If you enjoy shortwave listening, you may eventually wonder whether you really need a dedicated shortwave receiver or whether a ham radio transceiver can do the job just as well. Modern amateur radio equipment has become remarkably capable on receive, while dedicated communications receivers continue to offer features and operating characteristics that appeal specifically to listeners.
We wanted to compare those two approaches in a practical listening situation rather than simply compare specifications. The comparison centered on the Icom IC-7300 ham transceiver, the Icom IC-R75 communications receiver, and the CommRadio CR-1a compact communications receiver while listening to a strong shortwave broadcast signal.
The results were interesting because there was no simple winner. All three receivers were capable of handling a strong shortwave signal, but they approached the listening experience very differently.
Table of Contents
Ham Receiver vs Shortwave Receiver at a Glance
Feature | Icom IC-7300 | Icom IC-R75 | CommRadio CR-1a |
|---|---|---|---|
Basic type | HF/50 MHz ham transceiver | Communications receiver | Compact SDR receiver |
Transmit capability | Yes | No | No |
Shortwave reception | Yes | Yes | Yes |
Receiver architecture | Direct-sampling SDR | Superheterodyne | DSP/SDR |
Spectrum display | Yes | No | No |
Waterfall | Yes | No | No |
Touchscreen | Yes | No | No |
Primary strength | Versatility and modern DSP | Dedicated HF reception | Compact operation |
Best suited to | Ham radio + shortwave | Dedicated listening | Portable HF monitoring |
The IC-7300 is fundamentally different from the other two radios because it is a complete amateur radio station rather than a receive-only communications receiver. Its receiver covers a broad frequency range, and Icom specifies SSB, CW, RTTY, AM and FM receive modes for the USA version. It also uses RF direct sampling and FPGA processing.
The IC-R75 and CR-1a take a different approach. They are designed around receiving rather than transmitting, which can make their controls and overall operation more focused for someone whose primary interest is listening.
What We Compared
This was a practical listening comparison rather than a laboratory receiver test. We were interested in the things that actually affect the experience of sitting down and listening to a shortwave station.
The comparison focused on:
- Audio quality
- Signal reception
- DSP and filtering
- Noise handling
- Listening comfort
- Receiver operation
- Overall flexibility
The radios were tuned to WBCQ during a period when the signal was strong. That provided a useful opportunity to compare the tonal characteristics and general listening experience of the receivers.
There is an important limitation, however. The radios were not connected to identical antennas, so this should not be treated as a controlled laboratory A/B test. Antenna type, placement, feed line, balun, local RF noise and other factors can have a substantial effect on what a receiver sounds like.
That limitation is important because a receiver comparison can easily become misleading if we treat every difference in signal strength or audio as a characteristic of the radio itself.
The Receiver Setup
Radio | Type | Antenna / Setup |
|---|---|---|
Icom IC-7300 | HF/50 MHz transceiver | 31-foot vertical with 9:1 balun |
Icom IC-R75 | Communications receiver | Random-wire antenna with 9:1 balun |
CommRadio CR-1a | Compact SDR receiver | Random-wire antenna with 9:1 balun |
The IC-7300 was being used as a receiver for this comparison, even though its primary purpose is amateur radio operation. Its general-coverage receive capability makes it perfectly suitable for listening to many shortwave broadcasts.
The important point is that we were comparing how these radios work as receivers, not testing their transmitting capabilities.
How Well Did They Receive the Signal?
All three receivers handled the strong WBCQ signal well.
The IC-7300 showed the station at more than S9 with the RF gain fully open. The signal was strong and stable, while the R75 and CR-1a also provided solid reception.
There was no dramatic difference in basic signal acquisition. That is worth emphasizing because receiver comparisons sometimes make small differences appear much more significant than they are in everyday listening.
Once we moved beyond the question of whether a radio could receive the station, the more interesting differences appeared.
We started paying more attention to:
- Audio character
- Filtering
- DSP behavior
- Speaker performance
- Listening fatigue
- Control ergonomics
Those characteristics can have a much greater effect on the enjoyment of a strong shortwave broadcast than another few dB of theoretical receiver performance.
