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Query: Homemade
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This resource provides comprehensive instructions for constructing a 2 element quad antenna specifically designed for the 10, 12, and 15 meter bands. The antenna features a diamond configuration, which offers improved gain compared to a square configuration. The author shares insights into the materials used, including a square-aluminum boom and bamboo poles, along with construction techniques that ensure durability and optimal performance. This project is ideal for amateur radio enthusiasts looking to create their own antennas at home. In addition to construction details, the author discusses the antenna's performance, noting its effectiveness even at a height of 8 meters. The quad antenna reportedly performs comparably to a 3 element yagi, with excellent SWR readings and strong signal reports from European stations. This project is suitable for beginners and offers a cost-effective solution for those interested in enhancing their amateur radio setup with a homemade antenna. -
Homemade 40 through 6 meter HF portable multiband antenna, an aluminium antenna construction article, with plan, drawings and photos -
The Cubic Quad antenna is a commonly homemade antenna in the range of about 150 odd MHz. Our little project was to design one of these for use in the 2.4GHz range for 802.11 wireless LANs. -
DJ9RB details several antenna projects, including loaded dipoles and verticals specifically for the 160m, 80m, and 40m amateur radio bands. Featured designs include a 160m loaded dipole with end capacitance, a 160m loaded L-antenna, and a 160m kite-supported vertical. For 80m, the resource describes a short broadband dipole (80BBDP), an 8m high top-loaded vertical (TLV80) with elevated radials, and a shielded loop for 3.5 MHz. For the 40m band, a 7m high top-loaded vertical (TLV40) and a 6m high portable top-loaded GP (TLV40mesh) are presented, both optimized for 7 MHz. Additional dipole designs cover 40m, 30m, 20m, 17m, and 6m bands, utilizing coaxial cable traps. The page also mentions specific vertical antenna variants like the TLV20 (GP14MHz) with two radials and the TLV30HWL-10MHz, a loaded half-wavelength vertical. The content includes information on high-power homemade components, such as a 3.5 MHz AM transmitter from 1964 and a 14 MHz portable transceiver from 1977. It also touches upon measurement instruments, BNC connector assembly, and QTH details from DJ9RB's operations, including H44/DJ9RB from the Solomon Islands. -
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Yagis for homemade with a new match-system, for 6m, 4m, 2m, 70cm and Shortwave -
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This multiband wire antenna it is an off centre fed dipole, with 10 feet of vertical radiator, needs no tuner on 40m, 20m and 10m and works fine on all bands above 40m with a tuner, and even below 40m on 60m, and 80m. -
This PDF File desscribes how to homemade a multi-band end-fed trapped wire antenna resonating on the low bands of 160 80 and 40 meters. Contains trap design instructions and some construction tips. -
A new and simple method for tuning traps. You need 2-3Watt of your TRX and two homemade coupling coils by DK7ZB -
A homemade antenna plan for a portable yagi beam antenna for the Six meters. Consist of a 3 elements yagi beam design include antenna dimensions, with elements lenght and spacing. -
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A homemade 16 foot falling derrick to tilt up a 50 foot high, 18 inch wide Glen Martin aluminum tower by N6RK -
HF/6M antenna tuner preselector and antenna switcher project by ON6MU -
The homemade CW paddle key design, inspired by a QRP homepage, utilizes soldered PC board material for its construction. The builder, DL5NEJ, modified an existing design to achieve a smaller footprint, preferring a compact setup for portable operations. This paddle was specifically built to complement a Wilderness Radio SST20 QRP transceiver kit, demonstrating its suitability for low-power operations. The project details suggest a straightforward assembly process, with the primary components being readily available PC board scraps. The design emphasizes simplicity and functionality, aiming to provide a reliable keying experience comparable to commercial paddles like the Bencher. Performance evaluations indicated the simple paddle operates effectively, prompting further exploration into similarly minimalist QRP rig designs. Additional construction details for a similar paddle are available from PA0CMU. -
An cheap homemade azimuth and elevation rotation system using an Arduino/AVR. -
A homemade Magnetic Loop antenna from a spare 3m length of RG213 working from 30m to 15m with a 130pF tuning capacitor -
