Packet #39454610 Success

POSITION_APP packet from Some User Lincoln Field (SULF) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	39454610
Mesh Packet ID:	`0x171163bf` Used for correlation across gateways
Timestamp:	2026-05-16 05:48:31 UTC
From Node:	Some User Lincoln Field (SULF)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Some User Lincoln Field (SULF)
Channel:	MediumFast
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/5 hops Start: 5, Limit: 5
Relay Node:	`ac` SULF 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: 27 bytes

Decoded: Yes

Decoded Data:

Latitude:	45.364019°
Longitude:	-75.772723°
Altitude:	78 m
Precision:	14 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:	27 bytes
Gateway:	!b03c96ac
Channel:	MediumFast
Payload Type:	POSITION_APP
Hop Count:	Unknown / 5

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 3 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!b03c96ac` Node ID format
`channel_id`	`MediumFast`
`packet`	`MeshPacket` (27 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2956760748` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`27` bytes	size
`hop_limit`	`5` Remaining hops allowed	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	Not set	int32
`rx_snr`	Not set	float
`rx_time`	`1778910509` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	`10` Packet priority level	enum
`delayed`	Not set	enum
`channel`	Not set	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`172` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1778910511.6222572` 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: ~1500.0m accuracy
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers

MQTT-Specific Fields

Gateway ID:	`!b03c96ac`
Position Precision:	14 bits (~1500.0m accuracy)
Position precision meters:	`1500.0`
Zero Hop Policy:	Enabled Direct gateway connection

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	POSITION_APP
Size:	27 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 45.3640192, "longitude": -75.7727232, "altitude": 78, "sats_in_view": null, "precision_bits": 14 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!b03c96ac", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2956760748, "to": 4294967295, "id": 387015615, "rx_time": 1778910509, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 5, "hop_start": 5, "via_mqtt": false, "want_ack": false, "priority": 10, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 172, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00000a1b150000d6d2184e252d05086a28037800800100b8010e", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 453640192, "longitude_i": -757727232, "altitude": 78, "time": 1778910509, "location_source": "LOC_EXTERNAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 14, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (27 bytes)

0d00000a1b150000d6d2184e252d05086a28037800800100b8010e

Hex Analysis:

Size:	27 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	Relay	Channel	Timestamp	Actions
Some User Lincoln Field (SULF) Primary	0.000s Reference	Unknown	Unknown	`ac` SULF	MediumFast	2026-05-16 05:48:31 UTC	Current
Some User Lincoln Field (SULF)	-0.156s Before	Unknown	Unknown	`ac` SULF	ShortTurbo	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	-0.130s Before	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	-0.119s Before	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	-0.108s Before	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	-0.098s Before	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	-0.087s Before	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	-0.077s Before	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	-0.066s Before	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	-0.056s Before	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	-0.045s Before	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	-0.035s Before	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	-0.024s Before	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	-0.013s Before	Unknown	Unknown	`ac` SULF	MediumFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.012s After	Unknown	Unknown	`ac` SULF	MediumFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.026s After	Unknown	Unknown	`ac` SULF	MediumFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.038s After	Unknown	Unknown	`ac` SULF	MediumFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.049s After	Unknown	Unknown	`ac` SULF	MediumFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.061s After	Unknown	Unknown	`ac` SULF	MediumFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.072s After	Unknown	Unknown	`ac` SULF	MediumFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.083s After	Unknown	Unknown	`ac` SULF	MediumFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.093s After	Unknown	Unknown	`ac` SULF	MediumFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.104s After	Unknown	Unknown	`ac` SULF	MediumFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.114s After	Unknown	Unknown	`ac` SULF	ShortFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.125s After	Unknown	Unknown	`ac` SULF	ShortFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.135s After	Unknown	Unknown	`ac` SULF	ShortFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.146s After	Unknown	Unknown	`ac` SULF	ShortFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.156s After	Unknown	Unknown	`ac` SULF	ShortFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.168s After	Unknown	Unknown	`ac` SULF	ShortFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.180s After	Unknown	Unknown	`ac` SULF	ShortFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.192s After	Unknown	Unknown	`ac` SULF	ShortFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.204s After	Unknown	Unknown	`ac` SULF	ShortFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.216s After	Unknown	Unknown	`ac` SULF	ShortFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.228s After	Unknown	Unknown	`ac` SULF	ShortFast	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.239s After	Unknown	Unknown	`ac` SULF	ShortTurbo	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.251s After	Unknown	Unknown	`ac` SULF	ShortTurbo	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.261s After	Unknown	Unknown	`ac` SULF	ShortTurbo	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.272s After	Unknown	Unknown	`ac` SULF	ShortTurbo	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.283s After	Unknown	Unknown	`ac` SULF	ShortTurbo	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.293s After	Unknown	Unknown	`ac` SULF	ShortTurbo	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.303s After	Unknown	Unknown	`ac` SULF	ShortTurbo	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.314s After	Unknown	Unknown	`ac` SULF	ShortTurbo	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.325s After	Unknown	Unknown	`ac` SULF	ShortTurbo	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.335s After	Unknown	Unknown	`ac` SULF	ShortTurbo	2026-05-16 05:48:31 UTC	View
Some User Lincoln Field (SULF)	+0.347s After	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:48:31 UTC	View

45

Total Receptions

1

Unique Gateways