Icom IC-290H/D 144MHz All Mode Transceiver

Key Features and Specifications

The IC-290H/D is a microcomputer-controlled transceiver offering versatile operation across FM, USB, LSB, and CW modes within the 144-146 MHz frequency range (or 143.8-148.2 MHz for the IC-290H model). It boasts features such as dual VFOs, multi-purpose scanning, and a continuous tuning system with a 5-digit LED display for precise frequency readout. The transceiver is designed for both mobile and fixed-station use, emphasizing ease of operation and reliable performance.

Installation and Power Requirements

The manual outlines the unpacking process and provides guidance on the proper installation of the transceiver, including mounting options and necessary accessories. It details the power requirements, emphasizing the need for a stable 13.8V DC negative ground power source and cautioning against voltage fluctuations. Antenna connection and selection are also discussed, recommending a high-quality, 50-ohm gain antenna for optimal performance.

Operational Controls and Functions

A comprehensive overview of the front and rear panel controls is provided. This includes explanations for the mode switch, tuning control knob, VFO switch, memory channel operations, scanning functions, and various other switches like AGC, Noise Blanker, and Priority. The manual also details the function of indicators such as Receive, Transmit, Duplex, and S/RF indicators.

Troubleshooting and Diagrams

The document includes sections dedicated to troubleshooting common issues, block diagrams, and circuit descriptions to aid users in understanding the internal workings of the transceiver. It also lists available options for enhancing the unit's capabilities.

For detailed technical specifications and operational procedures, please refer to the full manual.