Icom IC-7300 HF Plus - User Manual

Questions and Answers

M
mooremeredithSep 2, 2025
Why can't I contact another station with my Icom Transceiver?
- V
  Vanessa MillerSep 2, 2025
  If you cannot contact another station with your Icom Transceiver, even though receiving and transmitting appear successful, the Split function may be activated, causing transmit and receive frequencies to differ. Push the SPLIT button to turn OFF this function. Alternatively, the RIT function or the ?TX function might be ON, also setting different receive or transmit frequencies; push RIT or TX to turn OFF these functions.
R
ryansimsAug 31, 2025
How to fix an Icom Transceiver that does not power on?
- H
  Heather ShortAug 31, 2025
  If your Icom Transceiver isn't powering on when you push the POWER button, start by checking the DC power cable to ensure it's properly connected. Confirm that the external power supply is turned ON. Finally, inspect the DC power cable fuses or circuitry fuse for any blown fuses, identify and fix the cause, and replace the damaged fuse with a new one.
J
jacob49Aug 29, 2025
Why does my Icom Transceiver automatically transmit while receiving?
- I
  ian64Aug 29, 2025
  If your Icom Transceiver automatically switches to transmit while receiving, it's likely due to the VOX function being enabled. Push the VOX/BK-IN button to turn OFF the VOX function. If the issue persists, the VOX gain might be set too high, so adjust the VOX gain accordingly.
A
Amanda BrownAug 27, 2025
How to improve the sensitivity of my Icom Transceiver?
- N
  Nicole HutchinsonAug 28, 2025
  If your Icom Transceiver's sensitivity is too low, and you can only hear strong signals, there are a few things to check. First, make sure the attenuator is turned OFF in the FUNCTION screen. Also, ensure the squelch is open by rotating the AF RF/SQL (outer) to the 12 o’clock position. Check your antenna for defects or shorts/cuts in the coaxial cable connector, and repair/reconnect as needed. Verify that you're using an antenna suitable for the selected band, and if not, connect an appropriate antenna. Finally, you can try holding down the TUNER button to tune the antenna.
C
cstaffordAug 27, 2025
Why is there no sound coming from the speaker of my Icom Transceiver?
- K
  Kelly DuncanAug 27, 2025
  If you're not hearing any sound from the speaker of your Icom Transceiver, there are several possible causes. First, check the audio level and rotate the AF RF/SQL (inner) clockwise to increase it to a suitable listening level. Also, ensure that the squelch is open by rotating AF RF/SQL (outer) to the 12 o’clock position. If you are in FM mode, verify that the tone squelch is turned OFF. Make sure that external speakers or headphones are not connected to the [PHONES] jack. Finally, inspect the external speaker cable for any cuts and repair if necessary.
K
Kristen ReillyAug 25, 2025
Why is there no power output or low output power on my Icom Transceiver?
- D
  Diana RayAug 25, 2025
  If you're experiencing no power output or low output power with your Icom Transceiver, several factors could be at play. First, ensure that the operating frequency is within a ham band. If it is, check that the modulation input signal level isn't set too low by adjusting the microphone gain in the Multi-function menu. You may want to check your microphone, by attempting to transmit in FM, CW, or RTTY mode to see if the problem lies with the microphone or the transceiver itself. High antenna SWR (more than 3:1) can also cause this issue, so adjust the antenna for an SWR of less than 3:1. If the antenna is not properly tuned, hold down the TUNER button for 1 second to tune it. Finally, verify that the TX power isn't set too low by adjusting the RF POWER in the Multi-function menu.
A
Annette EverettAug 22, 2025
What to do if my Icom Transceiver displays “OVF”?
- D
  dustin82Aug 22, 2025
  If your Icom Transceiver displays “OVF,” it means an excessively strong signal is being received. Try rotating the AF RF/SQL (outer) dial counter-clockwise. If this doesn't help, turn ON the attenuator.

Summary

Panel Description

Front Panel Overview

Overview of the front panel layout, including keys, controls, and indicators.

Rear Panel Overview

Overview of the rear panel layout, detailing connectors and ports.

Touch Screen Interface

Explanation of icons, displays, and touch operations on the main screen.

On-Screen Keyboard Usage

Instructions for using the on-screen keyboard for data entry and editing.

Installation and Connections

Installation Location and Environment

Guidelines for selecting a suitable location and managing heat dissipation and grounding.

Front Panel Connections

Connecting microphones and headphones to front panel jacks.

