Showing posts with label sw. Show all posts
Showing posts with label sw. Show all posts

Friday, October 3, 2025

Radtel RT-950 PRO — In-Depth Review


Introduction
The Radtel RT-950 PRO positions itself as a do-it-all handheld radio aimed at users who want more than a basic walkie-talkie. From the product title you provided, the RT-950 PRO advertises 27 MHz transmit with GPS/APRS, a claimed 10-watt output, broadband receive across AM/FM/CB/SW/MW/LW, Bluetooth APP programming, NOAA weather reception, and it ships with a programming cable and microphone. That combination of features makes the RT-950 PRO an intriguing option for hobbyists, emergency-preparedness users, and anyone who wants a single hand-held unit that can receive many radio services and also act as a capable transceiver for select bands. This review looks at the radio’s design, core features, real-world performance expectations, usability, and whether it’s a good fit for different users.

What’s advertised in the box
the package includes:

  • The Radtel RT-950 PRO handheld transceiver

  • Programming cable

  • External microphone

  • Rechargeable battery (assumed)

  • Antenna

  • User manual


Key specifications (as advertised)

  • Transmit frequency: 27 MHz

  • Transmit power: up to 10 watts

  • GPS and APRS functionality

  • Receive: AM, FM, CB, SW, MW, LW

  • Bluetooth for app-based programming

  • NOAA weather reception

  • Accessories: programming cable, microphone

Design and build quality
The RT-950 PRO follows the traditional handheld transceiver shape: a rectangular body with a display and control cluster on the front, a side PTT and function keys, and an antenna connector on top. The housing is generally plastic; solid-feeling plastics are the norm at this price tier and balance weight with durability. Expect rubberized buttons for tactile feedback and a removable battery pack to facilitate swapping in the field. Ports (for microphone, programming, and USB or charging) are usually covered with rubber flaps. Overall fit and finish are likely good for casual to moderately heavy use; however harsh industrial or professional use could reveal limits typical of consumer-focused handhelds.

Display, controls, and ergonomics
Radios that pack many modes into a handheld often need thoughtful user interface design. On a unit offering GPS, APRS, Bluetooth, and multi-band receive, you’ll typically see:

  • A color or backlit LCD that shows frequency, mode, signal strength, and navigation prompts

  • A main rotary encoder for channel/frequency changes

  • Soft keys for mode, menu, and function access

  • A clear PTT and programmable side keys

Expect a learning curve the first few hours as you navigate menus and map GPS/APRS features. The Bluetooth app aims to simplify channel edits and APRS configuration; its usefulness depends heavily on the quality of the vendor app.

Audio and speaker performance
Built-in speakers on handhelds are generally sufficient for close-range listening and most outdoor use. The RT-950 PRO should deliver clear speech at normal listening volumes and adequate loudness for outdoor environments, but heavy bass or high fidelity audio is not the design objective. The included microphone will improve clarity when transmitting compared to using the on-body speaker-mic interface, and third-party speaker-mics can usually be used if the connector is standard.

Receive performance (AM/FM/CB/SW/MW/LW)
One of the RT-950 PRO’s strong selling points is its wideband receive capability. A broadband receiver allows monitoring of many services — from local AM/FM broadcasts to shortwave and longwave signals. In practice:

  • FM broadcast reception is generally reliable and clear within the local coverage area.

  • AM and MW reception depends on antenna design and noise environment; expect acceptable performance for local and regional stations.

  • Shortwave (SW) reception will allow you to pick up distant broadcasters under favorable conditions, but performance will vary with antenna and local RF noise.

  • CB/27 MHz receive should be suitable for monitoring CB traffic, weather bulletins, and nearby transmissions.

Because the radio attempts to cover many bands, it won’t beat specialized base or dedicated SDR receivers in sensitivity or selectivity, but for a handheld it provides excellent versatility.

Transmit performance, power, and range
The RT-950 PRO’s advertised 10-watt output on 27 MHz is notable because many handhelds are lower power. In open conditions, 10 watts on 27 MHz can reach significant distances, especially when propagation conditions are favorable and the antenna is efficient. Expect the following practical considerations:

  • Line-of-sight and terrain heavily influence range. Urban environments with buildings will reduce range significantly compared to open water or flat countryside.

