Build Guide

Outdoor Relay Node

A weatherproof porch, fence, or balcony relay with a real antenna and cleaner line of sight

Intermediate Difficulty
1-2 hr Time
$60-90 Cost
Drill, screwdriver Tools
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This build moves from “I have a node” to “I am actually improving local coverage.” The main gains come from getting the antenna outside, vertical, and above the indoor clutter that kills range.

Hardware Selector

Heltec WiFi LoRa 32 V3

Good if you want a lower-cost relay and local WiFi options later.

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RAK WisBlock

Use this if low power and cleaner long-term infrastructure behavior matter more than a low initial cost.

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6x4 IP67 junction box

Fits a simple relay build and keeps the footprint modest.

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8x6 enclosure

Worth it if you want strain relief, future battery support, or more generous service loops.

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5.8dBi fiberglass antenna

The standard outdoor answer for real coverage improvement.

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SMA extension and gland

Use a short extension to move the antenna outside the box without forcing the board into a bad position.

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Zip ties

Fastest option for temporary or semi-permanent railing installs.

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Bracket and screws

Use for a cleaner long-term mount on fence posts or wall surfaces.

Build Sequence

  1. Flash and configure the board indoors before it ever touches the enclosure.
  2. Mark cable gland positions with the board and cables physically laid out on the table.
  3. Drill slowly, deburr the openings, and dry-fit the glands before installing electronics.
  4. Mount the board so the USB port and antenna feed are not under stress.
  5. Route the antenna path first, then power, then secure the extra slack.
  6. Seal, mount, and do a final connectivity check from the actual install location.

What To Get Right

Height beats gadget upgrades

Even a basic board performs well when the antenna is higher and has cleaner sight lines.

Service loops matter

Do not pull cables drum-tight. Leave enough slack so vibration and weather do not work the connectors loose.

Keep the antenna vertical

Bad antenna orientation wastes the whole upgrade.

Do not bury the radio in a metal box unless you have already planned the antenna feed-through, BLE expectations, and maintenance path. Outdoor success depends on the whole RF system, not just waterproof plastic.

Commissioning Checklist

  • Role set intentionally, usually ROUTER or CLIENT_BASE
  • Long name clearly identifies the install location
  • Antenna vertical and above nearby rail height if possible
  • USB cable drip loop present before entering the box
  • Enclosure seals checked after first rain or hose test
  • Phone or laptop can still reach the node for management