Packet #17723750 Success

POSITION_APP packet from Klc Sensecap (klc2) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	17723750
Mesh Packet ID:	`0xcfeefd6f` Used for correlation across gateways
Timestamp:	2026-03-27 05:51:37 UTC
From Node:	Klc Sensecap (klc2)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Klc Sensecap (klc2)
Channel:	LongFast
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:	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
+ 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`	`!66203958` Node ID format
`channel_id`	`LongFast` Default public channel
`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`	`1774590692` 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`	`1774590697.015627` 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:	`!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": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1713387864, "to": 4294967295, "id": 3488546159, "rx_time": 1774590692, "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": "0d00401e1b15004026d4183725e41ac66928037800800100b80111", "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": 1774590692, "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)

0d00401e1b15004026d4183725e41ac66928037800800100b80111

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	Relay	Channel	Timestamp	Actions
Klc Sensecap (klc2) Primary	0.000s Reference	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	Current
Klc Sensecap (klc2)	-0.012s Before	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.011s After	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.023s After	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.034s After	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.045s After	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.057s After	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.068s After	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.078s After	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.089s After	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.099s After	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.113s After	Unknown	Unknown	`58` klc2	MediumFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.126s After	Unknown	Unknown	`58` klc2	MediumFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.147s After	Unknown	Unknown	`58` klc2	MediumFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.157s After	Unknown	Unknown	`58` klc2	MediumFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.171s After	Unknown	Unknown	`58` klc2	MediumFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.182s After	Unknown	Unknown	`58` klc2	MediumFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.194s After	Unknown	Unknown	`58` klc2	MediumFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.205s After	Unknown	Unknown	`58` klc2	MediumFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.217s After	Unknown	Unknown	`58` klc2	MediumFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.229s After	Unknown	Unknown	`58` klc2	MediumFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.240s After	Unknown	Unknown	`58` klc2	MediumFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.252s After	Unknown	Unknown	`58` klc2	ShortFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.263s After	Unknown	Unknown	`58` klc2	ShortFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.278s After	Unknown	Unknown	`58` klc2	ShortFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.288s After	Unknown	Unknown	`58` klc2	ShortFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.299s After	Unknown	Unknown	`58` klc2	ShortFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.309s After	Unknown	Unknown	`58` klc2	ShortFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.319s After	Unknown	Unknown	`58` klc2	ShortFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.330s After	Unknown	Unknown	`58` klc2	ShortFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.342s After	Unknown	Unknown	`58` klc2	ShortFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.354s After	Unknown	Unknown	`58` klc2	ShortFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.365s After	Unknown	Unknown	`58` klc2	ShortFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.376s After	Unknown	Unknown	`58` klc2	ShortTurbo	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.387s After	Unknown	Unknown	`58` klc2	ShortTurbo	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.398s After	Unknown	Unknown	`58` klc2	ShortTurbo	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.410s After	Unknown	Unknown	`58` klc2	ShortTurbo	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.421s After	Unknown	Unknown	`58` klc2	ShortTurbo	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.432s After	Unknown	Unknown	`58` klc2	ShortTurbo	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.443s After	Unknown	Unknown	`58` klc2	ShortTurbo	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.454s After	Unknown	Unknown	`58` klc2	ShortTurbo	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.465s After	Unknown	Unknown	`58` klc2	ShortTurbo	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.475s After	Unknown	Unknown	`58` klc2	ShortTurbo	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.486s After	Unknown	Unknown	`58` klc2	ShortTurbo	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.497s After	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View

45

Total Receptions

1

Unique Gateways