Packet #28300236 Success

POSITION_APP packet from Venturada movil🚗 (Vm) to Sierra norte Madrid ⛰️🗼🌞 (SNM)

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	28300236
Mesh Packet ID:	`0xc941e928` Used for correlation across gateways
Timestamp:	2025-12-17 16:28:23 UTC
From Node:	Venturada movil🚗 (Vm)
To Node:	Sierra norte Madrid ⛰️🗼🌞 (SNM)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	TweeteR ☀🔋 (TwT)
Channel:	MediumFast
RSSI:	-107 dBm
SNR:	3.0 dBm
Hop Info:	3/4 hops Start: 4, Limit: 1
Relay Node:	`85` FTO1 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Payload Data

Protocol: POSITION_APP

Size: 28 bytes

Decoded: Yes

Decoded Data:

Latitude:	40.815821°
Longitude:	-3.591373°
Altitude:	916 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:	!db2ac798
Channel:	MediumFast
Payload Type:	POSITION_APP
Hop Count:	3 / 4

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 (3 hops)
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!db2ac798` 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`	`587411239` 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`	`4` Initial hop limit	uint32
`hops_taken`	`3` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-107.0` dBm Signal strength at gateway	int32
`rx_snr`	`3.00` dB Signal quality at gateway	float
`rx_time`	`1765988901` 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`	`133` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1765988903.8714447` 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: MediumFast
✓ Gateway node ID tracked
✓ Reduced position precision: ~2900.0m accuracy

Exposure Risks:

⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (3 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!db2ac798`
Position Precision:	13 bits (~2900.0m accuracy)
Position precision meters:	`2900.0`
Signal Metrics:	RSSI: -107.0 dBm SNR: 3.00 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": 40.8158208, "longitude": -3.5913728, "altitude": 916, "sats_in_view": null, "precision_bits": 13 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!db2ac798", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 587411239, "to": 1129719940, "id": 3376539944, "rx_time": 1765988901, "rx_snr": 3.0, "rx_rssi": -107, "hop_limit": 1, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 133, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00005418150000dcfd189407251dda426928037800800100b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 408158208, "longitude_i": -35913728, "altitude": 916, "time": 1765988893, "location_source": "LOC_EXTERNAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (28 bytes)

0d00005418150000dcfd189407251dda426928037800800100b8010d

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
TweeteR ☀🔋 (TwT) Primary	0.000s Reference	-107.0 dBm	3.00 dB	3	`85` FTO1	MediumFast	2025-12-17 16:28:23 UTC	Current
Meshtastic JT01 (JT01)	-4.641s Before	-124.0 dBm	-12.50 dB	1	`13` Sir	MediumFast	2025-12-17 16:28:19 UTC	View
Mec Rocket Meco (MRM)	-4.630s Before	-110.0 dBm	-10.50 dB	1	`13` Sir	MediumFast	2025-12-17 16:28:19 UTC	View
XiaoWatt c4c8 🌐🔌 (c4c8)	-4.574s Before	-97.0 dBm	-9.50 dB	1	`13` Sir	MediumFast	2025-12-17 16:28:19 UTC	View
Venturada2🗼🌐☀️ (Vb2)	-3.925s Before	-95.0 dBm	2.75 dB	0	`27` Vm , rzrk	MediumFast	2025-12-17 16:28:19 UTC	View
Meshtastic 1760 (1760)	-3.761s Before	-134.0 dBm	-12.50 dB	1	`b0` Vbm , Vb2	MediumFast	2025-12-17 16:28:20 UTC	View
Meshtastic 18a4 (18a4)	-3.412s Before	Unknown	Unknown	2	`60` 1760	MediumFast	2025-12-17 16:28:20 UTC	View
[samsepi0l] 📡🌐 (tlg0)	-3.105s Before	-100.0 dBm	-9.00 dB	1	`b0` Vbm , PUPM , Vb2	MediumFast	2025-12-17 16:28:20 UTC	View
JAGO1_Cañaveral (JAGO)	-3.033s Before	-27.0 dBm	11.25 dB	2	`28` JAG3	MediumFast	2025-12-17 16:28:20 UTC	View
Aldinra_1640_🗼_🌐 (AldB)	-3.008s Before	-103.0 dBm	4.75 dB	2	`60` 1760	MediumFast	2025-12-17 16:28:20 UTC	View
GRN1-Base🗼🌐 🔋 (GRN1)	-2.988s Before	-107.0 dBm	-9.00 dB	1	`13` Sir	MediumFast	2025-12-17 16:28:20 UTC	View
Ocumare Norte🗼🌐 (RRN)	-2.421s Before	-105.0 dBm	-11.25 dB	1	`b0` Vbm , Vb2	MediumFast	2025-12-17 16:28:21 UTC	View
🎄 SkG@Home 📡🌐 (SkGH)	-2.342s Before	-82.0 dBm	6.50 dB	2	`56` 8d56 , 3d56	MediumFast	2025-12-17 16:28:21 UTC	View
Villarejo01 (VIL1)	-1.971s Before	-37.0 dBm	10.75 dB	2	`c6` d5c6	MediumFast	2025-12-17 16:28:21 UTC	View
Fenix (FENX)	-1.850s Before	-117.0 dBm	-11.00 dB	1	`61` TO1	MediumFast	2025-12-17 16:28:22 UTC	View
Varela Bot 🏡🤖 (🤖)	-1.728s Before	-87.0 dBm	4.00 dB	2	`1c` 🏡	MediumFast	2025-12-17 16:28:22 UTC	View
Quixote_JS8_5🗼🌐 (QXT5)	-1.449s Before	-115.0 dBm	-9.00 dB	3	-	MediumFast	2025-12-17 16:28:22 UTC	View
Quixote_JS8_7 (QXT7)	-1.446s Before	-18.0 dBm	11.00 dB	3	-	MediumFast	2025-12-17 16:28:22 UTC	View
MOVIL 1 🟢 MANCHASTIC (MV1V)	-1.239s Before	-65.0 dBm	11.25 dB	2	`b4`	MediumFast	2025-12-17 16:28:22 UTC	View
Eagle’s Nest (EAGL)	-1.149s Before	-115.0 dBm	-4.75 dB	2	`74` TakF	MediumFast	2025-12-17 16:28:22 UTC	View
PXT_Home (PXT1)	-0.492s Before	-103.0 dBm	6.25 dB	3	`11` BAS1	MediumFast	2025-12-17 16:28:23 UTC	View
Zion 🗼 (Zion)	-0.439s Before	-106.0 dBm	-7.50 dB	3	`11` BAS1	MediumFast	2025-12-17 16:28:23 UTC	View
Meshtastic b2b4📡🌐 (b2b4)	+22.458s After	-108.0 dBm	-5.25 dB	2	`2d` SkyB	MediumFast	2025-12-17 16:28:46 UTC	View
Karabanchel_Baldur (KarB)	+22.460s After	-93.0 dBm	1.50 dB	2	`2d` SkyB	MediumFast	2025-12-17 16:28:46 UTC	View
🤖 Nicolas Cage 🌐 (Cage)	+22.671s After	-71.0 dBm	11.00 dB	2	`2d` SkyB	MediumFast	2025-12-17 16:28:46 UTC	View
tizon (Sylv)	+22.789s After	-111.0 dBm	-2.75 dB	2	`2d` SkyB	MediumFast	2025-12-17 16:28:46 UTC	View
Meshtastic 870c📡🌐 (870c)	+24.521s After	-95.0 dBm	9.00 dB	4	`dc` d0dc	MediumFast	2025-12-17 16:28:48 UTC	View

27

Total Receptions

27

Unique Gateways