Showing posts with label D-star. Show all posts
Showing posts with label D-star. Show all posts

Friday, August 28, 2026

Icom IC-9700 VHF/UHF/1.2 GHz D-STAR Base Station Transceiver Review


The Icom IC-9700 has earned a reputation as one of the most capable dedicated VHF and UHF amateur radio transceivers available to serious operators. Rather than being simply another FM base station, the IC-9700 is an all-mode, tri-band SDR transceiver designed to cover a remarkable range of amateur radio activities.

It covers the 2-meter, 70-centimeter, and 23-centimeter bands and supports SSB, CW, AM, FM, RTTY, D-STAR DV, and D-STAR DD. It also includes sophisticated satellite operating capabilities, a real-time spectrum scope, waterfall display, dual-watch operation, full-duplex satellite operation, LAN connectivity, USB connectivity, and an impressive touchscreen interface.

For an operator interested in weak-signal VHF and UHF, amateur satellites, meteor scatter, moonbounce, contesting, D-STAR, digital communications, or simply having an extremely capable VHF/UHF station, the IC-9700 deserves serious consideration.

Overview

The IC-9700 occupies an interesting position in the amateur radio market. Most modern HF transceivers include VHF and UHF capabilities, but those radios generally do not provide the same depth of functionality on the higher-frequency bands.

The IC-9700 was designed specifically around VHF, UHF, and 23 cm operation.

The U.S. version covers 144-148 MHz, 430-450 MHz, and 1240-1300 MHz. It supports 100 watts on 2 meters, 75 watts on 70 centimeters, and 10 watts on 23 centimeters for SSB, CW, FM, RTTY, DV, and DD operation.

That power arrangement makes considerable sense for the intended applications. Two meters and 70 centimeters are commonly used for terrestrial weak-signal work, contesting, repeater operation, satellite communication, and other activities where additional transmitter power can be useful.

The 23 cm band is a different story. Ten watts is a respectable amount of power from a compact transceiver at 1.2 GHz, and the IC-9700 provides a convenient way to get into 23 cm without requiring a separate transceiver.

Design and Build Quality

The IC-9700 has the familiar appearance of a modern Icom desktop transceiver.

The front panel is dominated by a 4.3-inch color touchscreen. Around the display are physical controls and buttons that provide direct access to many frequently used functions. A large tuning knob occupies the right side of the radio.

The overall design will be immediately familiar to anyone who has operated an Icom IC-7300 or other recent Icom SDR.

The radio measures approximately 9.4 inches wide, 3.7 inches high, and 9.4 inches deep, with a weight of approximately 10.4 pounds. It requires a 13.8-volt DC power source and can draw substantial current when transmitting at full power.

This is definitely a desktop base-station radio rather than a handheld or lightweight portable rig.

The construction feels appropriate for a serious station. The controls are substantial, the display is easy to see, and the combination of touchscreen and physical controls works particularly well during normal operation.

The SDR Architecture

One of the most important features of the IC-9700 is its SDR architecture.

The radio uses RF direct sampling on 144 and 430/440 MHz. On 1200 MHz, Icom uses a down-conversion IF sampling architecture.

That distinction is important because the IC-9700 isn't simply an old-style VHF/UHF superheterodyne transceiver with a modern display attached.

Digital signal processing plays a major role throughout the receiver and transmitter.

The result is a radio capable of providing excellent filtering, spectrum visualization, noise reduction, signal management, and other digital functions.

For operators who have become accustomed to the flexibility of modern SDR HF transceivers, the IC-9700 brings much of that experience to VHF and UHF.

The Spectrum Scope and Waterfall

One of the first features many operators notice is the spectrum scope.

The scope provides a visual representation of activity around the operating frequency. Instead of tuning blindly across the band looking for signals, the operator can see signals appearing on the display.

The waterfall adds another dimension by showing activity over time.

This can be extremely useful during contests or weak-signal operating.

For example, an operator monitoring a portion of the 2-meter SSB band can watch the waterfall for signals that might otherwise be difficult to locate by tuning alone.

The scope can also be useful when searching for satellite signals, monitoring repeater activity, or looking for weak stations.

For weak-signal enthusiasts, this feature alone can make the IC-9700 feel dramatically more modern than older VHF/UHF multimode radios.

The Receiver

The receiver is arguably one of the strongest reasons to purchase an IC-9700.

VHF and UHF operators often deal with very different conditions from HF operators. A weak signal may be only a few kilohertz away from a very strong signal. Contest locations can contain large numbers of transmitters operating simultaneously. Satellites can present rapidly changing signal levels.

A receiver needs more than simply good sensitivity.

It also needs selectivity and dynamic range.

The IC-9700 has demonstrated strong performance in these areas. The ARRL product review specifically highlighted its ability to receive weak signals while maintaining good dynamic-range performance.

