Packet #2493113 Success

POSITION_APP packet from Meiyer (Meiy) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	2493113
Mesh Packet ID:	`0x2a55aa58` Used for correlation across gateways
Timestamp:	2025-08-15 03:20:07 UTC
From Node:	Meiyer (Meiy)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	GOC-Parkstad.nl (GOC)
Channel:	LongFast
RSSI:	-128 dBm
SNR:	-17.5 dBm
Hop Info:	7/7 hops Start: 7, Limit: 0

Payload Data

Protocol: POSITION_APP

Size: 27 bytes

Decoded: Yes

Decoded Data:

Latitude:	51.992986°
Longitude:	7.605453°
Altitude:	50 m
Precision:	16 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:	!4357860c
Channel:	LongFast
Payload Type:	POSITION_APP
Hop Count:	7 / 7

Privacy Summary

Exposure Level:
Broadcast

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

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 4 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!4357860c` 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`	`1127926124` 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`	Not set	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`7` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-128.0` dBm Signal strength at gateway	int32
`rx_snr`	`-17.50` dB Signal quality at gateway	float
`rx_time`	`1755220806` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	Not set	enum
`delayed`	Not set	enum
`channel`	Not set	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	Not set	uint32
`tx_after`	Not set	uint32
`timestamp`	`1755220807.6913364` 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

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Full GPS precision shared
⚠ Multi-hop path visible (7 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!4357860c`
Position Precision:	16 bits (~364.0m accuracy)
Position precision meters:	`364.0`
Signal Metrics:	RSSI: -128.0 dBm SNR: -17.50 dB

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": 51.9929856, "longitude": 7.6054528, "altitude": 50, "sats_in_view": null, "precision_bits": 16 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!4357860c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1127926124, "to": 4294967295, "id": 710257240, "rx_time": 1755220806, "rx_snr": -17.5, "rx_rssi": -128, "hop_limit": 0, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 0, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0080fd1e15008088041832252c8b9e6828017800800100b80110", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 519929856, "longitude_i": 76054528, "altitude": 50, "time": 1755220780, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 16, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (27 bytes)

0d0080fd1e15008088041832252c8b9e6828017800800100b80110

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	Hops	Channel	Timestamp	Actions
GOC-Parkstad.nl (GOC) Primary	0.000s Reference	-128.0 dBm	-17.50 dB	7	LongFast	2025-08-15 03:20:07	Current
Meshtastic gf30c (gf3c)	-8.866s Before	-139.0 dBm	-14.75 dB	4	LongFast	2025-08-15 03:19:58	View
Wateringweg, Haarlem (WaHa)	-8.483s Before	-113.0 dBm	-21.00 dB	4	LongFast	2025-08-15 03:19:59	View
HolRad (HlRd)	-7.353s Before	-128.0 dBm	-18.75 dB	5	LongFast	2025-08-15 03:20:00	View
Twistit 🇳🇱 (👽)	-7.218s Before	-125.0 dBm	-16.75 dB	5	LongFast	2025-08-15 03:20:00	View
Twistit 🇳🇱 (👽)	-7.195s Before	-125.0 dBm	-16.75 dB	5	LongFast	2025-08-15 03:20:00	View
Leimuiden - Bas (LMDN)	-7.082s Before	-122.0 dBm	-13.00 dB	5	LongFast	2025-08-15 03:20:00	View
MeshNet (GS-D)	-6.946s Before	Unknown	Unknown	6	LongFast	2025-08-15 03:20:00	View
MeshNet (GS-D)	-6.928s Before	Unknown	Unknown	6	LongFast	2025-08-15 03:20:00	View
MeshNet.NL (GS0D)	-6.811s Before	-116.0 dBm	-5.00 dB	5	LongFast	2025-08-15 03:20:00	View
MeshNet.NL (GS0D)	-6.796s Before	-116.0 dBm	-5.00 dB	5	LongFast	2025-08-15 03:20:00	View
No13 Oirschot (OIR1)	-6.772s Before	-124.0 dBm	-14.00 dB	5	LongFast	2025-08-15 03:20:00	View
PA3JH 🗼 (2.7.3) (3JH2)	-6.675s Before	-104.0 dBm	-4.25 dB	5	LongFast	2025-08-15 03:20:01	View
HLM Raaks Base 🏡🛜 (HLR1)	-5.915s Before	-119.0 dBm	-11.75 dB	5	LongFast	2025-08-15 03:20:01	View
MT Node Pey (PEY)	-5.288s Before	-104.0 dBm	Unknown	6	LongFast	2025-08-15 03:20:02	View
Colossus 1 (ccw1)	-4.834s Before	-123.0 dBm	-14.50 dB	6	LongFast	2025-08-15 03:20:02	View
Ams Zuidas Base (AZ4)	-4.505s Before	-104.0 dBm	-6.25 dB	6	LongFast	2025-08-15 03:20:03	View
Xebia 🌐🔌 Hilversum Bridge (XHB)	-2.984s Before	-89.0 dBm	11.75 dB	7	LongFast	2025-08-15 03:20:04	View
No13 Oirschot (OIR1)	+760.641s After	-124.0 dBm	-15.25 dB	7	LongFast	2025-08-15 03:32:48	View

19

Total Receptions

15

Unique Gateways