Yaesu FT-891 Review: 100 Watts That Fits Under a Seat

The short answer

Buy the FT-891 if the radio has to move, because it delivers a full 100 watts and a receiver that competes well above its price in a body designed for a car, a go box or a rucksack. Skip it if the radio will live on a desk and you are new to HF, because a spectrum scope teaches you the bands faster than anything else you can buy.

Coverage: HF and 50 MHz
Output power: 100 W, stable output
Modes: AM, FM, USB, LSB and CW
Front panel: Detachable, for remote mounting

The compact HF radio most portable and mobile operators end up buying.

Best mobile and portable HF

Yaesu FT-891 HF and 50 MHz All Mode Transceiver

Around $770

Ultra compact 100 watt all mode HF and 6 metre transceiver with a detachable front panel, designed for mobile and field installation as much as for a desk.

Check price on Amazon

Specifications

Coverage	HF and 50 MHz
Output power	100 W, stable output
Modes	AM, FM, USB, LSB and CW
Front panel	Detachable, for remote mounting
Antenna tuner	None internal
Automatic antenna	Compatible with the ATAS-120A automatic tuning antenna
Approximate price	Around $770

Specifications above come from Yaesu's published specifications and feature list for the FT-891. Treat pricing as approximate, since Amazon pricing moves.

What it does well

A full 100 watts from a body small enough to hide under a car seat or drop into a go box.
The receiver is the part reviewers keep returning to. It is better than the price implies and better than the display suggests.
Detachable front panel with a separation cable makes a tidy mobile install genuinely possible.
Simple, robust and mode complete for HF and 6 metres, with nothing fragile on the outside.
Around two thirds the price of an entry base radio, which leaves budget for the antenna.

Where it falls short

There is no spectrum scope. On a busy band you tune to find activity rather than seeing it, and for a new HF operator that is a slower way to learn.
There is no internal antenna tuner. You need a resonant antenna, an external tuner or the ATAS-120A.
The display is small and the menu system is deep, so common settings live several presses away.
It gets warm at sustained full output. Digital modes want reduced power and airflow.

Planning around the missing tuner

The FT-891 expects an antenna that is already close to resonant. That is not a hardship, it is just a decision you make before the radio arrives. For a home wire, cut it properly with the dipole length calculator and check the result with an SWR sweep. For field work, an end fed half wave sized on the end fed half wave calculator is the usual answer, and it needs no tuner on its design band.

If you want multi band flexibility from one wire, budget for an external tuner and read manual versus automatic tuners first. For a mobile install, the ATAS-120A is the tidy factory answer at a price. Whatever you choose, remember a tuner makes the radio happy without making the antenna efficient, which is set out in tuner versus resonant antenna. Power limits and band privileges come from your licence class and your national regulator, not from the radio.

What owners report

Published owner reviews are strikingly consistent for a radio at this price. The receiver is praised repeatedly, often by operators who own more expensive radios and use the FT-891 in the car, and the phrase that recurs is that it hears better than it has any right to. Mobile installers like the detachable head and the small body, and field operators like that it survives being carried.

The complaints are equally consistent and equally predictable: no scope, no tuner, small screen, deep menus. Almost nobody describes these as defects, because they are the trade that produced the size and the price. The group who report genuine dissatisfaction are people who bought it as a first base radio and then discovered how much they wanted a waterfall.

Owners who run it mobile raise heat and power wiring more than anything electrical. Run heavy gauge wire straight to the battery with a fuse at each end, and give the radio air. Our mobile radio installation guide covers the wiring and the noise sources in the order they bite.

Who it suits

Mobile operators who want real HF in a vehicle rather than a compromise.
Portable and field day operators who need 100 watts and a small package.
Anyone building a go box where volume and current draw both matter.
Second radio buyers who already have a base station and want something that travels.

Who should skip it

First time HF buyers who will operate from a desk. A spectrum scope is worth the extra money at that stage.
Anyone who wants to feed a random wire without an external tuner.
Operators who want VHF or UHF in the same box.
Anyone who dislikes menu driven radios.

Alternatives worth considering

Step-Up Alternative

Icom IC-7300 HF and 50 MHz 100 W Transceiver

Around $1,200

The desk answer. A real time spectrum scope, a touchscreen and an internal tuner, for around half again the price and several times the volume.

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Budget Pick

Xiegu G90 HF Transceiver, 20 W

Around $466

Twenty watts instead of 100, but with a wide range internal automatic tuner and a small waterfall, for a good deal less money. The tuner is the real reason to consider it.

Check price on Amazon

Same Brand, Base Station

Yaesu FT-710 AESS 100 W HF and 6 m SDR Transceiver

Around $1,330

If it turns out the radio is going to live on the desk after all, this is the current Yaesu answer, with a modern front end and a fast internal tuner.

Check price on Amazon

Keep reading

This review draws on published specifications, manufacturer figures and the consensus of verified owner reviews. We have not tested this product ourselves, and we say so rather than implying otherwise. As an Amazon Associate we earn from qualifying purchases.

Common questions

Questions people ask about this

Is the Yaesu FT-891 a good first HF radio?

It is a good first radio if it will move and a compromised one if it will not. The receiver is excellent for the money and 100 watts is 100 watts, but with no spectrum scope you find activity by tuning, which is slower to learn from. If your radio will sit on a desk, the extra spend on an IC-7300 or FT-710 buys a waterfall, and that is the single most educational feature in a modern HF radio.

Does the FT-891 have an antenna tuner?

No internal tuner. You need either a resonant antenna, an external tuner, or Yaesu's ATAS-120A automatic tuning antenna, which the radio is designed to control. Most owners run a resonant dipole or end fed half wave at home and an external tuner in the field. Placing a tuner near the feed point rather than at the radio also keeps standing waves off the coax, which is better practice regardless.

Can the FT-891 run FT8 and other digital modes?

Yes, with a data interface such as a Digirig or a SignaLink for audio and CAT control. Reduce power substantially: digital modes transmit continuously rather than in speech peaks, and this is a compact radio with limited heat sinking. Owners commonly run 30 to 50 watts or less on FT8 and give the radio airflow. Check the duty cycle guidance in the manual for your mode.

Is the FT-891 good for mobile HF?

It is one of the most popular choices for exactly that, because the detachable front panel lets you hide the body under a seat and put the controls where you can reach them. Wire it in heavy gauge cable straight to the battery with fusing at both ends, and expect to spend as much time on noise suppression as on the radio itself. Vehicle installation is where most mobile HF disappointment actually comes from.

FT-891 vs IC-7300: which should I buy?

Decide on where the radio lives. The FT-891 is the same 100 watts in a fraction of the volume, with a very good receiver, no scope and no tuner, at roughly two thirds of the price. The IC-7300 is a desk radio with a waterfall and an internal tuner. A radio that gets used beats one that looks better on paper, so buy the one that fits how you will actually operate.

Keeping your own cut lengths, SWR sweeps and exposure record? The Station Build & Antenna Planner is the paid version of these pages: 8 printable worksheets you fill in with your own numbers, plus the full PDF, $29.

Disclaimer Researched guidance for planning purposes, not professional engineering, electrical or legal advice. Antenna work, RF exposure, mast and tower work, grounding and battery handling all carry real risk that depends on your specific site and installation. Verify anything safety-critical against current FCC rules, the National Electrical Code and the manufacturer's own documentation, and hire a professional where the job calls for one. We research equipment from published specifications, regulatory documents and verified owner reviews rather than claiming hands-on testing we have not done.