Packet #25414688 Success

POSITION_APP packet from CPZS_Home_🏠🎄 (CPZH) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	25414688
Mesh Packet ID:	`0x1a9f75c4` Used for correlation across gateways
Timestamp:	2025-12-03 13:44:57 UTC
From Node:	CPZS_Home_🏠🎄 (CPZH)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	MeshMadrid 00 🗼☀️ 🌐 (MM00)
Channel:	MediumFast
RSSI:	-117 dBm
SNR:	-11.75 dBm
Hop Info:	5/6 hops Start: 6, Limit: 1
Relay Node:	`2d` SkyB 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: 22 bytes

Decoded: Yes

Decoded Data:

Latitude:	40.173568°
Longitude:	-3.630694°
Precision:	14 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:	22 bytes
Gateway:	!326a9896
Channel:	MediumFast
Payload Type:	POSITION_APP
Hop Count:	5 / 6

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`	`!326a9896` Node ID format
`channel_id`	`MediumFast`
`packet`	`MeshPacket` (22 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1127905172` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`22` bytes	size
`hop_limit`	`1` Remaining hops allowed	uint32
`hop_start`	`6` Initial hop limit	uint32
`hops_taken`	`5` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-117.0` dBm Signal strength at gateway	int32
`rx_snr`	`-11.75` dB Signal quality at gateway	float
`rx_time`	`1764761383` 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`	`45` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1764769497.0890167` 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: ~1500.0m 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:	`!326a9896`
Position Precision:	14 bits (~1500.0m accuracy)
Position precision meters:	`1500.0`
Signal Metrics:	RSSI: -117.0 dBm SNR: -11.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	POSITION_APP
Size:	22 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 40.173568, "longitude": -3.6306944, "altitude": null, "sats_in_view": null, "precision_bits": 14 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!326a9896", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1127905172, "to": 4294967295, "id": 446657988, "rx_time": 1764761383, "rx_snr": -11.75, "rx_rssi": -117, "hop_limit": 1, "hop_start": 6, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 45, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000f217150000d6fd25cc3e306928014800b8010e", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 401735680, "longitude_i": -36306944, "time": 1764769484, "location_source": "LOC_MANUAL", "altitude_hae": 0, "precision_bits": 14, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (22 bytes)

0d0000f217150000d6fd25cc3e306928014800b8010e

Hex Analysis:

Size:	22 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
MeshMadrid 00 🗼☀️ 🌐 (MM00) Primary	0.000s Reference	-117.0 dBm	-11.75 dB	5	`2d` SkyB	MediumFast	2025-12-03 13:44:57 UTC	Current
Venturada2🗼🌐☀️ (Vb2)	-6.992s Before	-90.0 dBm	4.00 dB	3	`61` TO1	MediumFast	2025-12-03 13:44:50 UTC	View
ETH Maverick (ET01)	-6.722s Before	-104.0 dBm	-4.50 dB	3	`61` TO1	MediumFast	2025-12-03 13:44:50 UTC	View
Fenix (FENX)	-6.668s Before	-118.0 dBm	-12.75 dB	3	`61` TO1	MediumFast	2025-12-03 13:44:50 UTC	View
JAGO1_Cañaveral (JAGO)	-6.645s Before	-121.0 dBm	-11.25 dB	4	`b0` Vbm , PUPM , Vb2	MediumFast	2025-12-03 13:44:50 UTC	View
JPL73B4_Node (JPL4)	-6.628s Before	-95.0 dBm	-7.25 dB	4	`b0` Vbm , Vb2	MediumFast	2025-12-03 13:44:50 UTC	View
GRN1-Base🗼🌐 🔋 (GRN1)	-6.293s Before	-95.0 dBm	4.50 dB	4	`b0` Vbm , Vb2	MediumFast	2025-12-03 13:44:50 UTC	View
[whiterose] 📡🌐 (tlg3)	-6.071s Before	Unknown	Unknown	5	`38` tlg0	MediumFast	2025-12-03 13:44:51 UTC	View
Ocumare Norte🗼🌐 (RRN)	-5.927s Before	-5.0 dBm	11.00 dB	5	`6f` RRN4	MediumFast	2025-12-03 13:44:51 UTC	View
Wake Up, Neo...📡 (NEO)	-5.711s Before	-97.0 dBm	-1.25 dB	5	`f5` RPT4	MediumFast	2025-12-03 13:44:51 UTC	View
XiaoWatt c4c8 🌐🔌 (c4c8)	-5.581s Before	-78.0 dBm	8.50 dB	4	`b0` Vbm , Vb2	MediumFast	2025-12-03 13:44:51 UTC	View
ETH Goose (ET03)	-5.439s Before	-33.0 dBm	11.00 dB	4	`41` ET01	MediumFast	2025-12-03 13:44:51 UTC	View
[samsepi0l] 📡🌐 (tlg0)	-5.421s Before	-97.0 dBm	-2.25 dB	4	-	MediumFast	2025-12-03 13:44:51 UTC	View
Meshtastic 1760 (1760)	-5.370s Before	-125.0 dBm	-7.25 dB	5	`f5` RPT4	MediumFast	2025-12-03 13:44:51 UTC	View
Eagle’s Nest (EAGL)	-5.173s Before	-113.0 dBm	-3.75 dB	4	`a4` Raq1	MediumFast	2025-12-03 13:44:51 UTC	View
Meshtastic 18a4 (18a4)	-5.110s Before	Unknown	Unknown	6	`60` 1760	MediumFast	2025-12-03 13:44:51 UTC	View
PXT_Home (PXT1)	-5.102s Before	-115.0 dBm	-13.00 dB	5	`48` mfms	MediumFast	2025-12-03 13:44:51 UTC	View
base d580 (d580)	-5.073s Before	-110.0 dBm	-9.25 dB	6	`04` CV01	MediumFast	2025-12-03 13:44:52 UTC	View
P3 iGate 🏠🌐 (P3N2)	-4.810s Before	-37.0 dBm	11.00 dB	5	`25` P3N1	MediumFast	2025-12-03 13:44:52 UTC	View
Mec Rocket Meco (MRM)	-3.869s Before	-104.0 dBm	-8.00 dB	5	`fc` 74fc , Anu2	MediumFast	2025-12-03 13:44:53 UTC	View
Karabanchel_Baldur (KarB)	-0.362s Before	-88.0 dBm	7.00 dB	5	`2d` SkyB	MediumFast	2025-12-03 13:44:56 UTC	View
Meshtastic b2b4📡🌐 (b2b4)	-0.355s Before	-108.0 dBm	-7.75 dB	5	`2d` SkyB	MediumFast	2025-12-03 13:44:56 UTC	View
🤖 Nicolas Cage 🌐 (Cage)	-0.069s Before	-42.0 dBm	11.00 dB	5	`2d` SkyB	MediumFast	2025-12-03 13:44:57 UTC	View
tizon (Sylv)	-0.007s Before	-125.0 dBm	-13.50 dB	5	`2d` SkyB	MediumFast	2025-12-03 13:44:57 UTC	View
ETH Gripen (ET39)	+0.724s After	-80.0 dBm	-10.25 dB	5	`2d` SkyB	MediumFast	2025-12-03 13:44:57 UTC	View

25

Total Receptions

25

Unique Gateways