Packet #28370690 Success

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

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	28370690
Mesh Packet ID:	`0xf77c234b` Used for correlation across gateways
Timestamp:	2025-12-18 00:07:29 UTC
From Node:	SkG@Tracker 📱 (SkGT)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Meshtastic b2b4📡🌐 (b2b4)
Channel:	MediumFast
RSSI:	-116 dBm
SNR:	-12.25 dBm
Hop Info:	5/5 hops Start: 5, Limit: 0
Relay Node:	`88` KarB 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: 36 bytes

Decoded: Yes

Decoded Data:

Latitude:	40.337408°
Longitude:	-3.820749°
Altitude:	768 m
Satellites:	18
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:	36 bytes
Gateway:	!433db2b4
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`	`!433db2b4` Node ID format
`channel_id`	`MediumFast`
`packet`	`MeshPacket` (36 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`	`36` 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`	`-116.0` dBm Signal strength at gateway	int32
`rx_snr`	`-12.25` dB Signal quality at gateway	float
`rx_time`	`1766016447` 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`	`136` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1766016449.1852133` 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: ~729.0m 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:	`!433db2b4`
Position Precision:	15 bits (~729.0m accuracy)
Position precision meters:	`729.0`
Signal Metrics:	RSSI: -116.0 dBm SNR: -12.25 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	POSITION_APP
Size:	36 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 40.337408, "longitude": -3.8207488, "altitude": 768, "sats_in_view": 18, "precision_bits": 15 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!433db2b4", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1555771960, "to": 4294967295, "id": 4152107851, "rx_time": 1766016447, "rx_snr": -12.25, "rx_rssi": -116, "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": 136, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00000b18150000b9fd18800625be4543692802585f78008001e8eb910b980112b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403374080, "longitude_i": -38207488, "altitude": 768, "time": 1766016446, "location_source": "LOC_INTERNAL", "PDOP": 95, "ground_speed": 0, "ground_track": 23361000, "sats_in_view": 18, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (36 bytes)

0d00000b18150000b9fd18800625be4543692802585f78008001e8eb910b980112b8010f

Hex Analysis:

Size:	36 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
Meshtastic b2b4📡🌐 (b2b4) Primary	0.000s Reference	-116.0 dBm	-12.25 dB	5	`88` KarB	MediumFast	2025-12-18 00:07:29 UTC	Current
🎄 SkG@Home 📡🌐 (SkGH)	-3.595s Before	-17.0 dBm	11.25 dB	0	`38` SkGT	MediumFast	2025-12-18 00:07:25 UTC	View
ljCR1 (lCR1)	-2.053s Before	-106.0 dBm	-8.75 dB	2	`aa`	MediumFast	2025-12-18 00:07:27 UTC	View
Venturada2🗼🌐☀️ (Vb2)	-1.930s Before	-89.0 dBm	-0.75 dB	2	`61` TO1	MediumFast	2025-12-18 00:07:27 UTC	View
ETH Maverick (ET01)	-1.658s Before	-106.0 dBm	-9.00 dB	2	`61` TO1	MediumFast	2025-12-18 00:07:27 UTC	View
Ocumare Norte🗼🌐 (RRN)	-1.601s Before	-104.0 dBm	-9.25 dB	3	`b0` Vbm , Vb2	MediumFast	2025-12-18 00:07:27 UTC	View
P3 iGate 🏠🌐 (P3N2)	-1.530s Before	-38.0 dBm	10.50 dB	3	`25` P3N1	MediumFast	2025-12-18 00:07:27 UTC	View
XiaoWatt c4c8 🌐🔌 (c4c8)	-1.527s Before	-78.0 dBm	8.75 dB	3	`b0` Vbm , Vb2	MediumFast	2025-12-18 00:07:27 UTC	View
GRN1-Base🗼🌐 🔋 (GRN1)	-1.238s Before	-100.0 dBm	2.75 dB	3	`b0` Vbm , Vb2	MediumFast	2025-12-18 00:07:27 UTC	View
JAGO1_Cañaveral (JAGO)	-0.905s Before	Unknown	11.00 dB	4	`70` JAG2	MediumFast	2025-12-18 00:07:28 UTC	View
[samsepi0l] 📡🌐 (tlg0)	-0.331s Before	-96.0 dBm	-1.00 dB	5	`44` RPT6	MediumFast	2025-12-18 00:07:28 UTC	View
Eagle’s Nest (EAGL)	-0.137s Before	-114.0 dBm	-5.50 dB	3	`74`	MediumFast	2025-12-18 00:07:29 UTC	View
PXT_Home (PXT1)	+0.025s After	-98.0 dBm	7.50 dB	3	`fd` BAS2	MediumFast	2025-12-18 00:07:29 UTC	View
Quixote_JS8_5🗼🌐 (QXT5)	+0.061s After	-116.0 dBm	-12.75 dB	4	-	MediumFast	2025-12-18 00:07:29 UTC	View
Quixote_JS8_7 (QXT7)	+0.066s After	-18.0 dBm	11.50 dB	4	-	MediumFast	2025-12-18 00:07:29 UTC	View
Meshtastic JT01 (JT01)	+0.144s After	-125.0 dBm	-12.75 dB	4	`13` Sir	MediumFast	2025-12-18 00:07:29 UTC	View
Mec Rocket Meco (MRM)	+0.146s After	-111.0 dBm	-13.00 dB	4	`13` Sir	MediumFast	2025-12-18 00:07:29 UTC	View
ETH Goose (ET03)	+0.148s After	-38.0 dBm	10.25 dB	3	`41` ET01	MediumFast	2025-12-18 00:07:29 UTC	View
Karabanchel_Baldur (KarB)	+0.533s After	-107.0 dBm	-10.00 dB	4	`61` Ilde , TO1	MediumFast	2025-12-18 00:07:29 UTC	View
🤖 Nicolas Cage 🌐 (Cage)	+0.993s After	-117.0 dBm	-7.25 dB	5	`bb` 03bb	MediumFast	2025-12-18 00:07:30 UTC	View
X Wing 🚀 Kenobi (Knb2)	+1.440s After	-36.0 dBm	11.75 dB	5	`b5` Knb0	MediumFast	2025-12-18 00:07:30 UTC	View
Fenix (FENX)	+4.178s After	-118.0 dBm	-10.75 dB	2	`61` TO1	MediumFast	2025-12-18 00:07:33 UTC	View

22

Total Receptions

22

Unique Gateways