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Full Band Radio Receivers AM LW MW SW SSB LSB USB, radio scanner Portable with Antenna ATS‑20+ Si4735, USB Charging
£41.57
In stock
Unlock the world of global communication with the ATS-20+ Si4735 Full Band Radio Receiver, a high-performance portable scanner perfect for DX enthusiasts and ham radio operators. Featuring advanced SSB support and a high-sensitivity DSP chip, this digital receiver ensures crystal-clear reception across AM, LW, MW, SW, and FM bands for unparalleled global listening.
- Full Multi-Band & SSB Support: Seamlessly access FM, AM, LW, MW, and SW frequencies with advanced LSB and USB modes for professional-grade amateur radio monitoring.
- Flagship Si4735 DSP Chip: Experience superior signal stability and precision tuning with a high-performance, future-proof chip housed in a durable aluminum alloy body.
- Portable & Rechargeable Power: Stay connected anywhere with a high-capacity internal lithium battery and convenient Type-C USB charging for long-lasting outdoor use.
- User-Friendly Interface: Monitor real-time signal strength and SNR on the vibrant 0.96-inch OLED display, featuring 22 pre-configured bands for immediate out-of-the-box operation.
In stock
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Manufacture Warranty 1 Year
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Free 30-Day returns
Product Description
Product Overview
Unlock the world of global communication with the ATS-20+ Si4735 Full Band Radio Receiver, the ultimate portable solution for DX enthusiasts, ham radio operators, and emergency preparedness. This high-performance digital radio scanner offers unparalleled coverage across AM, LW, MW, SW, and FM bands, featuring advanced Single Side Band (SSB) support with LSB and USB modes for crystal-clear amateur radio reception. Engineered with the flagship Si4735 high-sensitivity DSP chip, this receiver ensures superior signal stability and noise reduction even in the most challenging environments. Its compact, modern design and robust aluminum alloy construction make it the perfect companion for outdoor adventures or home-based listening. With a vibrant 0.96-inch OLED display providing real-time data on signal strength and SNR, plus the convenience of Type-C USB charging, staying connected to international broadcasts and local emergency alerts has never been easier or more reliable.
Key Features
- Full Multi-Band Coverage: Access a vast spectrum of frequencies including FM, AM, LW, MW, and SW for total global listening versatility.
- Advanced SSB Functionality: Supports Single Side Band (LSB and USB) modes, essential for monitoring amateur radio and maritime communications.
- Crystal Clear Audio: Equipped with a built-in 8-ohm/1W speaker and a 3.5mm headphone jack for flexible, high-fidelity private listening.
- High-Sensitivity Si4735 Chip: Features a high-performance DSP chip that can be user-replaced, maintaining full software compatibility for future-proof performance.
- Portable & Durable Design: Sleek black aluminum alloy housing designed to withstand travel while fitting comfortably in your hand or pocket.
- Rechargeable Power: Integrated high-capacity lithium battery with Type-C USB charging for sustainable, long-lasting power on the go.
- Precision Tuning: Features a standard BNC antenna interface for stable reception and easy antenna upgrades to maximize signal gain.
Important Information
- Universal Charging: Compatible with standard 5V USB chargers and power banks via the included Type-C cable.
- Auto-Save Function: Features an auto-hold setting that retains your frequency and configuration even after a power failure.
- Beginner Friendly: Comes with 22 pre-configured commercial and ham radio bands for immediate out-of-the-box use.
- Maintenance: The internal circuitry is designed for easy access, allowing tech-savvy users to replace chips if required for experimental upgrades.
Why Choose Think Assemble
- Quality Assurance: We rigorously test all electronic components to ensure they meet the high standards required for serious radio hobbyists.
- Fast & Reliable Shipping: Your order is prioritized in our logistics network to ensure your equipment arrives safely and swiftly at your doorstep.
- Expert Technical Support: Our dedicated team of specialists is available to assist you with setup, troubleshooting, and getting the most out of your receiver.
- Secure Shopping: Enjoy peace of mind with our secure checkout process and transparent return policy on all premium radio equipment.
