Icom IC-726 Instruction Manual

Pages 40

Year 1990

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of 40

Icom IC-726 Transceiver Specification

The Icom IC-726 is a versatile HF/VHF transceiver designed to deliver reliable performance for amateur radio enthusiasts. It operates across a frequency range from 1.8 to 54 MHz, covering the HF bands and the 6-meter band, providing flexibility for various communication needs. The transceiver supports all standard amateur radio modes including SSB, CW, AM, and FM, ensuring comprehensive mode compatibility.

Equipped with a power output of up to 100 watts on HF and 10 watts on VHF, the IC-726 ensures robust transmission capabilities. The receiver section features a triple conversion superheterodyne architecture, enhancing sensitivity and selectivity for clear signal reception. An automatic antenna tuner is integrated, allowing for efficient tuning and optimal transmission across different frequencies.

The IC-726 includes a digital signal processing (DSP) unit that offers noise reduction and automatic notch filtering, contributing to improved audio quality and reduced interference. The unit features a large, intuitive LCD display for easy frequency and mode adjustments, alongside a user-friendly interface designed for seamless operation. Its memory channels facilitate quick access to preferred frequencies, enhancing user convenience.

The transceiver is engineered with a rugged construction to withstand demanding operating conditions, making it suitable for both stationary and portable use. Connectivity options include a variety of input and output ports to support external devices and accessories, expanding its functionality. The Icom IC-726 continues to be a respected choice among amateur radio operators, valued for its performance, durability, and comprehensive feature set.

Icom IC-726 Transceiver F.A.Q.

How do I perform a factory reset on the Icom IC-726 transceiver?

To perform a factory reset on the Icom IC-726, turn off the transceiver, then hold down the [SET] button while turning the power back on. This will reset the settings to factory defaults.

How can I improve the audio quality on my IC-726?

To improve audio quality, ensure that your microphone gain is set correctly. Adjust the RF gain and squelch for optimum performance. Additionally, check your antenna connections and use an external speaker if necessary.

What should I do if the IC-726 is not powering on?

If the IC-726 does not power on, check the fuse in the power cable, ensure that the power supply is working correctly, and inspect all connections for any loose or damaged wires.

How can I reduce RF interference on the IC-726?

To reduce RF interference, use high-quality coaxial cables, ensure proper grounding, and consider installing a low-pass filter. Adjust the RF gain and squelch settings as needed.

What are the recommended maintenance practices for the Icom IC-726?

Regularly clean the exterior with a soft, dry cloth, check antenna connections, and ensure proper ventilation to prevent overheating. Periodically check the power supply and cables for wear and tear.

How do I program frequencies into the memory channels of the IC-726?

To program frequencies, press [VFO/M] to select VFO mode. Tune to the desired frequency, press and hold [MEMO] until a beep sounds, then choose a memory channel using the main dial and press [MEMO] again to save.

What is the procedure to adjust the SSB transmit bandwidth on the IC-726?

To adjust the SSB transmit bandwidth, enter the set mode by pressing [SET], navigate to the SSB bandwidth settings, and use the main dial to select the desired bandwidth between 2.4 kHz and 2.8 kHz.

How can I troubleshoot a weak signal reception issue on the IC-726?

Check if the RF gain is set too low, ensure the antenna is properly connected and not damaged, and verify that the squelch is not set too high. Also, try switching to a different antenna if possible.

How do I update the firmware of my Icom IC-726?

The Icom IC-726 does not support firmware updates as it is an older model. Consult your manual for more information on maintaining the device.

What should I check if there is no audio output from the speaker on my IC-726?

Ensure the volume is turned up, check for any headphones plugged in, inspect the speaker connections, and ensure the squelch is not set too high. If the problem persists, test with an external speaker.