That makes the radio particularly interesting for serious VHF and UHF operators.

Weak-Signal VHF Operation

The IC-9700 is an excellent match for operators interested in 2-meter SSB.

While FM dominates casual 2-meter operation, SSB opens an entirely different side of amateur radio.

With a suitable directional antenna and favorable conditions, operators can work stations much farther away than they might expect from ordinary FM operation.

The IC-9700 provides the power, filtering, receiver performance, and spectrum display needed for this type of operating.

It is particularly well suited to:

2-meter SSB

2-meter contesting

Weak-signal contacts

Meteor scatter

Tropospheric propagation

EME

Portable hilltop operation

VHF DX

Contest station operation

The 100-watt output on 2 meters is another major advantage.

For operators coming from a typical 50-watt VHF transceiver, the additional output can provide a useful increase in signal strength, although antenna height, antenna gain, feed-line quality, and propagation remain extremely important.

70-Centimeter Operation

The 70-centimeter band receives the same attention from the IC-9700.

The radio provides up to 75 watts on 70 centimeters for most major operating modes.

That makes it useful for both local and long-distance UHF work.

70 centimeters is particularly interesting for operators who enjoy weak-signal work because the band can support serious DX under favorable propagation conditions.

The IC-9700 also makes an excellent satellite radio because many amateur satellites use combinations of 2 meters and 70 centimeters.

23-Centimeter Operation

The inclusion of 23 cm is one of the features that really separates the IC-9700 from many competing amateur radios.

The 23-centimeter amateur band is 1240-1300 MHz in the U.S. version, and the IC-9700 provides up to 10 watts of output on the band.

23 cm is a fascinating part of amateur radio.

It offers opportunities for:

Weak-signal contacts

Point-to-point communication

Satellite work

Moonbounce

Digital experimentation

High-gain antenna experiments

Microwave-oriented amateur radio projects

The biggest challenge is that 23 cm requires considerably more attention to feed-line loss, antenna construction, connectors, and system design.

At 1.2 GHz, poor-quality coaxial cable can introduce significant losses.

Fortunately, the IC-9700 gives an operator a relatively simple entry point into the band.

Instead of purchasing separate equipment for 23 cm, the operator gets all three bands in one radio.

D-STAR

D-STAR is one of the defining features of the IC-9700.

The radio supports D-STAR Digital Voice as well as Digital Data operation. Icom also includes D-STAR gateway-related functionality that can allow the radio to function in Terminal or Access Point modes under supported configurations.

For operators already involved with D-STAR, this makes the IC-9700 considerably more attractive.

D-STAR can provide clear digital voice communication while also allowing connectivity through D-STAR repeater and gateway systems.

The radio's Digital Voice capabilities also integrate nicely with its other operating functions.

Dual D-STAR Receive

Another particularly interesting feature is dual D-STAR reception.

The IC-9700 can decode two D-STAR voice streams simultaneously under supported dual-receive configurations. Icom lists dual D-STAR receive among the radio's capabilities.

This can be extremely useful for an operator monitoring two digital channels.

For example, one receiver can monitor a local D-STAR repeater while another watches a different frequency.

Satellite Operation

Satellite operation is another area where the IC-9700 stands out.

The radio includes a dedicated satellite mode with extensive memory support. Icom specifies up to 99 satellite memory channels.

The satellite mode is designed to simplify the process of working amateur satellites.

Instead of manually adjusting the uplink and downlink frequencies independently, the radio can coordinate the frequencies as the satellite moves through the pass.

This makes satellite operation considerably easier.

The IC-9700 can also operate in full duplex, allowing the operator to listen to the satellite downlink while transmitting on the uplink.

That is a major advantage for satellite operators.

Being able to hear the downlink while transmitting is extremely useful because the operator can immediately determine whether the signal is making it through.

Satellite enthusiasts should also appreciate the large display and spectrum scope.

The combination makes it much easier to identify activity during a busy satellite pass.

Full-Duplex Operation

Full-duplex operation is one of the IC-9700's particularly important capabilities.

For satellite work, full duplex means the operator can transmit on one frequency while simultaneously receiving the other.

This is especially valuable when working satellites using separate uplink and downlink frequencies.

The IC-9700 can also perform dual-watch functions, although there are limitations regarding which band combinations can be monitored simultaneously. Icom's specifications identify full-duplex operation and dual-watch capabilities among the radio's features.

For serious satellite operators, this capability should be high on the list of features to consider.

Digital Data

The IC-9700 isn't limited to voice communication.

The radio supports D-STAR Digital Data, including DD operation on 23 cm. Icom specifies a 128 kbps data capability for DD mode.

This opens the door to experimentation beyond traditional voice communication.