Rear Panel Connections Overview

Overview of all available jacks and ports on the rear panel.

Connecting Power and Antenna Tuner

Procedures for connecting the DC power supply and antenna tuner.

Digital Mode Connections

Connecting for FSK and AFSK digital modes via USB or ACC socket.

Linear Amplifier Connections

Procedures for connecting IC-PW1/IC-PW1EURO and non-Icom linear amplifiers.

Basic Operation

Initial Power-Up and Controls

Steps for initial power-up, turning on/off, and adjusting volume.

VFO and Memory Modes Explained

Explanation of VFO and Memory modes and their basic usage.

Frequency Setting Methods

Various methods for setting the operating frequency using the Main Dial or keypad.

RF Gain, Squelch, and Dial Lock

Adjusting RF gain, squelch level, and enabling the dial lock function.

Basic Transmission Procedures

Steps for basic transmission and adjusting output power.

Meter Display and Microphone Gain

How to use the meter display and adjust microphone gain.

5 MHz Band Operation Rules (USA)

Specific rules and frequencies for 5 MHz band operation in the USA.

Receiving and Transmitting

Receiving Signal Enhancement

Overview of features for improving weak signal reception and noise reduction.

Transmitting Features for Clearer Audio

Overview of features enhancing transmission audio quality and ease of use.

Receiver Adjustments: Preamplifier, Attenuator, RIT

Using preamplifiers, attenuator, and the RIT function for optimal reception.

AGC and Twin PBT Controls

Managing Automatic Gain Control and Passband Tuning for signal clarity.

IF Filter Selection and Shaping

Choosing IF filter bandwidths and shapes for noise reduction.

Noise Blanker and Noise Reduction

Utilizing noise blanker and noise reduction features to reduce interference.

Notch Filter and VOX Functionality

Using notch filters and configuring VOX for hands-free operation.

∂TX Function and Monitor

Shifting transmit frequency and monitoring transmit audio.

Split Frequency and Lock Operations

Using split frequency modes and the split lock function.

CW Mode Operations

Covers CW pitch, key speed, break-in, and electronic keyer functions.

RTTY (FSK) Mode Operations

Basic RTTY operations, including reverse mode and twin peak filter.

FM Repeater and Tone Squelch

Using FM repeaters and setting tone squelch for selective communication.

Data Mode (AFSK) Operation

How to operate data modes using AFSK.

Scope Operation

Spectrum Scope Usage

How to use the spectrum scope, including modes, touch operations, and adjustments.

Spectrum Scope Settings

Configuring scope display parameters like waveform type, color, and edge frequencies.

Audio Scope Display and Settings

Using and configuring the audio scope for signal analysis.

Voice Recorder Functions

QSO Audio Recording Methods

Quick and basic recording of transmit and receive audio.

Playback Operations and Navigation

How to playback, fast forward, rewind, and navigate recorded audio files.

File and Folder Management

Procedures for checking file/folder information and deleting files or folders.

SD Card Information and PC Playback

Displaying SD card status and playing recorded files on a PC.

Recorder and Player Settings

Configuring recorder settings and player playback options.

Voice TX Memory Operation

Voice TX Memory Recording and Playback

Recording and playing back voice messages for transmission.

Entering a Recording Name

Assigning names to Voice TX memories.

Voice TX Memory Transmission

How to transmit recorded voice messages once or repeatedly.

Adjusting Output Level and TX Settings

Adjusting transmit voice level and configuring TX memory settings.

Using an SD Card

SD Card Overview and Basic Operations

General information about SD cards and procedures for insertion/removal.

SD Card Management: Unmounting and Formatting

Safely unmounting and formatting the SD card for transceiver use.

Saving and Loading Transceiver Settings

Saving settings to and loading settings from the SD card.

SD Card Data Backup and File Deletion

Procedures for backing up SD card data to a PC and deleting data files.

Memory Operation

Memory Channel Overview and Selection

Understanding memory channels and methods for selecting them.

Entering Memory Channel Contents

How to save data into memory and copy it to other locations.

Clearing Memory Channels and Names

Procedures for clearing memory channel data and entering memory names.

Memo Pad Functionality

Using Memo Pads for temporary storage and quick recall of frequencies and modes.

Scans

Scan Types and Preparation

Overview of scan types and setting squelch status.

Scan Set Mode Configuration

Setting scan speed and resume functions.

Programmed and Fine Programmed Scans

Performing scans between preset frequencies in VFO mode.

