Packet #17997722 Success

POSITION_APP packet from Meshtastic 52b1 (DAY) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	17997722
Mesh Packet ID:	`0x3a6b40b6` Used for correlation across gateways
Timestamp:	2026-03-27 20:25:24 UTC
From Node:	Meshtastic 52b1 (DAY)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Meshtastic 52b1 (DAY)
Channel:	ShortFast
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/7 hops Start: 7, Limit: 7
Relay Node:	`b1` DAY 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: 37 bytes

Decoded: Yes

Decoded Data:

Latitude:	43.489690°
Longitude:	-80.451994°
Altitude:	328 m
Satellites:	12
Precision:	13 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:	37 bytes
Gateway:	!cd7652b1
Channel:	ShortFast
Payload Type:	POSITION_APP
Hop Count:	Unknown / 7

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortFast
+ 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`	`!cd7652b1` Node ID format
`channel_id`	`ShortFast`
`packet`	`MeshPacket` (37 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3447083697` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`37` 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`	`1774643123` 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`	`177` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1774643124.7365642` 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
✓ Reduced position precision: ~2900.0m 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:	`!cd7652b1`
Position Precision:	13 bits (~2900.0m accuracy)
Position precision meters:	`2900.0`
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:	37 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 43.4896896, "longitude": -80.4519936, "altitude": 328, "sats_in_view": 12, "precision_bits": 13 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!cd7652b1", "channel_id": "ShortFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3447083697, "to": 4294967295, "id": 980107446, "rx_time": 1774643123, "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": 177, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000ec191500000cd018c80225b3e7c669280258910178008001c88b800a98010cb8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 434896896, "longitude_i": -804519936, "altitude": 328, "time": 1774643123, "location_source": "LOC_INTERNAL", "PDOP": 145, "ground_speed": 0, "ground_track": 20973000, "sats_in_view": 12, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (37 bytes)

0d0000ec191500000cd018c80225b3e7c669280258910178008001c88b800a98010cb8010d

Hex Analysis:

Size:	37 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
Meshtastic 52b1 (DAY) Primary	0.000s Reference	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 20:25:24 UTC	Current
Meshtastic 52b1 (DAY)	-0.318s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.292s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.281s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.269s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.258s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.247s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.235s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.218s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.199s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.188s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.176s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.163s Before	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.149s Before	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.136s Before	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.123s Before	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.110s Before	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.094s Before	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.081s Before	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.068s Before	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.054s Before	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.040s Before	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.027s Before	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.014s Before	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.013s After	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.029s After	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.042s After	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.055s After	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.068s After	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.080s After	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.093s After	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.107s After	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.122s After	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.145s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.169s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.182s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.195s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.209s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.221s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.374s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 20:25:25 UTC	View
Meshtastic 52b1 (DAY)	+0.387s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 20:25:25 UTC	View
Meshtastic 52b1 (DAY)	+0.400s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 20:25:25 UTC	View
Meshtastic 52b1 (DAY)	+0.415s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 20:25:25 UTC	View
Meshtastic 52b1 (DAY)	+0.429s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 20:25:25 UTC	View
Meshtastic 52b1 (DAY)	+0.444s After	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:25 UTC	View

45

Total Receptions

1

Unique Gateways