Digital data operation is particularly interesting for amateur radio operators who enjoy combining radio with computers, networking, and experimentation.

Computer Connectivity

The IC-9700 includes USB and LAN connectivity.

This is increasingly important in modern amateur radio.

A computer can be integrated into the station for logging, digital modes, radio control, firmware management, and other applications.

The LAN connection is particularly useful because it allows the radio to become part of a network-connected station.

Operators interested in remote operation can also take advantage of Icom's broader network and remote-control ecosystem.

The radio's LAN interface and associated software support make it much more suitable for modern station integration than many older VHF/UHF transceivers.

Digital Modes

Although the IC-9700 is heavily associated with D-STAR, operators should not overlook its conventional digital-mode capabilities.

The radio supports RTTY and data operation, while its USB connectivity makes computer-based digital communication much easier to integrate.

Modern software can also be used for modes such as FT8 and other weak-signal digital applications.

This is particularly interesting on 2 meters and 70 centimeters, where digital weak-signal operation can provide an entirely different way of making contacts.

The ability to combine an SDR-based radio with computer software makes the IC-9700 a flexible experimental platform.

Controls and Touchscreen

The 4.3-inch color touchscreen is one of the radio's most noticeable features.

Icom uses an interface similar to the one found on the IC-7300.

For operators already familiar with the IC-7300, the transition to the IC-9700 is relatively straightforward because many controls and menus have a similar philosophy.

The touchscreen doesn't replace all physical controls.

Instead, the radio combines touchscreen menus with dedicated knobs and buttons.

That is an excellent approach for a base station.

Menus can handle advanced functions while frequently used controls remain immediately accessible.

Audio

The built-in audio system is perfectly adequate for normal amateur radio operation.

For serious weak-signal operators, however, headphones or a quality external speaker may be preferable.

Audio quality becomes especially important during long weak-signal sessions.

When listening to a station that is only barely above the noise floor, the ability to customize filtering and audio output can make a significant difference.

The IC-9700 offers extensive receiver filtering and DSP features that help operators tailor the receiver to different modes.

Memory System

The IC-9700 provides extensive memory capabilities.

The U.S. specifications list 297 simplex memory channels, 18 programmable scan-edge channels, six call channels, 99 satellite memories, and a large number of memories associated with the DR function.

That gives operators plenty of room for storing:

Local repeaters

D-STAR repeaters

Simplex frequencies

Contest frequencies

Satellite frequencies

Calling frequencies

Favorite monitoring channels

Digital frequencies

Having a well-organized memory system can make a significant difference in everyday operation.

Antennas and Connections

One of the advantages of the IC-9700 is that it provides separate antenna connections for the three frequency ranges.

The radio uses an SO-239 connector for 144 MHz and Type-N connectors for the 430/440 and 1200 MHz connections.

The use of Type-N connectors for the higher-frequency connections is a sensible design choice.

At 70 centimeters and especially 23 centimeters, connector quality and feed-line construction become increasingly important.

A high-quality radio cannot compensate for a poor antenna system.

An operator buying an IC-9700 should budget for good coaxial cable, appropriate connectors, and a properly designed antenna system.

The Antenna Makes the Station

This point deserves emphasis.

Buying an expensive transceiver does not automatically create an effective VHF/UHF station.

The antenna system may be even more important.

For 2 meters, a good vertical antenna can provide excellent local coverage, while a horizontally polarized directional antenna can be much better for weak-signal SSB.

For 70 centimeters, antenna gain becomes particularly valuable.

For 23 centimeters, feed-line loss and antenna efficiency become even more important.

Operators purchasing the IC-9700 should think about the entire station rather than just the transceiver.

Power Supply Requirements

The IC-9700 operates from a nominal 13.8-volt DC supply.

The U.S. specifications indicate less than 18 amps of transmit consumption at high power.

A quality regulated power supply with sufficient current capacity is therefore essential.

It is not a good idea to pair a high-performance base station with an undersized or poor-quality power supply.

For a permanent shack installation, a reliable 25-amp-class or larger amateur-radio power supply provides reasonable headroom, depending on the rest of the station and operating requirements.

Portable Operation

Although the IC-9700 is clearly designed as a desktop radio, it can be taken into the field.

Its approximately 10.4-pound weight isn't unreasonable for portable contesting or hilltop operations, although it isn't a lightweight backpacking radio.

For VHF and UHF contesters, however, portability can be very useful.

A portable station placed on a hill or other elevated location can dramatically improve VHF/UHF performance.

Pair the IC-9700 with a directional antenna, mast, rotator, battery system, and appropriate feed line, and it can become an extremely capable portable weak-signal station.

Contesting

The IC-9700 is an excellent contest radio.

VHF and UHF contests can be very different from HF contests.

