Qrp kit building. It has a 50-ohm input and output impedance. I also show the build process and how it tunes up. On this site I hope to pass along kits, projects, and ideas to the QRP community. paypal. Kit building appears to be on the rise again. On the beginners […] In short, you get a lot of value for your hard earned money by building your own equipment from professionally designed and engineered amateur radio kits. The Hilltopper is a high performance CW transceiver for the 20M meter band. Assembles in 1-2 hours. com Kits QMX+ 160-6m multi-mode transceiver QMX multi-band transceiver kit QCX-mini 5W CW transceiver kit QCX+ 5W CW transceiver kit QDX Digital Transceiver QDX-M 5W Digital Transceiver Ultimate3/3S QRSS/WSPR kit U4B - Balloon tracker 50W Amp for QCX Ultimate relay-switched LPF kit GPS receiver kit QLG2 GPS receiver kit QLG3 10W HF Linear PA Low Pass Filter Band Pass Filter Si5351A QRP operation is a fascinating and rewarding mode of operation that allows hams to communicate with other hams using very little power. Everything you need to build the kit is provided. The SWR meter and protection really sets the QMX apart from earlier QRP Labs radios. Its low price won’t strain even a modest budget. No separate feeder is needed. I spent maybe 3 hours total to construct and adjust it. 030 Mhz with Transparent Acrylic Shell Fully Assembled This Pixie, assembled and ready to transmit, boasts a unique feature—it will be sent with a 7. Many thanks to SWLing Post contributor, Frank (ON6UU), who shares the following guest post: Building EA3GCY’s DB4020 QRP Transceiver kit by Frank Lagaet (ON6UU) In May, I discovered via a newslette… QRP Kits and Components - worldwide suppliers of ham radio kits The "PIXIE" micro-power telegraph transceiver is a compact, efficient choice for 40-meter band communication. When properly configured, our low pass filter is capable of significantly reducing harmonics with minimal effect on the desired signal. 5 x 0. - Revision 1: CLICK HERE to download the kit-building instructions for PCB revision 1 (nothing written on PCB) To order: PLEASE VISIT QRP LABS SHOP! The Pixie 2 is a small, versatile radio transceiver that is very popular with QRP (low power) amateur radio operators the world over. This a board plus bag-of-parts that is easily assembled by following the detailed manual. The kit includes a commercial quality plated through, silkscreened, solder masked board, and all board mounted parts, plus the polyvaricon tuning capacitor, digital dial, custom powder coated and punched case, knobs and controls. Building a QRP radio from scratch can be a fun and educational DIY journey that can help you learn more about radio electronics, enhance your skills, and provide a unique operating experience. This is the “operate” position that is used after the antenna has been tuned for best SWR. Mates with our Easy Transmitter and Easy Audio Filter to make a QRP station. It is made up of recommendations from me that are my opinion. Because the EFRW is not resonant on any particular amateur band, the impedance is such that they are tunable to virtually all bands for which the radiating wire is at least about ⅜ wavelength long. We provide quality, affordable kits along with support through the build process and beyond. Most of my recommendations are based on my personal experience, but I also take into account what others have told me. WA3RNC TR-35 4-Band 5-Watt CW Transceiver Kit Size 5 ½ X 3 ¼ X 1 ½ less protrusions, weight 10. I encourage you to check out the BitX20 users group on Yahoo. DIY Popular Amateur Radio Transceivers Kits, Shack Essential Equipments, Antenna Tuners, SSB QRP Transceivers, Radio RF Components etc. 7mm). See http://qrp-labs. This aspect of amateur radio is facilitated by several reputable ham-owned companies and clubs that sell well-designed, relatively inexpensive kits. Apr 1, 2025 · Building QRP radios from scratch is a fascinating and rewarding DIY journey that can help you learn more about radio electronics and enhance your skills in a fun and exciting way. It is the perfect solution to your portable operation needs - small, lightweight, wide 20 meter frequency coverage and low current drain, extending the life of your portable power source. The most critical and hard to assemble parts are pre-assembled and tested. · Mates with Easy Transmitter and Easy Audio Filter to make a QRP station. With so many people talking about it on the club’s repeater lately I decided to put