Packet #18008220 Success

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

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	18008220
Mesh Packet ID:	`0x2432f8e4` Used for correlation across gateways
Timestamp:	2026-03-27 21:00:47 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: 36 bytes

Decoded: Yes

Decoded Data:

Latitude:	43.489690°
Longitude:	-80.451994°
Altitude:	336 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:	36 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` (36 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`	`36` 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`	`1774645246` 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`	`1774645247.351643` 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:	36 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 43.4896896, "longitude": -80.4519936, "altitude": 336, "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": 607320292, "rx_time": 1774645246, "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": "0d0000ec191500000cd018d00225feefc6692802586d7800800190b2831098010cb8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 434896896, "longitude_i": -804519936, "altitude": 336, "time": 1774645246, "location_source": "LOC_INTERNAL", "PDOP": 109, "ground_speed": 0, "ground_track": 33610000, "sats_in_view": 12, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (36 bytes)

0d0000ec191500000cd018d00225feefc6692802586d7800800190b2831098010cb8010d

Hex Analysis:

Size:	36 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 21:00:47 UTC	Current
Meshtastic 52b1 (DAY)	-0.360s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 21:00:46 UTC	View
Meshtastic 52b1 (DAY)	-0.330s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.319s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.308s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.296s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.285s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.273s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.262s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.250s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.239s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.228s Before	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.217s Before	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.206s Before	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.196s Before	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.184s Before	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.174s Before	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.164s Before	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.154s Before	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.143s Before	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.132s Before	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.120s Before	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.109s Before	Unknown	Unknown	`b1` DAY	MediumFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.097s Before	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.086s Before	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.075s Before	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.064s Before	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.053s Before	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.042s Before	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.032s Before	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.022s Before	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	-0.011s Before	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	+0.010s After	Unknown	Unknown	`b1` DAY	ShortFast	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	+0.021s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	+0.033s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	+0.045s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	+0.056s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	+0.068s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	+0.080s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	+0.092s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	+0.103s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	+0.115s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	+0.126s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	+0.137s After	Unknown	Unknown	`b1` DAY	ShortTurbo	2026-03-27 21:00:47 UTC	View
Meshtastic 52b1 (DAY)	+0.147s After	Unknown	Unknown	`b1` DAY	LongFast	2026-03-27 21:00:47 UTC	View

45

Total Receptions

1

Unique Gateways