The document discusses a two-element parasitic Delta-Loop array for the 40 meters band, aimed at radio amateurs interested in antenna projects. It provides detailed plans and instructions for building a homemade Delta-Loop antenna. -
An analogic Meter for yaesu FT 857 and 897 by I6IBE in italian -
An homemade portable vertical antenna with a trap near the mid point of the main element. The trap is made with 42mm diameter PVC pipe with 9 turns of wire on it -
An homebrewed dipole antenna for 14MHz -
The Kenwood TH-F6A handheld transceiver can achieve an extended transmit frequency range of 137-174 MHz, 216-235 MHz, and 410-470 MHz by removing a specific diode and chip resistor from the main PCB. This modification also expands the receive range on the A-band to 142-152 MHz, 216-235 MHz, and 420-450 MHz. For the TH-F7E, the transmit range extends to 137-174 MHz and 410-470 MHz, with a corresponding receive range on the A-band. Performing these hardware changes will reset and initialize the radio's memory contents, necessitating prior backup of important channel frequencies. Instructions are provided for constructing a homemade PC programming cable compatible with the Kenwood TH-G71A, TH-F6A, and TH-F7E. The interface utilizes an RS-232-to-logic (0-3.3V) level-shifter and a full-duplex serial connection, adapting the Kenwood PG-4S cable schematic for the TH-G71's 2.5mm and 3.5mm phono plugs. Specific schematic tweaks include changing R1 from 150 ohms to 1K ohm to optimize power from the serial port and adding a 150K ohm resistor between the Radio TXD and ground to manage the 3.3V I/O pin. Detailed plug pinouts for the 2.5mm and 3.5mm connectors are presented, with the interface's TXD connecting to the ring of the 2.5mm plug and RxD to the shield of the 3.5mm plug. Ground connects to the shield of the 2.5mm plug, while the tips of both plugs are no-connects. Debugging procedures cover verifying positive and negative power rails from the serial port, checking component polarities, and testing level-shifting and inversion functions of the interface. Software setup involves enabling "TC ON" (Menu 15 for TH-G71, Menu 9 for TH-F6) and using Kenwood's MCP programming software. -
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Circuits, pictures and data about toroids, tubes and home made power amplifiers -
A homemade remote antenna switch made with an Arduino Uno by KK7S -
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My first homemade SSB and CW receiver 10 kHz to 30 MHz -
CW paddle made with a steak knife some simple hardware and a stainless steel fork -
Homemade SWR PWR Meter based on Arduino -
A project for a homemade multiband Hexbeam antenna for 10, 12, 15, 17 and 20 meters -
Based on original G2BCX design this J-Pole antenna for the six meter band is made with a homemade ribbon cable. The antenna shown in this article includes a coaxial cable choke feed to remove RF currents from flowing on the outer of the cable. -
Antan is a homemade antenna analyzer project by F6BQU -
A dipole for 2m, 4m, 6m band an hamdwritten note for a homemade vhf antenna that can be tuned across the VHF band -
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How could we share the Beverage antennas on more than one station using this homemade remote antenna switch, a project by TK5EP -
A homemade VHF/UHF vertical antenna made essentially with RG58 coax cable, with a 9 turns choke balun to prevent the shield acting as a RF Radiator. -
This document contains the detailed instructions to build a homemade lindenblad antenna using a twin-lead as dipole elements. This document contains 9 pages and includes a detailed construction sequence and some drawings to build this antenna for UHF and VHF ham radio bands -
This homemade tube oscilloscope is based on the WaterMan Pocket-Scope 0510A, a 3 tube oscilloscope made in 1946. -
An homemade portable trapped dipole antenna for 40 and 80 meters band with an optional extension for the 20 meters. -
An off centre fed dipole, with 10 feet of vertical radiator. It needs no tuner on 40m, 20m and 10m by M0UKD -
A homebrewed antenna for 2m handheld radios by TB1BIG -
A homemade QRP Dummy Load with built-in RF detector -
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The Sharpie Probe, homemade with simple tools and few resistors -
An homemade fan dipole antenna for 20 30 40 meter bands, setup in a 15 meter wide garden. The longest leg for 40 meter is folded to fit in the 7.5 m -
A homemade tunable bandpass filter for all HF bands from 160m to 10m -
Homemade hamstuf, mostly homebrew antennas in Dutch -
A 5 elements homemade DK7ZB yagi antenna for 4 meters band based on a 50MHz TONNA -
Homemade Loaded Coil Dipole ( w8010 diamond ) for 10, 15, 20, 40 and 80 meter