Packet #17733325 Success

POSITION_APP packet from Klc Sensecap (klc2) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	17733325
Mesh Packet ID:	`0x5988e5bc` Used for correlation across gateways
Timestamp:	2026-03-27 06:27:37 UTC
From Node:	Klc Sensecap (klc2)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Klc Sensecap (klc2)
Channel:	ShortFast
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/3 hops Start: 3, Limit: 3
Relay Node:	`58` klc2 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:	45.496730°
Longitude:	-73.569075°
Altitude:	55 m
Precision:	17 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:	!66203958
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
+ 2 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!66203958` 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`	`1713387864` 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`	`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`	`1774592852` 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`	`88` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1774592857.56816` 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
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
⚠ Full GPS precision shared

MQTT-Specific Fields

Gateway ID:	`!66203958`
Position Precision:	17 bits (~182.0m accuracy)
Position precision meters:	`182.0`
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": 45.4967296, "longitude": -73.5690752, "altitude": 55, "sats_in_view": null, "precision_bits": 17 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!66203958", "channel_id": "ShortFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1713387864, "to": 4294967295, "id": 1502143932, "rx_time": 1774592852, "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": 88, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00401e1b15004026d41837255423c66928037800800100b80111", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 454967296, "longitude_i": -735690752, "altitude": 55, "time": 1774592852, "location_source": "LOC_EXTERNAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 17, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (27 bytes)

0d00401e1b15004026d41837255423c66928037800800100b80111

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	Hops	Relay	Channel	Timestamp	Actions
Klc Sensecap (klc2) Primary	0.000s Reference	Unknown	Unknown	0	`58` klc2	ShortFast	2026-03-27 06:27:37 UTC	Current
Klc Sensecap (klc2)	-0.632s Before	Unknown	Unknown	0	`58` klc2	LongFast	2026-03-27 06:27:36 UTC	View
Klc Sensecap (klc2)	-0.598s Before	Unknown	Unknown	0	`58` klc2	LongFast	2026-03-27 06:27:36 UTC	View
Klc Sensecap (klc2)	-0.584s Before	Unknown	Unknown	0	`58` klc2	LongFast	2026-03-27 06:27:36 UTC	View
Klc Sensecap (klc2)	-0.563s Before	Unknown	Unknown	0	`58` klc2	LongFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	-0.542s Before	Unknown	Unknown	0	`58` klc2	LongFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	-0.523s Before	Unknown	Unknown	0	`58` klc2	LongFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	-0.512s Before	Unknown	Unknown	0	`58` klc2	LongFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	-0.501s Before	Unknown	Unknown	0	`58` klc2	LongFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	-0.490s Before	Unknown	Unknown	0	`58` klc2	LongFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	-0.479s Before	Unknown	Unknown	0	`58` klc2	LongFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	-0.469s Before	Unknown	Unknown	0	`58` klc2	LongFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	-0.456s Before	Unknown	Unknown	0	`58` klc2	MediumFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	-0.156s Before	Unknown	Unknown	0	`58` klc2	MediumFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	-0.143s Before	Unknown	Unknown	0	`58` klc2	MediumFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	-0.123s Before	Unknown	Unknown	0	`58` klc2	MediumFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	-0.109s Before	Unknown	Unknown	0	`58` klc2	MediumFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	-0.097s Before	Unknown	Unknown	0	`58` klc2	MediumFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	-0.087s Before	Unknown	Unknown	0	`58` klc2	MediumFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	-0.076s Before	Unknown	Unknown	0	`58` klc2	MediumFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	-0.066s Before	Unknown	Unknown	0	`58` klc2	MediumFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	-0.055s Before	Unknown	Unknown	0	`58` klc2	MediumFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	-0.045s Before	Unknown	Unknown	0	`58` klc2	MediumFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	-0.033s Before	Unknown	Unknown	0	`58` klc2	ShortFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	-0.023s Before	Unknown	Unknown	0	`58` klc2	ShortFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	-0.012s Before	Unknown	Unknown	0	`58` klc2	ShortFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	+0.012s After	Unknown	Unknown	0	`58` klc2	ShortFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	+0.029s After	Unknown	Unknown	0	`58` klc2	ShortFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	+0.041s After	Unknown	Unknown	0	`58` klc2	ShortFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	+0.052s After	Unknown	Unknown	0	`58` klc2	ShortFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	+0.064s After	Unknown	Unknown	0	`58` klc2	ShortFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	+0.076s After	Unknown	Unknown	0	`58` klc2	ShortFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	+0.088s After	Unknown	Unknown	0	`58` klc2	ShortFast	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	+0.099s After	Unknown	Unknown	0	`58` klc2	ShortTurbo	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	+0.109s After	Unknown	Unknown	0	`58` klc2	ShortTurbo	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	+0.120s After	Unknown	Unknown	0	`58` klc2	ShortTurbo	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	+0.132s After	Unknown	Unknown	0	`58` klc2	ShortTurbo	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	+0.142s After	Unknown	Unknown	0	`58` klc2	ShortTurbo	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	+0.153s After	Unknown	Unknown	0	`58` klc2	ShortTurbo	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	+0.163s After	Unknown	Unknown	0	`58` klc2	ShortTurbo	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	+0.174s After	Unknown	Unknown	0	`58` klc2	ShortTurbo	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	+0.186s After	Unknown	Unknown	0	`58` klc2	ShortTurbo	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	+0.198s After	Unknown	Unknown	0	`58` klc2	ShortTurbo	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	+0.210s After	Unknown	Unknown	0	`58` klc2	ShortTurbo	2026-03-27 06:27:37 UTC	View
Klc Sensecap (klc2)	+0.224s After	Unknown	Unknown	0	`58` klc2	LongFast	2026-03-27 06:27:37 UTC	View
DIR Rooftop (DIR)	+8.282s After	-106.0 dBm	-16.25 dB	3	`d2`	LongFast	2026-03-27 06:27:45 UTC	View

46

Total Receptions

2

Unique Gateways