icom ic-735 problems

Icom IC-735 Problems and Their Solutions

The Icom IC-735 is a popular amateur radio transceiver known for its reliability and performance. Designed to provide amateur radio enthusiasts with a range of features and capabilities, the IC-735 has earned a reputation for its versatility and ease of use.

Understanding common problems that users may encounter with the Icom IC-735 is crucial for maximizing its effectiveness and longevity. Whether you’re a seasoned operator or new to the world of amateur radio, being aware of potential issues and their solutions can help ensure smooth operation and minimize downtime.

In this article, we’ll explore some of the most common problems faced by Icom IC-735 users and provide practical solutions to address them. From audio output issues to power supply concerns, we’ll cover a range of troubleshooting tips to help you keep your IC-735 performing at its best. So, let’s dive in and explore how to overcome common challenges with the Icom IC-735.

Low or No Audio Output

Description of the issue

One of the most frustrating problems that users of the Icom IC-735 may encounter is low or no audio output. This means you can’t hear any sound or the sound is very faint, making it difficult to communicate effectively. It’s like trying to listen to a whisper in a noisy room!

Possible causes

There are a few reasons why this issue might occur. It could be due to incorrect volume settings, where the volume is turned down too low or muted altogether. Another possible cause is loose or faulty speaker connections, which can prevent sound from reaching your ears.

Step-by-step guide to troubleshoot and resolve the problem

  1. Check the volume settings: First, make sure the volume knob on your Icom IC-735 is turned up to a suitable level. You can also try adjusting the volume settings in the menu to ensure they’re not set too low.
  2. Inspect speaker connections: Next, take a look at the cables connecting your speakers to the transceiver. Make sure they’re securely plugged in and not damaged. If you’re using external speakers, try connecting headphones directly to the transceiver to see if you can hear any sound.
  3. Test with different audio sources: If you’re still not getting any audio output, try connecting a different audio source, such as a CD player or MP3 player, to the transceiver. This will help determine if the issue is with the IC-735 or the speakers themselves.
  4. Check for internal faults: If none of the above steps solve the problem, there may be an internal fault with your IC-735. In this case, it’s best to contact a qualified technician or the manufacturer for further assistance.

Read More: What Do Ham Radio People Talk About on Ham Radio?

Frequency Drift

Explanation of frequency drift and its impact

Frequency drift is when the transmitted or received frequency of your Icom IC-735 starts to change without you wanting it to. It’s like trying to stay on a straight road, but your car keeps drifting to the side. This can make it hard to communicate with other radio operators and may even cause interference with nearby frequencies.

Factors contributing to frequency drift (e.g., temperature changes)

One of the main factors that can cause frequency drift in your IC-735 is changes in temperature. Just like how your body feels warmer or cooler depending on the weather, electronic components inside the transceiver can expand or contract with temperature changes, affecting the frequency stability.

Tips to minimize frequency drift and maintain stability

To help keep your IC-735 on the right frequency track, here are some handy tips:

  • Keep it cool: Try to operate your transceiver in a stable temperature environment. Avoid placing it in direct sunlight or near heat sources, as this can cause temperature fluctuations.
  • Warm-up time: Give your IC-735 some time to warm up before you start using it, especially if it’s been sitting unused for a while. This allows the internal components to reach a stable operating temperature.
  • Calibration: Periodically calibrate your transceiver to ensure that it’s accurately tuned to the correct frequency. This can help compensate for any drift that may occur over time.
  • Use an external frequency reference: Consider using an external frequency reference, such as a GPS-disciplined oscillator, to provide a stable and accurate reference signal for your IC-735.

Read More: Is a Ham Radio Revival Taking Place?

Display Malfunctions

Signs of display issues (e.g., flickering, blank screen)

You might notice some signs that something’s not right with the display of your Icom IC-735. Maybe it flickers like a light bulb about to go out, or worse, it’s completely blank like a dark night sky with no stars. These are clear indications that there’s a problem with the display.

Potential reasons behind display malfunctions (e.g., loose connections, internal faults)

There could be a couple of reasons why your IC-735’s display is acting up. It might be something as simple as a loose connection, where the cables connecting the display to the rest of the transceiver aren’t plugged in properly. Or, it could be more serious, like an internal fault within the display itself.

