Yaesu ATAS-120A review exploring this motorized HF/VHF/UHF antenna’s performance and compatibility

Description

Advantages of the Yaesu ATAS-120A Antenna

I tested out the Yaesu ATAS-120A 40 Meter through 70cm Auto Tune Motorized HF/VHF/UHF Antenna using a compatible Yaesu FT-991A transceiver, and I must say, this antenna has some seriously impressive positives. Setting it up was straightforward, provided you have the optional mobile mount and coaxial cable ready to go, which isn’t included in the package. The automatic tuning capability is a standout feature, as it seamlessly adjusts the antenna length when the radio’s tune button is pressed. It’s almost magical seeing the motorized lower coil section do its job so efficiently.

This antenna is built for convenience and performance. It covers an extensive range from HF through UHF (40 meters through 450 MHz), making it incredibly versatile. I tested it while driving, and the signal clarity was phenomenal, especially on the 40-meter band. The stainless steel whip on top adds durability, which is essential for mobile use. It’s also worth noting that the approximate 5-foot extended length ensures good signal reach without being cumbersome for vehicle mounting.

• Automatic self-tuning is a game-changer for seamless operation.
• Covers a wide frequency range, making it suitable for most communications needs.
• Sturdy build with stainless steel whip, ideal for mobile setups.
• Ease of compatibility with popular Yaesu radios like FT-991A and FT-857D.

Caveats to Keep in Mind

While the Yaesu ATAS-120A antenna has many strengths, it’s not without a few areas of concern. The fact that it requires a separate mobile mount and coaxial cable can be a bit of a hassle. I had to go out of my way to procure these accessories, which added to the overall cost and delayed the setup. If you’re not already equipped with these, keep that in mind.

Another thing I noticed was the weight. At only 0.01 ounces, the antenna itself is exceptionally light, but that also made me a little skeptical about its long-term durability. Thankfully, the motorized tuning feature worked flawlessly, but I wonder how it would hold up over extended use and exposure to the elements.

• Requires additional accessories, which aren’t included.
• Lightweight build may raise questions about durability in harsh conditions.

Design and Build Quality

The design of this antenna truly reflects Yaesu’s attention to detail. Its two-piece construction combines a motorized lower coil section with a stainless steel whip, ensuring both functionality and durability. The PL-259 style base thread makes it easy to connect to compatible mounts, while the compact 37.3-inch collapsed length ensures it doesn’t feel intrusive when not in use.

What struck me the most was the motorized “trombone” section, which adjusts the antenna length as needed. This feature adds a level of precision that I haven’t experienced with other antennas. The materials used feel premium, and the antenna didn’t wobble or rattle during my drives, even on bumpy roads.

Performance and Usability

Performance-wise, this antenna doesn’t disappoint. Its ability to automatically tune across a broad frequency range means you’re covered for almost any communication scenario, from amateur radio to HF and UHF bands. I tested it with both local and long-range transmissions, and the clarity was consistently excellent. The tuning process was quick and precise, and I didn’t encounter any issues with signal drops or interference.

However, I do wish the setup process was a bit more straightforward. While the instructions were clear, having to source additional mounts and cables felt like an unnecessary step. Once installed, though, the performance made the initial setup effort worth it.

Competing Products

Comparing the Yaesu ATAS-120A to other antennas in the market, it’s clear that this model offers some unique advantages. For instance, I’ve previously tried the Comet CA-2X4SR and found it to be a solid performer, but it lacks the automatic tuning feature that sets the Yaesu apart. Similarly, the Diamond NR770HBNMO is excellent for UHF/VHF but doesn’t cover HF bands, making the Yaesu a more versatile choice.

That said, the Comet CA-2X4SR is more affordable and doesn’t require additional accessories for setup, which could be a deciding factor for budget-conscious buyers. On the other hand, the Yaesu ATAS-120A excels in signal clarity and ease of use, particularly for those already using compatible Yaesu radios.

Cost Efficiency

From a cost-efficiency perspective, I’d say this antenna is a worthwhile investment if you’re serious about amateur radio. While it’s not the cheapest option on the market, the features justify the price. The motorized tuning, extensive frequency coverage, and compatibility with popular Yaesu radios make it a strong contender. If you’re already using a Yaesu transceiver, this antenna is almost a no-brainer, provided you’re willing to invest in the additional accessories.

For me, the combination of performance and convenience makes the higher price point more palatable. However, if you’re new to amateur radio or on a tight budget, you might want to explore simpler, less expensive options first.

In summary, the Yaesu ATAS-120A is a fantastic piece of equipment for anyone looking to enhance their mobile amateur radio setup. It’s not perfect, and the need for additional accessories might be a dealbreaker for some, but the performance and features make it a standout choice for dedicated enthusiasts.

Additional information