Packet #28300304 Success

POSITION_APP packet from COSLADA f1dc 🇪🇦🛰️ (f1dc) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	28300304
Mesh Packet ID:	`0xd071580f` Used for correlation across gateways
Timestamp:	2025-12-17 16:28:36 UTC
From Node:	COSLADA f1dc 🇪🇦🛰️ (f1dc)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Karabanchel_Baldur (KarB)
Channel:	MediumFast
RSSI:	-95 dBm
SNR:	-6.0 dBm
Hop Info:	4/4 hops Start: 4, Limit: 0
Relay Node:	`1c` 🐷 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: 26 bytes

Decoded: Yes

Decoded Data:

Latitude:	40.429158°
Longitude:	-3.545498°
Altitude:	709 m
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:	26 bytes
Gateway:	!13280088
Channel:	MediumFast
Payload Type:	POSITION_APP
Hop Count:	4 / 4

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 2 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!13280088` Node ID format
`channel_id`	`MediumFast`
`packet`	`MeshPacket` (26 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2661347804` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`26` 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`	`-95.0` dBm Signal strength at gateway	int32
`rx_snr`	`-6.00` dB Signal quality at gateway	float
`rx_time`	`1765988916` 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`	`28` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1765988916.3043008` 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: MediumFast
✓ Gateway node ID tracked
✓ Reduced position precision: ~729.0m accuracy

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (4 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!13280088`
Position Precision:	15 bits (~729.0m accuracy)
Position precision meters:	`729.0`
Signal Metrics:	RSSI: -95.0 dBm SNR: -6.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	POSITION_APP
Size:	26 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 40.4291584, "longitude": -3.5454976, "altitude": 709, "sats_in_view": null, "precision_bits": 15 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!13280088", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2661347804, "to": 4294967295, "id": 3497089039, "rx_time": 1765988916, "rx_snr": -6.0, "rx_rssi": -95, "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": 28, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00001918150000e3fd18c505252dda42692802589908b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 404291584, "longitude_i": -35454976, "altitude": 709, "time": 1765988909, "location_source": "LOC_INTERNAL", "PDOP": 1049, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (26 bytes)

0d00001918150000e3fd18c505252dda42692802589908b8010f

Hex Analysis:

Size:	26 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
Karabanchel_Baldur (KarB) Primary	0.000s Reference	-95.0 dBm	-6.00 dB	4	`1c` 🐷	MediumFast	2025-12-17 16:28:36 UTC	Current
Ocumare Norte🗼🌐 (RRN)	-4.198s Before	-104.0 dBm	-10.25 dB	1	`6a` b76a	MediumFast	2025-12-17 16:28:32 UTC	View
Meshtastic 26b0 (26b0)	-4.192s Before	-86.0 dBm	6.75 dB	1	`6a` b76a	MediumFast	2025-12-17 16:28:32 UTC	View
XiaoWatt c4c8 🌐🔌 (c4c8)	-3.826s Before	-78.0 dBm	-8.00 dB	2	`b0` Vbm , 26b0	MediumFast	2025-12-17 16:28:32 UTC	View
GRN1-Base🗼🌐 🔋 (GRN1)	-3.812s Before	-109.0 dBm	-10.75 dB	1	`6a` b76a	MediumFast	2025-12-17 16:28:32 UTC	View
🎄 SkG@Home 📡🌐 (SkGH)	-3.357s Before	-101.0 dBm	-9.50 dB	2	`61` TO1	MediumFast	2025-12-17 16:28:32 UTC	View
Wake Up, Neo...📡 (NEO)	-3.124s Before	-92.0 dBm	-6.50 dB	3	`ec` JAS	MediumFast	2025-12-17 16:28:33 UTC	View
ETH Maverick (ET01)	-3.067s Before	-107.0 dBm	-5.50 dB	2	`61` TO1	MediumFast	2025-12-17 16:28:33 UTC	View
JAGO1_Cañaveral (JAGO)	-3.021s Before	-118.0 dBm	-9.25 dB	3	`fc`	MediumFast	2025-12-17 16:28:33 UTC	View
Fenix (FENX)	-3.011s Before	-118.0 dBm	-12.00 dB	2	`61` TO1	MediumFast	2025-12-17 16:28:33 UTC	View
Eagle’s Nest (EAGL)	-2.605s Before	-114.0 dBm	-3.75 dB	3	`74`	MediumFast	2025-12-17 16:28:33 UTC	View
Rodashtastic🗼🌐 (RDSt)	-2.499s Before	-112.0 dBm	-2.75 dB	3	`94`	MediumFast	2025-12-17 16:28:33 UTC	View
Meshtastic 1760 (1760)	-2.352s Before	-133.0 dBm	-11.50 dB	4	`90`	MediumFast	2025-12-17 16:28:33 UTC	View
PXT_Home (PXT1)	-2.278s Before	-96.0 dBm	9.00 dB	3	`fd` BAS2	MediumFast	2025-12-17 16:28:34 UTC	View
ETH Goose (ET03)	-2.241s Before	-39.0 dBm	11.25 dB	3	`41` ET01	MediumFast	2025-12-17 16:28:34 UTC	View
TweeteR ☀🔋 (TwT)	-2.019s Before	-114.0 dBm	-6.00 dB	3	`fd` BAS2	MediumFast	2025-12-17 16:28:34 UTC	View
[samsepi0l] 📡🌐 (tlg0)	-2.006s Before	-76.0 dBm	9.25 dB	3	`fc` 74fc , Anu2	MediumFast	2025-12-17 16:28:34 UTC	View
MOVIL 1 🟢 MANCHASTIC (MV1V)	-1.753s Before	-66.0 dBm	11.00 dB	3	`b4`	MediumFast	2025-12-17 16:28:34 UTC	View
Varela Bot 🏡🤖 (🤖)	-1.205s Before	-87.0 dBm	3.50 dB	4	`1c` 🏡	MediumFast	2025-12-17 16:28:35 UTC	View
tizon (Sylv)	+0.256s After	-110.0 dBm	-2.00 dB	4	`1c` 🐷	MediumFast	2025-12-17 16:28:36 UTC	View
🤖 Nicolas Cage 🌐 (Cage)	+0.284s After	-96.0 dBm	9.75 dB	4	`1c` 🐷	MediumFast	2025-12-17 16:28:36 UTC	View
Quass001 ☄️ (Q001)	+25.380s After	-51.0 dBm	11.00 dB	4	`3a` Q005	MediumFast	2025-12-17 16:29:01 UTC	View

22

Total Receptions

22

Unique Gateways