Packet #27785761 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:	27785761
Mesh Packet ID:	`0x9fa7b4d4` Used for correlation across gateways
Timestamp:	2025-12-15 08:57:13 UTC
From Node:	EC4TR Pedrezuela (b76a)
To Node:	Sierra norte Madrid ⛰️🗼🌞 (SNM)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	ETH Goose (ET03)
Channel:	MediumFast
RSSI:	-28 dBm
SNR:	10.75 dBm
Hop Info:	2/3 hops Start: 3, Limit: 1
Relay Node:	`41` ET01 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: 23 bytes

Decoded: Yes

Decoded Data:

Latitude:	40.710963°
Longitude:	-3.643802°
Altitude:	923 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:	23 bytes
Gateway:	!909ec2ec
Channel:	MediumFast
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

Field	Value
`gateway_id`	`!909ec2ec` Node ID format
`channel_id`	`MediumFast`
`packet`	`MeshPacket` (23 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`	`23` 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`	`-28.0` dBm Signal strength at gateway	int32
`rx_snr`	`10.75` dB Signal quality at gateway	float
`rx_time`	`1765789029` 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`	`65` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1765789033.5819318` 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: MediumFast
✓ 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:	`!909ec2ec`
Position Precision:	13 bits (~2900.0m accuracy)
Position precision meters:	`2900.0`
Signal Metrics:	RSSI: -28.0 dBm SNR: 10.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	POSITION_APP
Size:	23 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 40.7109632, "longitude": -3.6438016, "altitude": 923, "sats_in_view": null, "precision_bits": 13 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!909ec2ec", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2654844778, "to": 1129719940, "id": 2678568148, "rx_time": 1765789029, "rx_snr": 10.75, "rx_rssi": -28, "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": 65, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00004418150000d4fd189b0728017800800100b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407109632, "longitude_i": -36438016, "altitude": 923, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (23 bytes)

0d00004418150000d4fd189b0728017800800100b8010d

Hex Analysis:

Size:	23 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
ETH Goose (ET03) Primary	0.000s Reference	-28.0 dBm	10.75 dB	2	`41` ET01	MediumFast	2025-12-15 08:57:13 UTC	Current
Venturada2 🗼🌞 (Vb2)	-2.772s Before	-87.0 dBm	7.25 dB	0	`6a` b76a	MediumFast	2025-12-15 08:57:10 UTC	View
XiaoWatt c4c8 🌐🔌 (c4c8)	-2.515s Before	-79.0 dBm	5.50 dB	1	`b0` Vbm , Vb2	MediumFast	2025-12-15 08:57:11 UTC	View
NodeJPL6 (JPL6)	-2.444s Before	-100.0 dBm	-13.00 dB	1	`b0` Vb2	MediumFast	2025-12-15 08:57:11 UTC	View
GRN1-Base🗼🌐 🔋 (GRN1)	-2.192s Before	-97.0 dBm	-1.50 dB	1	`b0` Vbm , Vb2	MediumFast	2025-12-15 08:57:11 UTC	View
Wake Up, Neo...📡 (NEO)	-1.614s Before	-102.0 dBm	-4.50 dB	2	`f5` RPT4	MediumFast	2025-12-15 08:57:11 UTC	View
Aldinra_1640_🗼_🌐 (AldB)	-1.220s Before	-117.0 dBm	-8.25 dB	2	`f5` RPT4	MediumFast	2025-12-15 08:57:12 UTC	View
P3 iGate 🏠🌐 (P3N2)	-0.950s Before	-39.0 dBm	11.25 dB	2	`25` P3N1	MediumFast	2025-12-15 08:57:12 UTC	View
Eagle’s Nest (EAGL)	-0.783s Before	-116.0 dBm	-6.75 dB	2	`74`	MediumFast	2025-12-15 08:57:12 UTC	View
Varela Bot 🏡🤖 (🤖)	-0.680s Before	-75.0 dBm	10.25 dB	2	`1c` 🏡	MediumFast	2025-12-15 08:57:12 UTC	View
🎄 SkG@Home 📡🌐 (SkGH)	-0.674s Before	-99.0 dBm	-12.50 dB	1	`61` TO1	MediumFast	2025-12-15 08:57:12 UTC	View
ETH Maverick (ET01)	-0.425s Before	-107.0 dBm	-5.50 dB	1	`61` TO1	MediumFast	2025-12-15 08:57:13 UTC	View
PXT_Home (PXT1)	-0.388s Before	-110.0 dBm	-3.75 dB	3	`48` mfms	MediumFast	2025-12-15 08:57:13 UTC	View
Meshtastic 1760 (1760)	-0.296s Before	-117.0 dBm	-1.25 dB	2	`f5` RPT4	MediumFast	2025-12-15 08:57:13 UTC	View
Karabanchel_Baldur (KarB)	+0.074s After	-94.0 dBm	2.25 dB	2	`1c` 🐷	MediumFast	2025-12-15 08:57:13 UTC	View
EA4GGL (4GGL)	+0.361s After	-126.0 dBm	-12.75 dB	3	`25` 🌇	MediumFast	2025-12-15 08:57:13 UTC	View
Justicia Meshtastic b0e4 🏢 (b0e4)	+0.364s After	-115.0 dBm	-9.50 dB	3	`25` 🌇	MediumFast	2025-12-15 08:57:13 UTC	View
tizon (Sylv)	+0.385s After	-107.0 dBm	1.50 dB	2	`1c` 🐷	MediumFast	2025-12-15 08:57:13 UTC	View
Quixote_JS8_7 (QXT7)	+0.396s After	-18.0 dBm	11.00 dB	3	-	MediumFast	2025-12-15 08:57:13 UTC	View
Skynet (Sky)	+0.449s After	-81.0 dBm	6.00 dB	2	`1c` 🐷	MediumFast	2025-12-15 08:57:14 UTC	View
JAGO1_Cañaveral (JAGO)	+0.539s After	Unknown	10.25 dB	3	`70` JAG2	MediumFast	2025-12-15 08:57:14 UTC	View
srs-h3 📡🌐 (srs0)	+1.026s After	-121.0 dBm	-14.50 dB	3	`bb` 03bb	MediumFast	2025-12-15 08:57:14 UTC	View
Rodashtastic🗼🌐 (RDSt)	+1.136s After	-115.0 dBm	-6.25 dB	2	`e8` GRN1	MediumFast	2025-12-15 08:57:14 UTC	View
Fenix (FENX)	+1.425s After	-115.0 dBm	-9.50 dB	2	`1c` 🐷	MediumFast	2025-12-15 08:57:15 UTC	View
Getafe ☀️ (GTF)	+1.440s After	-119.0 dBm	-8.75 dB	2	`1c` 🐷	MediumFast	2025-12-15 08:57:15 UTC	View
Quass001 ☄️ (Q001)	+2.426s After	-51.0 dBm	10.75 dB	3	`3a` Q005	MediumFast	2025-12-15 08:57:16 UTC	View
Ocumare Norte🗼🌐 (RRN)	+5.405s After	-16.0 dBm	11.25 dB	1	`6f` RRN4	MediumFast	2025-12-15 08:57:18 UTC	View

27

Total Receptions

27

Unique Gateways