Packet #17812871 Success

POSITION_APP packet from Meshtastic 7c50 (7c50) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	17812871
Mesh Packet ID:	`0x08041a6b` Used for correlation across gateways
Timestamp:	2026-03-27 10:20:33 UTC
From Node:	Meshtastic 7c50 (7c50)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Meshtastic 7c50 (7c50)
Channel:	LongFast
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/3 hops Start: 3, Limit: 3
Relay Node:	`50` 7c50 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: 28 bytes

Decoded: Yes

Decoded Data:

Latitude:	43.529011°
Longitude:	-80.386458°
Altitude:	337 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:	28 bytes
Gateway:	!33677c50
Channel:	LongFast
Payload Type:	POSITION_APP
Hop Count:	Unknown / 3

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 2 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!33677c50` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (28 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`862420048` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`28` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`3` 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`	`1774606832` 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`	`80` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1774606833.557598` 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)
✓ 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
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers

MQTT-Specific Fields

Gateway ID:	`!33677c50`
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:	28 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 43.5290112, "longitude": -80.3864576, "altitude": 337, "sats_in_view": null, "precision_bits": 14 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!33677c50", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 862420048, "to": 4294967295, "id": 134486635, "rx_time": 1774606832, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 3, "hop_start": 3, "via_mqtt": false, "want_ack": false, "priority": 10, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 80, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000f21915000016d018d10225f059c66928017800800100b8010e", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 435290112, "longitude_i": -803864576, "altitude": 337, "time": 1774606832, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 14, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (28 bytes)

0d0000f21915000016d018d10225f059c66928017800800100b8010e

Hex Analysis:

Size:	28 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
Meshtastic 7c50 (7c50) Primary	0.000s Reference	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	Current
Meshtastic 7c50 (7c50)	-0.108s Before	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.097s Before	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.086s Before	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.076s Before	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.064s Before	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.043s Before	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.032s Before	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.012s Before	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.012s After	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.024s After	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.036s After	Unknown	Unknown	`50` 7c50	MediumFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.048s After	Unknown	Unknown	`50` 7c50	MediumFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.059s After	Unknown	Unknown	`50` 7c50	MediumFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.070s After	Unknown	Unknown	`50` 7c50	MediumFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.080s After	Unknown	Unknown	`50` 7c50	MediumFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.090s After	Unknown	Unknown	`50` 7c50	MediumFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.100s After	Unknown	Unknown	`50` 7c50	MediumFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.111s After	Unknown	Unknown	`50` 7c50	MediumFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.122s After	Unknown	Unknown	`50` 7c50	MediumFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.140s After	Unknown	Unknown	`50` 7c50	MediumFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.152s After	Unknown	Unknown	`50` 7c50	MediumFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.165s After	Unknown	Unknown	`50` 7c50	ShortFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.177s After	Unknown	Unknown	`50` 7c50	ShortFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.189s After	Unknown	Unknown	`50` 7c50	ShortFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.201s After	Unknown	Unknown	`50` 7c50	ShortFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.213s After	Unknown	Unknown	`50` 7c50	ShortFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.225s After	Unknown	Unknown	`50` 7c50	ShortFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.236s After	Unknown	Unknown	`50` 7c50	ShortFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.246s After	Unknown	Unknown	`50` 7c50	ShortFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.257s After	Unknown	Unknown	`50` 7c50	ShortFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.268s After	Unknown	Unknown	`50` 7c50	ShortFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.278s After	Unknown	Unknown	`50` 7c50	ShortFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.289s After	Unknown	Unknown	`50` 7c50	ShortTurbo	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.299s After	Unknown	Unknown	`50` 7c50	ShortTurbo	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.310s After	Unknown	Unknown	`50` 7c50	ShortTurbo	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.322s After	Unknown	Unknown	`50` 7c50	ShortTurbo	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.333s After	Unknown	Unknown	`50` 7c50	ShortTurbo	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.345s After	Unknown	Unknown	`50` 7c50	ShortTurbo	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.357s After	Unknown	Unknown	`50` 7c50	ShortTurbo	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.368s After	Unknown	Unknown	`50` 7c50	ShortTurbo	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.380s After	Unknown	Unknown	`50` 7c50	ShortTurbo	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.391s After	Unknown	Unknown	`50` 7c50	ShortTurbo	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.403s After	Unknown	Unknown	`50` 7c50	ShortTurbo	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.414s After	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View

45

Total Receptions

1

Unique Gateways