How to troubleshoot and repair display problems effectively

To get your display back up and running smoothly, here’s what you can do:

  1. Check connections: First things first, make sure all the cables connecting the display are snug and secure. Sometimes, a simple jiggle might be all it takes to fix the problem.
  2. Inspect for damage: Take a close look at the display for any signs of physical damage, like cracks or scratches. If you spot anything suspicious, it might be time to replace the display altogether.
  3. Reset the transceiver: Sometimes, a good old-fashioned reset can work wonders. Try turning off your IC-735, unplugging it from the power source, and leaving it for a few minutes before plugging it back in and turning it on again.
  4. Seek professional help: If none of the above steps solve the issue, it’s best to leave it to the experts. Contact the manufacturer or a qualified technician to diagnose and repair any internal faults with the display.

Read More: What Happens If You Operate a Ham Radio Without a License?

Transmitting and Receiving Problems

Overview of common issues with transmitting and receiving signals

When it comes to using your Icom IC-735, there are times when you might run into problems with transmitting and receiving signals. It’s like trying to have a conversation on a bad phone line – frustrating and unclear. Common issues include not being able to hear other operators clearly, or they can’t hear you at all.

Possible causes (e.g., antenna problems, microphone settings)

There could be a few reasons why you’re having trouble with transmitting and receiving signals on your IC-735. It might be something as simple as an issue with your antenna, where it’s not properly connected or positioned. Or, it could be related to your microphone settings, like the volume being too low or the wrong microphone being selected.

Step-by-step instructions to diagnose and fix transmission and reception issues

To get your IC-735 back in action, here’s what you can do:

  1. Check the antenna: Make sure your antenna is securely connected to the transceiver and positioned correctly. You want it to be as high and clear of obstructions as possible for the best signal.
  2. Inspect microphone settings: Take a look at your microphone settings and make sure everything is set up correctly. Adjust the volume if needed, and ensure you’re using the right microphone for your setup.
  3. Test with different frequencies: If you’re still having trouble, try tuning into different frequencies to see if the issue persists. This can help narrow down whether the problem is with a specific frequency range or if it’s more widespread.
  4. Check for interference: Look for any sources of interference near your transceiver, like electronic devices or power lines. Try moving your IC-735 to a different location to see if the problem improves.
  5. Seek professional assistance: If you’ve tried everything and still can’t resolve the issue, it might be time to reach out to a professional. Contact the manufacturer or a qualified technician for further assistance.

Read More: How Far Can You Communicate with a Ham Radio?

Power Supply Concerns

Discussion on power-related issues (e.g., intermittent power, voltage fluctuations)

When it comes to powering your Icom IC-735, you might encounter some issues along the way. These could include problems like intermittent power, where the transceiver turns on and off unexpectedly, or voltage fluctuations, which can cause instability in your IC-735’s performance.

Causes of power supply problems (e.g., faulty cables, inadequate power source)

There are a few reasons why you might be experiencing power supply problems with your IC-735. It could be something as simple as a faulty cable, where the connection between your transceiver and the power source isn’t secure. Alternatively, it could be due to an inadequate power source, like trying to power your IC-735 with a battery that’s running low on juice.

Solutions to ensure stable power supply for the Icom IC-735

To ensure a steady flow of power to your IC-735, here are some solutions to consider:

  1. Check the cables: Make sure all the cables connecting your transceiver to the power source are in good condition and securely plugged in. If you spot any frayed wires or loose connections, replace them as needed.
  2. Use a dedicated power supply: Consider using a dedicated power supply designed specifically for your IC-735. This can help ensure a stable and reliable source of power, minimizing the risk of voltage fluctuations and other power-related issues.
  3. Monitor voltage levels: Keep an eye on the voltage levels being supplied to your IC-735. If you notice any significant fluctuations, investigate the cause and address it promptly to avoid potential damage to your transceiver.
  4. Invest in surge protection: Consider investing in surge protection devices to safeguard your IC-735 against sudden spikes in voltage. This can help protect your transceiver from damage caused by power surges during electrical storms or other unforeseen events.

Read More: What Is the Difference Between Amateur (Ham) Radio and CB Radio?


In conclusion, understanding the common problems faced by users of the Icom IC-735 is essential for maintaining smooth operation and maximizing your amateur radio experience. From issues with audio output to display malfunctions, and from frequency drift to power supply concerns, there are various challenges that users may encounter.

By following the troubleshooting tips and solutions provided in this article, you can effectively address these problems and keep your IC-735 performing at its best. Whether it’s checking connections, adjusting settings, or seeking professional assistance when needed, taking proactive steps to address issues as they arise will ensure clear and reliable communication with fellow radio enthusiasts.

Don’t let technical difficulties dampen your passion for amateur radio. With a little know-how and patience, you can overcome any challenges and continue enjoying the exciting world of amateur radio with your Icom IC-735.

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *