Packet #935665 Success

POSITION_APP packet from SkG@Tracker 📱 (SkGT) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	935665
Mesh Packet ID:	`0x6e6f9e18` Used for correlation across gateways
Timestamp:	2025-06-15 20:33:30 UTC
From Node:	SkG@Tracker 📱 (SkGT)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Meshtastic bb44 (bb44)
Channel:	LongFast
RSSI:	-114 dBm
SNR:	0.25 dBm
Hop Info:	5/5 hops Start: 5, Limit: 0

Payload Data

Protocol: POSITION_APP

Size: 37 bytes

Decoded: Yes

Decoded Data:

Latitude:	40.337408°
Longitude:	-3.820749°
Altitude:	771 m
Satellites:	7
Precision:	15 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:	!28b1bb44
Channel:	LongFast
Payload Type:	POSITION_APP
Hop Count:	5 / 5

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!28b1bb44` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (37 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1555771960` 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`	`-114.0` dBm Signal strength at gateway	int32
`rx_snr`	`0.25` dB Signal quality at gateway	float
`rx_time`	`1750019241` 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`	`36` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1750019610.3929944` 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)
✓ Gateway node ID tracked
✓ Reduced position precision: ~729.0m accuracy

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (5 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!28b1bb44`
Position Precision:	15 bits (~729.0m accuracy)
Position precision meters:	`729.0`
Signal Metrics:	RSSI: -114.0 dBm SNR: 0.25 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": 40.337408, "longitude": -3.8207488, "altitude": 771, "sats_in_view": 7, "precision_bits": 15 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!28b1bb44", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1555771960, "to": 4294967295, "id": 1852808728, "rx_time": 1750019241, "rx_snr": 0.25, "rx_rssi": -114, "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": 36, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00000b18150000b9fd18830625a32c4f6828025883017801800198c3bd0d980107b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403374080, "longitude_i": -38207488, "altitude": 771, "time": 1750019235, "location_source": "LOC_INTERNAL", "PDOP": 131, "ground_speed": 1, "ground_track": 28271000, "sats_in_view": 7, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (37 bytes)

0d00000b18150000b9fd18830625a32c4f6828025883017801800198c3bd0d980107b8010f

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	Channel	Timestamp	Actions
Meshtastic bb44 (bb44) Primary	0.000s Reference	-114.0 dBm	0.25 dB	5	LongFast	2025-06-15 20:33:30	Current
SkG@Home 🗼🌐 (SkGH)	-376.845s Before	-34.0 dBm	7.25 dB	0	LongFast	2025-06-15 20:27:13	View
LgnX_1490 (LgnX)	-373.133s Before	-117.0 dBm	-19.50 dB	1	LongFast	2025-06-15 20:27:17	View
test🗼🌐🌞 (test)	-371.825s Before	-125.0 dBm	-18.00 dB	2	LongFast	2025-06-15 20:27:18	View
Wake Up, Neo...📡 (NEO)	-370.848s Before	-107.0 dBm	-15.75 dB	3	LongFast	2025-06-15 20:27:19	View
Ajo Base 🧄 📡 (🧄)	-370.840s Before	-125.0 dBm	-18.50 dB	3	LongFast	2025-06-15 20:27:19	View
Meshtastic c498📡🌐 (C498)	-370.526s Before	-123.0 dBm	-19.00 dB	3	LongFast	2025-06-15 20:27:19	View
[TLGO] Base 📡🌐 (TLG0)	-370.520s Before	-112.0 dBm	-5.75 dB	3	LongFast	2025-06-15 20:27:19	View
GRN1-Base📡🌐 (GRN1)	-370.514s Before	-110.0 dBm	-3.25 dB	3	LongFast	2025-06-15 20:27:19	View
[Nevermore] Ceto🗼 (nvm4)	-370.396s Before	-122.0 dBm	-14.25 dB	3	LongFast	2025-06-15 20:27:19	View
Vich 📟🌐 (VCH)	-368.498s Before	-117.0 dBm	-5.50 dB	4	LongFast	2025-06-15 20:27:21	View
MeshIsidro01 (ISI1)	-366.811s Before	-108.0 dBm	-9.50 dB	5	LongFast	2025-06-15 20:27:23	View
Multiferr2 (36cc)	-366.165s Before	-108.0 dBm	-18.25 dB	5	LongFast	2025-06-15 20:27:24	View
Hugo 📱🌡️ (HUGO)	-357.689s Before	-83.0 dBm	-21.50 dB	4	LongFast	2025-06-15 20:27:32	View
Ventilla 📡🌐 (VENT)	-357.381s Before	-98.0 dBm	-19.50 dB	4	LongFast	2025-06-15 20:27:33	View
Meshtastic bb44 (bb44)	-72.049s Before	-114.0 dBm	0.25 dB	5	LongFast	2025-06-15 20:32:18	View
Meshtastic bb44 (bb44)	-33.995s Before	-114.0 dBm	0.25 dB	5	LongFast	2025-06-15 20:32:56	View
Meshtastic bb44 (bb44)	-11.987s Before	-114.0 dBm	0.25 dB	5	LongFast	2025-06-15 20:33:18	View
Meshtastic bb44 (bb44)	+3.994s After	-114.0 dBm	0.25 dB	5	LongFast	2025-06-15 20:33:34	View
Meshtastic bb44 (bb44)	+8.998s After	-114.0 dBm	0.25 dB	5	LongFast	2025-06-15 20:33:39	View
Meshtastic bb44 (bb44)	+14.003s After	-114.0 dBm	0.25 dB	5	LongFast	2025-06-15 20:33:44	View
Meshtastic bb44 (bb44)	+19.008s After	-114.0 dBm	0.25 dB	5	LongFast	2025-06-15 20:33:49	View
Meshtastic bb44 (bb44)	+26.014s After	-114.0 dBm	0.25 dB	5	LongFast	2025-06-15 20:33:56	View
Meshtastic bb44 (bb44)	+33.020s After	-114.0 dBm	0.25 dB	5	LongFast	2025-06-15 20:34:03	View
Meshtastic bb44 (bb44)	+40.026s After	-114.0 dBm	0.25 dB	5	LongFast	2025-06-15 20:34:10	View
Meshtastic bb44 (bb44)	+52.033s After	-114.0 dBm	0.25 dB	5	LongFast	2025-06-15 20:34:22	View

26

Total Receptions

15

Unique Gateways