Packet #12637519 Success

TEXT_MESSAGE_APP packet from AlcalaHeltekV3 (C3Po) to !ffffffff

20
Total Receptions
20
Unique Gateways
3
Hop Count
4
Payload Bytes
Packet Information
Database ID: 12637519
Mesh Packet ID: 0xff3f5c0a
Used for correlation across gateways
Timestamp: 2025-09-28 18:04:10 UTC
From Node: AlcalaHeltekV3 (C3Po)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: TEXT_MESSAGE_APP
Port: 1
Gateway: Fuenca fijo (c578)
Channel: MediumSlow
RSSI: -123 dBm
SNR: -11.0 dBm
Hop Info: 3/5 hops
Start: 5, Limit: 2
Payload Data
Protocol: TEXT_MESSAGE_APP
Size: 4 bytes
Decoded: Yes
Text Content:
Test
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:4 bytes
Gateway:!a0cbc578
Channel:MediumSlow
Payload Type:TEXT_MESSAGE_APP
Hop Count:3 / 5
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumSlow
+ 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 !a0cbc578
Node ID format
channel_id MediumSlow
packet MeshPacket (4 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2661417196
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 1
TEXT_MESSAGE_APP 		enum
decoded.payload_length 4 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 3
Calculated: hop_start - hop_limit 		derived
rx_rssi -123.0 dBm
Signal strength at gateway 		int32
rx_snr -11.00 dB
Signal quality at gateway 		float
rx_time 1759082650
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 8
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1759082650.8616092
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
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: !a0cbc578
Signal Metrics: RSSI: -123.0 dBm
SNR: -11.00 dB
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!a0cbc578", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2661417196, "to": 4294967295, "id": 4282342410, "rx_time": 1759082650, "rx_snr": -11.0, "rx_rssi": -123, "hop_limit": 2, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 8, "tx_after": 0, "decoded": { "portnum": 1, "payload": "54657374", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "text": "Test", "type": "text_message", "portnum": "TEXT_MESSAGE_APP" } } } }
Raw Packet Data (4 bytes)
54657374
Hex Analysis:
Size:4 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
Fuenca fijo (c578) Primary 0.000s
Reference 		-123.0 dBm -11.00 dB 3 MediumSlow 2025-09-28 18:04:10 Current
Venturada2🗼🌐☀️ (Vb2) -1.382s
Before 		-104.0 dBm -5.75 dB 1 MediumSlow 2025-09-28 18:04:09 View
Will - Azuqueca (WAzq) -0.417s
Before 		-111.0 dBm -4.25 dB 3 MediumSlow 2025-09-28 18:04:10 View
Mec Rocket Meco (MRM) -0.366s
Before 		-35.0 dBm 9.00 dB 2 MediumSlow 2025-09-28 18:04:10 View
Malasaña Solar ☀️ (🌇) +0.002s
After 		-120.0 dBm -12.25 dB 3 MediumSlow 2025-09-28 18:04:10 View
Machu Pichu (MaPi) +0.004s
After 		-102.0 dBm -4.25 dB 3 MediumSlow 2025-09-28 18:04:10 View
📟Lulo_N2📟 (L_N2) +0.006s
After 		-134.0 dBm -11.75 dB 3 MediumSlow 2025-09-28 18:04:10 View
Meshtastic 1760 (1760) +0.007s
After 		-127.0 dBm -8.75 dB 3 MediumSlow 2025-09-28 18:04:10 View
Villalbilla02 (VBV2) +0.013s
After 		-111.0 dBm -5.50 dB 2 MediumSlow 2025-09-28 18:04:10 View
Rodashtastic🗼🌐 (RDSt) +0.015s
After 		-119.0 dBm -10.50 dB 3 MediumSlow 2025-09-28 18:04:10 View
Naranjo C191 🌐 (FNL) +0.017s
After 		-118.0 dBm -12.75 dB 3 MediumSlow 2025-09-28 18:04:10 View
Kenobi23 QTH (5aec) +0.087s
After 		-112.0 dBm -11.75 dB 3 MediumSlow 2025-09-28 18:04:10 View
Monolito (MoN) +0.190s
After 		-65.0 dBm 9.25 dB 3 MediumSlow 2025-09-28 18:04:11 View
Meshtastic 18a4 (18a4) +0.394s
After 		Unknown Unknown 4 MediumSlow 2025-09-28 18:04:11 View
TO_Cala_Base2🗼🌐☀️ (33C8) +0.406s
After 		-108.0 dBm -1.25 dB 4 MediumSlow 2025-09-28 18:04:11 View
Meshtastic c498📡🌐 (C498) +1.668s
After 		-117.0 dBm -16.00 dB 5 MediumSlow 2025-09-28 18:04:12 View
[TLG] 📡🌐🔋🔌 (tlg0) +1.763s
After 		-117.0 dBm -16.00 dB 2 MediumSlow 2025-09-28 18:04:12 View
🌐Charly Unid Movil🛰 (C181) +3.975s
After 		-24.0 dBm 8.25 dB 5 MediumSlow 2025-09-28 18:04:14 View
SkG@Home 📡🌐 (SkGH) +5.963s
After 		-112.0 dBm -2.75 dB 4 MediumSlow 2025-09-28 18:04:16 View
G71NCH3-NB-MAD-02 (G71B) +912.767s
After 		-116.0 dBm -17.25 dB 2 MediumSlow 2025-09-28 18:19:23 View
20

Total Receptions

20

Unique Gateways