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K9AY 160M / 80M Receiving Loop Antenna System by K7SFN

50 MHZ Moxon antenna based on the KG4JJH design with some slight modifications in the construction

Antan is a homemade antenna analyzer project by F6BQU

A wire delta loop antenna project for six meters band

A Quagi antenna project with pictures and dimensions for a UHF Quagi antenna

Demonstrates the construction and measurement of a single-turn HF receiving loop antenna, built from common materials like electrical conduit and lamp cord. The resource details the physical dimensions, including a 4-meter circumference, and calculates the theoretical inductance at approximately _6.4 uH_. It outlines a method for determining resonant frequencies across the 4-17 MHz range using a _C Jig_ and a _VR-500 receiver_, coupling the loop with a ferrite ring. The article also discusses the impact of receiver coupling on the loop's Q factor, noting a degradation in sharpness due to the transformer's reflected impedance. Analyzes the observed resonant frequency patterns, highlighting an unexpected rise in the loop's effective inductance at higher frequencies, particularly above 13 MHz. While some increase is attributed to distributed capacitance, the rate of rise suggests further investigation. The experimental setup provides practical insights into the challenges of maintaining high Q in simple receiving loops and offers a comparative reference for other homebrew antenna projects, such as those by _VK2TPM_.

A simple TRAP-dipole project for 20 and 40m bands includes EZNec simulations

The Vee Beam antenna project presents a versatile solution for hams, enabling operation across all eight High Frequency bands (80m to 10m) with significant gain on 20m to 10m. This easy-to-construct antenna utilizes two long wires at an angle, enhancing directional performance and minimizing ground losses. With a low visual profile, it is discreet and effective for various applications. The design allows for optimal leg lengths and included angles, ensuring robust performance while maintaining simplicity in construction and operation. The V Beam antenna is an aerial that you can use on all eight High Frequency amateur bands (80, 40, 30, 20, 17, 15, 12 and 10m) with an antenna tuner, and which gives significant gain on the five bands from 20 to 10 meters band.

A 3 element yagi antenna project for the 144 MHz band by PY5ALZ in portuguese

The document provides a detailed guide on modifying an inverted-L antenna to include the 160 meters band. This enhancement allows amateur radio operators to utilize the lower frequency effectively, which is crucial for long-distance communication, especially during the night. The inverted-L design is popular due to its compact size and ease of installation, making it suitable for various environments. By adding top band capabilities, operators can engage in DXing and contesting on 160m, expanding their operational range and opportunities. The guide includes practical tips and considerations for construction, ensuring that the antenna maintains its performance across the extended frequency range. It discusses the necessary adjustments and materials required for the modification, along with potential challenges and solutions. Whether you are a seasoned operator or a beginner, this project can enhance your station's capabilities, allowing for more versatile operations and improved signal quality on the 160m band.

A 500-watt mobile antenna project details the conversion of an old 10m hamstick into a highly efficient, multiband "bugstick" for HF operation. The core modification involves replacing the original coil with 25 turns of 6 turns-per-inch, 1.5-inch diameter coil stock, fabricated from #14 wire. This design, intended for a 3-magnet mount on a vehicle cab, achieves resonance on multiple bands by shorting out specific turns on the coil, similar to a **bugcatcher** antenna. Measurements taken with an MFJ-259 analyzer on a GMC pickup show 0 turns shorted for 20 meters (14.2 MHz), 10 turns for 17 meters, 16 turns for 15 meters, 19 turns for 12 meters, and 23 turns for 10 meters. The construction emphasizes using UV-resistant tie-wraps and #14 solid wire with crimp lugs for robust RF connections, bypassing the fiberglass rod for current flow. A bonus section details a 40-meter version, utilizing 48 turns of 8 TPI, 2-inch diameter coil stock.

A moxon antenna project for the 145 MHz

A ground plane antenna for 80 meters band

KE4UYP project for a top fed 1/4 wave lenght linear loaded vertical for 80m or 160m

A dual band wire antenna project in Italian

An interesting home made project of an L Network Antenna Tuner Project with pictures and schematics by K7SFN

How could we share the Beverage antennas on more than one station using this homemade remote antenna switch, a project by TK5EP

This article describes a project of asymmetrical hatted vertical dipole, a portable antenna that can be used for field day operations, sota, campings or even for fixed installations. This is a freestanding 20-10m antenna that is really easy to build, easy to tune and relatively easy to carry.

