yaesu ft-891 problems

Yaesu Ft-891 Problems and Possible Fixes

The Yaesu FT-891 is a popular HF transceiver known for its compact size, robust performance, and versatility. It is widely used by amateur radio enthusiasts due to its advanced features and user-friendly interface. However, like any piece of electronic equipment, the FT-891 is not without its issues. Users may encounter various problems that can affect the performance and reliability of the device.

Addressing these common problems is crucial for ensuring the FT-891 operates at its best. Whether you’re a seasoned radio operator or a newcomer, understanding these issues and knowing how to fix them can save you time and frustration. In this blog post, we’ll explore some of the most common problems with the Yaesu FT-891 and provide possible fixes to help you get the most out of your transceiver.

Common Problems with the Yaesu FT-891

Power Issues

Description: The Yaesu FT-891 can sometimes have trouble powering up. You might press the power button and nothing happens. Or, the device might turn on but then shut off unexpectedly. This issue is frustrating, especially when you are in the middle of using the radio.

Possible Causes: Several things can cause power issues with the FT-891. First, check the power connections. If the cables are loose or damaged, the radio may not get enough power. Second, the battery might be the problem. Batteries lose their charge over time and might need to be replaced. Lastly, internal faults within the radio can cause power problems. These faults might be due to a defect or damage inside the radio.


Description: Another common issue with the Yaesu FT-891 is overheating. You might notice the radio becomes very hot during use. This can affect the performance and lifespan of the device. In extreme cases, overheating can cause the radio to shut down to protect itself.

Possible Causes: Overheating often occurs due to extended use without adequate ventilation. If the radio is in a confined space or surrounded by other electronic devices, it can’t cool down properly. High output settings can also cause the radio to overheat. When the radio operates at high power for a long time, it generates more heat. Lastly, faulty cooling components inside the radio, such as fans or heat sinks, might not work correctly, leading to overheating.

Audio Quality Problems

Description: The Yaesu FT-891 sometimes has issues with audio quality. You may hear distorted or unclear sounds when using the radio. This can make it hard to understand conversations or enjoy your listening experience.

Possible Causes: Several things can cause poor audio quality. First, incorrect settings on the radio might lead to bad sound. Check the audio settings to make sure everything is set correctly. Second, poor antenna connections can also affect audio quality. Ensure that the antenna is properly connected and in good condition. Finally, issues with the internal speaker might be the cause. If the speaker is damaged or malfunctioning, the audio will not be clear.

Frequency Drift

Description: Frequency drift is another common problem with the Yaesu FT-891. During operation, you might notice that the frequency becomes unstable. This can make it difficult to maintain a clear connection.

Possible Causes: Various factors can cause frequency drift. Environmental factors like temperature changes can affect the frequency stability. Make sure the radio is used in a stable temperature environment. Internal component issues can also cause this problem. If there is a fault inside the radio, it may need professional repair. Firmware problems are another possible cause. Outdated firmware can lead to instability, so it is important to keep the firmware updated.

Software and Firmware Glitches

Description: The Yaesu FT-891 may sometimes show unexpected behavior. You might notice errors during operation. This can disrupt your experience and make the radio hard to use.

Possible Causes: There are a few common causes for these glitches. First, outdated firmware can cause problems. It’s important to keep the firmware up to date to ensure smooth operation. Second, software bugs can also lead to errors. Bugs might be present in the software that controls the radio. Finally, corrupted settings can cause the radio to act unpredictably. If the settings are corrupted, the radio may not function correctly.

Antenna Connection Issues

Description: Another problem with the Yaesu FT-891 is poor signal reception or transmission. You might have trouble receiving signals or your transmission might be weak. This can make communication difficult.

Possible Causes: There are several reasons for antenna connection issues. First, loose or damaged antenna connections can lead to poor performance. Ensure all connections are secure and undamaged. Second, an improper antenna setup can cause signal problems. Make sure the antenna is set up correctly for optimal performance. Finally, internal tuner problems can affect signal quality. If the tuner inside the radio is faulty, it may need repair.

Read More: Yaesu FTDX-10 Problems and Possible Fixes

Possible Fixes for Each Problem

Power Issues

Power issues with the Yaesu FT-891 can be frustrating. Here are some detailed steps to fix these problems:

Check and secure all power connections: First, examine all the power cables. Make sure they are properly connected and not loose. A loose connection can cause the radio to power off unexpectedly. Also, check for any signs of wear or damage on the cables. Replace any damaged cables to ensure a steady power supply.

Replace or recharge the battery: If the radio is not powering up, the battery might be the problem. Try recharging the battery fully. If the battery is old or doesn’t hold a charge, consider replacing it with a new one. A fresh battery can resolve many power issues.

Inspect the power supply for faults: The power supply itself might be faulty. Check if the power supply is working correctly. You can test it with another device to see if it provides consistent power. If the power supply is defective, replace it with a reliable one to ensure your radio works properly.


Overheating is a common problem with the Yaesu FT-891. It can cause the radio to shut down or malfunction. Here are some steps to address this issue:

Ensure adequate ventilation around the device: Place the radio in a well-ventilated area. Avoid keeping it in confined spaces where air cannot circulate freely. Proper airflow helps keep the device cool during operation.