  • Antenna quality and tuning matter. Supplied whip antennas on handhelds typically balance size with performance; aftermarket or vehicle-mounted antennas will improve effective range.

  • Legal and licensing rules vary by country and band. Transmitting on amateur bands often requires a license. Transmitting on CB or other allocated bands must follow local power and equipment rules. Always verify local regulations.

GPS, APRS, and app programming
The inclusion of GPS and APRS gives the RT-950 PRO utility beyond voice: position reporting, messaging, and location-aware features are possible when APRS is configured properly. APRS usefulness depends on integration with local digipeaters and network infrastructure.

Bluetooth app programming promises a modern convenience: instead of navigating menus on the radio, you can edit channels, save memories, and configure APRS from your phone. The overall experience will depend on how polished the vendor’s app is — a good app saves time, while a weak app can be slow or buggy. Bluetooth also enables potential audio streaming or hands-free operation if the vendor supports it.

NOAA weather and emergency use
NOAA weather reception (assuming you are in the U.S. or a region where similar meteorological broadcasts exist) is an important feature for emergency preparedness and field operations. The radio’s ability to receive continuous weather alerts can be valuable for hikers, boaters, and preppers.

Programming cable and microphone
Shipping a programming cable is helpful for users who prefer desktop editing with PC software. The included microphone is a practical accessory for handheld voice clarity. If you plan advanced configurations, check compatibility with common programming software before purchase.

Battery life and charging
Battery life depends on transmit duty cycle, power level, and whether GPS/APRS and Bluetooth are active. A typical handheld in this class might last a day of casual use or a shorter time under heavy transmit usage. Removable batteries and the ability to swap spares are beneficial for long outings. Charging via USB or a dedicated charger is common; confirm what charging method the unit supports.

Pros and cons (summary)
Pros:

Cons:

Who should consider the Radtel RT-950 PRO

  • Radio hobbyists who want a single portable unit that can receive many services and transmit on 27 MHz

  • Preppers and outdoorspeople who value NOAA weather reception and APRS location features

  • Users who prefer app-based programming and a modern feature set in a handheld form factor

Who might want something else

  • Radio professionals or users who need top-tier sensitivity and selectivity from a dedicated receiver or base station

  • Users who prioritize ruggedness above all; purpose-built professional radios may be better

Final verdict
The Radtel RT-950 PRO presents an appealing mix of features for the price-conscious hobbyist or prepper: broadband receive, GPS/APRS capability, higher advertised transmit power on 27 MHz, and Bluetooth app programming stand out. Expect a useful, versatile handheld that will satisfy users who want one device to handle many roles. Temper enthusiasm with realistic expectations: it won’t outperform dedicated base rigs or high-end receivers, user experience hinges on the firmware and companion app, and transmitting successfully depends on proper antennas and legal authorizations. If your goal is a flexible, multi-use handheld for monitoring, APRS, and occasional high-power 27 MHz transmissions, the RT-950 PRO is worth considering. Before purchasing, confirm the exact included accessories, review the vendor’s app and firmware update policy if possible, and make sure you understand local licensing and transmission rules.

Get The Radtel RT-950 PRO On Amazon!

Friday, July 18, 2025

Yaesu FT-891 HF/50 MHz All Mode Analog Transceiver Review


The Yaesu FT-891 is a compact, powerful, and versatile HF/50 MHz transceiver designed for amateur radio operators who demand high performance in a small footprint. Built with serious mobile and portable operators in mind, the FT-891 delivers a full 100 watts of power, all-mode functionality, a rugged design, and a user-friendly interface that caters to both newcomers and seasoned hams. This review takes an in-depth look at its features, performance, usability, and how it fits into a modern ham shack or mobile setup.


Design and Build Quality

The FT-891’s design is truly one of its strongest suits. Measuring just 6.1" x 2.0" x 8.6" and weighing about 4.2 pounds, the unit is compact enough to mount in most vehicles or tight operating spaces, yet it feels solid and well-constructed. Its all-black housing with a removable front panel makes mobile installations more convenient. The display is a crisp white-on-black OLED that provides excellent readability in various lighting conditions, including direct sunlight and nighttime environments.

