Packet #17781307 Success

POSITION_APP packet from Mechanicus Cadia (M3) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	17781307
Mesh Packet ID:	`0x3bb1f9d9` Used for correlation across gateways
Timestamp:	2026-03-27 09:02:25 UTC
From Node:	Mechanicus Cadia (M3)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Mechanicus Cadia (M3)
Channel:	LongFast
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/7 hops Start: 7, Limit: 7
Relay Node:	`9c` M3 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:	49.922867°
Longitude:	-97.149747°
Altitude:	230 m
Precision:	18 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:	!4359649c
Channel:	LongFast
Payload Type:	POSITION_APP
Hop Count:	Unknown / 7

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 2 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!4359649c` 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`	`1129931932` 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`	`7` Remaining hops allowed	uint32
`hop_start`	`7` 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`	`1774602143` 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`	`156` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1774602145.438949` 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
✓ 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
⚠ Full GPS precision shared

MQTT-Specific Fields

Gateway ID:	`!4359649c`
Position Precision:	18 bits (~91.0m accuracy)
Position precision meters:	`91.0`
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": 49.9228672, "longitude": -97.1497472, "altitude": 230, "sats_in_view": null, "precision_bits": 18 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!4359649c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1129931932, "to": 4294967295, "id": 1001519577, "rx_time": 1774602143, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 7, "hop_start": 7, "via_mqtt": false, "want_ack": false, "priority": 10, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 156, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00a0c11d15002018c618e601259f47c66928017800800100b80112", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 499228672, "longitude_i": -971497472, "altitude": 230, "time": 1774602143, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 18, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (28 bytes)

0d00a0c11d15002018c618e601259f47c66928017800800100b80112

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
Mechanicus Cadia (M3) Primary	0.000s Reference	Unknown	Unknown	`9c` M3	LongFast	2026-03-27 09:02:25 UTC	Current
Mechanicus Cadia (M3)	-1.198s Before	Unknown	Unknown	`9c` M3	LongFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-1.164s Before	Unknown	Unknown	`9c` M3	LongFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-1.145s Before	Unknown	Unknown	`9c` M3	LongFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-1.122s Before	Unknown	Unknown	`9c` M3	LongFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-1.101s Before	Unknown	Unknown	`9c` M3	LongFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-1.053s Before	Unknown	Unknown	`9c` M3	LongFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-1.028s Before	Unknown	Unknown	`9c` M3	LongFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-1.013s Before	Unknown	Unknown	`9c` M3	LongFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-0.993s Before	Unknown	Unknown	`9c` M3	LongFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-0.976s Before	Unknown	Unknown	`9c` M3	LongFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-0.959s Before	Unknown	Unknown	`9c` M3	LongFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-0.939s Before	Unknown	Unknown	`9c` M3	MediumFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-0.924s Before	Unknown	Unknown	`9c` M3	MediumFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-0.888s Before	Unknown	Unknown	`9c` M3	MediumFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-0.868s Before	Unknown	Unknown	`9c` M3	MediumFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-0.837s Before	Unknown	Unknown	`9c` M3	MediumFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-0.817s Before	Unknown	Unknown	`9c` M3	MediumFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-0.792s Before	Unknown	Unknown	`9c` M3	MediumFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-0.768s Before	Unknown	Unknown	`9c` M3	MediumFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-0.726s Before	Unknown	Unknown	`9c` M3	MediumFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-0.705s Before	Unknown	Unknown	`9c` M3	MediumFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-0.650s Before	Unknown	Unknown	`9c` M3	MediumFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-0.612s Before	Unknown	Unknown	`9c` M3	ShortFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-0.566s Before	Unknown	Unknown	`9c` M3	ShortFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-0.533s Before	Unknown	Unknown	`9c` M3	ShortFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-0.485s Before	Unknown	Unknown	`9c` M3	ShortFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-0.468s Before	Unknown	Unknown	`9c` M3	ShortFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-0.450s Before	Unknown	Unknown	`9c` M3	ShortFast	2026-03-27 09:02:24 UTC	View
Mechanicus Cadia (M3)	-0.436s Before	Unknown	Unknown	`9c` M3	ShortFast	2026-03-27 09:02:25 UTC	View
Mechanicus Cadia (M3)	-0.417s Before	Unknown	Unknown	`9c` M3	ShortFast	2026-03-27 09:02:25 UTC	View
Mechanicus Cadia (M3)	-0.402s Before	Unknown	Unknown	`9c` M3	ShortFast	2026-03-27 09:02:25 UTC	View
Mechanicus Cadia (M3)	-0.389s Before	Unknown	Unknown	`9c` M3	ShortFast	2026-03-27 09:02:25 UTC	View
Mechanicus Cadia (M3)	-0.374s Before	Unknown	Unknown	`9c` M3	ShortFast	2026-03-27 09:02:25 UTC	View
Mechanicus Cadia (M3)	-0.362s Before	Unknown	Unknown	`9c` M3	ShortTurbo	2026-03-27 09:02:25 UTC	View
Mechanicus Cadia (M3)	-0.348s Before	Unknown	Unknown	`9c` M3	ShortTurbo	2026-03-27 09:02:25 UTC	View
Mechanicus Cadia (M3)	-0.330s Before	Unknown	Unknown	`9c` M3	ShortTurbo	2026-03-27 09:02:25 UTC	View
Mechanicus Cadia (M3)	-0.313s Before	Unknown	Unknown	`9c` M3	ShortTurbo	2026-03-27 09:02:25 UTC	View
Mechanicus Cadia (M3)	-0.300s Before	Unknown	Unknown	`9c` M3	ShortTurbo	2026-03-27 09:02:25 UTC	View
Mechanicus Cadia (M3)	-0.285s Before	Unknown	Unknown	`9c` M3	ShortTurbo	2026-03-27 09:02:25 UTC	View
Mechanicus Cadia (M3)	-0.263s Before	Unknown	Unknown	`9c` M3	ShortTurbo	2026-03-27 09:02:25 UTC	View
Mechanicus Cadia (M3)	-0.250s Before	Unknown	Unknown	`9c` M3	ShortTurbo	2026-03-27 09:02:25 UTC	View
Mechanicus Cadia (M3)	-0.228s Before	Unknown	Unknown	`9c` M3	ShortTurbo	2026-03-27 09:02:25 UTC	View
Mechanicus Cadia (M3)	-0.176s Before	Unknown	Unknown	`9c` M3	ShortTurbo	2026-03-27 09:02:25 UTC	View
Mechanicus Cadia (M3)	-0.020s Before	Unknown	Unknown	`9c` M3	ShortTurbo	2026-03-27 09:02:25 UTC	View

45

Total Receptions

1

Unique Gateways