Packet #12986462 Success

NODEINFO_APP packet from AlcalaHeltekV3 (C3Po) to Meshtastic 9820 (9820)

20
Total Receptions
20
Unique Gateways
4
Hop Count
81
Payload Bytes
Packet Information
Database ID: 12986462
Mesh Packet ID: 0xf31b15b1
Used for correlation across gateways
Timestamp: 2025-09-30 19:49:44 UTC
From Node: AlcalaHeltekV3 (C3Po)
To Node: Meshtastic 9820 (9820)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: [TLG] 📡🌐🔋🔌 (tlg0)
Channel: MediumSlow
RSSI: -111 dBm
SNR: -4.5 dBm
Hop Info: 4/5 hops
Start: 5, Limit: 1
Payload Data
Protocol: NODEINFO_APP
Size: 81 bytes
Decoded: Yes
Decoded Data:
Long Name:AlcalaHeltekV3
Short Name:C3Po
Node ID:!9ea200ec
MAC Address:nBOeogDs
Hardware:HELTEC_V3
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:81 bytes
Gateway:!da638a24
Channel:MediumSlow
Payload Type:NODEINFO_APP
Hop Count:4 / 5
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...
Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (4 hops)
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !da638a24
Node ID format
channel_id MediumSlow
packet MeshPacket (81 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 2666108960
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 81 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 -111.0 dBm
Signal strength at gateway 		int32
rx_snr -4.50 dB
Signal quality at gateway 		float
rx_time 1759261781
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 1759261784.1262972
Unix timestamp 		uint32
MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Direct Message
Privacy Features:
  • ✓ Direct LoRa transmission (not via MQTT)
  • ✓ Targeted to specific node
  • ✓ Custom channel: MediumSlow
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (4 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !da638a24
Signal Metrics: RSSI: -111.0 dBm
SNR: -4.50 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:81 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!9ea200ec", "long_name": "AlcalaHeltekV3", "short_name": "C3Po", "macaddr": "nBOeogDs", "hw_model": "HELTEC_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!da638a24", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2661417196, "to": 2666108960, "id": 4078638513, "rx_time": 1759261781, "rx_snr": -4.5, "rx_rssi": -111, "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": 8, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213965613230306563120e416c63616c6148656c74656b56331a044333506f22069c139ea200ec282b38014220029c664cf37e2bd5d2223dee9f35aea998ca08039ed03b694304ac0cedfcef714800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!9ea200ec", "long_name": "AlcalaHeltekV3", "short_name": "C3Po", "macaddr": "nBOeogDs", "hw_model": "HELTEC_V3", "role": "CLIENT_MUTE", "public_key": "ApxmTPN+K9XSIj3unzWuqZjKCAOe0DtpQwSsDO3873E=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (81 bytes)
0a09213965613230306563120e416c63616c6148656c74656b56331a044333506f22069c139ea200ec282b38014220029c664cf37e2bd5d2223dee9f35aea998ca08039ed03b694304ac0cedfcef714800
Hex Analysis:
Size:81 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
[TLG] 📡🌐🔋🔌 (tlg0) Primary 0.000s
Reference 		-111.0 dBm -4.50 dB 4 MediumSlow 2025-09-30 19:49:44 Current
Will - Azuqueca (WAzq) -1.168s
Before 		-107.0 dBm 1.25 dB 3 MediumSlow 2025-09-30 19:49:42 View
Venturada2🗼🌐☀️ (Vb2) -1.160s
Before 		-97.0 dBm 2.25 dB 3 MediumSlow 2025-09-30 19:49:42 View
Mec Rocket Meco (MRM) -1.157s
Before 		-82.0 dBm 8.50 dB 3 MediumSlow 2025-09-30 19:49:42 View
Glitchs Azuqueca 📡 (GltA) -0.786s
Before 		-119.0 dBm -10.50 dB 3 MediumSlow 2025-09-30 19:49:43 View
Perseo 📡🌐☀ (nvm1) -0.152s
Before 		-94.0 dBm -1.50 dB 3 MediumSlow 2025-09-30 19:49:43 View
Machu Pichu (MaPi) -0.061s
Before 		-96.0 dBm -0.75 dB 4 MediumSlow 2025-09-30 19:49:44 View
Rodashtastic🗼🌐 (RDSt) -0.026s
Before 		-115.0 dBm -6.25 dB 4 MediumSlow 2025-09-30 19:49:44 View
Naranjo C191 🌐 (FNL) +0.003s
After 		-114.0 dBm -6.25 dB 4 MediumSlow 2025-09-30 19:49:44 View
myounges (msy) +0.310s
After 		-128.0 dBm -6.50 dB 3 MediumSlow 2025-09-30 19:49:44 View
Meshtastic 1760 (1760) +0.575s
After 		-122.0 dBm -4.25 dB 4 MediumSlow 2025-09-30 19:49:44 View
TO_Cala_Base2🗼🌐☀️ (33C8) +1.037s
After 		-108.0 dBm -1.25 dB 5 MediumSlow 2025-09-30 19:49:45 View
Meshtastic 18a4 (18a4) +1.472s
After 		Unknown Unknown 5 MediumSlow 2025-09-30 19:49:45 View
Malasaña Solar ☀️ (🌇) +1.840s
After 		-117.0 dBm -10.50 dB 5 MediumSlow 2025-09-30 19:49:45 View
Zion 🗼 (Zion) +1.850s
After 		-107.0 dBm -15.00 dB 5 MediumSlow 2025-09-30 19:49:45 View
Suop 📡 🌐 (SUOP) +1.896s
After 		-111.0 dBm -2.00 dB 5 MediumSlow 2025-09-30 19:49:46 View
Kenobi23 QTH (5aec) +1.989s
After 		-99.0 dBm Unknown 5 MediumSlow 2025-09-30 19:49:46 View
Monolito (MoN) +2.351s
After 		-58.0 dBm 8.75 dB 5 MediumSlow 2025-09-30 19:49:46 View
Meshtastic 2688 (2688) +4.396s
After 		-130.0 dBm -12.75 dB 5 MediumSlow 2025-09-30 19:49:48 View
🌐Charly Unid Movil🛰 (C181) +5.903s
After 		-28.0 dBm 9.25 dB 5 MediumSlow 2025-09-30 19:49:50 View
20

Total Receptions

20

Unique Gateways