Whip antenna for Yaesu FT-817
DIY telescopic whip antenna with toroidal matching unit for Yaesu FT-817 QRP portable operation
Description
A 1.5-meter telescopic whip antenna project for the Yaesu FT-817 QRP transceiver is presented, offering a cost-effective alternative to commercial portable antennas like the Whip Miracle. The design incorporates a toroidal matching unit with a rotary switch for band selection and a toggle switch for fine-tuning the coil taps. This setup allows operators to achieve a low Standing Wave Ratio (SWR) across various HF bands, despite the inherent limitations of a physically short radiator on lower frequencies.
The construction details include photographs of the completed unit, showcasing the compact enclosure and the integration with the FT-817. A simple schematic illustrates the coil tapping arrangement and the switching mechanism, guiding hams through the assembly process. The project emphasizes practical, portable operation for QRP enthusiasts, acknowledging that while performance on bands like 80m or 40m will be modest, it can still facilitate contacts under favorable conditions with skilled operation.