Operators frequently work stations based on distance, grid square, propagation, antenna height, and directional antennas.

The spectrum scope provides an important advantage because the operator can quickly identify activity.

The receiver's ability to handle strong signals is also valuable during contests when multiple stations may be operating nearby.

For a serious VHF/UHF contest station, the IC-9700 is an extremely attractive choice.

EME and Weak-Signal Work

Earth-Moon-Earth, commonly called moonbounce or EME, represents one of the most technically challenging areas of amateur radio.

The goal is to bounce radio signals off the Moon and receive the incredibly weak returning signals.

The IC-9700's combination of receiver performance, SDR technology, spectrum display, filtering, and high-frequency coverage makes it well suited to experimental EME work.

Of course, the radio is only one part of an EME station.

A serious EME installation generally requires high-gain antennas, excellent feed systems, precise frequency control, significant transmit power, and careful station design.

The IC-9700 provides a very capable foundation.

Remote Operation

Another strength of the IC-9700 is its suitability for station automation and remote operation.

The LAN connection allows the radio to communicate with a network, while Icom provides software and documentation supporting computer control and remote operation.

This can be useful for operators who want their radio located in a dedicated shack while controlling it from another computer.

Remote operation can also be attractive for contest stations and home stations where the antenna and radio equipment are located away from the operator's primary workspace.

Firmware

Modern SDR radios are increasingly dependent on firmware.

The IC-9700 is no exception.

Icom has continued to provide firmware updates for the radio, including updates affecting digital-mode operation. Icom's current product information specifically notes improvements for FT8 operation and additional functionality.

This is an important advantage over older radios.

The capability of a modern SDR can improve over time through firmware updates.

Potential Weaknesses

No radio is perfect, and the IC-9700 has some limitations.

First, it is expensive compared with a conventional VHF/UHF FM radio.

If your primary goal is simply talking through local repeaters, buying an IC-9700 may be excessive.

A much less expensive dual-band radio can handle ordinary repeater communication.

The IC-9700 makes sense when you actually intend to use its advanced capabilities.

The second issue is complexity.

There are many functions packed into the radio.

A new operator may initially find the menus overwhelming.

The solution is simply to learn the radio gradually.

Start with FM and basic VFO operation.

Then learn the memory system.

Next learn the spectrum scope.

After that, explore SSB, digital modes, D-STAR, and satellite operation.

The third limitation is 23 cm output power.

Ten watts is respectable, but operators interested in serious 23 cm DX, EME, or other specialized applications may eventually want an external amplifier.

That isn't necessarily a criticism of the radio.

At 1.2 GHz, external amplification and specialized antennas are common parts of advanced stations.

Who Should Buy the IC-9700?

The IC-9700 is particularly well suited to several types of amateur radio operators.

VHF/UHF DXers

If you enjoy chasing distant stations, unusual propagation, and weak-signal contacts, the IC-9700 is an excellent choice.

Satellite Operators

The dedicated satellite features and full-duplex capability make it one of the most appealing choices for serious satellite enthusiasts.

D-STAR Operators

If D-STAR is an important part of your amateur radio activities, the IC-9700 provides an unusually complete base-station platform.

VHF/UHF Contesters

The receiver, spectrum scope, output power, and multi-band capabilities make it extremely attractive for contesting.

Experimenters

The SDR architecture, computer connectivity, digital modes, D-STAR data capabilities, and 23 cm coverage provide a tremendous playground for experimentation.

Established Base Stations

Operators who already have HF equipment and want a dedicated VHF/UHF station will find the IC-9700 particularly appealing.

Who Should Skip It?

If all you want is a basic repeater radio, the IC-9700 is probably more radio than you need.

If you primarily operate FM from your vehicle, a mobile radio is a more appropriate solution.

If you only occasionally use VHF and UHF, spending money on a high-end tri-band SDR may not provide much benefit.

The IC-9700 is best appreciated by operators who actually intend to explore the capabilities it provides.

Final Verdict

The Icom IC-9700 is much more than a high-end VHF/UHF base station.

It is a complete amateur radio platform built around three important bands: 2 meters, 70 centimeters, and 23 centimeters.

Its combination of SDR technology, excellent receiver performance, spectrum scope, waterfall display, touchscreen controls, high power on 2 meters and 70 centimeters, 23 cm operation, D-STAR, digital data, satellite functions, full-duplex capability, USB, LAN connectivity, and computer integration makes it one of the most versatile dedicated VHF/UHF transceivers available.

The radio's greatest strength is its flexibility.

One day it can be used as a traditional 2-meter FM base station.

The next day it can be used for 2-meter SSB weak-signal work.

Another day it can become a satellite station.

It can also be used for D-STAR, digital modes, 70-centimeter DX, 23-centimeter experimentation, contesting, meteor scatter, or even advanced EME projects.

