Packet #27772958 Success

POSITION_APP packet from HeliosBase 🔆 (HelB) to !ffffffff

20
Total Receptions
20
Unique Gateways
4
Hop Count
28
Payload Bytes
Packet Information
Database ID: 27772958
Mesh Packet ID: 0x0ac556b3
Used for correlation across gateways
Timestamp: 2025-12-15 07:43:27 UTC
From Node: HeliosBase 🔆 (HelB)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: P3 iGate 🏠🌐 (P3N2)
Channel: MediumFast
RSSI: -36 dBm
SNR: 11.25 dBm
Hop Info: 4/5 hops
Start: 5, Limit: 1
Relay Node: 25 P3N1
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:40.313242°
Longitude:-3.877683°
Altitude:656 m
Precision:19 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:!e00cd7d4
Channel:MediumFast
Payload Type:POSITION_APP
Hop Count:4 / 5
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !e00cd7d4
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 3679544228
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 1
Remaining hops allowed 		uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 4
Calculated: hop_start - hop_limit 		derived
rx_rssi -36.0 dBm
Signal strength at gateway 		int32
rx_snr 11.25 dB
Signal quality at gateway 		float
rx_time 1765784606
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 37
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765784607.9023197
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
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Full GPS precision shared
  • ⚠ Multi-hop path visible (4 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !e00cd7d4
Position Precision: 19 bits (~45.0m accuracy)
Position precision meters: 45.0
Signal Metrics: RSSI: -36.0 dBm
SNR: 11.25 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": 40.3132416, "longitude": -3.8776832, "altitude": 656, "sats_in_view": null, "precision_bits": 19 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!e00cd7d4", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3679544228, "to": 4294967295, "id": 180704947, "rx_time": 1765784606, "rx_snr": 11.25, "rx_rssi": -36, "hop_limit": 1, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 37, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00500718150050b0fd1890052507bc3f6928037800800100b80113", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403132416, "longitude_i": -38776832, "altitude": 656, "time": 1765784583, "location_source": "LOC_EXTERNAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 19, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (28 bytes)
0d00500718150050b0fd1890052507bc3f6928037800800100b80113
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
P3 iGate 🏠🌐 (P3N2) Primary 0.000s
Reference 		-36.0 dBm 11.25 dB 4 25 P3N1 MediumFast 2025-12-15 07:43:27 UTC Current
PXT_Home (PXT1) -2.936s
Before 		-113.0 dBm -6.50 dB 0 a4 HelB MediumFast 2025-12-15 07:43:24 UTC View
Venturada2 🗼🌞 (Vb2) -1.774s
Before 		-99.0 dBm -7.25 dB 2 52 MediumFast 2025-12-15 07:43:26 UTC View
Ocumare Norte🗼🌐 (RRN) -1.468s
Before 		-105.0 dBm -9.75 dB 3 b0 Vbm , Vb2 MediumFast 2025-12-15 07:43:26 UTC View
XiaoWatt c4c8 🌐🔌 (c4c8) -1.439s
Before 		-78.0 dBm 8.25 dB 3 b0 Vbm , Vb2 MediumFast 2025-12-15 07:43:26 UTC View
NodeJPL6 (JPL6) -1.362s
Before 		-98.0 dBm -6.25 dB 3 b0 Vb2 MediumFast 2025-12-15 07:43:26 UTC View
GRN1-Base🗼🌐 🔋 (GRN1) -1.126s
Before 		-96.0 dBm 2.00 dB 3 b0 Vbm , Vb2 MediumFast 2025-12-15 07:43:26 UTC View
Meshtastic b2b4📡🌐 (b2b4) -1.088s
Before 		-114.0 dBm -13.25 dB 3 28 DLCr MediumFast 2025-12-15 07:43:26 UTC View
Fenix (FENX) -0.391s
Before 		-110.0 dBm -3.75 dB 3 2d SkyB MediumFast 2025-12-15 07:43:27 UTC View
tizon (Sylv) -0.389s
Before 		-104.0 dBm 3.25 dB 3 2d SkyB MediumFast 2025-12-15 07:43:27 UTC View
Getafe ☀️ (GTF) -0.342s
Before 		-125.0 dBm -14.00 dB 3 2d SkyB MediumFast 2025-12-15 07:43:27 UTC View
Quixote_JS8_5🗼🌐 (QXT5) -0.177s
Before 		-115.0 dBm -12.50 dB 4 - MediumFast 2025-12-15 07:43:27 UTC View
Quixote_JS8_7 (QXT7) -0.174s
Before 		-18.0 dBm 10.75 dB 4 - MediumFast 2025-12-15 07:43:27 UTC View
Rodashtastic🗼🌐 (RDSt) -0.132s
Before 		-116.0 dBm -6.50 dB 4 e8 GRN1 MediumFast 2025-12-15 07:43:27 UTC View
Justicia Meshtastic b0e4 🏢 (b0e4) -0.015s
Before 		-117.0 dBm -8.75 dB 4 25 🌇 MediumFast 2025-12-15 07:43:27 UTC View
Eagle’s Nest (EAGL) +0.293s
After 		-118.0 dBm -8.25 dB 4 74 MediumFast 2025-12-15 07:43:28 UTC View
ETH Goose (ET03) +0.872s
After 		-29.0 dBm 11.25 dB 4 41 ET01 MediumFast 2025-12-15 07:43:28 UTC View
JAGO1_Cañaveral (JAGO) +1.216s
After 		-116.0 dBm -7.50 dB 5 94 🛰 , 4IOX MediumFast 2025-12-15 07:43:29 UTC View
X Wing 🚀 Kenobi (Knb2) +26.842s
After 		-105.0 dBm -4.50 dB 3 aa CR1 MediumFast 2025-12-15 07:43:54 UTC View
Mikasa 🧣 📟 (🧣) +115.857s
After 		-88.0 dBm 0.25 dB 4 dc f1dc MediumFast 2025-12-15 07:45:23 UTC View
20

Total Receptions

20

Unique Gateways