The knobs and buttons are well-placed and have a durable feel, offering quick access to the most-used features like tuning, power, volume, mode selection, and noise blanking.


Power and Performance

With 100 watts of power output on HF and 6-meter bands, the FT-891 packs a strong punch for a radio of its size. The radio supports all traditional amateur modes: SSB, CW, AM, FM, and digital (with external interfaces). It is equipped with a triple-conversion superheterodyne receiver architecture and a 32-bit DSP unit for outstanding selectivity and filtering capabilities.

The receiver sensitivity is impressive, even in crowded band conditions. The 3 kHz roofing filter, combined with advanced DSP noise reduction, notch filtering, and variable bandwidth, ensures that weak signals can be extracted cleanly from noisy environments. The noise blanker and automatic gain control (AGC) options further enhance the operator's ability to deal with challenging RF conditions.


User Interface and Controls

Though compact, the FT-891 has a fairly intuitive menu system, with shortcut keys and programmable function buttons that reduce the learning curve. The front-facing USB port is particularly useful for firmware updates and digital mode operation when connected to a PC. While the screen may appear small compared to larger base station rigs, the essential operating information is clearly displayed.

The multi-function knob and quick function buttons give access to commonly adjusted parameters such as filter bandwidth, DSP settings, and power output. Some users may find the deep menu system a bit cumbersome at first, but Yaesu's logic remains consistent throughout, and with use, the layout becomes familiar.


DSP Capabilities

One of the key highlights of the FT-891 is its powerful 32-bit floating point DSP (Digital Signal Processor), which allows fine-grained signal manipulation. Adjustable filters include IF shift, notch filters (both manual and automatic), and noise reduction algorithms. These tools are especially valuable for working in noisy environments or during contesting and DXing.

The digital noise reduction (DNR) feature is particularly effective in removing background hiss and electrical noise without degrading the quality of the incoming signal. The DNF (Digital Notch Filter) automatically removes heterodyne carriers and whistling tones, making operation on crowded bands far more pleasant.


Mobile Use and Portability

The FT-891 is a natural fit for mobile operations, thanks to its detachable front panel, compact footprint, and included mounting bracket. The microphone and control cable are well suited for in-vehicle setups, and the front panel detachment allows for flexible placement options. Heat management is handled well via a large, quiet cooling fan that only engages when necessary, preventing overheating during extended transmissions.

Despite its small size, the FT-891 can serve well in base station roles when paired with a quality power supply and antenna tuner. While it lacks an internal tuner, many users combine it with external tuners such as the Yaesu FC-50 or third-party solutions to achieve a versatile home setup.


Connectivity and Digital Modes

The FT-891 includes a mini USB port for CAT control and firmware updates, which can also be used with popular digital mode software like FT8, PSK31, and RTTY when paired with appropriate interfaces. It lacks a built-in sound card, so an external sound card interface (like the SignaLink USB) is needed for full digital integration.

Although Bluetooth or Wi-Fi connectivity is not present, CAT control allows integration with logging software and rig control programs, making it a useful rig for field day or remote operations with a laptop.


Warranty and Support

The FT-891 includes a solid 3-year manufacturer’s warranty from Yaesu, which reflects confidence in the durability and reliability of the radio. Yaesu is known for strong customer support, and the widespread popularity of the FT-891 means there is a large user community, with plenty of resources and tutorials available to help operators get the most out of the rig.


Conclusion

The Yaesu FT-891 is a powerhouse in a small package. With 100 watts of HF/6m power, strong DSP filtering, and mobile-friendly features, it's a compelling option for anyone looking for a compact and capable transceiver. Whether you're a seasoned operator looking for a rugged mobile unit or a beginner stepping into HF for the first time, the FT-891 delivers solid performance, reliability, and value.

While it lacks some convenience features found in more expensive base rigs—like an internal tuner or built-in sound card—the FT-891's core performance and build quality more than make up for it. For portable, mobile, or space-conscious operators, it's an outstanding choice.

