Packet #17723760 Success

POSITION_APP packet from Klc Sensecap (klc2) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	17723760
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:	MediumFast
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:	MediumFast
Payload Type:	POSITION_APP
Hop Count:	Unknown / 3

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 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`	`MediumFast`
`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`	`1774590697.1286232` 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: MediumFast
✓ 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": "MediumFast", "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	MediumFast	2026-03-27 05:51:37 UTC	Current
Klc Sensecap (klc2)	-0.125s Before	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	-0.113s Before	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	-0.102s Before	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	-0.090s Before	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	-0.079s Before	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	-0.068s Before	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	-0.056s Before	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	-0.045s Before	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	-0.035s Before	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	-0.024s Before	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	-0.014s Before	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.013s After	Unknown	Unknown	`58` klc2	MediumFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.034s After	Unknown	Unknown	`58` klc2	MediumFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.044s After	Unknown	Unknown	`58` klc2	MediumFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.058s After	Unknown	Unknown	`58` klc2	MediumFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.069s After	Unknown	Unknown	`58` klc2	MediumFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.081s After	Unknown	Unknown	`58` klc2	MediumFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.092s After	Unknown	Unknown	`58` klc2	MediumFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.104s After	Unknown	Unknown	`58` klc2	MediumFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.116s After	Unknown	Unknown	`58` klc2	MediumFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.127s After	Unknown	Unknown	`58` klc2	MediumFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.139s After	Unknown	Unknown	`58` klc2	ShortFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.150s After	Unknown	Unknown	`58` klc2	ShortFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.165s After	Unknown	Unknown	`58` klc2	ShortFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.175s After	Unknown	Unknown	`58` klc2	ShortFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.186s After	Unknown	Unknown	`58` klc2	ShortFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.196s After	Unknown	Unknown	`58` klc2	ShortFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.206s After	Unknown	Unknown	`58` klc2	ShortFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.217s After	Unknown	Unknown	`58` klc2	ShortFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.229s After	Unknown	Unknown	`58` klc2	ShortFast	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.241s After	Unknown	Unknown	`58` klc2	ShortFast	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	ShortTurbo	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.274s After	Unknown	Unknown	`58` klc2	ShortTurbo	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.285s After	Unknown	Unknown	`58` klc2	ShortTurbo	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.297s After	Unknown	Unknown	`58` klc2	ShortTurbo	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.308s After	Unknown	Unknown	`58` klc2	ShortTurbo	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.319s After	Unknown	Unknown	`58` klc2	ShortTurbo	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.330s After	Unknown	Unknown	`58` klc2	ShortTurbo	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.341s After	Unknown	Unknown	`58` klc2	ShortTurbo	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.352s After	Unknown	Unknown	`58` klc2	ShortTurbo	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.362s After	Unknown	Unknown	`58` klc2	ShortTurbo	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.373s After	Unknown	Unknown	`58` klc2	ShortTurbo	2026-03-27 05:51:37 UTC	View
Klc Sensecap (klc2)	+0.384s After	Unknown	Unknown	`58` klc2	LongFast	2026-03-27 05:51:37 UTC	View

45

Total Receptions

1

Unique Gateways