Packet #12295561 Success

POSITION_APP packet from ColmenarViejo_001 (CV01) to Sierra norte Madrid ⛰️🗼🌞 (SNM)

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	12295561
Mesh Packet ID:	`0xa445b0ae` Used for correlation across gateways
Timestamp:	2025-09-26 17:49:22 UTC
From Node:	ColmenarViejo_001 (CV01)
To Node:	Sierra norte Madrid ⛰️🗼🌞 (SNM)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Baldur Fijo (BalF)
Channel:	MediumSlow
RSSI:	-115 dBm
SNR:	-8.25 dBm
Hop Info:	1/2 hops Start: 2, Limit: 1

Payload Data

Protocol: POSITION_APP

Size: 28 bytes

Decoded: Yes

Decoded Data:

Latitude:	40.658534°
Longitude:	-3.748659°
Altitude:	871 m
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:	28 bytes
Gateway:	!9ea14a78
Channel:	MediumSlow
Payload Type:	POSITION_APP
Hop Count:	1 / 2

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 3 more...

Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (1 hops)
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!9ea14a78` Node ID format
`channel_id`	`MediumSlow`
`packet`	`MeshPacket` (28 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3298284292` Source node ID	uint32
`to`	`1129719940` Target node ID	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`28` bytes	size
`hop_limit`	`1` Remaining hops allowed	uint32
`hop_start`	`2` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-115.0` dBm Signal strength at gateway	int32
`rx_snr`	`-8.25` dB Signal quality at gateway	float
`rx_time`	`1758908962` 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`	`8` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1758908962.5425587` Unix timestamp	uint32

MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Direct Message

Privacy Features:

✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
✓ Custom channel: MediumSlow
✓ Gateway node ID tracked
✓ Reduced position precision: ~2900.0m accuracy

Exposure Risks:

⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (1 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!9ea14a78`
Position Precision:	13 bits (~2900.0m accuracy)
Position precision meters:	`2900.0`
Signal Metrics:	RSSI: -115.0 dBm SNR: -8.25 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	POSITION_APP
Size:	28 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 40.6585344, "longitude": -3.7486592, "altitude": 871, "sats_in_view": null, "precision_bits": 13 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!9ea14a78", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3298284292, "to": 1129719940, "id": 2756030638, "rx_time": 1758908962, "rx_snr": -8.25, "rx_rssi": -115, "hop_limit": 1, "hop_start": 2, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 8, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00003c18150000c4fd18e706258dd1d66828017800800100b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 406585344, "longitude_i": -37486592, "altitude": 871, "time": 1758908813, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (28 bytes)

0d00003c18150000c4fd18e706258dd1d66828017800800100b8010d

Hex Analysis:

Size:	28 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
Baldur Fijo (BalF) Primary	0.000s Reference	-115.0 dBm	-8.25 dB	1	MediumSlow	2025-09-26 17:49:22	Current
GRN1-Base🗼🌐 (GRN1)	-17.057s Before	-105.0 dBm	-10.25 dB	0	MediumSlow	2025-09-26 17:49:05	View
Meshtastic 18a4 (18a4)	-15.234s Before	-123.0 dBm	-15.00 dB	1	MediumSlow	2025-09-26 17:49:07	View
Suop 📡 🌐 (SUOP)	-15.222s Before	-115.0 dBm	-9.75 dB	1	MediumSlow	2025-09-26 17:49:07	View
Meshtastic 1760 (1760)	-15.185s Before	-127.0 dBm	-9.75 dB	1	MediumSlow	2025-09-26 17:49:07	View
Kenobi23 QTH (5aec)	-15.121s Before	-98.0 dBm	-0.50 dB	1	MediumSlow	2025-09-26 17:49:07	View
Venturada2🗼🌐☀️ (Vb2)	-11.310s Before	-88.0 dBm	5.00 dB	1	MediumSlow	2025-09-26 17:49:11	View
g1bal (g1b0)	-10.853s Before	-96.0 dBm	3.50 dB	2	MediumSlow	2025-09-26 17:49:11	View
Monolito (MoN)	-1.875s Before	-73.0 dBm	8.25 dB	2	MediumSlow	2025-09-26 17:49:20	View
Fuenca fijo (c578)	-0.105s Before	-121.0 dBm	-8.25 dB	1	MediumSlow	2025-09-26 17:49:22	View
Machu Pichu (MaPi)	-0.043s Before	-90.0 dBm	3.00 dB	1	MediumSlow	2025-09-26 17:49:22	View
Meshtastic c498📡🌐 (C498)	-0.018s Before	-120.0 dBm	-14.50 dB	1	MediumSlow	2025-09-26 17:49:22	View
Rodashtastic🗼🌐 (RDSt)	-0.014s Before	-113.0 dBm	-5.00 dB	1	MediumSlow	2025-09-26 17:49:22	View
[TLG] 📡🌐🔋🔌 (tlg0)	+0.016s After	-111.0 dBm	-9.75 dB	1	MediumSlow	2025-09-26 17:49:22	View
Naranjo C191 🌐 (FNL)	+0.022s After	-113.0 dBm	-5.75 dB	1	MediumSlow	2025-09-26 17:49:22	View
Will - Azuqueca (WAzq)	+0.684s After	-107.0 dBm	-6.00 dB	1	MediumSlow	2025-09-26 17:49:23	View
TO_Cala_Base2🗼🌐☀️ (33C8)	+1.280s After	-112.0 dBm	-6.00 dB	2	MediumSlow	2025-09-26 17:49:23	View
Quass001 ☄️ (Q001)	+1.285s After	-115.0 dBm	-3.75 dB	2	MediumSlow	2025-09-26 17:49:23	View
SkG@Home 📡🌐 (SkGH)	+1.301s After	-127.0 dBm	-17.75 dB	2	MediumSlow	2025-09-26 17:49:23	View
Mec Rocket Meco (MRM)	+1.519s After	-114.0 dBm	-12.50 dB	1	MediumSlow	2025-09-26 17:49:24	View
Alma Tracker (AGPS)	+1.803s After	-104.0 dBm	-13.25 dB	2	MediumSlow	2025-09-26 17:49:24	View
🌐Charly Unid Movil🛰 (C181)	+3.644s After	-119.0 dBm	-16.25 dB	2	MediumSlow	2025-09-26 17:49:26	View
Ocumare_Base_🗼🌐 (CATA)	+650.814s After	-86.0 dBm	6.75 dB	1	MediumSlow	2025-09-26 18:00:13	View
Wis 7d99 (7d99)	+1232.860s After	-44.0 dBm	9.00 dB	2	MediumSlow	2025-09-26 18:09:55	View

24

Total Receptions

24

Unique Gateways