After evaluating a wide range of compact portable receivers, we’ve finally selected a model that genuinely impressed us with its performance, usability, and value for money.
Introducing the new TRA Q3004 — a compact multi-band receiver designed for shortwave listeners, travellers, hobbyists, and everyday radio users alike.
Despite its small size and affordable price point, the Q3004 delivers excellent sensitivity and strong overall performance across MW, FM, and Shortwave bands. In fact, interest has already been extremely strong, with a good number of units requested by one of our Pacific Islands customers shortly after evaluation.
For listeners who enjoy exploring the radio spectrum, the built-in search function allows quick scanning of each band to locate active frequencies — making it an excellent companion for both casual listening and serious band scanning.
Why Shortwave Listeners Will Love It
Shortwave listening continues to be one of the most fascinating areas of radio. Whether you’re tuning international broadcasters, regional services, utility stations, or simply exploring what propagates across the bands at different times of day, a good portable receiver can provide hours of enjoyment.
The TRA Q3004 was selected specifically because it performs well where many inexpensive receivers struggle — sensitivity and usable reception.
With coverage from 3.2 to 21.85 MHz, the receiver allows listeners to explore a wide range of shortwave activity, while remaining compact enough to easily take travelling, camping, or keep beside the bed.
For travellers and remote area users, the ability to receive broadcasts across multiple bands can also be extremely useful where internet or mobile coverage may be limited.
Coverage
- MW: 522–1710 kHz
- FM: 64–108 MHz
- SW: 3.2–21.85 MHz
The receiver also features automatic band scanning to quickly locate active stations and frequencies.
Features
- 29 programmable memories for each band
- Clock, alarm, and sleep timer functions
- Keyboard lock
- Display backlight
- Mute function
- Physical power switch
- Compact portable design
Power Options
The Q3004 is designed to operate from 2 x AA batteries, making it ideal for portable operation. It can also be powered from any standard 5V USB power source, offering additional flexibility for home, travel, or emergency use.
Technical Specifications
- Screen: 128 x 64mm
- Sensitivity:
- MW: >10mV/M
- FM: >18dB
- SW: >60uV
- Single Signal Selectivity: Better than 10dB
- Speaker: 57mm diameter, 0.5 watt
Final Thoughts
We looked at many compact receivers before deciding to bring this model in, and the TRA Q3004 stood out for one simple reason — it performs far better than you would expect for its size and price.
Whether you are an experienced shortwave enthusiast, a traveller wanting reliable radio coverage, or simply someone looking for an affordable and capable portable receiver, the Q3004 is well worth a look.
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If you’re new to shortwave listening—or even if you’ve been tuning the bands for years—you may have noticed that reception quality can change dramatically depending on the time of day.
While it’s true that shortwave signals can be received both day and night, there’s a special window that experienced listeners pay close attention to. It’s called the “grayline”, and it can make a remarkable difference to what you hear.
What is Grayline?
Grayline (also known as the terminator) is the moving line that separates day from night as the Earth rotates. During this transition—around sunrise and sunset—conditions in the ionosphere become especially favourable for long-distance radio propagation.
Why Does It Matter?
Shortwave signals rely on the ionosphere to travel long distances. During daylight hours, the Sun energises a layer of the ionosphere called the D layer (around 50–90 km above Earth). This layer tends to absorb radio signals, reducing how far they can travel.
However, as the Sun sets, the D layer quickly fades away. At the same time, the higher F layer (above 140 km) remains active for longer, allowing signals to bounce across vast distances with much less interference.
The result? Stronger, clearer signals—often from places you wouldn’t normally hear.
At sunrise, the opposite occurs. The F layer becomes active first, enabling long-distance reception before the D layer builds up again and begins absorbing signals.
So, When Should You Listen?
For the best results, aim to tune in:
- 1–2 hours before sunrise
- 1–2 hours after sunset
During these periods, grayline propagation can open up exciting listening opportunities across the globe.
Choosing the Right Frequency
Timing isn’t the only factor—frequency matters too:
- Night-time (after sunset / before sunrise):
Lower frequencies (below 15 MHz) tend to perform better. - Daytime:
Higher frequencies (above 15 MHz) generally provide improved reception.
Final Thoughts
Understanding grayline propagation is one of the easiest ways to improve your shortwave listening experience. It’s also one of the most exciting—there’s nothing quite like picking up a distant station you’ve never heard before.
If you’re just getting started, experimenting with different times and frequencies can really help you learn how the bands behave.
Happy listening,
Garry
Tecsun Radios Australi
If you’ve spent time listening to shortwave in Australia, you’ll know one thing for certain: no two days sound the same.
One evening you might pull in Europe clearly. The next, the same frequency is buried in noise. It’s not your imagination — it’s propagation.
Why reception varies so much here
Shortwave signals travel by bouncing off the ionosphere. The strength and angle of those reflections change constantly depending on:
- Time of day
- Season
- Solar activity
- Your location within Australia
- Distance from the transmitting station
Australia sits a long way from many major international broadcasters. By the time those signals reach us, they’ve often travelled thousands of kilometres and reflected multiple times. That means fading, distortion and weak audio are all part of the shortwave experience.
But while you can’t control the ionosphere, you can control your setup.
The Antenna Makes the Difference
One of the most common assumptions is that reception quality is mainly about the radio. In reality, the antenna is often the biggest factor.
The built-in telescopic whip is convenient and portable, but it’s a compromise. In many Australian conditions — especially when chasing weak international stations — upgrading your antenna can dramatically improve what you hear.
Simple upgrades that work
You don’t need an elaborate tower or expensive system. Often, a modest external antenna will outperform a stock whip antenna immediately.
Some options include:
- Long wire antennas – Simple, affordable and highly effective for shortwave.
- Portable reel antennas – Easy to deploy when travelling or in small spaces.
- Tuned loop antennas – Useful for reducing noise and improving signal clarity in suburban environments.
Placement matters just as much as the antenna itself. Getting the wire outdoors, higher off the ground, and away from household electronics can significantly reduce interference.
Matching the Antenna to the Radio
Having the right antenna is only part of the equation. Your radio needs the filtering and signal handling capability to make the most of what the antenna delivers.
The Tecsun shortwave receivers are particularly well suited to Australian conditions. Digital Signal Processing (DSP) on the HF band is a major step forward for pulling weak signals out of fading and background noise. Selectable IF bandwidth allows you to narrow the signal to reduce interference from adjacent stations — something that’s especially useful when bands are crowded.
With an external antenna connected, Tecsun receivers have the sensitivity and filtering control to take advantage of even modest antenna upgrades.
A Practical Approach
If you’re not getting the results you expect:
- Try listening at different times of day.
2. Try a known frequency that broadcasts 24/7, like the WWV time signal on 10000 and 15000 Khz.
3. Experiment with band changes — higher frequencies often work better during daylight, lower bands at night.
4. Upgrade your antenna before upgrading your radio.
5. If you already have a capable radio, connect an external antenna and experiment with bandwidth settings.
Shortwave in Australia can be incredibly rewarding once you understand how conditions affect what you hear.
If you’re looking to improve your setup, explore our range of antennas and radios in our webstore and see what a well-matched system can really do.
Check out our full range of antenas here https://www.tecsunradios.com.au/store/product-category/antenna/