The IC-7300 as a Shortwave Receiver
The Icom IC-7300 is primarily an amateur radio transceiver, but its receiver is considerably more capable than that description might suggest.
The USA version provides receive coverage from 30 kHz to 74.8 MHz, although Icom identifies specific guaranteed ranges within that overall coverage. It supports SSB, CW, RTTY, AM and FM receive modes and uses an RF direct-sampling system with FPGA processing.
That architecture gives the IC-7300 several advantages for shortwave listening.
Modern DSP and Filtering
The IC-7300 gives us a level of digital control that simply was not available on many older communications receivers.
The radio provides adjustable filtering and DSP functions, along with noise reduction and notch filtering. Its real-time spectrum scope and waterfall also let us see signals across the band rather than finding them entirely by ear.
That can be particularly useful when exploring crowded shortwave bands.
Instead of slowly tuning across a band and waiting for a signal to emerge, we can look at the spectrum display, identify activity and move directly to a signal of interest.
The IC-7300 Is More Than a Receiver
This is perhaps its biggest advantage.
With the IC-7300, the same piece of equipment can be used for:
- Shortwave listening
- Amateur radio reception
- Amateur radio transmission
- Digital modes
- CW
- SSB
- RTTY
- Band scanning and monitoring
Icom specifies up to 100 watts of transmit power on HF and 50 MHz for the USA version, making the radio a complete station rather than a dedicated listening device.
For someone who intends to become active in amateur radio, that changes the calculation considerably.
The Icom IC-R75 as a Dedicated Receiver
The IC-R75 represents a very different philosophy.
Rather than combining receiving with transmitting, it was designed specifically as a communications receiver. That makes its purpose immediately obvious: connect an antenna, tune the receiver and listen.
There is no transmitter, no touchscreen and no waterfall display competing for attention.
For a listener who primarily wants to explore HF and shortwave, that simplicity can be appealing.
The R75 also has the feel of a traditional communications receiver, which is part of its appeal to enthusiasts who enjoy the operating experience as much as the technical specifications.
The R75 Listening Experience
During the comparison, the R75 produced strong reception on the WBCQ signal.
Its presentation was noticeably different from the IC-7300. Rather than feeling like a modern SDR transceiver, the R75 provided the more traditional communications-receiver experience.
That does not automatically make it better or worse.
It simply means that someone who enjoys traditional receiver operation may prefer the R75’s approach, while someone who wants a modern visual interface and extensive DSP controls may prefer the IC-7300.
The CommRadio CR-1a
The CommRadio CR-1a takes the compact-receiver concept in a completely different direction.
It is a small SDR-based communications receiver designed for HF through VHF/UHF operation, with its own processing rather than requiring a computer for basic operation. CommRadio’s own information describes the CR-1a as a rugged SDR receiver with an internal lithium-ion battery and very low power consumption.
Its compact size was one of the most interesting aspects of the comparison.
A receiver does not necessarily need to occupy a large desktop space to provide useful HF reception.
The CR-1a demonstrates that a small receiver can be a serious monitoring tool, particularly when portability and low power consumption matter.
Audio Quality: Where Things Get Interesting
The question in the title is deliberately about sound, because receiver specifications do not tell the whole story.
Two radios can receive essentially the same station and still provide noticeably different listening experiences.
The differences can come from:
- Receiver filtering
- DSP processing
- Speaker design
- Audio bandwidth
- Headphones
- External speakers
- Audio processing
- The characteristics of the particular signal
That is exactly what we found in this comparison.
IC-7300 Audio
The IC-7300 produced a clean, modern presentation.
Its digital processing gives us extensive control over the received signal, and its filtering can be adjusted to suit the type of signal being received.
Icom also specifically designed the IC-7300 with a dedicated speaker unit and chassis space intended to improve sound quality.
For someone who likes a modern SDR-style operating experience, the combination of DSP, filtering, display and audio control makes the IC-7300 particularly attractive.
IC-R75 Audio
The R75 provided the more traditional communications-receiver experience.
The built-in speaker is not necessarily the last word in audio quality, so an external speaker can make a meaningful difference when evaluating the receiver as a listening platform.
This is an important distinction. We should not confuse the audio performance of a receiver’s internal speaker with the performance of the receiver itself.
