Packet #30172137 Success

POSITION_APP packet from Meshtastic c7b6 (c7b6) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	30172137
Mesh Packet ID:	`0x511d2936` Used for correlation across gateways
Timestamp:	2025-12-25 22:42:04 UTC
From Node:	Meshtastic c7b6 (c7b6)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	🎄 SkG@Home 📡🌐 (SkGH)
Channel:	MediumFast
RSSI:	-82 dBm
SNR:	-12.0 dBm
Hop Info:	5/5 hops Start: 5, Limit: 0
Relay Node:	`56` 8d56 , 3d56 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:	40.710963°
Longitude:	-3.905946°
Altitude:	930 m
Satellites:	6
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:	!13267e64
Channel:	MediumFast
Payload Type:	POSITION_APP
Hop Count:	5 / 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`	`!13267e64` 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`	`4063414198` 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`	Not set	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`5` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-82.0` dBm Signal strength at gateway	int32
`rx_snr`	`-12.00` dB Signal quality at gateway	float
`rx_time`	`1766702524` 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`	`86` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1766702524.1840966` 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 (5 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!13267e64`
Position Precision:	13 bits (~2900.0m accuracy)
Position precision meters:	`2900.0`
Signal Metrics:	RSSI: -82.0 dBm SNR: -12.00 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": 40.7109632, "longitude": -3.9059456, "altitude": 930, "sats_in_view": 6, "precision_bits": 13 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!13267e64", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 4063414198, "to": 4294967295, "id": 1360865590, "rx_time": 1766702524, "rx_snr": -12.0, "rx_rssi": -82, "hop_limit": 0, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 86, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00004418150000acfd18a20725c0bd4d69280258890478018001e8b2aa09980106b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407109632, "longitude_i": -39059456, "altitude": 930, "time": 1766702528, "location_source": "LOC_INTERNAL", "PDOP": 521, "ground_speed": 1, "ground_track": 19569000, "sats_in_view": 6, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (37 bytes)

0d00004418150000acfd18a20725c0bd4d69280258890478018001e8b2aa09980106b8010d

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
🎄 SkG@Home 📡🌐 (SkGH) Primary	0.000s Reference	-82.0 dBm	-12.00 dB	5	`56` 8d56 , 3d56	MediumFast	2025-12-25 22:42:04 UTC	Current
[samsepi0l] 📡🌐 (tlg0)	-3.383s Before	-95.0 dBm	-0.75 dB	1	-	MediumFast	2025-12-25 22:42:00 UTC	View
Wake Up, Neo...📡 (NEO)	-2.765s Before	-100.0 dBm	-5.50 dB	2	`f5` RPT4	MediumFast	2025-12-25 22:42:01 UTC	View
Venturada2 🗼🌞 (Vb2)	-2.762s Before	-99.0 dBm	-1.50 dB	2	`f5` RPT4	MediumFast	2025-12-25 22:42:01 UTC	View
g1bal (g1b0)	-2.756s Before	-106.0 dBm	-1.00 dB	2	`f5` RPT4	MediumFast	2025-12-25 22:42:01 UTC	View
Karabanchel_Baldur (KarB)	-2.243s Before	-96.0 dBm	-2.25 dB	2	`1c` 1f1c , 🐷	MediumFast	2025-12-25 22:42:01 UTC	View
Meshtastic b2b4📡🌐 (b2b4)	-2.229s Before	-113.0 dBm	-13.50 dB	2	`2d` SkyB	MediumFast	2025-12-25 22:42:01 UTC	View
Rodashtastic🗼🌐 (RDSt)	-2.122s Before	-115.0 dBm	-11.50 dB	2	`e8` GRN1	MediumFast	2025-12-25 22:42:02 UTC	View
Ocumare Norte🗼🌐 (RRN)	-2.084s Before	-103.0 dBm	-10.00 dB	3	`b0` Sir , Vb2	MediumFast	2025-12-25 22:42:02 UTC	View
GRN1-Base🗼🌐 🔋 (GRN1)	-2.051s Before	-105.0 dBm	-6.50 dB	1	-	MediumFast	2025-12-25 22:42:02 UTC	View
XiaoWatt c4c8 🌐🔌 (c4c8)	-2.016s Before	-81.0 dBm	5.50 dB	3	`b0` Sir , Vb2	MediumFast	2025-12-25 22:42:02 UTC	View
Skynet (Sky)	-1.955s Before	-43.0 dBm	11.25 dB	2	`2d` SkyB	MediumFast	2025-12-25 22:42:02 UTC	View
🤖 Nicolas Cage 🌐 (Cage)	-1.946s Before	-67.0 dBm	10.75 dB	2	`2d` SkyB	MediumFast	2025-12-25 22:42:02 UTC	View
tizon (Sylv)	-1.914s Before	-105.0 dBm	3.75 dB	2	`1c` 🐷	MediumFast	2025-12-25 22:42:02 UTC	View
Meshtastic 18a4 (18a4)	-1.506s Before	-109.0 dBm	-5.00 dB	3	`40` AldB	MediumFast	2025-12-25 22:42:02 UTC	View
Meshtastic 1760 (1760)	-1.480s Before	-119.0 dBm	-2.50 dB	3	`40` AldB	MediumFast	2025-12-25 22:42:02 UTC	View
Quass001 ☄️ (Q001)	-1.240s Before	-39.0 dBm	11.25 dB	3	`3a` Q005	MediumFast	2025-12-25 22:42:02 UTC	View
Varela Bot 🏡🤖 (🤖)	-1.006s Before	-84.0 dBm	6.75 dB	2	`1c` 🏡	MediumFast	2025-12-25 22:42:03 UTC	View
JAGO1_Cañaveral (JAGO)	-0.775s Before	-116.0 dBm	-10.50 dB	3	`84` 📡	MediumFast	2025-12-25 22:42:03 UTC	View
Eagle’s Nest (EAGL)	-0.570s Before	-103.0 dBm	3.75 dB	5	`48` SMR1	MediumFast	2025-12-25 22:42:03 UTC	View
Mec Rocket Meco (MRM)	-0.458s Before	-109.0 dBm	-11.25 dB	4	`a8` CALB	MediumFast	2025-12-25 22:42:03 UTC	View
Meshtastic 870c📡🌐 (870c)	-0.347s Before	-96.0 dBm	9.50 dB	4	`dc`	MediumFast	2025-12-25 22:42:03 UTC	View
Vito 📟📡 (VTO)	+225.891s After	-118.0 dBm	-13.00 dB	4	`88` 2b88	MediumFast	2025-12-25 22:45:50 UTC	View

23

Total Receptions

23

Unique Gateways