Use the device in a cooler environment: High ambient temperatures can contribute to overheating. Try to use the radio in a cooler room. Avoid direct sunlight and heat sources. A cooler environment helps the radio maintain a safe operating temperature.

Lower the output settings if possible: High output settings generate more heat. Reduce the power output settings on your radio if you do not need maximum power. Lower settings can significantly reduce heat buildup.

Check and clean any cooling fans or vents: Dust and debris can block the cooling fans and vents, preventing proper airflow. Regularly check these areas and clean them if needed. Use a soft brush or compressed air to remove any dust. Clean vents and fans help the radio stay cool and operate efficiently.

Audio Quality Problems

Audio quality problems can be frustrating, but there are several steps you can take to resolve these issues.

Verify and adjust audio settings in the menu: Start by checking the audio settings on your Yaesu FT-891. Go through the menu and ensure all settings are correct. Adjust the volume, squelch, and any equalizer settings. Incorrect settings can cause distorted or unclear audio.

Check antenna connections and ensure they are secure: Poor antenna connections can lead to bad audio quality. Inspect the antenna connections and make sure they are tight and secure. Loose or damaged connections can interfere with signal reception and transmission. Replacing or tightening the connections can often resolve audio issues.

Test with an external speaker or headphones to isolate the problem: Sometimes, the issue might be with the internal speaker. Connect an external speaker or headphones to the radio. If the audio quality improves, the internal speaker might be faulty. Using an external speaker or headphones can be a quick fix until you can repair or replace the internal speaker.

Frequency Drift

Frequency drift can disrupt your communication. Here are steps to address this problem:

Use the device in a stable temperature environment: Temperature changes can cause frequency drift. Try to use your Yaesu FT-891 in an environment with a stable temperature. Avoid placing the radio near heat sources or in direct sunlight. A consistent temperature helps maintain frequency stability.

Check for firmware updates and install the latest version: Firmware updates often include fixes for common problems, including frequency drift. Check the Yaesu website for any available firmware updates for the FT-891. Download and install the latest version. Keeping the firmware up to date can resolve many operational issues.

Contact Yaesu support for potential internal repairs: If the frequency drift persists, there might be an internal component issue. Contact Yaesu support for assistance. They can provide guidance on potential repairs or service options. Professional help can ensure that the problem is correctly diagnosed and fixed.

Software and Firmware Glitches

Software and firmware glitches can disrupt the operation of your Yaesu FT-891. Here are steps to resolve these issues:

Perform a factory reset to clear any corrupted settings: Sometimes, corrupted settings can cause glitches. Performing a factory reset will restore the radio to its original settings, clearing any corrupted data. This can often resolve software-related issues and restore normal operation.

Download and install the latest firmware updates from Yaesu: Firmware updates often include fixes for known bugs and glitches. Visit the Yaesu website and download the latest firmware update for the FT-891. Follow the instructions to install the update on your radio. Keeping the firmware up to date ensures that your radio is running the latest software with all known issues resolved.

Backup settings and perform regular updates: It’s essential to back up your radio settings regularly. This ensures that you can restore your preferred settings after performing a factory reset or firmware update. Additionally, make it a habit to check for firmware updates regularly and install them as soon as they become available. Regular updates help keep your radio running smoothly and prevent future glitches.

Antenna Connection Issues

Issues with antenna connections can affect the performance of your Yaesu FT-891. Here’s how to address these problems:

Inspect and secure all antenna connections: Begin by inspecting all antenna connections on the radio. Make sure they are tight and secure. Loose connections can lead to poor signal reception and transmission. Tighten any loose connections to ensure a reliable connection.

Ensure the antenna is properly set up and matched to the device: The antenna setup plays a crucial role in the performance of your radio. Ensure that the antenna is installed correctly and positioned for optimal signal reception. Additionally, make sure that the antenna is matched to the frequency range supported by the FT-891. Using an improperly matched antenna can lead to poor performance.

Test with a different antenna to rule out antenna issues: If you’re still experiencing antenna-related problems, try using a different antenna with your radio. This helps determine whether the issue lies with the antenna itself or with the radio. If the problem persists with a different antenna, there may be an issue with the radio’s internal antenna tuner or other components.

Read More: Yaesu Ft-710 Problems and Possible Fixes


Addressing the common problems encountered with the Yaesu FT-891 is crucial for maintaining optimal performance. Whether it’s power issues, overheating, audio quality problems, frequency drift, software glitches, or antenna connection issues, there are steps you can take to resolve them.

Regular maintenance, such as checking power connections, ensuring proper ventilation, and inspecting antenna connections, can help prevent these problems from occurring. Additionally, performing firmware updates, factory resets, and backing up settings can help address software and firmware glitches.

By following the outlined fixes and taking proactive measures, you can ensure that your Yaesu FT-891 operates smoothly and reliably for all your communication needs. Remember to stay informed about updates and seek professional assistance if problems persist. With proper care and attention, you can enjoy seamless operation and clear communication with your Yaesu FT-891.

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