Packet #12806312 Success

POSITION_APP packet from Pedrezuela Fazer (Fzr) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	12806312
Mesh Packet ID:	`0xc6de2aaa` Used for correlation across gateways
Timestamp:	2025-09-29 19:28:46 UTC
From Node:	Pedrezuela Fazer (Fzr)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Arganda C191 🌐 (ARG)
Channel:	MediumSlow
RSSI:	-115 dBm
SNR:	-7.75 dBm
Hop Info:	2/5 hops Start: 5, Limit: 3

Payload Data

Protocol: POSITION_APP

Size: 34 bytes

Decoded: Yes

Decoded Data:

Latitude:	40.743731°
Longitude:	-3.611034°
Altitude:	848 m
Satellites:	8
Precision:	15 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:	34 bytes
Gateway:	!9ee79500
Channel:	MediumSlow
Payload Type:	POSITION_APP
Hop Count:	2 / 5

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumSlow
+ 2 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!9ee79500` Node ID format
`channel_id`	`MediumSlow`
`packet`	`MeshPacket` (34 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1129797380` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`34` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-115.0` dBm Signal strength at gateway	int32
`rx_snr`	`-7.75` dB Signal quality at gateway	float
`rx_time`	`1759174125` 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`	`176` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1759174126.605516` 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: MediumSlow
✓ Gateway node ID tracked
✓ Reduced position precision: ~729.0m accuracy

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!9ee79500`
Position Precision:	15 bits (~729.0m accuracy)
Position precision meters:	`729.0`
Signal Metrics:	RSSI: -115.0 dBm SNR: -7.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	POSITION_APP
Size:	34 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 40.7437312, "longitude": -3.6110336, "altitude": 848, "sats_in_view": 8, "precision_bits": 15 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!9ee79500", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1129797380, "to": 4294967295, "id": 3336448682, "rx_time": 1759174125, "rx_snr": -7.75, "rx_rssi": -115, "hop_limit": 3, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 176, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00004918150000d9fd18d00625eaddda68280258b7017800800100980108b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407437312, "longitude_i": -36110336, "altitude": 848, "time": 1759174122, "location_source": "LOC_INTERNAL", "PDOP": 183, "ground_speed": 0, "ground_track": 0, "sats_in_view": 8, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (34 bytes)

0d00004918150000d9fd18d00625eaddda68280258b7017800800100980108b8010f

Hex Analysis:

Size:	34 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
Arganda C191 🌐 (ARG) Primary	0.000s Reference	-115.0 dBm	-7.75 dB	2	MediumSlow	2025-09-29 19:28:46	Current
Venturada2🗼🌐☀️ (Vb2)	-1.010s Before	-84.0 dBm	7.00 dB	1	MediumSlow	2025-09-29 19:28:45	View
Perseo 📡🌐☀ (nvm1)	-0.420s Before	-92.0 dBm	-5.25 dB	2	MediumSlow	2025-09-29 19:28:46	View
Villalbilla02 (VBV2)	-0.402s Before	-115.0 dBm	-5.00 dB	1	MediumSlow	2025-09-29 19:28:46	View
Will - Azuqueca (WAzq)	+0.128s After	-108.0 dBm	-1.50 dB	2	MediumSlow	2025-09-29 19:28:46	View
Mec Rocket Meco (MRM)	+0.156s After	-110.0 dBm	-9.25 dB	2	MediumSlow	2025-09-29 19:28:46	View
Machu Pichu (MaPi)	+0.426s After	-93.0 dBm	-4.50 dB	2	MediumSlow	2025-09-29 19:28:47	View
[TLG] 📡🌐🔋🔌 (tlg0)	+0.474s After	-110.0 dBm	-6.25 dB	2	MediumSlow	2025-09-29 19:28:47	View
Rodashtastic🗼🌐 (RDSt)	+0.497s After	-115.0 dBm	-7.25 dB	2	MediumSlow	2025-09-29 19:28:47	View
Kenobi23 QTH (5aec)	+0.584s After	-109.0 dBm	-7.25 dB	2	MediumSlow	2025-09-29 19:28:47	View
TO_Cala_Base2🗼🌐☀️ (33C8)	+1.099s After	-109.0 dBm	-2.00 dB	3	MediumSlow	2025-09-29 19:28:47	View
Kenobi23 movil (5672)	+1.520s After	-54.0 dBm	8.75 dB	3	MediumSlow	2025-09-29 19:28:48	View
Naranjo C191 🌐 (FNL)	+1.756s After	-97.0 dBm	-7.25 dB	3	MediumSlow	2025-09-29 19:28:48	View
SkG@Home 📡🌐 (SkGH)	+2.081s After	-123.0 dBm	-13.75 dB	3	MediumSlow	2025-09-29 19:28:48	View
🌐Charly Unid Movil🛰 (C181)	+2.443s After	-112.0 dBm	-6.75 dB	3	MediumSlow	2025-09-29 19:28:49	View
Meshtastic 1760 (1760)	+2.914s After	-116.0 dBm	2.00 dB	4	MediumSlow	2025-09-29 19:28:49	View
Meshtastic 18a4 (18a4)	+2.940s After	-121.0 dBm	-9.50 dB	4	MediumSlow	2025-09-29 19:28:49	View
Meshtastic c498📡🌐 (C498)	+3.079s After	-114.0 dBm	-9.50 dB	4	MediumSlow	2025-09-29 19:28:49	View
EA4HTS Ventas 🗼🇪🇸 (HTSv)	+3.125s After	-111.0 dBm	-3.50 dB	4	MediumSlow	2025-09-29 19:28:49	View
Meshtastic 53fc (53fc)	+3.196s After	-120.0 dBm	-7.75 dB	3	MediumSlow	2025-09-29 19:28:49	View
Void🌀 (V01d)	+3.605s After	-53.0 dBm	8.00 dB	4	MediumSlow	2025-09-29 19:28:50	View
Malasaña Solar ☀️ (🌇)	+3.745s After	-103.0 dBm	Unknown	4	MediumSlow	2025-09-29 19:28:50	View

22

Total Receptions

22

Unique Gateways