European SOTA Activity Day 2021

The European SOTA Activity Day 2021 takes place on 18th September 2021. Its focus is on EU wide portable ham radio operation from a mountain.

How to interface your Yaesu FT-817ND/FT-818 radio with a Hardrock-50 HF amplifier

A Yaesu FT-817ND hardrock interface allows automatic band switching of the Hardrock-50 HF amplifier via FT-817ND and FT-818.

How to receive and decode WSPR with a simple RTL-SDR

Weak Signal Propagation Reporter is a digital radio protocol for probing potential propagation paths. Learn how to receive WSPR with RTL-SDR.

Yaesu FT-817ND Transmitter Output Power Levels

The Yaesu FT-817ND has four transmitter output power levels: 5 W, 2.5 W, 1 W and 0.5 W. See the different visual indicators for each level.

How to automate your QSL card workflow

Learn how to automate your QSL card workflow by exporting QSO data directly from your logging program and print to beautiful adhesive labels.

My SOTA Journey - From Novice to Veteran

Every journey begins with a single step. Every mountain goat starts with one single summit. This is my SOTA journey from novice to veteran.

Yaesu FT-817ND/FT-818 PowerPole Adapter

The YAESU FT-817ND PowerPole Adapter protects against dangerous mechanical stress exerted on the DC input connector when operating portable.

How to assemble the WiMo X-Quad Antenna for 2m

Learn how to perform a WiMo X-Quad Antenna 2m assembly and use this fantastic anteanna for receiving signals from the ISS during SSTV events.

How to decode SSTV images with MMSSTV

In this article you'll learn how to decode SSTV with MMSSTV. Interesting for decoding SSTV images received from ISS during ARISS SSTV events.

How to build a diode voltage reduction adapter for your LiPo

Learn how to build a diode voltage reduction adapter for reducing battery voltage of your LiPo battery pack to a safe level for your radio.

European SOTA Activity Day 2020

During the European SOTA Activity Day 2020 on 19/9/2020 enthusiastic hams ascended and operated portable on SOTA summits all across EU.

The ultimate guide to your Yaesu FT-817ND radio

The ultimate guide to your Yaesu FT-817ND contains all the knowledge necessary to get the most out of this robust and versatile little radio.

My portable ham radio setup for VHF and HF

In this article I’ll be describing my portable ham radio setup for both VHF and HF in order to give beginners a reference setup to build upon.

How to install the YF-122S Yaesu FT-817ND ssb filter

Learn how to fit the YF-122S ssb filter into the Yaesu FT-817ND in order to improve the suppression of strong signals on adjacent channels.

CQ, CQ, this is OE5LXR ...

Hi! My name is Alexander Entinger (ham radio callsign OE5LXR) and welcome to my personal blog about portable ham radio and SOTA.

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