Packet #27915013 Success

NODEINFO_APP packet from Ametlla V4 (Amt4) to !ffffffff

10
Total Receptions
10
Unique Gateways
5
Hop Count
75
Payload Bytes
Packet Information
Database ID: 27915013
Mesh Packet ID: 0x79767140
Used for correlation across gateways
Timestamp: 2025-12-15 22:58:18 UTC
From Node: Ametlla V4 (Amt4)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Nodorious BIG (©)
Channel: LongFast
RSSI: -124 dBm
SNR: -15.0 dBm
Hop Info: 5/5 hops
Start: 5, Limit: 0
Relay Node: 1c
Last byte of the last hop that relayed this packet
Payload Data
Protocol: NODEINFO_APP
Size: 75 bytes
Decoded: Yes
Decoded Data:
Long Name:Ametlla V4
Short Name:Amt4
Node ID:!b2a78750
MAC Address:gPGyp4dQ
Hardware:HELTEC_V4
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:75 bytes
Gateway:!433e2884
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:5 / 5
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 !433e2884
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (75 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2997323600
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 75 bytes size
hop_limit Not set uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 5
Calculated: hop_start - hop_limit 		derived
rx_rssi -124.0 dBm
Signal strength at gateway 		int32
rx_snr -15.00 dB
Signal quality at gateway 		float
rx_time 1765839497
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 28
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765839498.8062332
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 (5 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !433e2884
Signal Metrics: RSSI: -124.0 dBm
SNR: -15.00 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:75 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!b2a78750", "long_name": "Ametlla V4", "short_name": "Amt4", "macaddr": "gPGyp4dQ", "hw_model": "HELTEC_V4" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!433e2884", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2997323600, "to": 4294967295, "id": 2037805376, "rx_time": 1765839497, "rx_snr": -15.0, "rx_rssi": -124, "hop_limit": 0, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 28, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216232613738373530120a416d65746c6c612056341a04416d7434220680f1b2a78750286e4220994f57fc1b18adfab04269f435786caa9f79681df174596fc3280acd3247701d4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!b2a78750", "long_name": "Ametlla V4", "short_name": "Amt4", "macaddr": "gPGyp4dQ", "hw_model": "HELTEC_V4", "public_key": "mU9X/BsYrfqwQmn0NXhsqp95aB3xdFlvwygKzTJHcB0=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (75 bytes)
0a09216232613738373530120a416d65746c6c612056341a04416d7434220680f1b2a78750286e4220994f57fc1b18adfab04269f435786caa9f79681df174596fc3280acd3247701d4800
Hex Analysis:
Size:75 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
Nodorious BIG (©) Primary 0.000s
Reference 		-124.0 dBm -15.00 dB 5 1c LongFast 2025-12-15 22:58:18 UTC Current
EA3JAV-SBD-MPL2-CM-8 🏠 (MPL2) -12.059s
Before 		-127.0 dBm -17.75 dB 2 8f LongFast 2025-12-15 22:58:06 UTC View
EB3FWC-Girona📡-GW-868 (EB3F) -8.157s
Before 		-86.0 dBm 3.00 dB 3 - LongFast 2025-12-15 22:58:10 UTC View
CV-Oriol-GW-8 📡 (CVO2) -7.491s
Before 		-106.0 dBm 2.50 dB 3 5c CV05 LongFast 2025-12-15 22:58:11 UTC View
Rubí - FCSv4 (FCS4) -6.985s
Before 		-94.0 dBm -0.25 dB 3 ae Gio LongFast 2025-12-15 22:58:11 UTC View
EA3HGK 🔗 Sant Llorenç d'Hortons (Gio) -6.552s
Before 		-84.0 dBm 6.00 dB 3 ae Gio LongFast 2025-12-15 22:58:12 UTC View
CODY-ConcaDeTremp-GW-868 (CODY) -3.802s
Before 		-126.0 dBm -14.50 dB 4 37 LongFast 2025-12-15 22:58:15 UTC View
CROQUETASTIC-CL-868 (CRQT) -2.932s
Before 		-142.0 dBm -18.50 dB 4 37 LongFast 2025-12-15 22:58:15 UTC View
EA3KZ-02 Terrassa (KZ02) +0.517s
After 		-99.0 dBm -7.25 dB 4 e0 FCS4 LongFast 2025-12-15 22:58:19 UTC View
Angel GW-8 (🏠) +1.621s
After 		-106.0 dBm 3.50 dB 5 ae LongFast 2025-12-15 22:58:20 UTC View
10

Total Receptions

10

Unique Gateways