "time": 1757959749, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (28 bytes)

0d00004418150000d4fd18e606254556c86828017800800100b8010d

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	Channel	Timestamp	Actions
Venturada base🗼🌐 (Vb) Primary	0.000s Reference	-86.0 dBm	9.25 dB	0	MediumSlow	2025-09-15 18:09:11	Current
GRN1-Base🗼🌐 (GRN1)	+0.368s After	-112.0 dBm	-4.50 dB	0	MediumSlow	2025-09-15 18:09:12	View
Venturada2🗼🌐☀️ (Vb2)	+1.036s After	-85.0 dBm	7.25 dB	0	MediumSlow	2025-09-15 18:09:12	View
Suop 📡 🌐 (SUOP)	+1.281s After	-119.0 dBm	-12.00 dB	1	MediumSlow	2025-09-15 18:09:12	View
Meshtastic 18a4 (18a4)	+1.525s After	Unknown	Unknown	2	MediumSlow	2025-09-15 18:09:13	View
Rodashtastic🗼🌐 (RDSt)	+2.383s After	-123.0 dBm	-14.50 dB	1	MediumSlow	2025-09-15 18:09:14	View
Meshtastic 1760 (1760)	+2.440s After	-127.0 dBm	-7.50 dB	1	MediumSlow	2025-09-15 18:09:14	View
Perseo 📡 🌐 (nvm1)	+5.348s After	-94.0 dBm	1.75 dB	3	MediumSlow	2025-09-15 18:09:17	View
Meshtastic b0e4 (b0e4)	+14.354s After	-128.0 dBm	-16.50 dB	3	MediumSlow	2025-09-15 18:09:26	View
Tlgo 📡🌐🔋🔌 (TLG0)	+14.926s After	-114.0 dBm	-8.75 dB	2	MediumSlow	2025-09-15 18:09:26	View
Mec Rocket Meco (MRM)	+16.118s After	-115.0 dBm	-12.50 dB	2	MediumSlow	2025-09-15 18:09:27	View
🌐Charly Torre 2🛰 (C182)	+16.387s After	-123.0 dBm	-14.00 dB	2	MediumSlow	2025-09-15 18:09:28	View
@lazynoda cocidito 🥵 🗼🌐 (LNCM)	+16.902s After	-110.0 dBm	1.00 dB	2	MediumSlow	2025-09-15 18:09:28	View
Meshtastic fbec (fbec)	+16.948s After	-126.0 dBm	-7.00 dB	2	MediumSlow	2025-09-15 18:09:28	View
Will - Azuqueca (WAzq)	+17.633s After	-111.0 dBm	-9.50 dB	2	MediumSlow	2025-09-15 18:09:29	View
🌐Charly Unid Movil🛰 (C181)	+19.069s After	-24.0 dBm	8.75 dB	3	MediumSlow	2025-09-15 18:09:30	View
Monolito (7960)	+20.475s After	-67.0 dBm	8.50 dB	3	MediumSlow	2025-09-15 18:09:32	View
Rainbow 🦄 (Jen4)	+29.067s After	-54.0 dBm	9.25 dB	3	MediumSlow	2025-09-15 18:09:40	View
SkG@Home 📡🌐 (SkGH)	+102.501s After	-111.0 dBm	-3.00 dB	3	MediumSlow	2025-09-15 18:10:54	View

19

Total Receptions

19

Unique Gateways