A receiver with excellent RF performance can sound disappointing through a small or poorly matched speaker.
CR-1a Audio
The CR-1a was particularly interesting because of its size.
It produced surprisingly useful audio for such a compact receiver, and adding external audio processing improved the overall listening experience.
That illustrates a larger point that applies to all three radios: the receiver is only one part of the audio chain.
The Audio Chain Matters
It is easy to spend all our attention comparing receivers while ignoring the equipment connected to them.
For serious shortwave listening, we should also consider:
Component | Why It Matters |
|---|---|
Antenna | Determines what signals and noise reach the receiver |
Balun | Can affect matching and common-mode noise |
Feed line | Can introduce loss or unwanted interference |
Speaker | Has a major effect on perceived audio quality |
Headphones | Can reveal detail that a small speaker hides |
DSP | Can reduce unwanted noise and interference |
Room acoustics | Affect perceived sound from speakers |
This is one reason receiver comparisons can produce very different results from one location to another.
A receiver that sounds outstanding with a particular antenna and speaker combination may produce a very different experience in another shack.
Ham Receiver vs Shortwave Receiver: The Major Differences
The most important distinction is not really “which receiver is better?”
It is what we want the equipment to do.
If You Want… | More Suitable Approach |
|---|---|
Shortwave listening only | Dedicated shortwave/communications receiver |
Amateur radio transmitting | Ham transceiver |
Modern SDR controls | Modern SDR-based transceiver |
Spectrum and waterfall display | IC-7300-style SDR transceiver |
Simple receive-only operation | Dedicated receiver |
Portable HF monitoring | Compact receiver such as CR-1a |
One radio for transmitting and listening | Ham transceiver |
Traditional communications-receiver operation | Dedicated communications receiver |
Why a Ham Radio Can Make an Excellent Shortwave Receiver
There is an old assumption that a dedicated shortwave receiver must automatically be superior for shortwave listening.
Modern ham transceivers make that assumption difficult to defend.
A capable HF transceiver can provide excellent shortwave reception while also giving us access to a much larger set of functions.
The IC-7300 is a good example. Its direct-sampling receiver, digital processing, spectrum scope, waterfall and filtering make it a very capable general-purpose HF listening platform.
The major difference is that we are buying a transmitter and amateur-radio functionality along with the receiver.
If we intend to transmit eventually, that additional capability can be extremely useful.
Why a Dedicated Receiver Still Makes Sense
That does not make dedicated receivers obsolete.
There are several good reasons to choose a receiver instead of a transceiver.
First, we may simply have no interest in transmitting.
If the goal is to listen to international broadcasters, utility stations, amateur transmissions, time stations or other HF signals, a receiver can provide everything we actually need.
Second, dedicated receivers can provide an operating experience that is specifically focused on listening.
There is also something appealing about using a communications receiver purely as a listening instrument.
We are not managing transmitter settings, microphone configuration or other functions that have nothing to do with receiving.
What About Receiver Sensitivity?
Sensitivity is important, but it is not the only measurement that matters.
A receiver can have excellent sensitivity and still provide an unsatisfying listening experience if the audio, filtering, ergonomics or noise environment are poor.
For shortwave listening, the antenna and local RF environment can also become limiting factors before the receiver itself does.
This is why we should be cautious about choosing a radio solely from a sensitivity specification.
The practical question is not simply:
How weak a signal can the receiver hear?
It is also:
How usable is that signal once we hear it?
That includes selectivity, adjacent-signal rejection, noise reduction, audio quality and our ability to control the receiver.
DSP Can Change the Listening Experience
Modern DSP is one of the biggest differences between newer SDR-based equipment and many older receivers.
With appropriate filtering and noise-reduction tools, we can often make a marginal signal considerably easier to listen to.
The IC-7300 is particularly strong in this area because its digital architecture provides extensive signal-processing capabilities.
The CR-1a also demonstrates how DSP can be incorporated into a very small receiver.
The R75 takes the more traditional approach, although external DSP equipment can be incorporated into the audio chain.
The important point is that DSP should not be viewed simply as a specification-box feature. Its value becomes apparent when we are dealing with interference, adjacent signals or noisy listening conditions.