That versatility is what makes the IC-9700 special.

For the casual operator who only needs a repeater radio, the price and complexity are difficult to justify.

For the serious amateur radio operator who wants to explore everything VHF and UHF have to offer, however, the IC-9700 is an outstanding investment.

It is particularly difficult to find another single desktop radio that combines this many VHF, UHF, 23 cm, satellite, SDR, and D-STAR capabilities into one package.

Overall Rating

Build Quality: Excellent

Receiver Performance: Excellent

Transmitter Performance: Excellent

2-Meter Capability: Excellent

70-Centimeter Capability: Excellent

23-Centimeter Capability: Excellent

D-STAR: Excellent

Satellite Operation: Excellent

Weak-Signal Operation: Excellent

Spectrum Scope: Excellent

Computer Connectivity: Excellent

Ease of Use: Very Good

Value for Advanced Operators: Excellent

Value for Casual FM Operators: Fair

Overall: 9.5/10

The Icom IC-9700 is one of those radios that can grow with the operator. You can begin with basic FM operation and gradually discover more advanced features as your interests develop. For anyone serious about VHF, UHF, 23 cm, satellites, weak-signal work, D-STAR, and digital experimentation, the IC-9700 is a radio that can provide years of operating opportunities.

See The Icom IC-9700 On Amazon! 

Friday, March 6, 2026

Icom ID-5100A Deluxe Dual Band Mobile Transceiver Review – A Modern D-STAR Radio with Touchscreen and GPS


The Icom ID-5100A Deluxe is a powerful and feature-rich dual band mobile transceiver designed for amateur radio operators who want both traditional analog FM capability and modern digital communication features. Operating on the 2 meter and 70 centimeter amateur radio bands, this radio delivers strong transmit power, an intuitive touchscreen interface, built-in GPS functionality, and full support for D-STAR digital voice and data communication.

Icom has long been known for producing high quality amateur radio equipment, and the ID-5100A Deluxe continues that tradition by combining durability, advanced features, and a user-friendly design. Whether installed in a vehicle or used as a base station, this radio offers impressive flexibility and performance for both everyday operation and emergency communications.

Overall Design and Build Quality

The ID-5100A Deluxe is designed as a mobile radio with a detachable control head. The main radio body contains the transmitter and receiver components, while the control head houses the display and controls. This configuration allows operators to mount the radio body in a hidden location such as under a seat while placing the control head in an easily accessible position on the dashboard.

The radio has a solid and rugged construction that feels durable and well built. Icom equipment is known for reliability, and the ID-5100A continues that reputation with a design that can withstand long-term mobile use.

The control head features a large display along with several physical buttons and a tuning knob. The combination of touchscreen operation and traditional controls gives operators the flexibility to operate the radio in whatever way feels most comfortable.

Large Touchscreen Display

One of the most distinctive features of the ID-5100A Deluxe is its large touchscreen display. The screen measures approximately 5.5 inches, making it significantly larger than most mobile radio displays.

This large display makes the radio easy to read while driving and greatly simplifies navigation through the menu system. Frequencies, signal strength indicators, operating modes, and other information are clearly displayed.

The touchscreen allows operators to quickly enter frequencies, select memory channels, and access radio functions without needing to scroll through complicated menus. A virtual keypad appears on the screen for entering frequencies or text information, which makes programming and D-STAR operation much easier than on radios that rely entirely on buttons.

Despite being a monochrome display rather than a color screen, the visibility is excellent and the interface remains clean and easy to understand.

Dual Band Operation

The ID-5100A Deluxe operates on both the VHF 144 MHz band and the UHF 440 MHz band. This allows the radio to access a wide range of amateur radio repeaters and simplex frequencies.

One of the major advantages of this radio is its ability to monitor two frequencies at the same time. This dual watch capability allows operators to listen to activity on both bands simultaneously. For example, an operator could monitor a local repeater on one band while scanning another frequency on the second receiver.

This feature is especially useful during public service events, emergency communications operations, or busy nets where multiple channels must be monitored.

The radio also has wideband receive capability, allowing it to monitor frequencies outside the amateur bands, including aviation communications.

Transmit Power and RF Performance

The ID-5100A Deluxe provides strong transmit performance with up to 50 watts of output power on both VHF and UHF bands. This level of power is ideal for mobile communication and allows operators to easily access distant repeaters or maintain strong simplex communication.

Multiple power settings are available, allowing users to select lower power levels when operating close to repeaters or when conserving energy in portable setups.

Receiver performance is excellent, with strong sensitivity that allows the radio to hear weak signals clearly. The receiver handles crowded band conditions well and provides clean audio even in challenging environments.