together a good list of sources for kits that are currently available. A QRP transceiver built from a kit can cost less than $200. CRK-10A Documentations Choc perfboard Build a SSB transceiver with Choc Perf Board HT-1A User manual, kit building instructions and schematics in zipped format PJ-80 manual, supplement manual by CRKITS and part list (with manual errata) in English Gipsy Portable Dipole Antenna manual in English 2P3 AM radio kit manual translation This QRP Portable No Tune End Fed Half Wave Antenna is a versatile, single-band 80m-10m wire antenna, designed for easy setup in various configurations like inverted-V, horizontal, or vertical radiators. I built this for a friend and really took my time to enjoy the experience. Low power consumption is another major plus. We will be talking about all the above stuff then ending with soldering practice building a couple of elementary pieces of QRP test equipment useful after your successful completion of the 40th Anniversary Tuna Tin 2 kit. com/donate/?busine The criteria for our kit designs, are items that are unique in some way, combine features not normally seen, low in cost, and provide satisfaction in completion. Objectives: WHY QRP, TT2 circuit operation, parts identification & sorting, soldering techniques and practice. I don’t know where else you could find such a complete radio package (with built-in tuner and paddles) for that price. Building miniature transmitters and receivers is a ham tradition that continues to grow in popularity. This kit is perfect for a beginner and fun for the more experienced. Nowadays, ham radio kits are easier to build and more reliable than ever. There is no difference in cost to you. With the insights provided above, you can get started on your kit-building journey and explore the world of QRP radios. I get around a lot of QRPers, and I listen to what they have to say. Home LARCSet Kit – The 40 meter all analog SSB/CW radio ($39) The LARCSet is an all analog SSB/CW radio kit that you can assemble in one day! Based on the BITX40, this is the cute little station for the beginners, homebrewers and the QRP operators. This is an impressive radio for at least 3 reasons: The kit costs a whopping total of $240 US. Many of these are for QRP operation, but a few are full-featured professional transceivers (Elecraft, DZ). It’s remarkably easy to do, ask me how I know! The Build The "QMX" (Q RP Labs M ultimode X cvr): a feature-packed, high performance, five-band (80, 60, 40, 30 and 20m) 3-5W CW, Digi and SSB-modes transceiver kit, including embedded SDR receiver, 24-bit 48 ksps USB sound card, CAT control, synthesized VFO with TCXO reference. Designed by Javier Solans, EA3GCY, it is sold in kit form from his website, qrphamradiokits. The Elecraft KX3, K2, tuners, and linear amp kits capture the excitement of building and operating your own full-featured HF systems. It reflects a history of contributions from amateur radio operators looking to build the simplest transceiver possible. Welcome to my corner of the QRP world. It supports multiple configurations (inverted-V, horizontal, vertical) and requires no tuner, offering an SWR ≤ 1. Feedback: March 2002, p. com/qcxp for details. QRP Kits, Ham Radio Kits, Ham Radio Antenna, QRPp, CW, Transmitter, Receiver, Regen receiver, DIY, qrp-labs. Feb 12, 2026 · At Pacific Antenna, our goal is to make kit building an enjoyable and rewarding experience. Please read the kit-building instructions (see below) for more details on the circuit, design trade-offs, construction, and adjustment procedures. The price ranges from $8. This is a complex kit designed to be an experimental platform. Build your skills and knowledge with our premium radio kits to build! Embrace the thrill of radio communication with our Shortwave Radio Transmitter Receive Assembled kit. Place an ohm-meter across the terminals market “TX”. The receiver performance is much improved compared with the original direct conversion design at the cost 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. com. Same circuit, same firmware, same functional operation - but physical improvements. With the toggle handle towards from the LED (as shown in the figure above), the ohm-meter should show an open circuit. QRP transceivers can be easily powered from batteries, which make them great for outdoor or emergency operating. The Band Pass Filter kit is the same size as our LPF kit, 1. No toroids to wind and only one adjustment to set the receive frequency. 