Packet #39445684 Success

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

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	39445684
Mesh Packet ID:	`0x8f7caf95` Used for correlation across gateways
Timestamp:	2026-05-16 05:12:29 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:	ShortFast
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:	ShortFast
Payload Type:	POSITION_APP
Hop Count:	Unknown / 5

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortFast
+ 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`	`ShortFast`
`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`	`1778908348` 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`	`1778908349.7464023` 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: ShortFast
✓ 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": "ShortFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2956760748, "to": 4294967295, "id": 2407313301, "rx_time": 1778908348, "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": "0d00000a1b150000d6d2184e25bcfc076a28037800800100b8010e", "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": 1778908348, "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)

0d00000a1b150000d6d2184e25bcfc076a28037800800100b8010e

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	ShortFast	2026-05-16 05:12:29 UTC	Current
Some User Lincoln Field (SULF)	-0.312s Before	Unknown	Unknown	`ac` SULF	ShortTurbo	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.281s Before	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.269s Before	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.258s Before	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.246s Before	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.236s Before	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.225s Before	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.214s Before	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.203s Before	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.192s Before	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.182s Before	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.170s Before	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.156s Before	Unknown	Unknown	`ac` SULF	MediumFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.144s Before	Unknown	Unknown	`ac` SULF	MediumFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.132s Before	Unknown	Unknown	`ac` SULF	MediumFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.120s Before	Unknown	Unknown	`ac` SULF	MediumFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.095s Before	Unknown	Unknown	`ac` SULF	MediumFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.079s Before	Unknown	Unknown	`ac` SULF	MediumFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.065s Before	Unknown	Unknown	`ac` SULF	MediumFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.053s Before	Unknown	Unknown	`ac` SULF	MediumFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.039s Before	Unknown	Unknown	`ac` SULF	MediumFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.030s Before	Unknown	Unknown	`ac` SULF	MediumFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.021s Before	Unknown	Unknown	`ac` SULF	MediumFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	-0.011s Before	Unknown	Unknown	`ac` SULF	ShortFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	+0.011s After	Unknown	Unknown	`ac` SULF	ShortFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	+0.021s After	Unknown	Unknown	`ac` SULF	ShortFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	+0.032s After	Unknown	Unknown	`ac` SULF	ShortFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	+0.044s After	Unknown	Unknown	`ac` SULF	ShortFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	+0.056s After	Unknown	Unknown	`ac` SULF	ShortFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	+0.068s After	Unknown	Unknown	`ac` SULF	ShortFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	+0.081s After	Unknown	Unknown	`ac` SULF	ShortFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	+0.096s After	Unknown	Unknown	`ac` SULF	ShortFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	+0.109s After	Unknown	Unknown	`ac` SULF	ShortFast	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	+0.121s After	Unknown	Unknown	`ac` SULF	ShortTurbo	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	+0.133s After	Unknown	Unknown	`ac` SULF	ShortTurbo	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	+0.144s After	Unknown	Unknown	`ac` SULF	ShortTurbo	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	+0.155s After	Unknown	Unknown	`ac` SULF	ShortTurbo	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	+0.165s After	Unknown	Unknown	`ac` SULF	ShortTurbo	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	+0.177s After	Unknown	Unknown	`ac` SULF	ShortTurbo	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	+0.191s After	Unknown	Unknown	`ac` SULF	ShortTurbo	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	+0.203s After	Unknown	Unknown	`ac` SULF	ShortTurbo	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	+0.223s After	Unknown	Unknown	`ac` SULF	ShortTurbo	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	+0.233s After	Unknown	Unknown	`ac` SULF	ShortTurbo	2026-05-16 05:12:29 UTC	View
Some User Lincoln Field (SULF)	+0.245s After	Unknown	Unknown	`ac` SULF	LongFast	2026-05-16 05:12:29 UTC	View

45

Total Receptions

1

Unique Gateways