Specification
Overview
| Weight | 312 g |
|---|---|
| Dimensions | 14.99 × 9.98 × 5.99 cm |
| Product Dimensions | 14.99 x 9.98 x 5.99 cm; 312 g |
| Date First Available | 2 July 2025 |
| Manufacturer | KooingTech |
| Item model number | SI4735-RDS-ALL-IN-ONE-OLED |
| Country of origin | China |
| Guaranteed software updates until | unknown |
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8 reviews for Full Band Radio Receivers AM LW MW SW SSB LSB USB, radio scanner Portable with Antenna ATS‑20+ Si4735, USB Charging
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Alan Carrington –
This “KooingTech Full band radio” is a bit of a “blast from the past” for me in that as far as I can tell it is a traditional small portable radio that relies upon analogue radio signals rather than digital;- gosh,- what a refreshing change and so simple to use;- just like “the old days of wireless-radio”! The radio feels reassuringly solidly built and has a metal (alloy?) body that is sufficiently compact to fit into the palm of your hand. (see photographs included with this review.) There is an extendable aerial that comes with the radio which can be “bayonet mounted” onto the back of the radio and swiveled around to help locate the best signal for the chosen waveband and required frequency. A small digital “LED” screen display at the front of the radio confirms the selected frequency which is adjustable via the circular tuning knob which is also at the front. In my opinion the output sound from the radio was adequately clear once I’d “tuned-in” to BBC Radio 4 (speech channel) and there is a video clip included with this review showing me testing it by switching the radio on and listening to that channel. To ensure the radio can be powered easily and conveniently it comes with its own dedicated USB lead enabling its built-in battery to be recharged as easily as a mobile phone.
Audrey Ramage –
Rubbish, so small and couldn’t get nothing on it. Sent it back
UsernameUnknown –
Even with the “best” custom firmware added it’s better but its a shame that the FM broadcast band seems to be hit and miss. Most of the time you cant hear nothing apart from strong legal FM stations.40m band LSB works well under the right conditions outside even with the stock teslecopic antenna. Cant hear much inside though with the small antenna included. There are room for improvements maybe a better antenna would make it shine. I cant give it more than 3stars
Henrikas –
Build quality is solid and it picks up a good range of bands, but tuning isn’t always easy and weaker signals can fade. Great for hobby use if you’re patient.
Alan Carrington –
This “KooingTech Full band radio” is a bit of a “blast from the past” for me in that as far as I can tell it is a traditional small portable radio that relies upon analogue radio signals rather than digital;- gosh,- what a refreshing change and so simple to use;- just like “the old days of wireless-radio”! The radio feels reassuringly solidly built and has a metal (alloy?) body that is sufficiently compact to fit into the palm of your hand. (see photographs included with this review.) There is an extendable aerial that comes with the radio which can be “bayonet mounted” onto the back of the radio and swiveled around to help locate the best signal for the chosen waveband and required frequency. A small digital “LED” screen display at the front of the radio confirms the selected frequency which is adjustable via the circular tuning knob which is also at the front. In my opinion the output sound from the radio was adequately clear once I’d “tuned-in” to BBC Radio 4 (speech channel) and there is a video clip included with this review showing me testing it by switching the radio on and listening to that channel. To ensure the radio can be powered easily and conveniently it comes with its own dedicated USB lead enabling its built-in battery to be recharged as easily as a mobile phone.
Audrey Ramage –
Rubbish, so small and couldn’t get nothing on it. Sent it back
UsernameUnknown –
Even with the “best” custom firmware added it’s better but its a shame that the FM broadcast band seems to be hit and miss. Most of the time you cant hear nothing apart from strong legal FM stations.40m band LSB works well under the right conditions outside even with the stock teslecopic antenna. Cant hear much inside though with the small antenna included. There are room for improvements maybe a better antenna would make it shine. I cant give it more than 3stars
Henrikas –
Build quality is solid and it picks up a good range of bands, but tuning isn’t always easy and weaker signals can fade. Great for hobby use if you’re patient.