Packet #28297611 Success

POSITION_APP packet from brokerLZZPortable (BLZP) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	28297611
Mesh Packet ID:	`0x05454edd` Used for correlation across gateways
Timestamp:	2025-12-17 16:19:42 UTC
From Node:	brokerLZZPortable (BLZP)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	XiaoWatt c4c8 🌐🔌 (c4c8)
Channel:	MediumFast
RSSI:	-79 dBm
SNR:	8.5 dBm
Hop Info:	2/5 hops Start: 5, Limit: 3
Relay Node:	`b0` Vbm , 26b0 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: 37 bytes

Decoded: Yes

Decoded Data:

Latitude:	40.448819°
Longitude:	-3.696230°
Altitude:	891 m
Satellites:	8
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:	37 bytes
Gateway:	!3387c4c8
Channel:	MediumFast
Payload Type:	POSITION_APP
Hop Count:	2 / 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`	`!3387c4c8` Node ID format
`channel_id`	`MediumFast`
`packet`	`MeshPacket` (37 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`789253721` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`37` 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`	`-79.0` dBm Signal strength at gateway	int32
`rx_snr`	`8.50` dB Signal quality at gateway	float
`rx_time`	`1765988381` 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`	`1765988382.095424` 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: ~2900.0m 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:	`!3387c4c8`
Position Precision:	13 bits (~2900.0m accuracy)
Position precision meters:	`2900.0`
Signal Metrics:	RSSI: -79.0 dBm SNR: 8.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	POSITION_APP
Size:	37 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 40.4488192, "longitude": -3.6962304, "altitude": 891, "sats_in_view": 8, "precision_bits": 13 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!3387c4c8", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 789253721, "to": 4294967295, "id": 88428253, "rx_time": 1765988381, "rx_snr": 8.5, "rx_rssi": -79, "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": "0d00001c18150000ccfd18fb06251cd84269280258b40178018001c8c08f0d980108b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 404488192, "longitude_i": -36962304, "altitude": 891, "time": 1765988380, "location_source": "LOC_INTERNAL", "PDOP": 180, "ground_speed": 1, "ground_track": 27517000, "sats_in_view": 8, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (37 bytes)

0d00001c18150000ccfd18fb06251cd84269280258b40178018001c8c08f0d980108b8010d

Hex Analysis:

Size:	37 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
XiaoWatt c4c8 🌐🔌 (c4c8) Primary	0.000s Reference	-79.0 dBm	8.50 dB	2	`b0` Vbm , 26b0	MediumFast	2025-12-17 16:19:42 UTC	Current
Meshtastic 1760 (1760)	-1.076s Before	-115.0 dBm	Unknown	1	`f5` RPT4	MediumFast	2025-12-17 16:19:41 UTC	View
Aldinra_1640_🗼_🌐 (AldB)	-1.052s Before	-117.0 dBm	-8.75 dB	1	`f5` RPT4	MediumFast	2025-12-17 16:19:41 UTC	View
🏔️Cerro del Aire🏔️_ b03c (CDA)	-0.739s Before	-121.0 dBm	-10.25 dB	1	`f5` RPT4	MediumFast	2025-12-17 16:19:41 UTC	View
Meshtastic 18a4 (18a4)	-0.711s Before	Unknown	Unknown	2	`60` 1760	MediumFast	2025-12-17 16:19:41 UTC	View
GRN1-Base🗼🌐 🔋 (GRN1)	-0.706s Before	-99.0 dBm	-1.00 dB	2	`b0` Vbm , 26b0	MediumFast	2025-12-17 16:19:41 UTC	View
Meshtastic 26b0 (26b0)	-0.410s Before	-100.0 dBm	-4.00 dB	1	`f5` RPT4	MediumFast	2025-12-17 16:19:41 UTC	View
JAGO1_Cañaveral (JAGO)	-0.355s Before	Unknown	11.00 dB	3	`70` JAG2	MediumFast	2025-12-17 16:19:41 UTC	View
[samsepi0l] 📡🌐 (tlg0)	-0.326s Before	-77.0 dBm	-6.75 dB	3	`fc` 74fc , Anu2	MediumFast	2025-12-17 16:19:41 UTC	View
MOVIL 1 🟢 MANCHASTIC (MV1V)	-0.132s Before	-121.0 dBm	-12.25 dB	2	`aa` CR1	MediumFast	2025-12-17 16:19:41 UTC	View
Ocumare Norte🗼🌐 (RRN)	-0.064s Before	-107.0 dBm	-12.50 dB	2	`b0` Vbm , 26b0	MediumFast	2025-12-17 16:19:42 UTC	View
ETH Maverick (ET01)	+0.156s After	-107.0 dBm	-7.00 dB	2	`61` TO1	MediumFast	2025-12-17 16:19:42 UTC	View
Wake Up, Neo...📡 (NEO)	+0.509s After	-94.0 dBm	0.25 dB	2	`ec` JAS	MediumFast	2025-12-17 16:19:42 UTC	View
Meshtastic JT01 (JT01)	+0.861s After	-124.0 dBm	-12.50 dB	3	`13` Sir	MediumFast	2025-12-17 16:19:42 UTC	View
ETH Goose (ET03)	+1.024s After	-33.0 dBm	11.00 dB	3	`41` ET01	MediumFast	2025-12-17 16:19:43 UTC	View
Villarejo01 (VIL1)	+1.046s After	-38.0 dBm	11.50 dB	3	`c6` d5c6	MediumFast	2025-12-17 16:19:43 UTC	View
Varela Bot 🏡🤖 (🤖)	+1.049s After	-87.0 dBm	4.25 dB	3	`1c` 🏡	MediumFast	2025-12-17 16:19:43 UTC	View
Eagle’s Nest (EAGL)	+1.462s After	-102.0 dBm	3.75 dB	4	`48` SMR1	MediumFast	2025-12-17 16:19:43 UTC	View
PXT_Home (PXT1)	+1.514s After	-97.0 dBm	8.25 dB	3	`fd` BAS2	MediumFast	2025-12-17 16:19:43 UTC	View
Quixote_JS8_5🗼🌐 (QXT5)	+1.745s After	-114.0 dBm	-10.50 dB	4	-	MediumFast	2025-12-17 16:19:43 UTC	View
Quixote_JS8_7 (QXT7)	+1.757s After	-18.0 dBm	11.25 dB	4	-	MediumFast	2025-12-17 16:19:43 UTC	View
🎄 SkG@Home 📡🌐 (SkGH)	+2.056s After	-83.0 dBm	-13.50 dB	4	`56` 8d56 , 3d56	MediumFast	2025-12-17 16:19:44 UTC	View
Jolu base (JL1)	+13.184s After	-125.0 dBm	-14.50 dB	4	`a4` HelB	MediumFast	2025-12-17 16:19:55 UTC	View
TweeteR ☀🔋 (TwT)	+394.189s After	-106.0 dBm	-11.25 dB	4	`a4` HelB	MediumFast	2025-12-17 16:26:16 UTC	View

24

Total Receptions

24

Unique Gateways