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10 cze 2018 · This antenna tuning kit comes with standing wave directions. Using a T-type topology network, shortwave 1-30 MHz. Can support 15W transmission power. The adjustment range of about 30-300 ohms. Very convenient for QRP communication, to ensure the radio transceiver high efficiency in communication, but also let you fully enjoy the fun of DIY.
21 maj 2021 · QRP Manual DIY Antenna Tuner Kit 1 -30Mhz. This little QRP (low power) Antenna tuner has been around for a while and it is sold as a Kit from Aliexpress, Amazon, Ebay, Banggood to name a few. The price ranges from $8.00 through to $60 (discounted for the same group of components.
18 kwi 2020 · Antenna tuners (more accurately referred to as “transmatches”) make great homebrew projects; they are reasonably simple to build and, when finished, provide a useful piece of equipment. Every shack should have (at least) one.
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.
Introduction. To start with, this kit is available from several suppliers, particularly generally Chinese suppliers under the umbrellas of Aliexpress, Amazon, Ebay and Banggood etc. Whilst it has been around for quite a few years, it is still a popular kit.
The ZM-2 ATU is a simple manual antenna tuner that you can purchase either as a fun-to-build kit or fully assembled and tested. I’ve owned my ZM-2 for many years, and I believe every QRP field operator should have one.
13 mar 2018 · This tuner kit is based on the classic, proven, Tee Tuner wide range matching unit design. For the new Ham Operator it would be better to buy a larger, more well developed kit. An experienced kit builder will have little problem assembling this kit using home shop tools.
