Packet #17812891 Success

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

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	17812891
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:	ShortFast
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:	ShortFast
Payload Type:	POSITION_APP
Hop Count:	Unknown / 3

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`	`!33677c50` Node ID format
`channel_id`	`ShortFast`
`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`	`1774606833.7930992` 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:	`!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": "ShortFast", "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	ShortFast	2026-03-27 10:20:33 UTC	Current
Meshtastic 7c50 (7c50)	-0.344s Before	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.333s Before	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.322s Before	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.311s Before	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.300s Before	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.279s Before	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.267s Before	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.247s Before	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.236s Before	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.224s Before	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.212s Before	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.200s Before	Unknown	Unknown	`50` 7c50	MediumFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.187s Before	Unknown	Unknown	`50` 7c50	MediumFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.176s Before	Unknown	Unknown	`50` 7c50	MediumFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.166s Before	Unknown	Unknown	`50` 7c50	MediumFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.155s Before	Unknown	Unknown	`50` 7c50	MediumFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.145s Before	Unknown	Unknown	`50` 7c50	MediumFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.135s Before	Unknown	Unknown	`50` 7c50	MediumFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.124s Before	Unknown	Unknown	`50` 7c50	MediumFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.114s Before	Unknown	Unknown	`50` 7c50	MediumFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.095s Before	Unknown	Unknown	`50` 7c50	MediumFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.083s Before	Unknown	Unknown	`50` 7c50	MediumFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.071s Before	Unknown	Unknown	`50` 7c50	ShortFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.058s Before	Unknown	Unknown	`50` 7c50	ShortFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.047s Before	Unknown	Unknown	`50` 7c50	ShortFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.035s Before	Unknown	Unknown	`50` 7c50	ShortFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.023s Before	Unknown	Unknown	`50` 7c50	ShortFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	-0.011s Before	Unknown	Unknown	`50` 7c50	ShortFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.011s After	Unknown	Unknown	`50` 7c50	ShortFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.022s After	Unknown	Unknown	`50` 7c50	ShortFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.032s After	Unknown	Unknown	`50` 7c50	ShortFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.043s After	Unknown	Unknown	`50` 7c50	ShortFast	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.053s After	Unknown	Unknown	`50` 7c50	ShortTurbo	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.064s After	Unknown	Unknown	`50` 7c50	ShortTurbo	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.074s After	Unknown	Unknown	`50` 7c50	ShortTurbo	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.086s After	Unknown	Unknown	`50` 7c50	ShortTurbo	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.098s After	Unknown	Unknown	`50` 7c50	ShortTurbo	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.110s After	Unknown	Unknown	`50` 7c50	ShortTurbo	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.121s After	Unknown	Unknown	`50` 7c50	ShortTurbo	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.133s After	Unknown	Unknown	`50` 7c50	ShortTurbo	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.144s After	Unknown	Unknown	`50` 7c50	ShortTurbo	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.156s After	Unknown	Unknown	`50` 7c50	ShortTurbo	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.168s After	Unknown	Unknown	`50` 7c50	ShortTurbo	2026-03-27 10:20:33 UTC	View
Meshtastic 7c50 (7c50)	+0.178s After	Unknown	Unknown	`50` 7c50	LongFast	2026-03-27 10:20:33 UTC	View

45

Total Receptions

1

Unique Gateways