The Antenna May Matter More Than the Receiver
This is perhaps the most important lesson from the comparison.
The three receivers were not using identical antennas, which means we cannot use this experiment to make a definitive scientific claim about which receiver has the superior RF performance.
Antenna performance can dramatically affect:
- Signal strength
- Noise level
- Signal-to-noise ratio
- Interference
- Fading
- Overall audio quality
A mediocre receiver connected to an excellent antenna can sometimes produce a much more enjoyable listening experience than an excellent receiver connected to a poor antenna in a noisy location.
That is why antenna experimentation is such an important part of shortwave listening.
Which Should You Choose?
Rather than declaring one receiver the universal winner, we can narrow the decision down according to how we intend to use the equipment.
Choose a Ham Transceiver If You Want:
- Shortwave listening and amateur radio in one station
- The ability to transmit
- Modern SDR functionality
- A spectrum scope and waterfall
- Extensive digital signal processing
- Digital-mode capability
- Room to expand into a larger amateur radio station
The IC-7300 illustrates this approach particularly well. It combines HF/50 MHz transmitting with a capable direct-sampling receiver, modern display technology and extensive DSP functionality.
Choose a Dedicated Communications Receiver If You Want:
- Receive-only operation
- A listening-focused station
- Traditional communications-receiver operation
- Dedicated HF monitoring
- No need for transmitter capability
The IC-R75 fits this traditional receiver philosophy.
Choose a Compact Receiver If You Want:
- Small size
- Low power consumption
- Portable HF monitoring
- A receiver that can be moved easily between locations
- A compact dedicated listening setup
The CommRadio CR-1a represents this approach particularly well, with its compact SDR design and internal battery.
Our Practical Comparison
Category | IC-7300 | IC-R75 | CR-1a |
|---|---|---|---|
Shortwave reception | Excellent | Excellent | Excellent |
Modern DSP | Excellent | More traditional | Excellent |
Spectrum display | Yes | No | No |
Waterfall | Yes | No | No |
Transmit capability | Yes | No | No |
Portability | Moderate | Low | Excellent |
Listening-focused operation | Good | Excellent | Excellent |
System flexibility | Excellent | Good | Good |
Compactness | Moderate | Low | Excellent |
Best overall role | Multi-purpose station | Dedicated HF receiver | Compact HF monitor |
These descriptions are about the roles the radios fill rather than laboratory rankings.
The comparison also illustrates why the question “Which one sounds better?” does not have a universal answer.
Audio preference is partly subjective, and the antenna, speaker, headphones and DSP configuration can all change the result.
What We Learned From the Comparison
The most interesting conclusion was not that one receiver defeated the others.
It was how little the basic ability to receive a strong shortwave station varied between capable radios.
Once the signal was comfortably above the noise, the differences became much more about the listening system and the way each radio presented the signal.
The IC-7300 provided the modern SDR experience, with extensive digital processing, a spectrum display and waterfall. The R75 offered the traditional dedicated communications-receiver approach, while the CR-1a demonstrated how much capability can be packed into a very small receiver.
That makes all three interesting for different reasons.
Final Thoughts
A good ham transceiver can absolutely serve as a shortwave receiver, and a modern model such as the IC-7300 can provide an impressive combination of receive performance, DSP, filtering and visual tools. Its ability to transmit makes it particularly useful for anyone who wants to combine shortwave listening with amateur radio.
A dedicated communications receiver remains attractive when listening is the entire objective. The IC-R75 represents that traditional approach, while the CommRadio CR-1a demonstrates how a compact SDR receiver can provide serious HF monitoring capability without requiring a large desktop setup.
So which sounds better?
There is no universal answer.
The receiver matters, but so do the antenna, local noise environment, filtering and audio system. In our comparison, all three radios were capable of enjoyable shortwave reception, and the differences became more apparent in their operating characteristics and audio presentation than in their ability to simply receive the station.
For someone who wants both shortwave listening and amateur radio, a modern ham transceiver can eliminate the need for a separate shortwave receiver. For someone who only wants to listen, a dedicated receiver can provide a simpler and more focused experience.
The best choice ultimately depends on what we want to do after we turn the radio on.
