Packet #17810507 Success

POSITION_APP packet from Seri Base d120 (SRB) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	17810507
Mesh Packet ID:	`0x14646f8b` Used for correlation across gateways
Timestamp:	2026-03-27 10:13:35 UTC
From Node:	Seri Base d120 (SRB)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Seri Base d120 (SRB)
Channel:	ShortTurbo
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/7 hops Start: 7, Limit: 7
Relay Node:	`20` SRB 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:	43.417600°
Longitude:	-80.537190°
Altitude:	340 m
Precision:	15 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:	!16ced120
Channel:	ShortTurbo
Payload Type:	POSITION_APP
Hop Count:	Unknown / 7

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortTurbo
+ 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`	`!16ced120` Node ID format
`channel_id`	`ShortTurbo`
`packet`	`MeshPacket` (28 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`382652704` 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`	`1774606413` 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`	`32` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1774606415.0296493` 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: ShortTurbo
✓ Gateway node ID tracked
✓ Reduced position precision: ~729.0m 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:	`!16ced120`
Position Precision:	15 bits (~729.0m accuracy)
Position precision meters:	`729.0`
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": 43.4176, "longitude": -80.5371904, "altitude": 340, "sats_in_view": null, "precision_bits": 15 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!16ced120", "channel_id": "ShortTurbo", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 382652704, "to": 4294967295, "id": 342126475, "rx_time": 1774606413, "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": 32, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000e119150000ffcf18d402254d58c66928017800800100b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 434176000, "longitude_i": -805371904, "altitude": 340, "time": 1774606413, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (28 bytes)

0d0000e119150000ffcf18d402254d58c66928017800800100b8010f

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
Seri Base d120 (SRB) Primary	0.000s Reference	Unknown	Unknown	`20` SRB	ShortTurbo	2026-03-27 10:13:35 UTC	Current
Seri Base d120 (SRB)	-0.551s Before	Unknown	Unknown	`20` SRB	LongFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.518s Before	Unknown	Unknown	`20` SRB	LongFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.507s Before	Unknown	Unknown	`20` SRB	LongFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.489s Before	Unknown	Unknown	`20` SRB	LongFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.470s Before	Unknown	Unknown	`20` SRB	LongFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.459s Before	Unknown	Unknown	`20` SRB	LongFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.443s Before	Unknown	Unknown	`20` SRB	LongFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.432s Before	Unknown	Unknown	`20` SRB	LongFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.422s Before	Unknown	Unknown	`20` SRB	LongFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.413s Before	Unknown	Unknown	`20` SRB	LongFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.402s Before	Unknown	Unknown	`20` SRB	LongFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.391s Before	Unknown	Unknown	`20` SRB	MediumFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.375s Before	Unknown	Unknown	`20` SRB	MediumFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.364s Before	Unknown	Unknown	`20` SRB	MediumFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.352s Before	Unknown	Unknown	`20` SRB	MediumFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.340s Before	Unknown	Unknown	`20` SRB	MediumFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.327s Before	Unknown	Unknown	`20` SRB	MediumFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.315s Before	Unknown	Unknown	`20` SRB	MediumFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.303s Before	Unknown	Unknown	`20` SRB	MediumFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.292s Before	Unknown	Unknown	`20` SRB	MediumFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.280s Before	Unknown	Unknown	`20` SRB	MediumFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.268s Before	Unknown	Unknown	`20` SRB	MediumFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.257s Before	Unknown	Unknown	`20` SRB	ShortFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.246s Before	Unknown	Unknown	`20` SRB	ShortFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.235s Before	Unknown	Unknown	`20` SRB	ShortFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.224s Before	Unknown	Unknown	`20` SRB	ShortFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.214s Before	Unknown	Unknown	`20` SRB	ShortFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.203s Before	Unknown	Unknown	`20` SRB	ShortFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.192s Before	Unknown	Unknown	`20` SRB	ShortFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.182s Before	Unknown	Unknown	`20` SRB	ShortFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.170s Before	Unknown	Unknown	`20` SRB	ShortFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.157s Before	Unknown	Unknown	`20` SRB	ShortFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.145s Before	Unknown	Unknown	`20` SRB	ShortFast	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.135s Before	Unknown	Unknown	`20` SRB	ShortTurbo	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.106s Before	Unknown	Unknown	`20` SRB	ShortTurbo	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.090s Before	Unknown	Unknown	`20` SRB	ShortTurbo	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.073s Before	Unknown	Unknown	`20` SRB	ShortTurbo	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.057s Before	Unknown	Unknown	`20` SRB	ShortTurbo	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	-0.032s Before	Unknown	Unknown	`20` SRB	ShortTurbo	2026-03-27 10:13:34 UTC	View
Seri Base d120 (SRB)	+0.027s After	Unknown	Unknown	`20` SRB	ShortTurbo	2026-03-27 10:13:35 UTC	View
Seri Base d120 (SRB)	+0.049s After	Unknown	Unknown	`20` SRB	ShortTurbo	2026-03-27 10:13:35 UTC	View
Seri Base d120 (SRB)	+0.068s After	Unknown	Unknown	`20` SRB	ShortTurbo	2026-03-27 10:13:35 UTC	View
Seri Base d120 (SRB)	+0.081s After	Unknown	Unknown	`20` SRB	ShortTurbo	2026-03-27 10:13:35 UTC	View
Seri Base d120 (SRB)	+0.093s After	Unknown	Unknown	`20` SRB	LongFast	2026-03-27 10:13:35 UTC	View

45

Total Receptions

1

Unique Gateways