Packet #27785733 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:	27785733
Mesh Packet ID:	`0x9fa7b4d4` Used for correlation across gateways
Timestamp:	2025-12-15 08:57:11 UTC
From Node:	EC4TR Pedrezuela (b76a)
To Node:	Sierra norte Madrid ⛰️🗼🌞 (SNM)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	NodeJPL6 (JPL6)
Channel:	MediumFast
RSSI:	-100 dBm
SNR:	-13.0 dBm
Hop Info:	1/3 hops Start: 3, Limit: 2
Relay Node:	`b0` Vb2 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:	!b2a70a38
Channel:	MediumFast
Payload Type:	POSITION_APP
Hop Count:	1 / 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 (1 hops)
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!b2a70a38` 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`	`2` Remaining hops allowed	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-100.0` dBm Signal strength at gateway	int32
`rx_snr`	`-13.00` dB Signal quality at gateway	float
`rx_time`	`1765789030` 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`	`176` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1765789031.1382034` 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 (1 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!b2a70a38`
Position Precision:	13 bits (~2900.0m accuracy)
Position precision meters:	`2900.0`
Signal Metrics:	RSSI: -100.0 dBm SNR: -13.00 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": "!b2a70a38", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2654844778, "to": 1129719940, "id": 2678568148, "rx_time": 1765789030, "rx_snr": -13.0, "rx_rssi": -100, "hop_limit": 2, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 176, "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
NodeJPL6 (JPL6) Primary	0.000s Reference	-100.0 dBm	-13.00 dB	1	`b0` Vb2	MediumFast	2025-12-15 08:57:11 UTC	Current
Venturada2 🗼🌞 (Vb2)	-0.328s Before	-87.0 dBm	7.25 dB	0	`6a` b76a	MediumFast	2025-12-15 08:57:10 UTC	View
XiaoWatt c4c8 🌐🔌 (c4c8)	-0.071s Before	-79.0 dBm	5.50 dB	1	`b0` Vbm , Vb2	MediumFast	2025-12-15 08:57:11 UTC	View
GRN1-Base🗼🌐 🔋 (GRN1)	+0.251s After	-97.0 dBm	-1.50 dB	1	`b0` Vbm , Vb2	MediumFast	2025-12-15 08:57:11 UTC	View
Wake Up, Neo...📡 (NEO)	+0.830s After	-102.0 dBm	-4.50 dB	2	`f5` RPT4	MediumFast	2025-12-15 08:57:11 UTC	View
Aldinra_1640_🗼_🌐 (AldB)	+1.224s After	-117.0 dBm	-8.25 dB	2	`f5` RPT4	MediumFast	2025-12-15 08:57:12 UTC	View
P3 iGate 🏠🌐 (P3N2)	+1.494s After	-39.0 dBm	11.25 dB	2	`25` P3N1	MediumFast	2025-12-15 08:57:12 UTC	View
Eagle’s Nest (EAGL)	+1.661s After	-116.0 dBm	-6.75 dB	2	`74`	MediumFast	2025-12-15 08:57:12 UTC	View
Varela Bot 🏡🤖 (🤖)	+1.764s After	-75.0 dBm	10.25 dB	2	`1c` 🏡	MediumFast	2025-12-15 08:57:12 UTC	View
🎄 SkG@Home 📡🌐 (SkGH)	+1.770s After	-99.0 dBm	-12.50 dB	1	`61` TO1	MediumFast	2025-12-15 08:57:12 UTC	View
ETH Maverick (ET01)	+2.019s After	-107.0 dBm	-5.50 dB	1	`61` TO1	MediumFast	2025-12-15 08:57:13 UTC	View
PXT_Home (PXT1)	+2.056s After	-110.0 dBm	-3.75 dB	3	`48` mfms	MediumFast	2025-12-15 08:57:13 UTC	View
Meshtastic 1760 (1760)	+2.147s After	-117.0 dBm	-1.25 dB	2	`f5` RPT4	MediumFast	2025-12-15 08:57:13 UTC	View
ETH Goose (ET03)	+2.444s After	-28.0 dBm	10.75 dB	2	`41` ET01	MediumFast	2025-12-15 08:57:13 UTC	View
Karabanchel_Baldur (KarB)	+2.518s After	-94.0 dBm	2.25 dB	2	`1c` 🐷	MediumFast	2025-12-15 08:57:13 UTC	View
EA4GGL (4GGL)	+2.805s After	-126.0 dBm	-12.75 dB	3	`25` 🌇	MediumFast	2025-12-15 08:57:13 UTC	View
Justicia Meshtastic b0e4 🏢 (b0e4)	+2.808s After	-115.0 dBm	-9.50 dB	3	`25` 🌇	MediumFast	2025-12-15 08:57:13 UTC	View
tizon (Sylv)	+2.829s After	-107.0 dBm	1.50 dB	2	`1c` 🐷	MediumFast	2025-12-15 08:57:13 UTC	View
Quixote_JS8_7 (QXT7)	+2.840s After	-18.0 dBm	11.00 dB	3	-	MediumFast	2025-12-15 08:57:13 UTC	View
Skynet (Sky)	+2.893s After	-81.0 dBm	6.00 dB	2	`1c` 🐷	MediumFast	2025-12-15 08:57:14 UTC	View
JAGO1_Cañaveral (JAGO)	+2.983s After	Unknown	10.25 dB	3	`70` JAG2	MediumFast	2025-12-15 08:57:14 UTC	View
srs-h3 📡🌐 (srs0)	+3.470s After	-121.0 dBm	-14.50 dB	3	`bb` 03bb	MediumFast	2025-12-15 08:57:14 UTC	View
Rodashtastic🗼🌐 (RDSt)	+3.579s After	-115.0 dBm	-6.25 dB	2	`e8` GRN1	MediumFast	2025-12-15 08:57:14 UTC	View
Fenix (FENX)	+3.868s After	-115.0 dBm	-9.50 dB	2	`1c` 🐷	MediumFast	2025-12-15 08:57:15 UTC	View
Getafe ☀️ (GTF)	+3.884s After	-119.0 dBm	-8.75 dB	2	`1c` 🐷	MediumFast	2025-12-15 08:57:15 UTC	View
Quass001 ☄️ (Q001)	+4.869s After	-51.0 dBm	10.75 dB	3	`3a` Q005	MediumFast	2025-12-15 08:57:16 UTC	View
Ocumare Norte🗼🌐 (RRN)	+7.848s 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