Packet #28341232 Success

TEXT_MESSAGE_APP packet from Rubí - FCSv4 (FCS4) to !ffffffff

10
Total Receptions
10
Unique Gateways
1
Hop Count
7
Payload Bytes
Packet Information
Database ID: 28341232
Mesh Packet ID: 0x67d47fb5
Used for correlation across gateways
Timestamp: 2025-12-17 21:02:06 UTC
From Node: Rubí - FCSv4 (FCS4)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: TEXT_MESSAGE_APP
Port: 1
Gateway: EA3HGK 🔗 Sant Llorenç d'Hortons (Gio)
Channel: LongFast
RSSI: -83 dBm
SNR: 6.5 dBm
Hop Info: 1/6 hops
Start: 6, Limit: 5
Relay Node: ae Gio
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: 7 bytes
Decoded: Yes
Text Content:
2️⃣
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:7 bytes
Gateway:!9ea20e60
Channel:LongFast
Payload Type:TEXT_MESSAGE_APP
Hop Count:1 / 6
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !9ea20e60
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (7 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2996808928
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 1
TEXT_MESSAGE_APP 		enum
decoded.payload_length 7 bytes size
hop_limit 5
Remaining hops allowed 		uint32
hop_start 6
Initial hop limit 		uint32
hops_taken 1
Calculated: hop_start - hop_limit 		derived
rx_rssi -83.0 dBm
Signal strength at gateway 		int32
rx_snr 6.50 dB
Signal quality at gateway 		float
rx_time 1766005324
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 174
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1766005326.2398775
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)
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (1 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !9ea20e60
Signal Metrics: RSSI: -83.0 dBm
SNR: 6.50 dB
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!9ea20e60", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2996808928, "to": 4294967295, "id": 1741979573, "rx_time": 1766005324, "rx_snr": 6.5, "rx_rssi": -83, "hop_limit": 5, "hop_start": 6, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 174, "tx_after": 0, "decoded": { "portnum": 1, "payload": "32efb88fe283a3", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "text": "2️⃣", "type": "text_message", "portnum": "TEXT_MESSAGE_APP" } } } }
Raw Packet Data (7 bytes)
32efb88fe283a3
Hex Analysis:
Size:7 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
EA3HGK 🔗 Sant Llorenç d'Hortons (Gio) Primary 0.000s
Reference 		-83.0 dBm 6.50 dB 1 ae Gio LongFast 2025-12-17 21:02:06 UTC Current
Rubí - FCSv4 (FCS4) -8.812s
Before 		Unknown Unknown 0 e0 FCS4 LongFast 2025-12-17 21:01:57 UTC View
EA3KZ-02 Terrassa (KZ02) -5.670s
Before 		-103.0 dBm -13.00 dB 0 e0 FCS4 LongFast 2025-12-17 21:02:00 UTC View
EAMG_rubí 🏠 (EAMG) -5.658s
Before 		-87.0 dBm 4.50 dB 0 e0 FCS4 LongFast 2025-12-17 21:02:00 UTC View
StBoiCLM-8jj (SBJ1) +5.343s
After 		-120.0 dBm -13.50 dB 1 10 LongFast 2025-12-17 21:02:11 UTC View
EB3FWC-Girona📡-GW-868 (EB3F) +9.931s
After 		-87.0 dBm Unknown 3 - LongFast 2025-12-17 21:02:16 UTC View
Makinazo-2📶📡🌐 (MAK2) +9.946s
After 		-103.0 dBm 1.00 dB 3 ee SB_N LongFast 2025-12-17 21:02:16 UTC View
CV-Oriol-GW-8 📡 (CVO2) +9.952s
After 		-107.0 dBm 1.75 dB 3 5c CV05 LongFast 2025-12-17 21:02:16 UTC View
MontcadaCentro-CL-868🗼🌐 (d9e8) +10.076s
After 		-90.0 dBm 4.00 dB 3 77 LongFast 2025-12-17 21:02:16 UTC View
CODY-ConcaDeTremp-GW-868 (CODY) +10.816s
After 		-128.0 dBm -18.25 dB 4 37 LongFast 2025-12-17 21:02:17 UTC View
10

Total Receptions

10

Unique Gateways