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This halo antenna for 50 MHz is made with a true Gamma Section this time and is fashioned from aluminum

The Jones version of the Lawn Chair 6M Halo

Halo antenna for 4 meters band with dimensions, pictures and assembling instructions

A project for a 144 Mhz halo antenna

2 Meter Halo Antenna project by Mike Fedler with many detailed pictues and detailes homebrewing instructions so you can build your own

2 meter & 70 centimeter mobile halo antenna project, by N6TWW Mike Fedler

An halo stack antenna for 70 cm by KR1ST

This halo antenna was built to have an omnidirectional coverage while working in VHF contests.

The Homebase10 is a simple to make wire halo antenna for 10m (28MHz) built using parts available from the local DIY store.The resulting antenna is very effective on 10m despite its small size and light weight.

This HALO design is not ground dependent and can be mounted atop a section of PVC.

Stacking 2 Meter Halo Antennas by Mike Fedler N6TWW

Halo antenna plan for the six meters band

An interesting homebrewed gamma match feed for a Halo Antenna

A well documented article about construction and analysis of a horizontally polarized halo antenna for 6 meters band by Dr. Carol F. Milazzo, KP4MD

Article on a 2 and 6 meters halo antennas that does not require a mast has a very low part count and can easily be built with a minimum of tools.

Italian web site describing a project for a 2 meters home made halo antenna

An Halo antenna for the six meters band in French

Construction and analysis of a low cost omnidirectional horizontally polarized antenna for 144 MHz, including notes on halo antenna stacking

The Homebase-10 is a wire halo antenna for 10m built with DIY store parts, effective despite its small size. Includes a dual-band version for 10m and 6m with gain around 0 to -2dBd, near omnidirectional pattern, and horizontal polarization. Overview based on a 2008 Practical Wireless article.

The antenna described in this article is for 50 MHz, but the design can be scaled for any band, including VHF, UHF, or even the higher HF bands. The antenna is nothing more than a square loop of wire, approximately 30" (or ~76cm) per side. The loop is fed in the middle of one side, and the opposite side to the feed point has a gap in it.

How to build a limited space 10 and 20 meter band Square Halo DX antenna. A horizontally polarized antenna for 10 and 20 meter band, which is suitable for a limited space.

Launch of a hybrid rocket from high altitude by untsville Alabama L5 Society

Heltec Automation specializes in the production of _ESP32-based_ LoRa development boards, wireless modules, and gateways, catering to various amateur radio applications. The product line includes devices suitable for _APRS LoRa trackers_, Meshtastic nodes, and general long-range, low-power RF projects, providing hardware solutions for digital communication experimentation. The company's offerings support diverse wireless protocols such as LoRa, LoRaWAN, Meshtastic, and Wi-Fi HaLow, enabling users to build custom communication systems. Specific products like the _Wireless Stick Lite_ and various Heltec LoRa boards are designed for integration into DIY projects, facilitating rapid prototyping and deployment of wireless solutions. Heltec provides detailed product specifications, documentation, and community support, which assists hams in leveraging their hardware for packet radio, digital modes, and IoT applications within the amateur bands. The focus remains on versatile, programmable modules that bridge traditional amateur radio interests with modern wireless technology.

LILYGO specializes in the research and development of IoT solutions, offering a diverse range of development boards. Key products integrate LoRa and GPS capabilities, alongside various display options such as LCD and OLED. Specific examples include the _T-SIM / T-A Standard Series_, _T5 E-Paper S3 Pro Lite_, _T-Halow P4_, _T-Dongle C5_, and _T7-C5_. The company also provides the _T-Solar Kit_ and _T-Sim Shield_, catering to diverse project requirements. Hot sales items feature the _T-Display S3_, _T-Embed CC1101_, _T-Deck Plus_, _T-Embed CC1101 Plus_, _T-Deck Plus Meshtastic_, _T3 LoRa32 V1.6.1_, and _T-Display S3 AMOLED_. These boards often incorporate ESP32 microcontrollers, facilitating wireless communication and display functionalities essential for amateur radio digital modes and data telemetry applications. LILYGO provides entry-level sample code for most products, aiding learners in rapid prototyping and deployment. They also offer customization support for specific customer needs, demonstrating a commitment to supporting both individual makers and larger-scale integrations. The company actively participates in events like Maker Faire Rome, showcasing open-source solutions to the global maker community.