Icom IC-910H service manual UT-102 Voice Synthesizer Unit, UT-106 DSP Unit

Models: IC-910H

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UT-102 VOICE SYNTHESIZER UNIT

qRemove the bottom cover as shown in the diagram on p. 3-1.

Remove the UX-910 if you have installed it. (p. 3-1) w Remove the protective paper attached to the bottom of

the UT-102 to expose the adhesive strip.

e Plug UT-102 into J1801 on the MAIN unit as shown in the diagram at right.

r Return the bottom cover to its original position.

UT-102

J1801

MAIN unit

UT-106 DSP UNIT

RECOMMENDATION:

When installing only 1 DSP unit, you can install into either front or rear panel side. However, installing a DSP unit into the front panel side may be easier and also safer.

Installing 1st DSP unit (front panel side)

qRemove the bottom cover as shown in the diagram on p. 3-1.

Remove the UX-910 if you have installed it. (p. 3-1) w Remove the shielding plate.

e Remove the connection cable from J1751 on the MAIN unit. Connect the cable into J1 on the UT-106.

r Plug the connection cable (P1) from the UT-106 to J1751 on the MAIN unit.

t Plug the flat cable into J3 on the UT-106 and to J1771 on the MAIN unit.

Take care of the conductor direction.

Attach the Velcro tape to the UT-106 and PLL unit shielding plate.

yReturn the shielding plate, top cover and bottom cover to their original positions.

Shielding plate

PLL unit

UT-106 J3

J1

P1

 

 

 

 

 

J1751

 

J1771

 

Take care of the

 

MAIN unit

conductor direction.

 

Installing 2nd DSP unit (rear panel side)

qRemove the top and bottom cover as shown in the dia- gram on p. 3-1.

Remove the UX-910 if you have installed it. (p. 3-1) w Remove the shielding plate.

e Remove the connection cable from J1761 on the MAIN unit. Connect the cable into J1 on the UT-106.

The cable between J1221 on the MAIN and J1 on the DSP unit, must be set in the groove of the chassis (see diagram below).

Otherwise, the cable may be damaged when returning the shield plate to its original position.

rPlug the connection cable (P1) from the UT-106 to J1761 on the MAIN unit.

tPlug the flat cable into J3 on the UT-106 and to J1781 on the MAIN unit.

Take care of the conductor direction.

Attach the Velcro tape to the UT-106 and PLL unit shielding plate.

yReturn the shielding plate, top cover and bottom cover to their original positions.

Set cable into the groove.

J1

Shielding plate

PLL unit

J3 J1

UT-106

J1781

P1

J1761

Take care of the conductor direction.

MAIN unit

3 - 3

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Icom IC-910H service manual UT-102 Voice Synthesizer Unit, UT-106 DSP Unit, Installing 1st DSP unit front panel side

IC-910H specifications

The Icom IC-910H is a highly regarded and versatile transceiver that is designed for amateur radio operators who are particularly interested in V/UHF and microwave communications. Known for its exceptional performance, the IC-910H encompasses a suite of features that make it a standout choice for both casual and dedicated hams.

One of the main features of the IC-910H is its dual-band capability, allowing for simultaneous operation on both 144 MHz (2 meters) and 430 MHz (70 centimeters) bands. This dual operation enables users to engage in various communication modes, including SSB, CW, FM, and digital. Its high frequency stability ensures that users can rely on the transceiver for accurate and consistent transmissions.

The IC-910H is equipped with a high-performance 10 MHz IF filter that improves selectivity and reduces adjacent channel interference. The optional 1.2 GHz module enhances the transceiver’s capabilities, allowing operators to venture into microwave frequencies. This expandability is a significant advantage for users who wish to progress in their amateur radio pursuits.

Another notable aspect of the IC-910H is its large, easy-to-read LCD display, which features various color options for enhanced visibility. The front panel layout is user-friendly, providing quick access to important controls and functions. The built-in DSP (Digital Signal Processing) technology offers noise reduction and filtering capabilities, significantly improving overall audio quality and making weak signals more intelligible.

The transceiver also includes extensive memory functions, with up to 1,000 memory channels available for storing frequencies, modes, and operational settings. Additionally, it supports CTCSS and DCS tones, which facilitate the use of repeater systems and private group communications.

In terms of build quality, the IC-910H features a robust construction designed for durability and long-term use. Its efficient power supply management ensures excellent performance while minimizing heat generation, making it suitable for extended operating sessions.

Overall, the Icom IC-910H is a powerful and feature-rich transceiver that is favored by many amateur radio enthusiasts. With its versatile operating modes, advanced filtering capabilities, and clear display, it stands out as a reliable tool for both casual operators and serious DXers. Its well-thought-out design and comprehensive features make it a valuable addition to any ham's station collection.