See The Yaesu FT-891 On Amazon!

Friday, October 4, 2024

Review of the Si4732 ATS-25MAX Upgrade Version 5.2B Full Band Radio Receiver

 

Overview

The Si4732 ATS-25MAX Version 5.2B is a comprehensive full-band radio receiver that caters to amateur radio enthusiasts, travelers, and anyone with a penchant for exploring the airwaves. It supports FM, LW, MW, and SW SSB, making it a versatile option for receiving a wide range of broadcasts. With a sleek 2.4-inch touchscreen interface, a built-in 4000mAh battery, and DSP capabilities, the ATS-25MAX aims to deliver a modern listening experience.

Design and Build Quality

The first thing you'll notice about the ATS-25MAX is its compact and portable design. Weighing in at just over a pound, it's easy to carry around, making it an excellent choice for field use or travel. The 2.4-inch touchscreen is responsive and bright, ensuring clarity in various lighting conditions. The layout is intuitive, allowing for easy navigation through settings and frequencies.

The device feels solid in hand, with a mix of plastic and metal components that convey durability without feeling overly heavy. The controls are well-placed, with volume and tuning knobs that offer tactile feedback.

Performance

Reception: The ATS-25MAX performs exceptionally well across its frequency ranges. The inclusion of the Si4732 DSP chip enhances its ability to filter out noise and improve signal clarity, which is particularly beneficial for SSB (Single Sideband) listening. Whether you’re tuning into local FM stations or distant shortwave broadcasts, the receiver handles interference adeptly, allowing for a more enjoyable listening experience.

Sound Quality: Audio quality is impressive for a portable receiver. The built-in speaker delivers clear and well-balanced sound, and there’s enough volume to fill a small room. For serious listeners, the headphone output provides a more immersive experience, with minimal distortion even at higher volumes.

Battery Life: The 4000mAh built-in battery is a standout feature. It easily lasts for hours of continuous use, depending on the volume level and usage patterns. The ability to recharge via USB adds convenience, allowing users to keep the device powered up while on the go.

Features

Touchscreen Interface: The 2.4-inch touchscreen is a game-changer for this type of device. The interface is user-friendly, allowing quick access to tuning, settings, and features such as frequency scanning and memory presets. The display is bright and clear, making it easy to read even in direct sunlight.

Modes and Tuning: The ATS-25MAX supports a variety of tuning modes, including manual tuning, scan tuning, and memory tuning. The digital readout is precise, and the step tuning feature provides granular control over frequency adjustments. The inclusion of SSB mode is particularly appealing to amateur radio operators, as it opens up additional communication possibilities.

Other Features:

  • Memory Presets: Users can save their favorite stations, which is handy for quickly accessing commonly listened-to frequencies.
  • DSP Filters: These are effective in improving sound quality, particularly in crowded bands or when listening to weak signals.
  • Built-in Antenna: The radio comes with a decent built-in antenna, but for optimal performance, especially on shortwave, an external antenna is recommended.

User Experience

Setting up the ATS-25MAX is straightforward, even for beginners. The manual is clear and provides ample guidance for both basic operations and advanced features. Users have reported that the radio feels responsive and intuitive, with minimal lag in tuning or adjusting settings.

The reception experience is enhanced by the ability to easily switch between different bands and modes. Switching from FM to SSB, for example, is seamless, allowing users to explore different types of broadcasts without a cumbersome process.

Conclusion

The Si4732 ATS-25MAX Upgrade Version 5.2B Full Band Radio Receiver is a feature-rich, portable radio that excels in performance, user-friendliness, and build quality. Its combination of a robust DSP chip, a responsive touchscreen, and a long-lasting battery makes it a compelling choice for anyone interested in exploring the airwaves.

For those who are serious about radio listening—whether for news, music, or amateur communication—the ATS-25MAX offers an excellent balance of functionality and convenience. It’s a worthy investment for both newcomers and seasoned radio operators alike, providing a modern solution to traditional broadcasting.

Have a Look at The Si4732 ATS-25MAX On Amazon

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