Packet #28076801 Success

POSITION_APP packet from brokerLZZPortable (BLZP) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	28076801
Mesh Packet ID:	`0x516cdf5f` Used for correlation across gateways
Timestamp:	2025-12-16 16:03:37 UTC
From Node:	brokerLZZPortable (BLZP)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	tizon (Sylv)
Channel:	MediumFast
RSSI:	-108 dBm
SNR:	1.25 dBm
Hop Info:	3/5 hops Start: 5, Limit: 2
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: 34 bytes

Decoded: Yes

Decoded Data:

Latitude:	40.448819°
Longitude:	-3.696230°
Altitude:	794 m
Satellites:	9
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:	34 bytes
Gateway:	!9e7809e8
Channel:	MediumFast
Payload Type:	POSITION_APP
Hop Count:	3 / 5

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`	`!9e7809e8` Node ID format
`channel_id`	`MediumFast`
`packet`	`MeshPacket` (34 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`789253721` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`34` bytes	size
`hop_limit`	`2` Remaining hops allowed	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`3` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-108.0` dBm Signal strength at gateway	int32
`rx_snr`	`1.25` dB Signal quality at gateway	float
`rx_time`	`1765901016` 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`	`1765901017.8712683` 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: ~2900.0m accuracy

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (3 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!9e7809e8`
Position Precision:	13 bits (~2900.0m accuracy)
Position precision meters:	`2900.0`
Signal Metrics:	RSSI: -108.0 dBm SNR: 1.25 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	POSITION_APP
Size:	34 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 40.4488192, "longitude": -3.6962304, "altitude": 794, "sats_in_view": 9, "precision_bits": 13 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!9e7809e8", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 789253721, "to": 4294967295, "id": 1366089567, "rx_time": 1765901016, "rx_snr": 1.25, "rx_rssi": -108, "hop_limit": 2, "hop_start": 5, "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": "0d00001c18150000ccfd189a06259e824169280258a0017800800100980109b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 404488192, "longitude_i": -36962304, "altitude": 794, "time": 1765900958, "location_source": "LOC_INTERNAL", "PDOP": 160, "ground_speed": 0, "ground_track": 0, "sats_in_view": 9, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (34 bytes)

0d00001c18150000ccfd189a06259e824169280258a0017800800100980109b8010d

Hex Analysis:

Size:	34 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
tizon (Sylv) Primary	0.000s Reference	-108.0 dBm	1.25 dB	3	`1c` 🐷	MediumFast	2025-12-16 16:03:37 UTC	Current
Meshtastic 26b0 (26b0)	-69.236s Before	-99.0 dBm	-5.00 dB	1	`f5` RPT4	MediumFast	2025-12-16 16:02:28 UTC	View
Wake Up, Neo...📡 (NEO)	-69.196s Before	-101.0 dBm	-6.50 dB	1	`f5` RPT4	MediumFast	2025-12-16 16:02:28 UTC	View
JAGO1_Cañaveral (JAGO)	-68.933s Before	-122.0 dBm	-12.25 dB	2	`b0` Vbm , PUPM , 26b0	MediumFast	2025-12-16 16:02:28 UTC	View
XiaoWatt c4c8 🌐🔌 (c4c8)	-68.892s Before	-81.0 dBm	-11.00 dB	2	`b0` Vbm , 26b0	MediumFast	2025-12-16 16:02:28 UTC	View
GRN1-Base🗼🌐 🔋 (GRN1)	-68.522s Before	-100.0 dBm	-4.75 dB	2	`b0` Vbm , 26b0	MediumFast	2025-12-16 16:02:29 UTC	View
Ocumare Norte🗼🌐 (RRN)	-68.488s Before	-68.0 dBm	10.50 dB	2	`98` TCLB	MediumFast	2025-12-16 16:02:29 UTC	View
Quass001 ☄️ (Q001)	-68.034s Before	-47.0 dBm	11.00 dB	2	`3a` Q005	MediumFast	2025-12-16 16:02:29 UTC	View
Varela Bot 🏡🤖 (🤖)	-63.801s Before	-75.0 dBm	9.50 dB	4	`1c` 🏡	MediumFast	2025-12-16 16:02:34 UTC	View
P3 iGate 🏠🌐 (P3N2)	-63.740s Before	-35.0 dBm	11.75 dB	4	`25` P3N1	MediumFast	2025-12-16 16:02:34 UTC	View
🎄 SkG@Home 📡🌐 (SkGH)	-63.213s Before	-100.0 dBm	-13.25 dB	2	`61` TO1	MediumFast	2025-12-16 16:02:34 UTC	View
ETH Maverick (ET01)	-62.914s Before	-108.0 dBm	-5.75 dB	2	`61` TO1	MediumFast	2025-12-16 16:02:34 UTC	View
PXT_Home (PXT1)	-62.260s Before	-94.0 dBm	8.75 dB	3	`fd` BAS2	MediumFast	2025-12-16 16:02:35 UTC	View
Villarejo01 (VIL1)	-62.219s Before	-33.0 dBm	11.50 dB	3	`c6` d5c6	MediumFast	2025-12-16 16:02:35 UTC	View
ETH Goose (ET03)	-61.799s Before	-30.0 dBm	11.25 dB	3	`41` ET01	MediumFast	2025-12-16 16:02:36 UTC	View
Eagle’s Nest (EAGL)	-2.609s Before	-96.0 dBm	9.25 dB	3	`48` SMR1	MediumFast	2025-12-16 16:03:35 UTC	View
Karabanchel_Baldur (KarB)	-0.313s Before	-95.0 dBm	-2.25 dB	3	`1c` 🐷	MediumFast	2025-12-16 16:03:37 UTC	View
Skynet (Sky)	-0.067s Before	-86.0 dBm	-9.25 dB	3	`1c` 🐷	MediumFast	2025-12-16 16:03:37 UTC	View
Getafe ☀️ (GTF)	+0.074s After	-123.0 dBm	-13.00 dB	3	`1c` 🐷	MediumFast	2025-12-16 16:03:37 UTC	View
Fenix (FENX)	+1.056s After	-117.0 dBm	-10.25 dB	3	`1c` 🐷	MediumFast	2025-12-16 16:03:38 UTC	View
Meshtastic b2b4📡🌐 (b2b4)	+5.055s After	-117.0 dBm	-15.00 dB	4	`88` KarB	MediumFast	2025-12-16 16:03:42 UTC	View

21

Total Receptions

21

Unique Gateways