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Homebrew GMRS 3 Element Yagi yagi for 462-467 MHz

An omnidirectional and horizontally polarized VHF antenna by EA4EOZ

Installing a classic G5RV Antenna in Slopinv-V mode by AI4WM

Delta loop antennas for 40 meters plans and comparison of some models

The HF horizontal loop has been around for many years now. This article includes a YouTube video and discusses the reasons for looking at this antenna, its design, and its installation. There are some on-air comparisons against three regular double bazooka (coax) dipoles and the Par SWL End-Fed antenna.

This is a one for all antenna tuner with wide range tuning on all the HF bands. The tuner is based on a G3WQW design. DIY project by PD7MAA

Pitcarin 2012 - VP6T Online log at clublog

Heathkit SB 220 mods, replacing the Zener ZD1, replacing the plate-voltage voltage divider, adding a keying circuit for solid state transceivers

The Speaky HF SSB transceiver and other homebrew projects Homebrew of radio equipment, antennas, tuner, etc.

A post about the construction and measurements of a Resonant Feedline Dipole cut for the 10M band

The page discusses the concept of a 2-element Parasitic Ground Plane antenna for the 40-meter band. It includes a conversation between amateur radio operators discussing modeling results and design considerations for the antenna. The author shares insights on radial configurations and the impact on antenna efficiency and pattern.

How to homemade a multi-band HF dipole using 100 meter of speaker wire, 2 strandsm including a homebrew 1:1 choke balun

Shortwave listener blog from near Rome Italy

Improve the stability of your Yaesu G-250 rotator.

A morse keyer project made on Arduino, inlcudes the main program script by m0xpd

G4ILO compares popular antennas for 2 metre band handhelds so as to see how much you lose using a small inconspicuous antenna or how much you gain by using a long antenna.

Presents construction details for Moxon antennas, specifically focusing on 10-meter and 17-meter band configurations. It covers practical aspects of building these directional wire arrays, including element spacing, feedpoint considerations, and material choices for optimal performance. The resource emphasizes homebrewing techniques suitable for amateur radio operators. Discusses the advantages of the Moxon rectangle design, such as its compact footprint compared to a full-size Yagi and its favorable front-to-back ratio. It provides insights into achieving proper impedance matching and structural integrity for portable or fixed installations. The content includes photographic examples of constructed antennas. Explains the iterative process of tuning and optimizing Moxon antennas for specific frequency segments within the 10m and 17m bands. It offers guidance on minimizing SWR and maximizing gain, drawing from real-world building experiences to assist constructors in replicating successful designs.

My Ham Shack - Personal Ham Shack Web Pages - At MyHamShack you get a free personal web page for your shack - Your Shack. Your Ham Shack Pictures, Blogs and Projects.

3W6C on-line log DXpedition 2010

Personal SWL log with various information from SWL tips and tricks to Frequecy Logs to general SWL information.

Notes about generating RF sweep signals on the Arduino for filter testing, a digital version of the old Wobbulator concept

7O6T log oline - 7O6T Club Log

Testing performances of indoor antenna. A comparison of a magnetic loop antenna vs a classic wire dipole done using wsprlite on 30 meters band.

This circuit enables fair copy of strong 444 MHz signals, off a local repeater, using a 2m rig and a 1/4λ 70 cm indoor ground plane antenna.

Cushcraft A3S HF antenna 1:1 balun repair.

Operating magnetic loop antennas requires careful consideration of RF safety, particularly regarding near-field magnetic field intensity. This resource presents calculations for magnetic field strength (H-field) at various distances from a magnetic loop, emphasizing that the H-field is significantly higher than the E-field in the near-field region due to the inductive nature of the radiating element. It provides specific formulas and examples for determining safe operating distances based on power levels and loop dimensions, crucial for compliance with RF exposure limits. The analysis compares calculated H-field values against FCC and ICNIRP maximum permissible exposure (MPE) limits for controlled and uncontrolled environments. It demonstrates that even at QRP power levels (e.g., 5W), the H-field can exceed MPE limits within a few feet of the antenna, necessitating greater separation distances than often assumed for electric field considerations. The practical application of these calculations helps amateur radio operators configure their stations to ensure personnel safety and regulatory compliance when deploying compact, high-Q magnetic loop antennas.

