SOTA | AI6XG Geeksite

Dan Koellen AI6XG

Jun 278 min read

A 40 - 10 meter QMX

The QMX from QRP Labs is modified for operation from 40 to 10 meters. A perfect SOTA rig when matched to a 40 meter EFHW

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Dan Koellen AI6XG

May 99 min read

LCD Display for the KD1JV TriBander

In an earlier post I described the modifications I made to the KD1JV designed TriBander to make it more useful for SOTA. The...

Dan Koellen AI6XG

Jul 18, 202311 min read

Making the KD1JV Tri-Bander More SOTA Friendly

This post outlines the modifications made to reduce receive current consumption, reduce weight and size, and change the controls and readout

Dan Koellen AI6XG

May 2, 20236 min read

QRP Tube: T/R Switch and QCX Interface and Modification

A Modified QCX and TR Switch for Vacuum Tube SOTA transmitter

Dan Koellen AI6XG

May 2, 202315 min read

QRP Tube: Single Tube SOTA Transmitter

A single tube transmitter is developed for portable and Summits on the Air (SOTA) use. The SOTA transmitter had to be relatively...

Dan Koellen AI6XG

May 2, 20235 min read

QRP Tube: Vacuum Tube, Battery, Lightweight, Compact, Portable: Can They Coexist?

Using vacuum tube equipment for SOTA activations? Why not! A portable battery operated vacuum tube transmitter is part of a SOTA system.

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Dan Koellen AI6XG

Jul 30, 20212 min read

Leg Benchmark W7Y/EW-017 Activation - An Alternative Route From the West

Pole Mountain From My Operating Position Summit Trip Summary Distance: ~ 2.6 mi one way Transport: Hiking Elevation Gain: ~500 feet...

Dan Koellen AI6XG

Dec 3, 20202 min read

Scott Peak W6/NS-153 Activation

Operating Position on Scott Peak Summit Trip Summary Distance: ~ 4.2 mi one way Transport: Hiking Elevation Gain: ~1700 feet Time: ~2...