A project for a home made 5 element yagi-uda antenna for 2 meters, covering 144-148 MHz band by N1BMX

Long Range Wi Fi Antenna by AB9IL

Some rules of thumb for beginners, with a QRP approach, by James R. Duffey KK6MC/5

A Lindenblad Antenna for 145 MHz and 435 MHz with an integrated 50 MHz J-pole

An introduction to history of Morgain Antenna, since the early origins in Virginia, to the current home made projects and design available on the net. Article in Italian

A PDF presentation of a home made moxon antenna for 50 MHz 70 MHz and 144 Mhz. The project is mainly out of surplus plastic Plumbing pipes and clips etc, and also details of how the dimensions were calculated.

This is a design for a stealthy HF multi-band vertical wire antenna using a tree as a supportby G7AQK

This article document a 2 element half wave collinear J-Pole antenna by KC9EOT and KB8OJH

Shortened vertical antenna for 40 meters band an homebrew project

Offer a wide range of homebrewing projects mainly for VHF UHF operations. From vhf antennas to preamplifiers, chargers and power supplies

A New Twist on Portable Multiband HF Dipoles, a Multi-band Spiral Dipole Off-Center-Feed match (OCF) antenna solution.

This article explain how to homebrew and use an HF antenna analyzer by simply adapting a Windows PC, micro-controller and a DDS evaluation board by K6BEZ

A project of a bobtail-curtain antenna for 10 MHz

A SQ Loop antenna for 50 MHz, project include pictures and schematic diagram

DIY a Wi-FI Helical Antenna for better performances, a project by PA0HOO i Dutch end English

A DIY project of a WiFi 10 elements Yagi antenna

Rotator controller, azimuth & elevation control of rotators (automatic antenna turning) based on commands from computer. A project by Pavel VACHAL and OK1DX - KF9VM

Make your own loading coils for antenna projects using Caterpillar Grommet strips.

Centre fed half wave dipoles make great, simple and effective antennas for the HF bands. Sometimes however, the centre feed is not ideal. This great project will improve the overall antenna performance.

Comparison of 50 and 70 Mhz antennas, commercial and home made projects

This antenna analyzer measures complex impedance over the 1.6 - 33 MHz HF spectrum

Collection of telegraph keys homebrew antenna projects links to radio software

Lot of useful information on experiments on 136 Khz band, with antenna tips DSP infos and notes on their activity in LF.

Interesting article on multiband fan dipoles. This article give an overview on designing this wire antenna, and planning a robust installation and proper feed line. Includes notes on setting up a commercial fan dipole antenna and on how diy your own.

A 2-metre Quad antenna project by K6WXA in PDF file

A 40/80 inverted L antenna project by Myron WVØH

W3EDP antenna assembly instructions and dimensions with pictures in this PDF File

RFAC Solutions specializes in providing a range of RF components, including various connector types, cable assemblies, attenuators, and filters. Their product line features common connector standards such as SMA, BNC, TNC, N-Type, MCX, and MMCX, essential for reliable RF signal paths in amateur radio and commercial applications. The company also offers high-power VHF amplifiers, catering to needs for signal boosting in specific frequency ranges. Their offerings extend to dust caps and adapters, which are crucial for maintaining the integrity and versatility of RF systems. The focus on supplying components from South Korea suggests a commitment to specific manufacturing standards and supply chain practices. This resource details a vendor's product scope, useful for hams sourcing specific parts for shack builds or antenna projects. Jeff is listed as a contact for inquiries.

Selecting appropriate cabling for amateur radio installations, whether for antenna feedlines, control lines, or station wiring, is critical for optimal performance and safety. This resource provides access to a manufacturer specializing in a broad range of electronic and electrical cables, including options suitable for various ham radio applications. Their product line encompasses standard and custom cable solutions, designed to meet specific operational requirements for both indoor shack setups and outdoor antenna systems. The company emphasizes _proven quality_ and compliance, with products certified by the Canadian Standards Association (CSA), Underwriters Laboratories (UL), and Intertek (ETL). Their quality management system is registered to _ISO 9001:2015_, ensuring consistent product standards. They offer competitive pricing and utilize AI-logistic tools for reliable on-time delivery, serving customers globally with technical support. Access to detailed technical specifications and an online quote tool is available for registered site members, facilitating precise cable selection for projects requiring specific impedance, shielding, or environmental ratings.

Have you problem with your RG cables ? This page describes a smart antenna box using an RG-cathode for 3 antennas. The remote control needs just a simple wire and the GND for remote-control

A four element 2 meter quad antenna project

The Yagi-Uda antenna, information on basic design, project and measure of Yagi-Uda antenna, include free repository/sample of beam antenna.