Packet #29041354 Success

POSITION_APP packet from HeliosBase 🔆 (HelB) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	29041354
Mesh Packet ID:	`0x3e9666d3` Used for correlation across gateways
Timestamp:	2025-12-21 01:57:09 UTC
From Node:	HeliosBase 🔆 (HelB)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	EA4IGE_Alco (astu)
Channel:	MediumFast
RSSI:	-123 dBm
SNR:	-13.25 dBm
Hop Info:	3/5 hops Start: 5, Limit: 2
Relay Node:	`64` Last byte of the last hop that relayed this packet

Payload Data

Protocol: POSITION_APP

Size: 28 bytes

Decoded: Yes

Decoded Data:

Latitude:	40.313242°
Longitude:	-3.877683°
Altitude:	656 m
Precision:	19 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:	!442e7cfd
Channel:	MediumFast
Payload Type:	POSITION_APP
Hop Count:	3 / 5

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 1 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 3 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!442e7cfd` Node ID format
`channel_id`	`MediumFast`
`packet`	`MeshPacket` (28 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3679544228` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`28` bytes	size
`hop_limit`	`2` Remaining hops allowed	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`3` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-123.0` dBm Signal strength at gateway	int32
`rx_snr`	`-13.25` dB Signal quality at gateway	float
`rx_time`	`1766282229` 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`	`100` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1766282229.6528327` 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: MediumFast
✓ Gateway node ID tracked

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
⚠ Full GPS precision shared
⚠ Multi-hop path visible (3 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!442e7cfd`
Position Precision:	19 bits (~45.0m accuracy)
Position precision meters:	`45.0`
Signal Metrics:	RSSI: -123.0 dBm SNR: -13.25 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": 40.3132416, "longitude": -3.8776832, "altitude": 656, "sats_in_view": null, "precision_bits": 19 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!442e7cfd", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3679544228, "to": 4294967295, "id": 1050044115, "rx_time": 1766282229, "rx_snr": -13.25, "rx_rssi": -123, "hop_limit": 2, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 100, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00500718150050b0fd18900525f153476928037800800100b80113", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403132416, "longitude_i": -38776832, "altitude": 656, "time": 1766282225, "location_source": "LOC_EXTERNAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 19, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (28 bytes)

0d00500718150050b0fd18900525f153476928037800800100b80113

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	Relay	Channel	Timestamp	Actions
EA4IGE_Alco (astu) Primary	0.000s Reference	-123.0 dBm	-13.25 dB	3	`64`	MediumFast	2025-12-21 01:57:09 UTC	Current
PXT_Home (PXT1)	-2.083s Before	-99.0 dBm	8.75 dB	1	`fd` BAS2	MediumFast	2025-12-21 01:57:07 UTC	View
JAGO1_Cañaveral (JAGO)	-0.634s Before	-97.0 dBm	8.00 dB	3	`ab` Hch	MediumFast	2025-12-21 01:57:09 UTC	View
🎄 SkG@Home 📡🌐 (SkGH)	-0.545s Before	-94.0 dBm	-6.00 dB	2	`61` TO1	MediumFast	2025-12-21 01:57:09 UTC	View
Eagle’s Nest (EAGL)	-0.536s Before	-123.0 dBm	-13.25 dB	2	`61` TO1	MediumFast	2025-12-21 01:57:09 UTC	View
ETH Maverick (ET01)	-0.289s Before	-105.0 dBm	-14.25 dB	2	`61` TO1	MediumFast	2025-12-21 01:57:09 UTC	View
Venturada2 🗼🌞 (Vb2)	+0.202s After	-78.0 dBm	9.75 dB	2	`10` Vb	MediumFast	2025-12-21 01:57:09 UTC	View
X Wing 🚀 Kenobi (Knb2)	+0.602s After	-111.0 dBm	-4.75 dB	2	`61` TO1	MediumFast	2025-12-21 01:57:10 UTC	View
Wake Up, Neo...📡 (NEO)	+0.974s After	-107.0 dBm	-10.00 dB	4	`14` POZ1	MediumFast	2025-12-21 01:57:10 UTC	View
GRN2-Cli 📡🔋 (GRN2)	+1.133s After	-132.0 dBm	-10.25 dB	3	`b0` Vb2	MediumFast	2025-12-21 01:57:10 UTC	View
Mikasa 🧣 📟 (🧣)	+1.136s After	-104.0 dBm	-3.25 dB	3	`b0` Vb2	MediumFast	2025-12-21 01:57:10 UTC	View
Villalbilla02 (VBV2)	+1.430s After	-116.0 dBm	-6.25 dB	3	`b0` Vb2	MediumFast	2025-12-21 01:57:11 UTC	View
ETH Goose (ET03)	+1.442s After	-26.0 dBm	11.25 dB	3	`41` ET01	MediumFast	2025-12-21 01:57:11 UTC	View
Ocumare Norte🗼🌐 (RRN)	+1.478s After	-99.0 dBm	-3.50 dB	3	`b0` Vbm , Vb2	MediumFast	2025-12-21 01:57:11 UTC	View
XiaoWatt c4c8 🌐🔌 (c4c8)	+1.507s After	-79.0 dBm	8.00 dB	3	`b0` Vbm , Vb2	MediumFast	2025-12-21 01:57:11 UTC	View
g1bal (g1b0)	+1.901s After	-108.0 dBm	-2.25 dB	3	`f5` RPT4	MediumFast	2025-12-21 01:57:11 UTC	View
🤖 Nicolas Cage 🌐 (Cage)	+1.971s After	-100.0 dBm	7.50 dB	4	`5d` 🥖	MediumFast	2025-12-21 01:57:11 UTC	View
tizon (Sylv)	+2.012s After	-112.0 dBm	-4.75 dB	4	`5d` 🥖	MediumFast	2025-12-21 01:57:11 UTC	View
Meshtastic 1760 (1760)	+2.237s After	-120.0 dBm	-2.25 dB	3	`f5` RPT4	MediumFast	2025-12-21 01:57:11 UTC	View
Aldinra_1640_🗼_🌐 (AldB)	+2.260s After	-120.0 dBm	-10.50 dB	3	`f5` RPT4	MediumFast	2025-12-21 01:57:11 UTC	View
EA4GGL (4GGL)	+2.303s After	-127.0 dBm	-9.50 dB	4	`14` POZ1	MediumFast	2025-12-21 01:57:11 UTC	View
Quixote_JS8_7 (QXT7)	+2.492s After	-18.0 dBm	11.00 dB	4	-	MediumFast	2025-12-21 01:57:12 UTC	View
Quixote_JS8_5🗼🌐 (QXT5)	+2.494s After	-115.0 dBm	-7.00 dB	4	-	MediumFast	2025-12-21 01:57:12 UTC	View
Meshtastic 18a4 (18a4)	+2.500s After	Unknown	Unknown	4	`60` 1760	MediumFast	2025-12-21 01:57:12 UTC	View
Pozuelo (POZ1)	+4.449s After	-89.0 dBm	-9.25 dB	3	`b0` Vb2	MediumFast	2025-12-21 01:57:14 UTC	View
Quass001 ☄️ (Q001)	+7.746s After	-34.0 dBm	10.50 dB	5	`3a` Q005	MediumFast	2025-12-21 01:57:17 UTC	View
Skynet (Sky)	+13.881s After	-103.0 dBm	-8.50 dB	5	`d1` 👾	MediumFast	2025-12-21 01:57:23 UTC	View

27

Total Receptions

27

Unique Gateways