Packet #14000564 Success

POSITION_APP packet from XiaoWatt c4c8 🌐🔌 (c4c8) to !ffffffff

17
Total Receptions
17
Unique Gateways
3
Hop Count
20
Payload Bytes
Packet Information
Database ID: 14000564
Mesh Packet ID: 0x38afe68f
Used for correlation across gateways
Timestamp: 2025-10-07 12:38:38 UTC
From Node: XiaoWatt c4c8 🌐🔌 (c4c8)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Quass002 ☄️ (Q002)
Channel: MediumSlow
RSSI: Unknown
SNR: Unknown
Hop Info: 3/4 hops
Start: 4, Limit: 1
Payload Data
Protocol: POSITION_APP
Size: 20 bytes
Decoded: Yes
Decoded Data:
Latitude:40.475034°
Longitude:-3.565158°
Precision:10 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:20 bytes
Gateway:!9e9a9530
Channel:MediumSlow
Payload Type:POSITION_APP
Hop Count:3 / 4
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumSlow
+ 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

FieldValue
gateway_id !9e9a9530
Node ID format
channel_id MediumSlow
packet MeshPacket (20 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 864535752
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 20 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 Not set int32
rx_snr Not set float
rx_time 1759840717
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 44
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1759840718.007111
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: MediumSlow
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~23300.0m accuracy
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (3 hops)
MQTT-Specific Fields
Gateway ID: !9e9a9530
Position Precision: 10 bits (~23300.0m accuracy)
Position precision meters: 23300.0
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:20 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.4750336, "longitude": -3.5651584, "altitude": null, "sats_in_view": null, "precision_bits": 10 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!9e9a9530", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 864535752, "to": 4294967295, "id": 951051919, "rx_time": 1759840717, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 1, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 64, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 44, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00002018150000e0fd25bc09e5682801b8010a", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 404750336, "longitude_i": -35651584, "time": 1759840700, "location_source": "LOC_MANUAL", "precision_bits": 10, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (20 bytes)
0d00002018150000e0fd25bc09e5682801b8010a
Hex Analysis:
Size:20 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 Channel Timestamp Actions
Quass002 ☄️ (Q002) Primary 0.000s
Reference 		Unknown Unknown 3 MediumSlow 2025-10-07 12:38:38 Current
Venturada2🗼🌐☀️ (Vb2) -2.339s
Before 		-97.0 dBm 0.75 dB 0 MediumSlow 2025-10-07 12:38:35 View
[TLG] 📡🌐🔋🔌 (tlg0) -2.015s
Before 		-111.0 dBm -4.50 dB 0 MediumSlow 2025-10-07 12:38:35 View
Meshtastic 1760 (1760) -1.264s
Before 		-129.0 dBm -10.50 dB 1 MediumSlow 2025-10-07 12:38:36 View
GRN1-Base🗼🌐 (GRN1) -1.234s
Before 		-91.0 dBm 3.50 dB 1 MediumSlow 2025-10-07 12:38:36 View
Quass001 ☄️ (Q001) -0.391s
Before 		-123.0 dBm -16.00 dB 2 MediumSlow 2025-10-07 12:38:37 View
Meshtastic 18a4 (18a4) -0.228s
Before 		-53.0 dBm 13.50 dB 2 MediumSlow 2025-10-07 12:38:37 View
Meshtastic 2688 (2688) -0.089s
Before 		-119.0 dBm -1.00 dB 2 MediumSlow 2025-10-07 12:38:37 View
Ocumare_Base_🗼🌐 (CATA) +0.130s
After 		-120.0 dBm -13.75 dB 2 MediumSlow 2025-10-07 12:38:38 View
Zion 🗼 (Zion) +0.577s
After 		-102.0 dBm -13.50 dB 3 MediumSlow 2025-10-07 12:38:38 View
Oxygen EA4HKU (O) +0.801s
After 		-114.0 dBm -9.00 dB 3 MediumSlow 2025-10-07 12:38:38 View
Carbon EA4HKU (C) +1.077s
After 		-109.0 dBm 0.25 dB 3 MediumSlow 2025-10-07 12:38:39 View
Suop 📡 🌐 (SUOP) +1.164s
After 		-119.0 dBm -13.00 dB 3 MediumSlow 2025-10-07 12:38:39 View
Mec Rocket Meco (MRM) +3.218s
After 		-107.0 dBm -7.25 dB 2 MediumSlow 2025-10-07 12:38:41 View
Rodashtastic🗼🌐 (RDSt) +4.468s
After 		-120.0 dBm -12.50 dB 3 MediumSlow 2025-10-07 12:38:42 View
Hugo 📱🌡️ (HUGO) +2170.801s
After 		-43.0 dBm 13.25 dB 4 MediumSlow 2025-10-07 13:14:48 View
Jolu base (JL1) +2737.442s
After 		-115.0 dBm -7.50 dB 3 MediumSlow 2025-10-07 13:24:15 View
17

Total Receptions

17

Unique Gateways