D-STAR Digital Communication

One of the main reasons many operators choose the ID-5100A is its built-in support for D-STAR digital communication.

D-STAR is a digital voice and data protocol used in amateur radio networks around the world. It allows operators to communicate through digital repeaters and internet linked reflector systems, enabling contacts across cities, countries, and even continents.

The ID-5100A makes D-STAR operation relatively simple through its DR mode, which streamlines the process of connecting to repeaters and linking to reflectors. Instead of manually programming complicated routing commands, operators can select the desired repeater or reflector directly from the radio interface.

Digital voice quality is generally very clear, and the system also allows for text messaging and data transmission alongside voice communication.

Built-In GPS Receiver

Another important feature of the ID-5100A Deluxe is its integrated GPS receiver. This built-in GPS allows the radio to determine the operator's position and use that information in several useful ways.

One of the most practical features is automatic repeater location. The radio can use GPS data to identify nearby D-STAR repeaters and make it easier for operators to connect to local systems when traveling.

The GPS also enables position reporting and tracking functions that are used in various digital communication applications. This can be useful for mobile operators, emergency communications teams, and public service event coordination.

Memory Channels and Scanning

The ID-5100A Deluxe includes a large number of memory channels that allow operators to store frequently used frequencies, repeaters, and digital communication settings.

Channels can be organized into groups for easy access and efficient scanning. The radio offers several scanning modes, allowing users to search for activity across stored channels or frequency ranges.

Programming memory channels can be done directly through the touchscreen interface, but many operators prefer to program the radio using computer software for faster setup and easier data management.

Bluetooth and Smartphone Integration

The radio supports optional Bluetooth connectivity through an additional module. When installed, this allows the radio to connect to wireless headsets or other compatible devices.

Bluetooth capability also enables integration with smartphone applications that can control certain radio functions remotely. This feature can be especially useful for mobile operators who want hands-free operation or remote control capability.

Audio Quality

Audio performance is strong on both transmit and receive. Received signals sound clear and natural through the radio's speaker, even when signals are somewhat weak.

The included hand microphone provides good audio clarity and includes several programmable buttons that can be assigned to frequently used functions.

For operators working in noisy vehicle environments, optional noise cancelling microphones are available to improve transmitted audio quality.

Installation and Power Requirements

The ID-5100A Deluxe is designed primarily for mobile installation in vehicles, but it can also function effectively as a base station radio.

The detachable control head allows flexible mounting options. The radio body can be installed in a hidden location while the control head remains accessible to the operator.

The radio operates on a standard 13.8 volt DC power supply, which is typical for mobile amateur radio equipment. When used as a base station, an external power supply is required.

Advantages

Large easy to read touchscreen display
Full D-STAR digital voice and data capability
Integrated GPS for repeater lookup and position reporting
Strong 50 watt transmit power on both bands
Dual band simultaneous receive capability
Extensive memory channel storage
Solid Icom build quality and reliability

Potential Drawbacks

The radio does have a few minor limitations. The menu system and digital configuration may require some time to learn, especially for operators who are new to D-STAR operation.

The display, while large and easy to read, is monochrome rather than color. Some newer radios now feature full color screens.

Additionally, Bluetooth functionality requires an optional module rather than being included by default.

Who This Radio Is Best For

The ID-5100A Deluxe is an excellent choice for amateur radio operators who want a powerful mobile radio with modern digital communication capabilities.

It is particularly well suited for mobile operators, D-STAR users, emergency communication groups, and amateur radio enthusiasts who travel frequently and benefit from GPS based repeater lookup.

Final Verdict

The Icom ID-5100A Deluxe remains one of the most capable and popular dual band mobile radios available for amateur radio operators. Its large touchscreen display, built-in GPS receiver, strong transmit power, and advanced D-STAR features make it a versatile communication tool for both analog and digital operation.

While it may take some time to fully learn all of its features, the radio rewards operators with excellent performance and a powerful set of capabilities. For anyone looking for a modern mobile transceiver that combines traditional amateur radio operation with advanced digital networking, the ID-5100A Deluxe is a highly impressive and reliable choice.

See The Icom ID-5100A On Amazon!

Friday, June 13, 2025

Icom IC-705 HF/VHF/UHF All Mode Portable QRP 5W/10W Transceiver – A Full In-Depth Review


The Icom IC-705 is a game-changer in the world of portable ham radios. Designed for amateur radio operators who want an all-in-one, travel-friendly transceiver without sacrificing performance or features, the IC-705 is a highly compact and sophisticated rig that brings together the best of Icom's technology into a lightweight and versatile package. Covering HF, VHF, and UHF bands with all-mode operation—including SSB, CW, RTTY, AM, FM, and D-STAR digital voice—the IC-705 is ideal for portable, QRP, and even base station use in a pinch.

