Packet #17997709 Success

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

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	17997709
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:	LongFast
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:	LongFast
Payload Type:	POSITION_APP
Hop Count:	Unknown / 7

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 2 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!cd7652b1` Node ID format
`channel_id`	`LongFast` Default public channel
`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`	`1774643124.5606627` 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
✓ Reduced position precision: ~2900.0m accuracy
✓ 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

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": "LongFast", "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	LongFast	2026-03-27 20:25:24 UTC	Current
Meshtastic 52b1 (DAY)	-0.142s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.116s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.105s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.094s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.082s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.071s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.059s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.042s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.024s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	-0.012s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.013s After	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.027s After	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.040s After	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.053s After	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.066s After	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.082s After	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.095s After	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.108s After	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.122s After	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.136s After	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.149s After	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.162s After	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.176s After	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.189s After	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.205s After	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.218s After	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.231s After	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.244s After	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.256s After	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.269s After	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.283s After	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.298s After	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.321s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.344s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.358s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.371s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.385s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.397s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 20:25:24 UTC	View
Meshtastic 52b1 (DAY)	+0.550s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 20:25:25 UTC	View
Meshtastic 52b1 (DAY)	+0.563s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 20:25:25 UTC	View
Meshtastic 52b1 (DAY)	+0.576s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 20:25:25 UTC	View
Meshtastic 52b1 (DAY)	+0.591s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 20:25:25 UTC	View
Meshtastic 52b1 (DAY)	+0.605s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 20:25:25 UTC	View
Meshtastic 52b1 (DAY)	+0.620s After	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 20:25:25 UTC	View

45

Total Receptions

1

Unique Gateways