Sota Antennas #3: EFRW spool antenna
Discover the pros and cons of the EFRW spool antenna. Includes 3D design files, tips on using 24 AWG litz wire, and a guide to finding the best "random" wire lengths for 40m-10m bands.
Kategorie DIY
Ham radio operators were Makers before that term was coined. This category contains describes various DIY (Do-It-Yourself) projects useful for ham radio.
Sota Antennas #2: Kanga QRP Endfed Halfwave ATU for 15 m
A micro build report on the Kanga QRP Endfed Halfwave ATU which I used for building a 15 m EFHW for SOTA activations.
Micro Build Report: Kanga Rooster 40 m CW Transceiver
The Kanga Products Rooster 40 m CW transceiver is a neat little rock-bound CW QRP transceiver. Pictures from assembly by OE5LXR.
Micro Build Report: QRPMe Tuna Topper
The QRPme Sudden Storm is a RF amplifier kit (up to 5W for 40 m band) made by OM Rex Harper, W1REX. Pictures from assembly by OE5LXR.
Micro Build Report: QRPMe Sudden Storm
The QRPme Sudden Storm is a rock-bound CW receiver kit for the 40 m band made by OM Rex Harper, W1REX. Pictures from assembly by OE5LXR.
Micro Build Report: QRPMe Tuna Helper
The QRPme Two Tinned Tunas is a RF sensing sensing automatic transmit/receive switch kit made by OM Rex Harper, W1REX. Pictures from assembly by OE5LXR.
A cheap DIY dummy load using wire wound power resistors
This article describes how I assembled a cheap dummy load using a pair of 100 Ω / 50 W wire wound resistors and why that wasn't the best idea.
Micro Build Report: QRPMe Two Tinned Tunas (EZ Build)
The QRPme Two Tinned Tunas is a rock-bound CW (morse) transmitter building kit made by OM Rex Harper, W1REX. Pictures from assembly by OE5LXR.
Micro Build Report: QRPMe Tuna Tunah
The QRPme Tuna Tunah is a switched inductor antenna tuner building kit made by OM Rex Harper, W1REX. Pictures from assembly by OE5LXR.
Sota Antennas #1: Multi-Band Inverted-Vee Trapped Dipole
Article about my primary SOTA antenna which is a multi-band (20/30/40) inverted-vee trapped dipole with over 100 successful activations.