Design and Build Quality

Right out of the box, the IC-705 impresses with its robust and polished design. It’s compact enough to fit in one hand but feels incredibly sturdy. The transceiver weighs approximately 2.4 pounds (1.1 kg), making it a comfortable companion for field operations, SOTA (Summits on the Air), and POTA (Parks on the Air). The build is dominated by a large 4.3-inch color touchscreen display which serves as the centerpiece for user interaction.

The layout of controls is clean and intuitive. The front panel sports a combination of physical buttons and knobs, augmented by the touchscreen, providing a user-friendly interface that blends traditional and modern controls. The top and side panels house connections for antenna, microphone, power, and accessories, all well-marked and easily accessible.

Band Coverage and Power Output

The IC-705 offers wideband receive coverage from 0.030 to 144 MHz and 430–450 MHz, allowing users to monitor a broad spectrum of frequencies. On transmit, the radio covers the amateur bands on HF (160 to 10 meters), VHF (2 meters), and UHF (70 centimeters). Power output is selectable between 0.5W to 5W on internal battery and up to 10W when using an external 13.8V power supply. This makes it perfect for QRP enthusiasts while still providing enough punch for solid contacts in favorable conditions.

Despite being a QRP radio, the IC-705 performs remarkably well in signal strength and clarity. It utilizes Icom's RF direct sampling system for HF and IF sampling for VHF/UHF, minimizing signal loss and maximizing efficiency. The receiver is sensitive, with low noise, and capable of handling crowded band conditions with ease.

Display and Interface

The large color touchscreen is a standout feature of the IC-705. It offers vibrant visuals, quick response times, and easy navigation. Touch access to frequency settings, menus, and scope features adds a layer of convenience that is rarely found in portable rigs. The real-time spectrum scope and waterfall display provide a clear, high-resolution view of band activity, which is invaluable during portable operations.

The screen also displays SWR, power output, voltage, and a wide array of operational parameters, making it easy to monitor performance in the field. Menu navigation is logical and organized, and once a user becomes familiar with the system, adjustments can be made quickly and accurately.

Connectivity and Features

The IC-705 is loaded with connectivity options. It includes built-in Wi-Fi, Bluetooth, GPS, and a microSD card slot. The Wi-Fi feature allows for remote operation via Icom’s RS-BA1 app, and the Bluetooth can be used for wireless headsets and audio accessories. The built-in GPS enables automatic grid locator updates and location stamping for logs.

Another welcome inclusion is the USB-C port, which handles data communication, audio, and even power, making it compatible with modern computing equipment and simplifying digital mode operation. The radio is compatible with a wide array of digital modes such as FT8, PSK31, and RTTY when connected to a computer.

Battery and Portability

The IC-705 comes with the BP-272 Li-ion battery pack, which is also used in Icom’s handheld radios. While this is a convenient option, the battery life depends heavily on usage. Operating with full screen brightness and high transmit rates will drain the battery faster than expected, but under average portable operation, the battery holds up respectably.

Field operators will likely want to bring extra battery packs or use an external power supply to extend operation time. Despite this, the portability of the IC-705 makes it a preferred option for those who enjoy operating from remote locations.

Audio and Performance

The IC-705 delivers excellent audio quality both on transmit and receive. The internal speaker produces clear and loud sound, even in outdoor conditions. For those who want higher fidelity or need to operate discreetly, a headphone jack and Bluetooth audio compatibility are available.

On-air reports often highlight the clarity and punch of the transmitted audio. The built-in microphone is good, but Icom also offers optional mics for those wanting different configurations. The combination of clean transmission, sensitive reception, and advanced DSP filtering ensures strong performance even under challenging band conditions.

Logging and SDR Capabilities

Another feature worth highlighting is the SDR-like performance of the IC-705. With its direct sampling receiver and comprehensive real-time band scope, the radio mimics many of the capabilities found in full-size SDR transceivers. This is especially useful for those who are serious about monitoring multiple signals, spotting weak signals, and adjusting operating strategies in real-time.

Logging is made easier with the internal GPS and the ability to store logs on a microSD card. This helps simplify post-operation analysis or uploading to digital logging platforms.

Final Thoughts

The Icom IC-705 is a near-perfect companion for the modern ham radio operator who values portability, versatility, and technology. While it does come with a premium price tag, it more than justifies the cost with its wealth of features, performance capabilities, and cutting-edge technology packed into a compact chassis.

Whether used for portable QRP operations, base station backup, digital modes, or simply casual listening across the bands, the IC-705 stands out as a top-tier transceiver. It bridges the gap between handheld convenience and desktop functionality, making it one of the most innovative and desirable radios in the amateur radio market today.

See The Icom IC-705 On Amazon!