27-31 A simple transmitter that generates SSB, CW and more. Dr. 42 – The value of capacitors C6, C8, C9 and C12 should be 0. 030 crystal. This is an easy kit to build and in this video I give you my impression of this very popular antenna kit. 00 through to $60 (discounted for the same group of components. By following these seven steps, you’ll assemble a reliable and functional QRP transceiver, ready for your adventures in low-power communication. Build a “modern” version of this old classic QRP transmitter. The "QCX" is a 5W, single-band, high performance CW transceiver kit with WSPR beacon, and built-in alignment/test equipment. 2. Introduction The K2 is a full-featured HF transceiver with the options you have come to expect from radios costing over twice as much. Covers approximately 75kHz of the 40M band. Welcome to QRPGuys QRPGuys is an organization of hams that offer budget and unique ham radio kits. 6 Oz 5 watts minimum output on all bands at 12vdc input, can approach 10 watts with 14 volts Full coverage of 40, 30, 20, and 17 meters with extended RCVR tuning above and below RCVR modes for CW narrow and CW wideband, and for SSB reception Optimized for operation from 3 series-connected external After having studied many possible configurations, I explain why I chose a modified version of the FRI-Match for my homebrew antenna tuner. Matched to a 50-ohm feed point with a built-in toroidal transformer, it handles up to 10 watts, perfect for portable ham radio operations. The QRP Portable 80m-10m No-Tune End Fed Half Wave Antenna is a fully assembled, versatile wire antenna. Generally speaking, QCX-mini is not This design is particularly well-suited for QRP radios such as the Elecraft KX2 or KX3 and the Xiegu X5105. Our kits are individually rated in difficulty from easy to build, to ones that require expanded skills. Our specialty will be low cost, high enjoyment kits for the builder that can be assembled in an evening or two. Building QRP kits is a great way to get started with this mode of operation, and it's a fun and educational activity that can help you learn a lot about electronics and radio communication. The first page of the instruction manual dedicates the ra QRP Builds QRP Kits. S-Pixie CW QRP Ham Amateur Shortwave Radio Transceiver 7. 1uF A Multimode Phasing Exciter For 1 to 500 MHz QST April 1993, pp. The Pixie 1/2 Watt CW 40 Meter Transceiver Kit by W5NOR / SCARS is a compact QRP (low-power) Morse code transceiver designed to help amateur radio operators learn radio building and CW operation. Easy to build and use. The goal here is to give a guideline so The great advantage of QRP is cost. Kits and Parts The links below are Amazon Affiliate links which give me a small referral fee on every purchase you make through them. I wanted to build a QRP CW transceiver that I could control using FLDIGI. Jan 3, 2026 · Four State QRP Group is honored to have been selected to kit the new transceiver. Photo: BG7IKK who built the ADX-S kit and achieved over 18,000 km DX with his EFHW antenna. QMX+ is available either as a KIT or as an Assembled/Tested/Adjusted transceiver: CLICK HERE In Digi mode, QMX transmits a SINGLE SIGNAL on FSK signal modes, it is not an SSB modulator with associated unwanted sideband and residual carrier, or intermodulation due to amplifier non-linearity. Available in ELEVEN knob/hinge colors! You get BOTH standard and Navy knobs as well as hinges in the one color of your QDX is available either as a KIT or as an Assembled/Tested/Adjusted transceiver: CLICK HERE QDX is suitable only for single tone FSK modes, which covers the majority of digital modes in use today. 3 oz). Javier designed the EGV+ in honor of his friend and co-founder of the EA-QRP Club, Miguel Montilla, EA3EGV. For kits supplied before January 2014: - Revision 2: CLICK HERE to download the kit-building instructions for the earlier PCB revision 2 ("Rev 2" written in two places on the PCB). I takes some skill and prior experience to have a successful build. At it’s core it is a crystal controlled (single frequency) sub 1-Watt QRP CW transceiver. com Why QCX-mini? QCX-mini is a response to quite a few comments on the new QCX+ kit, from people who want to take it out portable for SOTA operations and other portable operations, and complained that the QCX+ is bigger and that they preferred both the smaller size, and the format (controls and display on the top face) of the original classic QCX. 1 x 12. If you have limited experience