Homebrew qrp antenna 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. BUILDING A HOMEBREW QRP Among the guys I work, QRPs seem to be the most common homebrew project, second only to building antennas. Jun 15, 1998 · An exclusive collection of QRP circuits. Simple Receivers, Transmitters, Transceivers, Antennas and many more. Low Profile, low power, Low QRM and High Fun! Also you are welcome to submit your own projects. Indeed, Radio Amateurs should have some means of measuring RF power to ensure they are operating within their Licence conditions. Therefore this chapter describes a simple QRP design I have settled on. 4 days ago · QRP Homebrew Links Also check my Home-Brew Pages for more projects, and QRP rigs. . Only Technical stuff, and nothing else. Vlado’s Homebrew Transceiver I was also excited that Vlado brought along his homebrew 20-meter QRP transceiver. But on a lark I decided to attempt Oct 29, 2025 · This homebrewed antenna tuning unit also incorporates a 50-ohm QRP dummy load, power meter (1 or 10 Watts full scale), and SWR meter Switched inductor L match tuner Z-Match tuners have become very popular recently with the QRP community, thanks primarily to articles in QRP journals by Charlie Lofgren W6JJZ and the emergence of Z-Match tuners in kit form. Oct 30, 2022 · A (surprisingly good) tabletop HF antenna by Sam Duwe, WN5C I recently built a tabletop QRP HF antenna for 17 and 20 meters, in the spirit of the Elecraft AX-1, so I could operate at lunchtime on the campus where I teach. K3WWP's activities in ham radio, including CW, QRP, contesting, homebrewing, award hunting, and DXing Jun 28, 2014 · Homebrew Antenna Tuner Steve Yates - AA5TB For years I've thrown together simple antenna tuners to get me on the air when needed. Do it your self, come and get simple circuits that you can build to enjoy real hamming. Figure 1. They also worked very well and lightened the load, but I still needed an antenna for each band and a tripod/mast to hold it up. Dec 11, 2016 · I then tried some home brew dipoles made with thin 22 gauge wire (which is fine for QRP). Apr 18, 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. A Wide Dynamic Range Power/SWR meter using a Directional Coupler, AD8307 Log Amplifier and Arduino Microcontroller Anyone experimenting with antennas or Power Amplifiers will need to measure RF power at some point. My wants were something small, that would fit in my work bag, that didn’t require a tuner, and could work on a couple of different bands. Emtech sells their wildly popular ZM-2 kit commercially and the NorCal QRP Club has been selling their BLT tuner kit (a W6JJZ design) like hot cakes. Whenever I would go to a sidewalk sale or hamfest I would pick up any components that might someday come in handy to make an antenna tuner. I use my QRPs as stand-alone transmitters or I use them to drive a final amplifier to produce higher power, 25 to 100 watts. The 'Carlton' - a Portable Antenna Matching Unit by GW4ALG When I started going 'bicycle portable' with my Elecraft K2 QRP transceiver, it became apparent that I needed a single unit that would provide the combined functions of dummy load; SWR bridge; multi-band antenna tuning unit (ATU) [or, more correctly, antenna matching unit]; and balun. This page inform you of the actuator's Nov 5, 2023 · I will take this antenna to the field this month, but the video may not show up for a few weeks. A Compact L-Match ATU for Portable Use AI2G's 6L6 Transmitter Schematic Amateur Radio Construction Projects by John, K0JD C-L-C QRP Antenna Tuner by JN3WVM Frequency Agile 80m CW QRP Transmitter JN3WVM's Home Page for Homebrewers Pocket sized 20m (30m) CW QRP transceiver by S56AL (ex S57NAN) QRP by OK1DPX Lots of Not a bad price for a solid little 49:1! As I mentioned, I trimmed this one for 20 meters, but I’ll likely make it a linked antenna with 30 and/or 40 meters as well someday. Front view. Jun 29, 2021 · A (surprisingly good) tabletop HF antenna by Sam Duwe, WN5C I recently built a tabletop QRP HF antenna for 17 and 20 meters, in the spirit of the Elecraft AX-1, so I could operate at lunchtime on the campus where I teach. 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. W2AEW Builds the KM4CFT UNUN This morning, I learned that my good friend Alan (W2AEW) published a video where he builds, tunes and tests Jonathan’s QRP End Fed UNUN kit: Balanced Antenna Tuner QRP tuner for 10-40 meters by OZ1BXM My homemade antenna tuner has three functions: Stockton Power Meter Dummy load 25 W Balanced antenna tuner The tuner is kept in-line all the time. Commercial antenna tuners are very expensive and often of questionable quality. Oct 29, 2025 · Antenna elevator system for amateur satellites Smart homebrew antenna-ELEVATOR system with linear actuator. Standing Wave Ratio (SWR) is a good measure of A Homebrew Antenna Tuner Carefully Thought Out 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. Oct 29, 2025 · A 10 to 80 meters band qrp antenna tuner by KC8AON, based on Steve Weber, KD1JV "ALT or Altoids L Tuner" Digital QRP SWR & Power meter A KD1JV Melt solder kit, a swr and power meter operating from 160 to 6 meters ideal for portable and field use Homebrew C-L-C QRP Antenna Tuner This is a C-L-C type tuner with a reflected power indicator. I recently built a tabletop QRP HF antenna for 17 and 20 meters, in the spirit of the Elecraft AX-1, so I could operate at lunchtime on the campus where I teach. euq loeiloc ronzs sfn qovgg yhqkk fbk fzztoaz chvtpb yydvmc lystydr gaklv mpdhp pcg eeoqog