Memory Scan Operations

Performing memory scans through all or selected memory channels.

∂F Scan Operations

Performing scans within a specified frequency span.

Tone Scan Operation

Scanning for repeater tone frequencies.

Antenna Tuner Operation

Internal Antenna Tuner Operation

How to operate and tune the built-in automatic antenna tuner.

External Antenna Tuner Usage

Guidelines for connecting and using optional external antenna tuners.

Emergency Tuner Mode

Using the internal tuner in emergency situations with power limits.

Set Mode

Set Mode Navigation and Overview

How to enter and navigate the transceiver's Set mode menus.

Tone Control and Bandwidth Settings

Adjusting audio tone and transmission bandwidth for various modes.

Function Settings: Beep, Split, and VOX

Configuring beep levels, split functions, and VOX settings.

Function Settings: Filters and Modes

Adjusting notch filters, RTTY settings, and speech functions.

Connector Settings: Audio and Output

Configuring audio output settings for ACC, USB, and IF signals.

Connector Settings: Data and External Control

Configuring data modes, external keypads, and CI-V settings.

Display Settings: Brightness, Type, and Font

Customizing LCD backlight, background type, and font styles.

Display Settings: Screen Saver and Messages

Configuring screen saver, opening messages, and call sign display.

Time and SD Card Management

Setting date/time and managing SD card operations like loading and saving.

Other Settings: Calibration and Resets

Adjusting touch screen, checking version, and performing resets.

Other Functions

Main Dial Friction and Speech Function

Adjusting Main Dial friction and using the speech synthesizer.

SWR Measurement Techniques

How to measure SWR using spot and plot methods for antenna tuning.

Display Customization: Type and Font

Changing the display background and frequency readout font.

Protection Function and REF Adjustment

Understanding protection mechanisms and performing frequency calibration.

Call Sign Display and Screen Capture

Setting a call sign and using the screen capture function.

Maintenance

Cleaning and Fuse Replacement

Guidelines for cleaning the transceiver and replacing fuses.

Touch Screen Calibration

Correcting touch screen sensitivity and accuracy.

System Reset Options

How to perform partial or full resets to restore default settings.

Troubleshooting Common Issues

A guide to resolving common equipment problems and their solutions.

Updating the Firmware

Firmware Update Overview and Preparation

Information on updating firmware, adding features, and preparing files.

Firmware Update Procedure

Step-by-step instructions for updating the transceiver's firmware using an SD card.

Specifications

General Specifications

General specifications including frequency coverage, power, and operating conditions.

Transmitter Specifications

Transmitter performance details like output power and emissions.

Receiver Specifications

Receiver performance details including sensitivity and selectivity.

Antenna Tuner Specifications

Specifications related to the antenna tuner's performance.

Options

Available Transceiver Options

List of optional accessories for the transceiver like amplifiers and microphones.

Mounting and Attaching Accessories

Instructions for mounting brackets and attaching carrying handles.

Connector Information

ACC Socket Pin Assignments

Detailed pin configuration and specifications for the ACC socket.

Microphone Connector and Keypad

Information on the microphone connector and using external keypads.

Other Connector Details

Information on KEY, EXT-SP, REMOTE, ALC, SEND, PHONES, and DC power connectors.

Control Command

CI-V Remote Control Overview

Information on controlling the transceiver via PC using CI-V interface.

CI-V Connection and Preparation

Methods for connecting a PC and initial setup for CI-V control.

CI-V Command Data Formats

Understanding the data structures and formats used in CI-V commands.

CI-V Command Reference Table

A comprehensive list of CI-V commands for controlling transceiver functions.

Icom IC-7300 HF Plus Specifications

General

Type	HF/50 MHz Transceiver
Modes	SSB, CW, RTTY, AM, FM
Receiver Type	Direct Sampling
Antenna Connector	SO-239
Antenna Impedance	50 ohms
Power Supply	13.8V DC ±15%
Frequency Coverage	0.030-74.800 MHz
RF Output Power	100 W
Receiver Sensitivity	0.15 μV (typical)
Receiver Selectivity	SSB: 2.4 kHz, CW: 500 Hz
Image Rejection Ratio	70 dB
IF Rejection Ratio	70 dB (HF bands), 60 dB (50 MHz band)
Audio Output Power	2.5 W (at 10% distortion)
Display	4.3-inch color TFT touch screen
Dimensions	240 x 94 x 238 mm
Number of Channels	101 (99 regular, 2 scan edge)
Current Consumption	21A (maximum transmission)