Sunday, December 1, 2024

In-Depth Review of the Icom IC-7100 HF/50/144/440 MHz Amateur Radio Transceiver


The Icom IC-7100 is a versatile, feature-rich amateur radio transceiver that combines modern design, robust functionality, and the convenience of digital modes like D-STAR. As a mobile HF/50/144/440 MHz unit, the IC-7100 caters to operators who value flexibility and advanced communication options. This review explores its key features, usability, performance, and overall value.


Key Features

  1. Frequency Coverage

    • Covers HF, 6m (50 MHz), 2m (144 MHz), and 70cm (440 MHz), offering a broad spectrum of operating bands.
    • Supports all major modes, including SSB, CW, AM, FM, RTTY, and D-STAR.
  2. Touch-Screen Interface

    • A monochrome resistive touch screen facilitates intuitive navigation through menus.
    • Includes physical buttons for frequently used functions, balancing touchscreen convenience with tactile feedback.
  3. D-STAR Integration

    • Offers native support for D-STAR digital voice and data communications.
    • Seamless operation on D-STAR repeaters and gateways, with support for features like DR (D-STAR Repeater) mode for quick configuration.
  4. Compact, Remote-Mount Design

    • Features a separate control head and main unit for flexible installation in mobile setups.
    • The control head is slim and angled, making it ideal for mounting in vehicles or small operating spaces.
  5. Built-In DSP

  6. 50 Watts Output Power

    • Delivers up to 100 watts on HF and 50 MHz, and 50 watts on 2m and 70cm.
    • Provides ample power for most mobile and base station operations.
  7. USB Connectivity

    • Built-in USB port supports direct computer connection for digital modes, rig control, and firmware updates.
    • No external sound card interface is required, simplifying digital operation setup.
  8. SD Card Slot

    • Allows for storage of configuration settings, D-STAR repeater information, and logs, enhancing portability and convenience.

Design and Usability

  • Control Head Design

    • The angled control head provides excellent visibility when mounted on a dashboard or desk. The screen is legible, even in bright lighting conditions, but the lack of a color display may feel dated compared to other modern transceivers.
  • User Interface

    • The touch screen simplifies menu navigation, though it requires a firmer press compared to modern capacitive touch screens. This design is robust but may take some getting used to.
  • Portability

    • The separation of the control head and main body allows for discrete installation in vehicles, with only the control head requiring dashboard space.

Performance

  1. Receiver Sensitivity and Selectivity

    • The IC-7100 boasts excellent receiver sensitivity, capable of pulling in weak signals on crowded bands.
    • DSP features like adjustable IF filtering, noise reduction, and twin PBT (Pass Band Tuning) enhance selectivity.
  2. Transmitter Performance

    • Solid transmit audio quality, with the included HM-198 hand microphone providing clear and natural audio.
    • Consistent output power across bands ensures reliable communication.
  3. Digital Modes and D-STAR

    • D-STAR operation is smooth, with DR mode making repeater configuration straightforward. The IC-7100 supports both voice and data communication over D-STAR.
  4. Mobile Operation

    • Performs well as a mobile rig, with minimal signal drift even under vehicle motion.
    • The remote-mount option and ease of powering from a 12V system make it ideal for on-the-go use.

Strengths

  • Broad frequency coverage and multi-mode operation.
  • Built-in DSP and D-STAR support.
  • Touchscreen interface simplifies complex menu navigation.
  • Compact and versatile design for mobile and base use.
  • Integrated USB port reduces the need for additional interfaces.
  • Good value for a radio with such a broad feature set.

Drawbacks

  • Monochrome screen may feel outdated compared to color displays on other transceivers.
  • Resistive touchscreen requires deliberate input, which some users might find less responsive.
  • No built-in antenna tuner; external tuner required for non-resonant antennas.
  • Limited memory slots for saving frequency presets compared to some competitors.

Overall Value

The Icom IC-7100 is an excellent choice for amateur radio operators who prioritize versatility, advanced digital features, and a compact design. While it lacks some modern luxuries like a color display, its performance and functionality outweigh these minor drawbacks. The inclusion of D-STAR, robust DSP, and all-band coverage make it a future-proof investment for both mobile and base station use.

At its price point, the IC-7100 offers tremendous value, making it a strong contender for amateurs seeking a reliable, feature-packed transceiver.


Who Should Buy It?

  • Mobile operators who need a compact, remote-mount transceiver.
  • Amateur radio enthusiasts looking to explore D-STAR and digital modes.
  • Multi-band/multi-mode users who want an all-in-one solution.

Rating: 4.5/5

The IC-7100 is a well-rounded transceiver that balances modern features with a straightforward, reliable design. Despite a few minor shortcomings, it remains a popular and respected choice in the amateur radio community.

Find The Icom 7100 On Amazon!

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