Packet #27900785 Success

POSITION_APP packet from Zona Alta Rivas Vaciamadrid 📡 (Raq1) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	27900785
Mesh Packet ID:	`0xe60160d2` Used for correlation across gateways
Timestamp:	2025-12-15 21:28:32 UTC
From Node:	Zona Alta Rivas Vaciamadrid 📡 (Raq1)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	srs-h3 📡🌐 (srs0)
Channel:	MediumFast
RSSI:	-124 dBm
SNR:	-13.75 dBm
Hop Info:	4/5 hops Start: 5, Limit: 1
Relay Node:	`bb` 03bb 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: 15 bytes

Decoded: Yes

Decoded Data:

Latitude:	40.357069°
Longitude:	-3.525837°
Precision:	14 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:	15 bytes
Gateway:	!433d603c
Channel:	MediumFast
Payload Type:	POSITION_APP
Hop Count:	4 / 5

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 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`	`!433d603c` Node ID format
`channel_id`	`MediumFast`
`packet`	`MeshPacket` (15 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3677054628` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`15` bytes	size
`hop_limit`	`1` Remaining hops allowed	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`4` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-124.0` dBm Signal strength at gateway	int32
`rx_snr`	`-13.75` dB Signal quality at gateway	float
`rx_time`	`1765834111` 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`	`187` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1765834112.0818944` 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
✓ Reduced position precision: ~1500.0m accuracy

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (4 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!433d603c`
Position Precision:	14 bits (~1500.0m accuracy)
Position precision meters:	`1500.0`
Signal Metrics:	RSSI: -124.0 dBm SNR: -13.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	POSITION_APP
Size:	15 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 40.3570688, "longitude": -3.5258368, "altitude": null, "sats_in_view": null, "precision_bits": 14 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!433d603c", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3677054628, "to": 4294967295, "id": 3858850002, "rx_time": 1765834111, "rx_snr": -13.75, "rx_rssi": -124, "hop_limit": 1, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 187, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00000e18150000e6fd2801b8010e", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403570688, "longitude_i": -35258368, "location_source": "LOC_MANUAL", "precision_bits": 14, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (15 bytes)

0d00000e18150000e6fd2801b8010e

Hex Analysis:

Size:	15 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
srs-h3 📡🌐 (srs0) Primary	0.000s Reference	-124.0 dBm	-13.75 dB	4	`bb` 03bb	MediumFast	2025-12-15 21:28:32 UTC	Current
Eagle’s Nest (EAGL)	-2.937s Before	-111.0 dBm	-1.00 dB	0	`a4` Raq1	MediumFast	2025-12-15 21:28:29 UTC	View
[samsepi0l] 📡🌐 (tlg0)	-2.550s Before	-104.0 dBm	-12.50 dB	1	`b0` PUPM , 26b0	MediumFast	2025-12-15 21:28:29 UTC	View
Meshtastic 26b0 (26b0)	-2.509s Before	-87.0 dBm	8.00 dB	1	`61` TO1	MediumFast	2025-12-15 21:28:29 UTC	View
JAGO1_Cañaveral (JAGO)	-2.225s Before	-122.0 dBm	-12.75 dB	2	`b0` Vbm , PUPM , 26b0	MediumFast	2025-12-15 21:28:29 UTC	View
Ocumare Norte🗼🌐 (RRN)	-2.221s Before	-102.0 dBm	-6.75 dB	2	`b0` Vbm , 26b0	MediumFast	2025-12-15 21:28:29 UTC	View
JPL73B4_Node (JPL4)	-2.217s Before	-108.0 dBm	-8.25 dB	2	`b0` 26b0	MediumFast	2025-12-15 21:28:29 UTC	View
Fenix (FENX)	-2.196s Before	-120.0 dBm	-11.75 dB	1	`61` TO1	MediumFast	2025-12-15 21:28:29 UTC	View
XiaoWatt c4c8 🌐🔌 (c4c8)	-2.183s Before	-80.0 dBm	8.00 dB	2	`b0` Vbm , 26b0	MediumFast	2025-12-15 21:28:29 UTC	View
Meshtastic 1760 (1760)	-1.894s Before	-130.0 dBm	-11.00 dB	2	`b0` 26b0	MediumFast	2025-12-15 21:28:30 UTC	View
JPL73B2_Node (JPL2)	-1.877s Before	-94.0 dBm	-11.50 dB	2	`b0` Vbm , 26b0	MediumFast	2025-12-15 21:28:30 UTC	View
Villalbilla02 (VBV2)	-1.869s Before	-116.0 dBm	-6.00 dB	2	`b0` 26b0	MediumFast	2025-12-15 21:28:30 UTC	View
GRN1-Base🗼🌐 🔋 (GRN1)	-1.865s Before	-99.0 dBm	-3.75 dB	2	`b0` Vbm , 26b0	MediumFast	2025-12-15 21:28:30 UTC	View
Karabanchel_Baldur (KarB)	-1.738s Before	-106.0 dBm	-9.25 dB	2	`88` KarB , FENX	MediumFast	2025-12-15 21:28:30 UTC	View
Mec Rocket Meco (MRM)	-1.556s Before	-113.0 dBm	-12.75 dB	3	`c0` sdAh	MediumFast	2025-12-15 21:28:30 UTC	View
Wake Up, Neo...📡 (NEO)	-1.503s Before	-108.0 dBm	-12.75 dB	3	`08`	MediumFast	2025-12-15 21:28:30 UTC	View
Meshtastic 18a4 (18a4)	-1.249s Before	-80.0 dBm	9.25 dB	3	`60` 1760	MediumFast	2025-12-15 21:28:30 UTC	View
Varela Bot 🏡🤖 (🤖)	-1.000s Before	-76.0 dBm	9.50 dB	3	`1c` 🏡	MediumFast	2025-12-15 21:28:31 UTC	View
Quixote_JS8_7 (QXT7)	-0.976s Before	-19.0 dBm	10.75 dB	3	-	MediumFast	2025-12-15 21:28:31 UTC	View
Quixote_JS8_5🗼🌐 (QXT5)	-0.972s Before	-114.0 dBm	-12.75 dB	3	-	MediumFast	2025-12-15 21:28:31 UTC	View
Villarejo01 (VIL1)	-0.937s Before	-33.0 dBm	11.25 dB	2	`c6` d5c6	MediumFast	2025-12-15 21:28:31 UTC	View
Zion 🗼 (Zion)	-0.858s Before	-113.0 dBm	-8.75 dB	3	`85` FTO1	MediumFast	2025-12-15 21:28:31 UTC	View
Quass001 ☄️ (Q001)	-0.601s Before	-39.0 dBm	10.25 dB	4	`3a` Q005	MediumFast	2025-12-15 21:28:31 UTC	View
MakeSpaceMadrid (MKS)	-0.194s Before	-100.0 dBm	10.00 dB	5	`d1` MKS2	MediumFast	2025-12-15 21:28:31 UTC	View
PXT_Home (PXT1)	+3.238s After	-110.0 dBm	-2.25 dB	4	`a4` HelB	MediumFast	2025-12-15 21:28:35 UTC	View

25

Total Receptions

25

Unique Gateways