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I decided to build a homebrew antenna tuner because I needed a passive pre-selector network to match an experimental end-fed wire antenna to my QS1R SDR receiver. Please Note: In the last version of my modified FRI-Match (diagram above), I replaced the 470 pf variable capacitors with 500 pf.
29 cze 2021 · On Monday, June 14, 2021, I made a simple goal: buy my antenna wire en route to Lake James State Park, build the antenna on site, and complete a valid Parks On The Air (POTA) activation.
19 mar 2023 · I know there is eleventy thousand Prefabricated Dual Band VHF/UHF Antennas out there, but if you want to make your own with 100% tunable capability for both bands on the cheap then this post is for you.
Smart homebrew antenna-ELEVATOR system with linear actuator. The actuator is a cheap and heavy tool with high enough torque, ideal for elevation systems, but in practice it needs quite an effort in order to operate correctly in your homebrew antenna system.
1 lis 2020 · A Simple Antenna Tuner for SWL Radios. by Steve Allen, KZ4TN. After reading 13DKA’s excellent review of the Belka-DSP on SWLing.com a few weeks ago I knew I had to have one! The size, features, and performance of the Belka-DX (latest version of the Belka-DSP) is phenomenal.
Build your own 2M antenna – Ham Radio Designs. 2M Aluminum Slim Jim Antenna. My main shack location has a commercial 2M J-Pole Dual band mounted on a short mast. My workshop under the garage needed to have a separate antenna, preferably hung from a nearby tree. Since I like making things, a homebrew antenna was in order.
16 kwi 2019 · Indoor antennas are always compromises, with higher noise pick-up on receive and weaker signals on transmit. But you could try a magnetic loop . A diameter between about 90 and 150 cm will allow operation on many popular HF bands.
