Packet #27855209 Success

POSITION_APP packet from Pozuelo (POZ1) to !ffffffff

25
Total Receptions
25
Unique Gateways
4
Hop Count
28
Payload Bytes
Packet Information
Database ID: 27855209
Mesh Packet ID: 0x355a4573
Used for correlation across gateways
Timestamp: 2025-12-15 16:44:31 UTC
From Node: Pozuelo (POZ1)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Vaguada solar (VAGs)
Channel: MediumFast
RSSI: -81 dBm
SNR: 1.5 dBm
Hop Info: 4/4 hops
Start: 4, Limit: 0
Relay Node: f5 RPT4
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: 28 bytes
Decoded: Yes
Decoded Data:
Latitude:40.442266°
Longitude:-3.794534°
Altitude:700 m
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:28 bytes
Gateway:!a09db9b3
Channel:MediumFast
Payload Type:POSITION_APP
Hop Count:4 / 4
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

FieldValue
gateway_id !a09db9b3
Node ID format
channel_id MediumFast
packet MeshPacket (28 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1770271252
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 28 bytes size
hop_limit Not set uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 4
Calculated: hop_start - hop_limit 		derived
rx_rssi -81.0 dBm
Signal strength at gateway 		int32
rx_snr 1.50 dB
Signal quality at gateway 		float
rx_time 1765817064
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 245
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765817071.1783013
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 (4 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !a09db9b3
Position Precision: 15 bits (~729.0m accuracy)
Position precision meters: 729.0
Signal Metrics: RSSI: -81.0 dBm
SNR: 1.50 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:28 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.4422656, "longitude": -3.7945344, "altitude": 700, "sats_in_view": null, "precision_bits": 15 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!a09db9b3", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1770271252, "to": 4294967295, "id": 895108467, "rx_time": 1765817064, "rx_snr": 1.5, "rx_rssi": -81, "hop_limit": 0, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 245, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00001b18150000bdfd18bc0525ea3a406928017800800100b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 404422656, "longitude_i": -37945344, "altitude": 700, "time": 1765817066, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (28 bytes)
0d00001b18150000bdfd18bc0525ea3a406928017800800100b8010f
Hex Analysis:
Size:28 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
Vaguada solar (VAGs) Primary 0.000s
Reference 		-81.0 dBm 1.50 dB 4 f5 RPT4 MediumFast 2025-12-15 16:44:31 UTC Current
Pozuelo (POZ1) -3.468s
Before 		Unknown Unknown 0 14 POZ1 MediumFast 2025-12-15 16:44:27 UTC View
Wake Up, Neo...📡 (NEO) -3.388s
Before 		-106.0 dBm -8.25 dB 0 14 POZ1 MediumFast 2025-12-15 16:44:27 UTC View
Meshtastic 26b0 (26b0) -3.384s
Before 		-106.0 dBm -9.00 dB 0 14 POZ1 , Bssr MediumFast 2025-12-15 16:44:27 UTC View
JPL73B4_Node (JPL4) -2.972s
Before 		-111.0 dBm -9.00 dB 1 b0 26b0 MediumFast 2025-12-15 16:44:28 UTC View
JAGO1_Cañaveral (JAGO) -2.969s
Before 		-122.0 dBm -13.00 dB 1 b0 Vbm , PUPM , 26b0 MediumFast 2025-12-15 16:44:28 UTC View
XiaoWatt c4c8 🌐🔌 (c4c8) -2.944s
Before 		-81.0 dBm 7.25 dB 1 b0 Vbm , 26b0 MediumFast 2025-12-15 16:44:28 UTC View
GRN1-Base🗼🌐 🔋 (GRN1) -2.632s
Before 		-100.0 dBm -5.25 dB 1 b0 Vbm , 26b0 MediumFast 2025-12-15 16:44:28 UTC View
JPL73B2_Node (JPL2) -2.620s
Before 		-95.0 dBm -13.00 dB 1 b0 Vbm , 26b0 MediumFast 2025-12-15 16:44:28 UTC View
EA4GGL (4GGL) -2.194s
Before 		-126.0 dBm -13.00 dB 1 25 🌇 MediumFast 2025-12-15 16:44:28 UTC View
Justicia Meshtastic b0e4 🏢 (b0e4) -2.177s
Before 		-119.0 dBm -13.50 dB 1 25 🌇 MediumFast 2025-12-15 16:44:29 UTC View
Ocumare Norte🗼🌐 (RRN) -1.711s
Before 		-81.0 dBm 8.75 dB 3 96 TCLS MediumFast 2025-12-15 16:44:29 UTC View
ETH Maverick (ET01) -1.707s
Before 		-108.0 dBm -6.50 dB 1 61 TO1 MediumFast 2025-12-15 16:44:29 UTC View
MakeSpaceMadrid (MKS) -1.581s
Before 		-96.0 dBm 9.75 dB 2 d1 MKS2 MediumFast 2025-12-15 16:44:29 UTC View
Eagle’s Nest (EAGL) -1.252s
Before 		-112.0 dBm -2.25 dB 2 74 MediumFast 2025-12-15 16:44:29 UTC View
Quass001 ☄️ (Q001) -1.109s
Before 		-47.0 dBm 10.50 dB 3 3a Q005 MediumFast 2025-12-15 16:44:30 UTC View
PXT_Home (PXT1) -1.033s
Before 		-95.0 dBm 9.75 dB 2 fd BAS2 MediumFast 2025-12-15 16:44:30 UTC View
ETH Goose (ET03) -0.788s
Before 		-111.0 dBm -7.50 dB 2 72 Knb1 MediumFast 2025-12-15 16:44:30 UTC View
Skynet (Sky) -0.672s
Before 		-82.0 dBm 7.00 dB 2 1c 🐷 MediumFast 2025-12-15 16:44:30 UTC View
tizon (Sylv) -0.565s
Before 		-107.0 dBm 0.75 dB 2 1c 🐷 MediumFast 2025-12-15 16:44:30 UTC View
Getafe ☀️ (GTF) -0.511s
Before 		-120.0 dBm -10.50 dB 2 1c 🐷 MediumFast 2025-12-15 16:44:30 UTC View
Meshtastic 1760 (1760) -0.355s
Before 		-119.0 dBm -2.75 dB 4 f5 RPT4 MediumFast 2025-12-15 16:44:30 UTC View
Quixote_JS8_5🗼🌐 (QXT5) -0.350s
Before 		-114.0 dBm -12.00 dB 3 - MediumFast 2025-12-15 16:44:30 UTC View
Quixote_JS8_7 (QXT7) -0.348s
Before 		-18.0 dBm 10.75 dB 3 - MediumFast 2025-12-15 16:44:30 UTC View
Meshtastic b2b4📡🌐 (b2b4) +0.083s
After 		-117.0 dBm -13.25 dB 3 28 DLCr MediumFast 2025-12-15 16:44:31 UTC View
25

Total Receptions

25

Unique Gateways