Quick Disconnects on Ham Antenna: Does It Ruin Your Tune? Full NanoVNA Test скачать в хорошем качестве

Quick Disconnects on Ham Antenna: Does It Ruin Your Tune? Full NanoVNA Test

Ever wondered if quick disconnects mess up your antenna's SWR and resonance? In this full ham radio build/update video, I install spring-loaded quick disconnects on my custom 20m antenna (made from two old CB antennas) and run precise NanoVNA tests to find out. Baseline: 1.043 SWR at 14.273 MHz With disconnect: Slight shift to 14.180 MHz resonant, SWR 1.12 Solution: Easy whip trim/adjustment for centered voice band (14.225-14.350 MHz target) → Final: 1.07-1.6 SWR across band, no tuner needed! Perfect for mobile operators who swap bands often. See the exact steps, tools (Allen wrenches, vice grips), and why the spring connection stays tight. Timestamps: 0:00 - Intro & Previous Build Recap 1:55 - Baseline NanoVNA Test (No Disconnect) 4:08 - Installing Quick Disconnects 6:55 - After Measurements & Frequency Shift 10:08 - Retuning the Whip Length 15:12 - Final SWR Results & Band Coverage Great for mobile hams wanting fast band swaps with ham stick antennas. If you're into amateur radio antennas, DIY ham projects, or NanoVNA usage, this step-by-step guide will help! 👍 Thumbs up if this helps your setup! Share with fellow hams. 👍 Support the channel: Buy me a coffee → https://buymeacoffee.com/budgethamradio (or scan QR in video) #HamRadio #AntennaTutorial #NanoVNA #20MeterAntenna #QuickDisconnect 👉 For more videos similar to this, click here -    / @budgethamradio   If you've got questions drop a comment below! Thumbs up if this was entertaining or helpful, and subscribe for more practical ham radio tips. 👉 Check out my playlist on Building Antennas:    • Homebrew Antennas and equipment   Amazon links: I may get a small commission if you buy (at no extra cost to you). Thanks for supporting @BudgetHamRadio! Link to Amazon for items used in this video and others - https://www.amazon.com/shop/budgetham... Thanks for watching – 73 from Jerry KM4ZKB! #SWR #HamTutorial #AmateurRadio #MobileHam