{"id":5,"date":"2026-10-28T00:05:27","date_gmt":"2026-10-28T00:05:27","guid":{"rendered":"https:\/\/k0axx.net\/?page_id=5"},"modified":"2026-10-28T01:23:03","modified_gmt":"2026-10-28T01:23:03","slug":"home","status":"publish","type":"page","link":"https:\/\/k0axx.net\/","title":{"rendered":"Home"},"content":{"rendered":"

THE STATION \/ EAST TEXAS<\/p>

Signal first. Fundamentals always.<\/h2>

K0AXX is the amateur station of Will in Southeast Texas, grid EM20VJ. Originally licensed KE5OGY in 2007, I received K0AXX in 2008 and earned Amateur Extra privileges in 2023. I enjoy experimenting across 160 meters through 23 centimeters, from HF DX to weak-signal VHF\/UHF and microwave projects.<\/p>

The operating side<\/h3>

HF DX, Field Day, contesting, rover outings, meteor scatter, Sporadic-E, tropospheric enhancement and EME experiments. There is always another path to test.<\/p>

Explore the station →<\/a><\/p><\/div><\/div><\/div>

The engineering side<\/h3>

Antennas, preamplifiers, feed systems, power dividers, sequencing and measurements. Good communication starts with understanding the entire RF path.<\/p>

Browse RF articles →<\/a><\/p><\/div><\/div><\/div><\/div>

Perfection is achieved not when there is nothing more to add, but when there is nothing left to take away.<\/p><\/blockquote><\/div><\/div>

THE SOFTWARE WORKSHOP \/ WINDOWS + EXPERIMENTAL MOBILE<\/p>

Practical software for radio operators.<\/h2>

Tools for propagation awareness, path planning, packet\/APRS and experimental digital communications. Explore the purpose of each program, operating concept and known limitations. Public installers will only appear after the actual release package and checksum have been verified.<\/p>

KDX \/ Propagation<\/span>In development<\/span><\/div>

K0AXX DX Watch<\/h3>

General and target-grid awareness, activity-source health, space-weather and weather context.<\/p>Read project page →<\/a><\/article>

HF \/ DX Planning<\/span>Development project<\/span><\/div>

DX Path Analyzer<\/h3>

Grid- and place-based path planning, seasonal opportunities, gray-line and solar context.<\/p>Read project page →<\/a><\/article>

Packet \/ APRS<\/span>Experimental<\/span><\/div>

KPS1200<\/h3>

Bell 202 AFSK, APRS fields, radio-audio workflows and practical test notes.<\/p>Read project page →<\/a><\/article>

Field communications<\/span>Experimental<\/span><\/div>

TACREP \/ TACMODE26<\/h3>

VOX-oriented digital reports, short-message workflow and Windows\/Android experiments.<\/p>Read project page →<\/a><\/article>

Messaging<\/span>Experimental<\/span><\/div>

K0AXX Digital Mail<\/h3>

Message folders, transfers, acknowledgments and HF\/VHF operating research.<\/p>Read project page →<\/a><\/article><\/div>\n

Visit the software workshop<\/a><\/div><\/div><\/div><\/div>

BANDS \/ MODES \/ THE PATH<\/p>

What makes the difference?<\/h2>

01 \/ ANTENNA SYSTEMS<\/p>

Build for the band.<\/h3>

Radiation pattern, polarization, height, terrain clearance and feed-line performance matter before increasing transmitter power.<\/p>

Antenna fundamentals →<\/a><\/p><\/div><\/div><\/div>

02 \/ RECEIVING SYSTEMS<\/p>

Protect the noise floor.<\/h3>

Gain is not the same as sensitivity. Evaluate system noise, preamp location, noise figure, front-end protection and transmit\/receive sequencing.<\/p>

Receiving systems →<\/a><\/p><\/div><\/div><\/div>

03 \/ PROPAGATION<\/p>

Recognize the opening.<\/h3>

Paths change with frequency, season, solar conditions and weather. Real activity reports should be distinguished from predicted conditions.<\/p>

Propagation guide →<\/a><\/p><\/div><\/div><\/div><\/div>

Technical library<\/a><\/div><\/div><\/div><\/div>

CURRENT PROJECTS \/ IN THE WORKSHOP<\/p>

Work in progress, not marketing promises.<\/h2>

K0AXX DX Watch<\/h3>

A Windows-focused path and activity monitor with general-coverage and target-grid views, source health reporting, and weather\/space-weather context.<\/p>

Project details →<\/a><\/p><\/div><\/div><\/div>

Rover and weak-signal station<\/h3>

Band-by-band plans and experiments in antenna placement, transverters, relay protection and RF performance for VHF\/UHF and 902\/1296 MHz.<\/p>

Rover notebook →<\/a><\/p><\/div><\/div><\/div><\/div>

Station plans and software features may evolve. Project pages distinguish goals from verified results.<\/p><\/div><\/div>

REMEMBERING AN ELMER<\/p>

Marshall Williams, K5QE (SK)<\/h2>

Marshall introduced me to VHF\/UHF\/SHF contesting. Though he thought of himself as a VHF operator, he also enjoyed the competitive spirit of HF Field Day and the North American QSO Party. His enthusiasm for radio and willingness to share it made a lasting difference. Marshall is truly missed.<\/p>

Read more on the About page →<\/a> or visit the K5QE archive<\/a>.<\/p><\/div><\/div><\/div><\/div>

ON THE AIR \/ CONTESTING \/ PORTABLE<\/p>

From Field Day to microwave grids.<\/h2>

Work with antennas, propagation and people. Explore practical guides for Field Day, HF contests and weak-signal VHF\/UHF\/SHF operations\u2014or revisit Marshall K5QE\u2019s original conference presentations.<\/p>

OPERATING<\/span>

Field Day<\/a><\/h3>

Portable station planning, safe deployment, power budgeting and operating practice.<\/p><\/article>

OPERATING<\/span>

HF Contesting<\/a><\/h3>

Band-by-band propagation, clean station operation, exchanges and log preparation.<\/p><\/article>

OPERATING<\/span>

VHF & Above<\/a><\/h3>

Grid multipliers, rovers and fixed weak-signal operation from 50 to 1296 MHz and beyond.<\/p><\/article>

OPERATING<\/span>

Rover Operations<\/a><\/h3>

Equipment layout, antenna placement, travel safety and grid planning.<\/p><\/article><\/div>\n

Technical legacy: Marshall Williams K5QE \u2014 presentation archive<\/a>.<\/p><\/div><\/div>","protected":false},"excerpt":{"rendered":"

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