Packet #27786227 Success

POSITION_APP packet from COSLADA f1dc 🇪🇦🛰️ (f1dc) to !ffffffff

23
Total Receptions
23
Unique Gateways
3
Hop Count
26
Payload Bytes
Packet Information
Database ID: 27786227
Mesh Packet ID: 0xb453b35a
Used for correlation across gateways
Timestamp: 2025-12-15 08:59:58 UTC
From Node: COSLADA f1dc 🇪🇦🛰️ (f1dc)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Zion 🗼 (Zion)
Channel: MediumFast
RSSI: -110 dBm
SNR: -10.75 dBm
Hop Info: 3/4 hops
Start: 4, Limit: 1
Relay Node: 11 BAS1
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: 26 bytes
Decoded: Yes
Decoded Data:
Latitude:40.429158°
Longitude:-3.545498°
Altitude:664 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:26 bytes
Gateway:!849c2e30
Channel:MediumFast
Payload Type:POSITION_APP
Hop Count:3 / 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 !849c2e30
Node ID format
channel_id MediumFast
packet MeshPacket (26 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2661347804
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 26 bytes size
hop_limit 1
Remaining hops allowed 		uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 3
Calculated: hop_start - hop_limit 		derived
rx_rssi -110.0 dBm
Signal strength at gateway 		int32
rx_snr -10.75 dB
Signal quality at gateway 		float
rx_time 1765789197
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 17
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765789198.8409736
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 (3 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !849c2e30
Position Precision: 15 bits (~729.0m accuracy)
Position precision meters: 729.0
Signal Metrics: RSSI: -110.0 dBm
SNR: -10.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:26 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.4291584, "longitude": -3.5454976, "altitude": 664, "sats_in_view": null, "precision_bits": 15 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!849c2e30", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2661347804, "to": 4294967295, "id": 3025384282, "rx_time": 1765789197, "rx_snr": -10.75, "rx_rssi": -110, "hop_limit": 1, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 17, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00001918150000e3fd189805250bce3f69280258f803b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 404291584, "longitude_i": -35454976, "altitude": 664, "time": 1765789195, "location_source": "LOC_INTERNAL", "PDOP": 504, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (26 bytes)
0d00001918150000e3fd189805250bce3f69280258f803b8010f
Hex Analysis:
Size:26 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
Zion 🗼 (Zion) Primary 0.000s
Reference 		-110.0 dBm -10.75 dB 3 11 BAS1 MediumFast 2025-12-15 08:59:58 UTC Current
Venturada2 🗼🌞 (Vb2) -2.094s
Before 		-108.0 dBm -11.25 dB 0 dc f1dc MediumFast 2025-12-15 08:59:56 UTC View
Ocumare Norte🗼🌐 (RRN) -1.795s
Before 		-108.0 dBm -13.25 dB 1 b0 Vbm , Vb2 MediumFast 2025-12-15 08:59:57 UTC View
JAGO1_Cañaveral (JAGO) -1.792s
Before 		-123.0 dBm -13.75 dB 1 b0 Vbm , PUPM , Vb2 MediumFast 2025-12-15 08:59:57 UTC View
XiaoWatt c4c8 🌐🔌 (c4c8) -1.763s
Before 		-80.0 dBm -10.25 dB 1 b0 Vbm , Vb2 MediumFast 2025-12-15 08:59:57 UTC View
GRN1-Base🗼🌐 🔋 (GRN1) -1.415s
Before 		-98.0 dBm 0.75 dB 1 b0 Vbm , Vb2 MediumFast 2025-12-15 08:59:57 UTC View
Karabanchel_Baldur (KarB) -1.143s
Before 		-94.0 dBm 2.00 dB 2 1c 🐷 MediumFast 2025-12-15 08:59:57 UTC View
Meshtastic b2b4📡🌐 (b2b4) -1.140s
Before 		-118.0 dBm -12.00 dB 2 1c 🐷 MediumFast 2025-12-15 08:59:57 UTC View
🎄 SkG@Home 📡🌐 (SkGH) -1.052s
Before 		-83.0 dBm -13.00 dB 2 56 8d56 , 3d56 MediumFast 2025-12-15 08:59:57 UTC View
Quass001 ☄️ (Q001) -0.824s
Before 		-50.0 dBm 10.00 dB 2 3a Q005 MediumFast 2025-12-15 08:59:58 UTC View
tizon (Sylv) -0.814s
Before 		-107.0 dBm 0.50 dB 2 1c 🐷 MediumFast 2025-12-15 08:59:58 UTC View
Fenix (FENX) -0.802s
Before 		-115.0 dBm -10.00 dB 2 1c 🐷 MediumFast 2025-12-15 08:59:58 UTC View
ETH Maverick (ET01) -0.798s
Before 		-107.0 dBm -5.50 dB 1 61 TO1 MediumFast 2025-12-15 08:59:58 UTC View
Getafe ☀️ (GTF) -0.772s
Before 		-119.0 dBm -8.50 dB 2 1c 🐷 MediumFast 2025-12-15 08:59:58 UTC View
NodeJPL6 (JPL6) -0.544s
Before 		-100.0 dBm -13.25 dB 1 b0 Vb2 MediumFast 2025-12-15 08:59:58 UTC View
Skynet (Sky) -0.457s
Before 		-81.0 dBm -11.00 dB 2 1c 🐷 MediumFast 2025-12-15 08:59:58 UTC View
P3 iGate 🏠🌐 (P3N2) -0.241s
Before 		-39.0 dBm 11.00 dB 2 25 P3N1 MediumFast 2025-12-15 08:59:58 UTC View
Eagle’s Nest (EAGL) -0.225s
Before 		-116.0 dBm -7.00 dB 2 74 MediumFast 2025-12-15 08:59:58 UTC View
srs-h3 📡🌐 (srs0) -0.222s
Before 		-121.0 dBm -14.00 dB 3 bb 03bb MediumFast 2025-12-15 08:59:58 UTC View
PXT_Home (PXT1) -0.200s
Before 		-114.0 dBm -7.50 dB 3 a4 HelB MediumFast 2025-12-15 08:59:58 UTC View
ETH Goose (ET03) +0.114s
After 		-30.0 dBm 10.75 dB 2 41 ET01 MediumFast 2025-12-15 08:59:58 UTC View
Quixote_JS8_5🗼🌐 (QXT5) +0.436s
After 		-114.0 dBm -7.50 dB 3 - MediumFast 2025-12-15 08:59:59 UTC View
Quixote_JS8_7 (QXT7) +0.443s
After 		-18.0 dBm 10.75 dB 3 - MediumFast 2025-12-15 08:59:59 UTC View
23

Total Receptions

23

Unique Gateways