The Visual–Aural Radio Range (VAR)History, Technology & Australia’s 30-Year Adoption LFRR → Lorenz → VAR → VOR • 112–118 MHz • Blue & yellow indicator • 1937–1980 • Australian DCA network • ARC Type 16 • Collins airborne equipment • Weston…
Boatanchor Radio Legends Scott V. Johnson W7SVJ / AFA6SJ · Scottsdale, Arizona Engineer, aviator, and the foremost documenter of Collins Radio’s military and avionics product legacy — the man who carries Collins into the cockpit and onto the flightline, and…
Collins Collectors Association Worldwide Regional Groups, Contact Details & Net Schedules Compiled March 2026 · Sources: collinsradio.org · ccae.tm6cca.com · ccaeitaly.com · Mike Peace VK6ADA / r-390a.net Administrator 🇺🇸🇨🇦 Collins Collectors Association (CCA) — North America & Worldwide Parent The…
CCA Friday Night West Coast75 Metre Net Collins Collectors Association • 3895 kHz LSB • Every Friday • 1900 Pacific / 0200Z Saturday • Net Manager: Dennis Kidder W6DQ • Inyokern CA ‣ VK6ADA.COM.AU — CCA Net Guide • March 2026…
vk6ada.com.au • Collins R-390A/URR Technical Series R-390A/URRFailure Prevention Kit — Component & Modification Design A complete engineering analysis of the ten predictable R-390A failure modes, with a structured two-tier component replacement kit and four preventive circuit modifications to eliminate them…
vk6ada.com.au • Collins S-Line Technical Resources Collins Radio Equipment ManualsCCA Technical Archive Directory A complete mirror index of all Collins Radio equipment manual PDFs hosted by the Collins Collectors Association. Links open directly on the CCA server. No login required.…
vk6ada.com.au • Collins S-Line Safety Series Collins 516F-2 & S-LineThe Switched Neutral AC Power Design Defect A comprehensive guide for operators worldwide: why the 516F-2 presents a live mains hazard when switched off, how mains voltage, plug polarity and wiring…
vk6ada.com.au • Collins KWM-2 Technical Series Collins KWM-2 / KWM-2AVietnam Modification (SCED 11b) Complete process plan — PTO voltage stabilisation using a 150 V zener diode. Includes parts list with suppliers, step-by-step installation procedure, Quality Assurance plan, and pre-power test protocol.…
vk6ada.com.au • Collins Radio Heritage Series • Second Edition Prolific Authors ofCollins HF Radio Equipment Eight writers who documented the most revered name in amateur radio — from circuit notes to biography, from service bulletins to space history. All known…
Collins KWM-2 PTO Frequency Jump Troubleshooting Guide By VK6ADA • March 25, 2026 This guide documents the troubleshooting process for an intermittent 9 kHz frequency jump in a Collins KWM-2/2A transceiver that occurs after 1-2 hours of operation. Based on…