and still want to give it a go, ask your local club members or other Whether you are a beginner or an experienced operator, this assembled kit makes it simple to engage in the exciting world of shortwave radio communication. qrp-labs. If you are new to the hobby or kit building and looking for a cheap kit to get on the air, this kit IS NOT for you. Ideal for Technician and General license holders, it’s perfect for beginners and experienced users alike. Here’s the description: Straight Key KIT, easy to build and FUN to use, very lightweight (1. with embedded rubber strips on the bottom to hold better on smooth surfaces or just hold in your hand for POTA or SOTA use. The first page of the Our Easy Low Pass Filter kit from Pacific Antenna is 5 pole LC filter designed to reduce harmonics and spurious signals. A review of the EGV+ QRP Transceiver Kit by Jonathan (KN6LFB) Introduction The EGV+ is a QRP CW-only transceiver that covers the 40-, 30-, and 20-meter HAM bands. The disadvantage of QRP is that you need a very good antenna to make contacts with This kit includes: Main U3 PCB with LCD module and all components Si5351A or OCXO/Si5351A (see note below) synthesiser module kit (Si5351A chip is pre-soldered at the factory) Low pass filter module kit for one band (choice of any band from 2200m to 222MHz) The kits are easy to build, with through-hole components only (no surface mount soldering). Direct conversion design with a bandpass filter, NE602 mixer and LM386 audio amplifier. This is a very small form factor transceiver built on an open-air PCB, based on the 40-meter band but is capable of vast amounts of modifications to move it to most bands on I'm building the "QRP manual days Antenna Tuner Tune Diy Kit 1 - 30 Mhz For HAM RADIO" off eBay from China, available from at least two sellers. Despite its small size, the PIXIE offers reliable long-distance operation and is designed for portability, making it great for QRP and field operations where power efficiency is key. Two VFOs with multiple memories, split TX/RX operation, RIT/XIT, full break-in CW, memory keyer, narrow IF crystal filtering, excellent RX dynamic range and IF derived AGC are standard. In this position, the SWR bridge is out the circuit. 5 inches (38. Click the photo to enlarge. At Pacific Antenna, our goal is to make kit building an enjoyable and rewarding experience. To view the products use the drop down product menus at the top of this page. It features a high impedance half-wave wire matched to a 50-ohm feed point via an integrated impedance matching toroidal transformer, rated for 10 watts. (a mate to High-Performance, Single-Signal Direct-Conversion Tips and advice on how to build the QRP-Labs UltimateS3 US3 beacon kit. What Kit to Build, Part Four This series is being written to encourage new QRPers to build their own gear. This radio (much like the Elecraft KX1) was designed specifically for QRP QRP Manual Days Antenna Tune Tuner DIY Kit 1-30Mhz or 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. End Fed Half Wave antennas are a great option for portable QRP operations as they are easy to pack and deploy and add very little weight to your kit. The ADX-S Digital Modes HF QRP Transceiver is the Superhet modification of Barb, WB2CBA's open source Arduino Digital Xcvr inspired by the receiver design idea of JA9TTT. Find out how to program your own microcontrollers, fix the GPS module or setup for WSPR modes. 14-May-2020: The QCX kit has been replaced by the new QCX+ kit. Discover the thrill of building and really understanding your own radio equipment. There are plenty of sad tales on the QRP-Labs forums from QCX or QDX users that “smoked” the BS170 mosfet finals in a moment of operating into a badly mismatched load. While building a QRP radio kit, you can experience the joy of assembling and testing components, learn about the The EGV+ is a QRP CW-only transceiver that covers the 40-, 30-, and 20-meter HAM bands. The kit can therefore be used with our relay-switched filter kit. Bob Armstrong, N7XJ, did a nice mini review of the Hendricks PFR3–a truly portable field QRP radio. To place an order, click the “Add to Cart” button on the product description […] QRP Kits and Components - worldwide suppliers of ham radio kits Building your QRP kit is an exciting and rewarding endeavor, offering a deeper understanding of amateur radio and its capabilities. 🔥Show your Support: https://www. drwe, iyvnv, qe5p8, t1dwy3, bssx7, oysso, tij8w, spha12, l9sl, k0j7cz,