Collins 312B-3 Speaker Cabinet Bluetooth Speaker Conversion Dual-Mode DC / Li-Ion Battery Power · Bluetooth 5.0 aptX HD · Dayton Audio KAB-250v4 + LBB-5Sv2 · Ferrite RFI Suppression Mike Peace VK6ADA · r-390a.net Administrator · March 2026 1. Project Overview…
Collins 516F-2 Speaker Cabinet Bluetooth Speaker Conversion Dual-Mode AC / Li-Ion Battery Power · Bluetooth 5.0 aptX HD · Dayton Audio KAB-250v4 + LBB-5Sv2 · Ferrite RFI Suppression Mike Peace VK6ADA · r-390a.net Administrator · March 2026 1. Project Overview…
Collins MP-1 Power SupplyComplete Restoration Kit For the S-Line · KWM-2 · KWM-2A | Includes RFI Mitigation Ferrite Package 47 Components 100% USA Sourcing Ships from Missouri 6Kit Sections 47Components 6US Vendors 4Ferrite Types The Collins MP-1 mobile power supply…
Collins 136B-2 Noise Blanker Engineering Changes & Circuit Modifications Reference Collins 136B-2 Noise Blanker Engineering Changes & Circuit Modification Reference Covering factory-issued changes, community-developed improvements, alignment notes, antenna adaptation, and advanced modifications for contemporary fixed-station use. 1. Background & Design…
Engineering Reference Document Collins 516F-2 Power Supply RFI Analysis & Mitigation Engineering Guide Noise Floor Reduction Strategies for Collins S-Line, KWM-2, and KWM-2A HF Station Installations Prepared by Mike Peace VK6ADA | r-390a.net Administrator | Document Revision 2.0 — February…
Vintage Hammarlund · Restoration Guide Hammarlund SP-600 JX-16 Complete Restoration, Alignment & RFI Mitigation Guide Mike Peace VK6ADA · r-390a.net Administrator Parameter Specification Frequency Coverage 0.54 – 54 MHz in 6 bands Conversion Double conversion (above 7 MHz); single below…
Mission RGO ONE · Technical Guide RGO ONE HF Transceiver RFI Mitigation, Receiver Noise Reduction & Signal-to-Noise Ratio Improvement Guide Mike Peace VK6ADA · r-390a.net Administrator Field Detail Author Mike Peace, VK6ADA Website vk6ada.com.au Resource r-390a.net Transceiver Mission RGO ONE…
Collins 32S-1 Transmitter
Boatanchor Legends — A Tribute Series Matt Parkinson is one of the credited contributors to “The 21st Century R-390A/URR Technical Reference” — the Y2K Manual — the document that transformed the R-390A from an equipment type served by scattered, aging…
HSN Founding Editor & R-390A Historian • Gulfport, Mississippi The Founding Editor Les Locklear of Gulfport, Mississippi is one of the foundational figures of the modern R-390A community. As the original editor of the Hollow State Newsletter, he shepherded the…