Packet #28269811 Success

TEXT_MESSAGE_APP packet from NarKT3S3📡 (NKT3) to !ffffffff

9
Total Receptions
9
Unique Gateways
4
Hop Count
24
Payload Bytes
Packet Information
Database ID: 28269811
Mesh Packet ID: 0x142825bc
Used for correlation across gateways
Timestamp: 2025-12-17 13:06:04 UTC
From Node: NarKT3S3📡 (NKT3)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: TEXT_MESSAGE_APP
Port: 1
Gateway: Mula_LaTorre_Int (MUL2)
Channel: MediumFast
RSSI: -47 dBm
SNR: 10.5 dBm
Hop Info: 4/7 hops
Start: 7, Limit: 3
Relay Node: 9c MULA
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions
Payload Data
Protocol: TEXT_MESSAGE_APP
Size: 24 bytes
Decoded: Yes
Text Content:
greetings from Cartagena
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:24 bytes
Gateway:!db51d5ac
Channel:MediumFast
Payload Type:TEXT_MESSAGE_APP
Hop Count:4 / 7
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
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !db51d5ac
Node ID format
channel_id MediumFast
packet MeshPacket (24 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3663393044
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 1
TEXT_MESSAGE_APP 		enum
decoded.payload_length 24 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 4
Calculated: hop_start - hop_limit 		derived
rx_rssi -47.0 dBm
Signal strength at gateway 		int32
rx_snr 10.50 dB
Signal quality at gateway 		float
rx_time 1765976763
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 156
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765976764.8059037
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
  • ⚠ Multi-hop path visible (4 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !db51d5ac
Signal Metrics: RSSI: -47.0 dBm
SNR: 10.50 dB
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!db51d5ac", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3663393044, "to": 4294967295, "id": 338175420, "rx_time": 1765976763, "rx_snr": 10.5, "rx_rssi": -47, "hop_limit": 3, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 156, "tx_after": 0, "decoded": { "portnum": 1, "payload": "6772656574696e67732066726f6d20436172746167656e61", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "text": "greetings from Cartagena", "type": "text_message", "portnum": "TEXT_MESSAGE_APP" } } } }
Raw Packet Data (24 bytes)
6772656574696e67732066726f6d20436172746167656e61
Hex Analysis:
Size:24 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
Mula_LaTorre_Int (MUL2) Primary 0.000s
Reference 		-47.0 dBm 10.50 dB 4 9c MULA MediumFast 2025-12-17 13:06:04 UTC Current
NarKT3S3📡 (NKT3) -4.349s
Before 		Unknown Unknown 0 14 NKT3 MediumFast 2025-12-17 13:06:00 UTC View
🇪🇸VARON DANDY📟⚡🌍🌐🕺 (NOD1) -0.108s
Before 		-137.0 dBm -12.25 dB 3 - MediumFast 2025-12-17 13:06:04 UTC View
EAL Station 1 🗼🌐 (EAL1) +0.821s
After 		-112.0 dBm -5.25 dB 5 a4 📍 , NOD4 MediumFast 2025-12-17 13:06:05 UTC View
San_Pablo🗼 (SP00) +1.447s
After 		-107.0 dBm 0.50 dB 6 f9 EAL3 MediumFast 2025-12-17 13:06:06 UTC View
Albacete_01 🛜 (Ab01) +2.138s
After 		-101.0 dBm -1.00 dB 7 d8 HIR0 MediumFast 2025-12-17 13:06:06 UTC View
ROQUETAS 2 - EA7HMB ☀️🗼 (RQT2) +2.508s
After 		-91.0 dBm 2.25 dB 5 0f AL11 MediumFast 2025-12-17 13:06:07 UTC View
EA5WA TRASTERO (WA01) +3.150s
After 		-94.0 dBm 2.50 dB 7 d8 HIR0 MediumFast 2025-12-17 13:06:07 UTC View
el_chito (chit) +10135.367s
After 		-121.0 dBm -13.50 dB 3 5e MediumFast 2025-12-17 15:55:00 UTC View
9

Total Receptions

9

Unique Gateways