Top Amateur Radio Websites – Issue 2629

This week, we’ve pulled together a few items that touch on practical build projects and some useful theory. There’s a look at constructing a simple, yet effective, multiband antenna for portable operations, something that comes up often for POTA activators. We also have a detailed build log for an automatic antenna tuner, which can be a real asset for those experimenting with various wire configurations. For the Icom IC-7300 owners, there are a couple of interesting modifications: one addresses a common complaint about fan noise, and another explores a custom microphone setup for improved audio. Finally, we revisit some fundamental principles regarding ferrites and coils, offering practical rules of thumb for RF projects, particularly useful for HF applications. It’s a mix of hands-on work and foundational knowledge, all aimed at enhancing the operating experience.

DIY Simple Low Profile Multiband POTA Antenna

This resource provides a comprehensive construction guide for a simple, low-profile, multiband antenna designed for portable operations. It details how to repurpose a photographer's tripod as a radiating element, making it ideal for POTA activators seeking an easy-to-deploy solution.

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Building an ATU-100 (N7DDC) Autotuner

This article presents a detailed, photographic build log for the N7DDC ATU-100 automatic antenna tuner. It walks through the entire assembly process, including winding components and modifying the EEPROM for QRP operation, benefiting hams interested in DIY tuner projects.

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Icom IC-7300 Noisy Fan Mod

This guide offers a modification for the Icom IC-7300 transceiver, focusing on replacing the stock cooling fan. It provides step-by-step instructions for installing a quieter Noctua NF-A8 PWM fan, a useful upgrade for operators bothered by fan noise during operation.

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Ferrites and Coils: Rules of Thumb for Ham Radio Projects

This resource outlines practical rules of thumb for selecting and utilizing ferrites and coils in various amateur radio projects. It covers applications up to 30MHz, providing valuable insights for experimenters and builders working with RF circuits.

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Dual Insert Microphone for Icom IC-7300 Transceiver

This project details the construction of a DIY dual insert microphone specifically for the Icom IC-7300 transceiver. It combines a Besson BZ2400 M4 rocking armature with an electret condenser, offering a custom solution for optimized transmit audio.

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RadioSmart Solutions

RadioSmart Solutions is a South African retailer specializing in amateur radio and mobile communication equipment. They offer a range of gear, including Anytone DMR and analog transceivers, serving the needs of local hams and mobile operators.

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That wraps up this week’s selection of resources. We hope you found something useful for your shack or next field day. Be sure to follow us for next week’s picks, and we always appreciate your thoughts and comments on our social channels.