The Yaesu FT-890, a versatile dual-band FM transceiver, is a popular choice among Ham radio enthusiasts for its portability and functionality. Despite its numerous features, some hams opt to modify or "mod" their FT-890s to enhance performance or add custom functionality. This article explores various Yaesu FT-890 mods, their benefits, and step-by-step guides to help you upgrade your experience.
Before we dive into the specific mods, it's essential to understand that modification involves tinkering with your radio's internal components. Always ensure you follow safety guidelines and, if unsure, consult a qualified technician. Now, let's explore two main categories of FT-890 mods: hardware and software.
Hardware Modifications
Hardware mods focus on improving the FT-890's physical components or adding new features. They typically require opening the radio and handling its internal circuitry, so patience and precision are key.
Remember, modifying your radio may void its warranty. Proceed at your own risk and always backup your settings before starting any mod.
Audio Filter Mod
The Yaesu FT-890's stock audio filter can sometimes let in unwanted noise. A popular mod involves replacing the stock filter with a high-grade audio filter capacitor for improved sound clarity. The mod is simple and requires only a basic soldering iron and some patience.
Here are the steps: 1. Open your FT-890 and locate the audio filter capacitor (usually a 47uF electrolytic capacitor near the antenna input). 2. Carefully desolder the stock capacitor and replace it with a high-grade capacitor of the same value. 3. Reassemble your FT-890 and enjoy enhanced audio quality.
External Speaker Mod
While the FT-890's internal speaker is functional, some hams prefer the volume and tone of an external speaker. This mod involves connecting an external speaker and, optionally, replacing the internal speaker with a dummy load.
To perform this mod: 1. Purchase an 8-ohm, 3-watt speaker (like the PE-9000) and an SPG-890 external speaker kit. 2. Follow the kit's instructions to connect the external speaker to your FT-890. 3. For better audio quality, replace the internal speaker with a dummy load. Unsolder the internal speaker and connect a 2.8k ohm, 1/4 watt resistor in its place.
Software Modifications
Software mods don't require opening your FT-890 and instead focus on altering its internal programming. They often provide new features or improve existing ones.
Before proceeding with any software mod, ensure you have a programming cable (like the PE-9000) and appropriate software (like YaExpert or Chirp). Always backup your settings before making changes.
Memory Channel Expansion
The FT-890 comes with 200 memory channels by default. This mod increases the memory capacity to 500 channels, allowing for more presets and improved organization. The process involves flashing a custom firmware file to your radio.
Here's a simplified guide: 1. Download the expanded memory firmware file (e.g., "FT-890_500ch.hex") from a trusted source. 2. Connect your FT-890 to your computer using the programming cable. 3. Use your chosen software to flash the custom firmware file to your FT-890.
Custom menus and features
Custom firmware files can also add entirely new features or re-organize the FT-890's menus. For instance, some hams prefer to have the mode, tone, and DPL/DTCS settings grouped together in the menu for quicker access. Others may opt for newly-added features like automatic gain control or freqproc display customization.
To install these mods: 1. Download the desired custom firmware file. 2. Connect your FT-890 to your computer. 3. Use your chosen software to flash the custom firmware file to your FT-890.
Modifying your Yaesu FT-890 can enhance your Ham radio experience, but it's essential to approach each mod with caution and respect for your radio's internal components. Always ensure you understand the risks and benefits before proceeding and, if unsure, consult a professional technician. With that in mind, happy modding, and may your FT-890 serve you well on your Ham radio journeys!