This antenna article is geared towards new Hams and antenna builders looking for a very inexpensive 6 band antenna that can be efficiently fed with 50 ohm coax without a tune

Articles about Amateur Radio, own writings and translations: history, DXpeditions, contesting and DXing ethics, Codes of Conduct, Suggestions for Pile-ups, Suggestions for Contesters, the most wanted DXCC entities.

Adam Brown's Blog from Latitude 80.19 South Longitude 81.16 West

Ultra-lightweight 2m Yagi for SOTA

A fully equipped amateur radio mobile radio shack by VE6AB

Stop common-mode current when transmitting with an end-fed antenna. Unbalanced antennas are very prone to currents on the outside of the coax.

How to receive JT-65 signals using a cheap RTL-SDR dongle with the 820T2 tuner chip

The latest info on the world of radio including:world,shortwave,pirate,digital,mw,lw news,links.

Presents the construction of a 2-meter **Skeleton Slot Yagi** stack, detailing the design process and practical considerations for VHF operation. The author shares insights from building and testing this antenna, emphasizing its performance characteristics for local and extended range contacts. The project outlines the specific dimensions and materials used, providing a clear path for other radio amateurs to replicate or adapt the design for their own stations. The resource covers the unique aspects of the Skeleton Slot radiator, explaining how its geometry contributes to gain and pattern control. It includes discussions on impedance matching and feedline considerations crucial for optimizing power transfer and minimizing SWR. The article draws on real-world testing, offering practical results that validate the theoretical design. This project serves as a valuable reference for those interested in custom VHF antenna solutions.

Pictures and description of a SteppIr vertical antenna setup in a small backyard using DX Engineering radial plates.

An homebrew project of a full wave delta loop antenna for the 40 meters band with dimensione, picture and assembling instructions in Indonesian

KD8KSB realization of the CJU satellite antenna that allow similar performance to the arrow antennas.

A wire antenna feeded with an unsymmetrical feed and a 1:4 balun can be tuned from 6 to 80 meters band but can be noisier than a dipole and cause RF in the shack

Pictures and description of a homemade 1.3 GHz and 2.4 GHz RF Signal Source

An comprehensive article on 40 meters antenna comparing vertical height to the resulting gain

An interesting article on choosing the right battery when operating in portable mode, considering charging time and modes, weight and size.

A no ground antenna solution for backpackers, balconies or plastic car bodies, like RV or other portables uses where is difficult to find a good counterpoise by PD7MAA

Homebrewing dummy load by M0XPD

Setting up a new antenna Mast for dipoles at VE3VN

Special logging program, optimized for mobile, portable, and field operations. This software exports data in the ADIF which then may be imported into your general logging software, or online services. Currently available for Android.

Android app by VE3VN that show view of night, day and terminator around the globe. This gives a strong hint of which bands and compass directions to focus on for best results.

Demonstrating the construction of a short dipole antenna tailored for the 60 meter band, this resource provides detailed instructions for radio enthusiasts with limited space. The design incorporates inductive loading using two inductors (L1/L2) made from PVC tubes, allowing for effective operation on 5 MHz. The antenna consists of 12 meters of wire, divided into four sections, with specific dimensions and materials outlined for optimal performance. Results from users indicate that this antenna can significantly enhance DXing capabilities on the 60 meter band. Feedback from operators suggests that while the design is effective, adjustments may be necessary based on individual setups, such as coil diameter and wire gauge. Many users report successful construction and operation, with some experimenting with variations to improve resonance. The practical application of this antenna design has led to successful contacts and improved signal quality, making it a popular choice among 60 meter band operators.

An interesting article about planning and testing beverage antennas for 80 and 160 meters in a rural location

An home made end fed half wave antenna with a tuner box by NG0R