Packet #28424013 Success

POSITION_APP packet from Kala_CLM (Kala) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	28424013
Mesh Packet ID:	`0xaf926967` Used for correlation across gateways
Timestamp:	2025-12-18 07:00:08 UTC
From Node:	Kala_CLM (Kala)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Quixote_JS8_7 (QXT7)
Channel:	MediumFast
RSSI:	-18 dBm
SNR:	11.0 dBm
Hop Info:	7/7 hops Start: 7, Limit: 0
Relay Node:	None

Payload Data

Protocol: POSITION_APP

Size: 34 bytes

Decoded: Yes

Decoded Data:

Latitude:	40.337408°
Longitude:	-3.440640°
Altitude:	570 m
Satellites:	5
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:	34 bytes
Gateway:	!435b08cc
Channel:	MediumFast
Payload Type:	POSITION_APP
Hop Count:	7 / 7

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`	`!435b08cc` Node ID format
`channel_id`	`MediumFast`
`packet`	`MeshPacket` (34 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3877556925` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`34` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`7` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-18.0` dBm Signal strength at gateway	int32
`rx_snr`	`11.00` dB Signal quality at gateway	float
`rx_time`	`1766041208` 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`	Not set	uint32
`tx_after`	Not set	uint32
`timestamp`	`1766041208.8081322` 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 (7 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!435b08cc`
Position Precision:	15 bits (~729.0m accuracy)
Position precision meters:	`729.0`
Signal Metrics:	RSSI: -18.0 dBm SNR: 11.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	POSITION_APP
Size:	34 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 40.337408, "longitude": -3.44064, "altitude": 570, "sats_in_view": 5, "precision_bits": 15 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!435b08cc", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3877556925, "to": 4294967295, "id": 2945608039, "rx_time": 1766041208, "rx_snr": 11.0, "rx_rssi": -18, "hop_limit": 0, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 0, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00000b18150000f3fd18ba04256ea64369280258a4057802800100980105b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403374080, "longitude_i": -34406400, "altitude": 570, "time": 1766041198, "location_source": "LOC_INTERNAL", "PDOP": 676, "ground_speed": 2, "ground_track": 0, "sats_in_view": 5, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (34 bytes)

0d00000b18150000f3fd18ba04256ea64369280258a4057802800100980105b8010f

Hex Analysis:

Size:	34 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
Quixote_JS8_7 (QXT7) Primary	0.000s Reference	-18.0 dBm	11.00 dB	7	-	MediumFast	2025-12-18 07:00:08 UTC	Current
[samsepi0l] 📡🌐 (tlg0)	-4.300s Before	-87.0 dBm	4.50 dB	2	`fc` 74fc , Anu2	MediumFast	2025-12-18 07:00:04 UTC	View
GRN1-Base🗼🌐 🔋 (GRN1)	-3.762s Before	-109.0 dBm	-9.00 dB	2	`fc` Anu2	MediumFast	2025-12-18 07:00:05 UTC	View
Eagle’s Nest (EAGL)	-2.202s Before	-106.0 dBm	2.25 dB	4	`a4` Raq1	MediumFast	2025-12-18 07:00:06 UTC	View
Karabanchel_Baldur (KarB)	-1.572s Before	-106.0 dBm	-12.50 dB	5	`61` Ilde , TO1	MediumFast	2025-12-18 07:00:07 UTC	View
Fenix (FENX)	-1.421s Before	-116.0 dBm	-9.00 dB	5	`61` TO1	MediumFast	2025-12-18 07:00:07 UTC	View
Meshtastic b2b4📡🌐 (b2b4)	-1.170s Before	-107.0 dBm	-5.25 dB	5	`2d` SkyB	MediumFast	2025-12-18 07:00:07 UTC	View
🤖 Nicolas Cage 🌐 (Cage)	-1.093s Before	-95.0 dBm	10.25 dB	5	`6c` f56c	MediumFast	2025-12-18 07:00:07 UTC	View
Ocumare Norte🗼🌐 (RRN)	-0.937s Before	-104.0 dBm	-9.50 dB	6	`6a` b76a	MediumFast	2025-12-18 07:00:07 UTC	View
XiaoWatt c4c8 🌐🔌 (c4c8)	-0.858s Before	-103.0 dBm	-12.50 dB	6	`6a` b76a	MediumFast	2025-12-18 07:00:07 UTC	View
tizon (Sylv)	-0.852s Before	-115.0 dBm	-6.25 dB	5	`2d` SkyB	MediumFast	2025-12-18 07:00:07 UTC	View
ETH Goose (ET03)	-0.613s Before	-43.0 dBm	11.00 dB	6	`41` ET01	MediumFast	2025-12-18 07:00:08 UTC	View
Wake Up, Neo...📡 (NEO)	-0.552s Before	-101.0 dBm	-6.75 dB	6	`f5` RPT4	MediumFast	2025-12-18 07:00:08 UTC	View
🎄 SkG@Home 📡🌐 (SkGH)	-0.486s Before	-83.0 dBm	-13.25 dB	6	`56` 8d56 , 3d56	MediumFast	2025-12-18 07:00:08 UTC	View
Meshtastic 1760 (1760)	-0.211s Before	-115.0 dBm	1.25 dB	6	`f5` RPT4	MediumFast	2025-12-18 07:00:08 UTC	View
Meshtastic 18a4 (18a4)	-0.034s Before	Unknown	Unknown	7	`60` 1760	MediumFast	2025-12-18 07:00:08 UTC	View
Quixote_JS8_5🗼🌐 (QXT5)	-0.003s Before	-115.0 dBm	-5.50 dB	7	-	MediumFast	2025-12-18 07:00:08 UTC	View
PXT_Home (PXT1)	+0.366s After	-115.0 dBm	-7.75 dB	7	`a4` HelB	MediumFast	2025-12-18 07:00:09 UTC	View
Aldinra_1640_🗼_🌐 (AldB)	+0.510s After	-103.0 dBm	4.50 dB	7	`60` 1760	MediumFast	2025-12-18 07:00:09 UTC	View
ETH Maverick (ET01)	+0.875s After	-107.0 dBm	-11.00 dB	5	`61` TO1	MediumFast	2025-12-18 07:00:09 UTC	View
Malasaña Solar ☀️ (🌇)	+1.358s After	-119.0 dBm	-11.50 dB	7	`08`	MediumFast	2025-12-18 07:00:10 UTC	View
Varela Bot 🏡🤖 (🤖)	+3.117s After	-81.0 dBm	9.25 dB	5	`1c` 🏡	MediumFast	2025-12-18 07:00:11 UTC	View

22

Total Receptions

22

Unique Gateways