MeshCore Observer Node · Zelhem, Gelderland

NL-ZEM-OBSERVER

Netherlands · EU868 · 868 MHz

Role: Observer  ·  RX-only

52.006974° N  /  6.349964° E  ·  Heltec V4.3 + Raspberry Pi 4

Unique Packets
Uptime
Nodes heard
Last packet
Noise floor
TX / RX air time
Firmware
Noise floor · last 60 readings
Connecting…

Real-time

Recent Adverts

Nodes heard by NL-ZEM-OBSERVER over LoRa. Each row is a unique node, updated live as packets arrive.

Live advert feed
0 nodes

Coverage

Nearby Repeaters & Nodes

Observer location is fixed (green). Nodes that advertise GPS coordinates appear automatically as packets arrive.

NL-ZEM-OBSERVER (this node)
Repeater / room server
Other node
No nodes plotted yet — waiting for coordinate data…

Channel

#zelhem

Live messages from the public #zelhem LoRa channel — General Zelhem area traffic. Decrypted server-side, no channel key in the browser.

#zelhem · Gelderland, Netherlands
0 messages
💬 Waiting for #zelhem messages…

System

Architecture

The Heltec listens on LoRa, forwards over USB serial to the Pi, which pushes to DutchMeshCore collectors and LetsMesh. This page subscribes directly to the DutchMeshCore subscriber endpoint.

📡
Mesh
LoRa 868 MHz
RF
🔌
Heltec V4.3
Observer firmware
USB serial
🖥
Raspberry Pi 4
Companion + MQTT
WSS 443
🇳🇱
DutchMeshCore
collector1 + collector2
🌐
LetsMesh
analyzer.letsmesh.net
WSS 443
🌍
This page
subscriber endpoint

Configuration

Node Details

Node name
NL-ZEM-OBSERVER
Role
Observer (RX-only)
Location
Zelhem, Gelderland, NL
Frequency
868 MHz · EU868
Radio
Heltec V4.3 / SX1262
Companion
Raspberry Pi 4
Firmware
Client