Packet #25414670 Success

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

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	25414670
Mesh Packet ID:	`0x1a9f75c4` Used for correlation across gateways
Timestamp:	2025-12-03 13:44:51 UTC
From Node:	CPZS_Home_🏠🎄 (CPZH)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Meshtastic 18a4 (18a4)
Channel:	MediumFast
RSSI:	Unknown
SNR:	Unknown
Hop Info:	6/6 hops Start: 6, Limit: 0
Relay Node:	`60` 1760 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:	!c0c318a4
Channel:	MediumFast
Payload Type:	POSITION_APP
Hop Count:	6 / 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
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!c0c318a4` 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`	Not set	uint32
`hop_start`	`6` Initial hop limit	uint32
`hops_taken`	`6` Calculated: hop_start - hop_limit	derived
`rx_rssi`	Not set	int32
`rx_snr`	Not set	float
`rx_time`	`1764769670` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	`64` Packet priority level	enum
`delayed`	Not set	enum
`channel`	Not set	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`96` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1764769491.9785414` 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 (6 hops)

MQTT-Specific Fields

Gateway ID:	`!c0c318a4`
Position Precision:	14 bits (~1500.0m accuracy)
Position precision meters:	`1500.0`

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": "!c0c318a4", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1127905172, "to": 4294967295, "id": 446657988, "rx_time": 1764769670, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 0, "hop_start": 6, "via_mqtt": 0, "want_ack": 0, "priority": 64, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 96, "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
Meshtastic 18a4 (18a4) Primary	0.000s Reference	Unknown	Unknown	6	`60` 1760	MediumFast	2025-12-03 13:44:51 UTC	Current
Venturada2🗼🌐☀️ (Vb2)	-1.882s Before	-90.0 dBm	4.00 dB	3	`61` TO1	MediumFast	2025-12-03 13:44:50 UTC	View
ETH Maverick (ET01)	-1.612s Before	-104.0 dBm	-4.50 dB	3	`61` TO1	MediumFast	2025-12-03 13:44:50 UTC	View
Fenix (FENX)	-1.557s Before	-118.0 dBm	-12.75 dB	3	`61` TO1	MediumFast	2025-12-03 13:44:50 UTC	View
JAGO1_Cañaveral (JAGO)	-1.535s Before	-121.0 dBm	-11.25 dB	4	`b0` Vbm , PUPM , Vb2	MediumFast	2025-12-03 13:44:50 UTC	View
JPL73B4_Node (JPL4)	-1.518s Before	-95.0 dBm	-7.25 dB	4	`b0` Vbm , Vb2	MediumFast	2025-12-03 13:44:50 UTC	View
GRN1-Base🗼🌐 🔋 (GRN1)	-1.182s Before	-95.0 dBm	4.50 dB	4	`b0` Vbm , Vb2	MediumFast	2025-12-03 13:44:50 UTC	View
[whiterose] 📡🌐 (tlg3)	-0.961s Before	Unknown	Unknown	5	`38` tlg0	MediumFast	2025-12-03 13:44:51 UTC	View
Ocumare Norte🗼🌐 (RRN)	-0.816s Before	-5.0 dBm	11.00 dB	5	`6f` RRN4	MediumFast	2025-12-03 13:44:51 UTC	View
Wake Up, Neo...📡 (NEO)	-0.601s Before	-97.0 dBm	-1.25 dB	5	`f5` RPT4	MediumFast	2025-12-03 13:44:51 UTC	View
XiaoWatt c4c8 🌐🔌 (c4c8)	-0.470s Before	-78.0 dBm	8.50 dB	4	`b0` Vbm , Vb2	MediumFast	2025-12-03 13:44:51 UTC	View
ETH Goose (ET03)	-0.328s Before	-33.0 dBm	11.00 dB	4	`41` ET01	MediumFast	2025-12-03 13:44:51 UTC	View
[samsepi0l] 📡🌐 (tlg0)	-0.311s Before	-97.0 dBm	-2.25 dB	4	-	MediumFast	2025-12-03 13:44:51 UTC	View
Meshtastic 1760 (1760)	-0.260s Before	-125.0 dBm	-7.25 dB	5	`f5` RPT4	MediumFast	2025-12-03 13:44:51 UTC	View
Eagle’s Nest (EAGL)	-0.063s Before	-113.0 dBm	-3.75 dB	4	`a4` Raq1	MediumFast	2025-12-03 13:44:51 UTC	View
PXT_Home (PXT1)	+0.008s After	-115.0 dBm	-13.00 dB	5	`48` mfms	MediumFast	2025-12-03 13:44:51 UTC	View
base d580 (d580)	+0.038s After	-110.0 dBm	-9.25 dB	6	`04` CV01	MediumFast	2025-12-03 13:44:52 UTC	View
P3 iGate 🏠🌐 (P3N2)	+0.300s After	-37.0 dBm	11.00 dB	5	`25` P3N1	MediumFast	2025-12-03 13:44:52 UTC	View
Mec Rocket Meco (MRM)	+1.241s After	-104.0 dBm	-8.00 dB	5	`fc` 74fc , Anu2	MediumFast	2025-12-03 13:44:53 UTC	View
Karabanchel_Baldur (KarB)	+4.749s After	-88.0 dBm	7.00 dB	5	`2d` SkyB	MediumFast	2025-12-03 13:44:56 UTC	View
Meshtastic b2b4📡🌐 (b2b4)	+4.755s After	-108.0 dBm	-7.75 dB	5	`2d` SkyB	MediumFast	2025-12-03 13:44:56 UTC	View
🤖 Nicolas Cage 🌐 (Cage)	+5.041s After	-42.0 dBm	11.00 dB	5	`2d` SkyB	MediumFast	2025-12-03 13:44:57 UTC	View
tizon (Sylv)	+5.103s After	-125.0 dBm	-13.50 dB	5	`2d` SkyB	MediumFast	2025-12-03 13:44:57 UTC	View
MeshMadrid 00 🗼☀️ 🌐 (MM00)	+5.110s After	-117.0 dBm	-11.75 dB	5	`2d` SkyB	MediumFast	2025-12-03 13:44:57 UTC	View
ETH Gripen (ET39)	+5.835s 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