Packet #2686918 Success

POSITION_APP packet from PD1RB-QTH (1RBH) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	2686918
Mesh Packet ID:	`0x7a2116bb` Used for correlation across gateways
Timestamp:	2025-08-16 13:25:35 UTC
From Node:	PD1RB-QTH (1RBH)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Meshtastic 5578 (5578)
Channel:	LongFast
RSSI:	-134 dBm
SNR:	-16.75 dBm
Hop Info:	1/3 hops Start: 3, Limit: 2

Payload Data

Protocol: POSITION_APP

Size: 22 bytes

Decoded: Yes

Decoded Data:

Latitude:	52.395009°
Longitude:	5.171573°
Precision:	32 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:	22 bytes
Gateway:	!a4505578
Channel:	LongFast
Payload Type:	POSITION_APP
Hop Count:	1 / 3

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`	`!a4505578` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (22 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3677292404` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`22` bytes	size
`hop_limit`	`2` Remaining hops allowed	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-134.0` dBm Signal strength at gateway	int32
`rx_snr`	`-16.75` dB Signal quality at gateway	float
`rx_time`	`1746753503` 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`	`206` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1755343535.0744283` 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 (1 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!a4505578`
Position Precision:	32 bits (~1.0m accuracy)
Position precision meters:	`1.0`
Signal Metrics:	RSSI: -134.0 dBm SNR: -16.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	POSITION_APP
Size:	22 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 52.3950085, "longitude": 5.1715728, "altitude": 0, "sats_in_view": null, "precision_bits": 32 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!a4505578", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3677292404, "to": 4294967295, "id": 2048988859, "rx_time": 1746753503, "rx_snr": -16.75, "rx_rssi": -134, "hop_limit": 2, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 206, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d05d83a1f15901e1503180028037800800100b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 523950085, "longitude_i": 51715728, "altitude": 0, "location_source": "LOC_EXTERNAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 32, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (22 bytes)

0d05d83a1f15901e1503180028037800800100b80120

Hex Analysis:

Size:	22 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
Meshtastic 5578 (5578) Primary	0.000s Reference	-134.0 dBm	-16.75 dB	1	LongFast	2025-08-16 13:25:35	Current
ALM-BC-Satisfaction (Ally)	-153.323s Before	-108.0 dBm	-9.25 dB	0	LongFast	2025-08-16 13:23:01	View
Meshtastic 9e2c (9e2c)	-0.472s Before	-118.0 dBm	-8.00 dB	1	LongFast	2025-08-16 13:25:34	View
Y0sh1 TD (Y0TD)	-0.159s Before	Unknown	Unknown	2	LongFast	2025-08-16 13:25:34	View
Destiny Long 🏠🔌🌐🛰️ (Long)	-0.024s Before	-135.0 dBm	-11.00 dB	1	LongFast	2025-08-16 13:25:35	View
Joozt - Rijen 🏠 (JZT)	-0.013s Before	-123.0 dBm	-13.00 dB	1	LongFast	2025-08-16 13:25:35	View
Y0sh1 Base (Y0v2)	+0.245s After	-143.0 dBm	-18.50 dB	1	LongFast	2025-08-16 13:25:35	View
HolRad (HlRd)	+0.255s After	-128.0 dBm	-18.25 dB	1	LongFast	2025-08-16 13:25:35	View
Colossus 1 (ccw1)	+0.953s After	-114.0 dBm	-5.50 dB	2	LongFast	2025-08-16 13:25:36	View
MeshNet (GS-D)	+1.088s After	Unknown	Unknown	3	LongFast	2025-08-16 13:25:36	View
MeshNet (GS-D)	+1.101s After	Unknown	Unknown	3	LongFast	2025-08-16 13:25:36	View
MeshNet.NL (GS0D)	+1.126s After	-112.0 dBm	-2.50 dB	2	LongFast	2025-08-16 13:25:36	View
MeshNet.NL (GS0D)	+1.144s After	-112.0 dBm	-2.50 dB	2	LongFast	2025-08-16 13:25:36	View
Ams Zuid (AMS)	+1.361s After	-95.0 dBm	7.00 dB	2	LongFast	2025-08-16 13:25:36	View
Leimuiden - Bas (LMDN)	+1.739s After	-122.0 dBm	-11.50 dB	2	LongFast	2025-08-16 13:25:36	View
NL-3545-Knalliebar (KNB0)	+1.924s After	-111.0 dBm	1.25 dB	2	LongFast	2025-08-16 13:25:36	View
HLM Raaks Base 🏡🛜 (HLR1)	+2.543s After	-79.0 dBm	6.25 dB	2	LongFast	2025-08-16 13:25:37	View
Meshtastic gf30c (gf3c)	+2.812s After	-130.0 dBm	-7.00 dB	3	LongFast	2025-08-16 13:25:37	View
Ams Zuidas Base (AZ4)	+5.126s After	-112.0 dBm	-12.25 dB	3	LongFast	2025-08-16 13:25:40	View
Xebia 🌐🔌 Hilversum Bridge (XHB)	+8.148s After	-85.0 dBm	12.75 dB	3	LongFast	2025-08-16 13:25:43	View

20

Total Receptions

18

Unique Gateways