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Yaesu ATAS-120A - Yaesu ATAS-120A Auto Active Tuning Antennas
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ShareYaesu ATAS-120A - Yaesu ATAS-120A Auto Active Tuning Antennas
Users say:
This antenna is great for plug-and-play applications and looks great on a variety of vehicles. It is constructed well and works well on a range of frequencies, but may be a little pricey. It is also suitable for practical applications, such as replacing older ATAS 100s.
Yaesu ATAS-120A: Antenna, Mobile, Active Tuning, for HF/VHF/UHF Coverage, Comptible w/FT-891, FT-991A, FT-710, FTDX-10, FT-450/D, FT-857/D, FT-897/D, FT-100/D, Each - Yaesu's patented ATAS Active Tuning Antenna System has been enhanced with the latest model: ATAS-120A. This is a unique mobile antenna that provides HF, VH…
Yaesu ATAS-120A: Antenna, Mobile, Active Tuning, for HF/VHF/UHF Coverage, Comptible w/FT-891, FT-991A, FT-710, FTDX-10, FT-450/D, FT-857/D, FT-897/D, FT-100/D, Each - Yaesu's patented ATAS Active Tuning Antenna System has been enhanced with the latest model: ATAS-120A. This is a unique mobile antenna that provides HF, VHF and UHF coverage with automatic motorized tuning.Designed for use exclusively with Yaesu transceivers that support ATAS, microprocessor controlled voltages are sent on the coaxial cable to adjust the antenna radiator length for best SWR. Yaesu ATAS-120A active tuning antennas cover the 7, 14, 21, 28, 50, 144 and 430 MHz Amateur bands and are compatible with the Yaesu FT891, FTDX-10, FT-710, FT-991A, FT-991, FT-857D, FT-897D, FT-100, FT-100D and the FT-450D. They are typically attached to a vehicle hatch or trunk lip UHF mount (not supplied), also available from DX Engineering. The ATAS-120A antennas were designed for mobile use, however they can be adapted for base, or portable operation with the appropriate mount and a substantial counterpoise radial wire system.Specifications of the Yaesu ATAS-120A Auto Active Tuning Antennas:* Operational Bands: 40, 20, 15, 10, 6 and 2 meters and 70 cm* Height, appx.: 4.59 to 5.25 ft.* Weight, appx.: 1.98 lbs.* Input Impedance: 50 ohms* Maximum Power: 120 Watts, SSB, CW, 50 percent duty cycle* Matched SWR: Less than 2.0:1 with proper grounding or counterpoiseAs with any HF, VHF and UHF mobile antenna, performance depends upon the grounding of the mount and bonding to the metal vehicle surfaces to create an optimal ground plane. Portable VHF and UHF operation is made possible with the addition of the optional Yaesu ATBK-100 Antenna Base Kit. This kit is not required, nor should it be used, for mobile operation.Operational convenience and performance is available for your Yaesu HF, VHF and UHF Mobile Transceiver.
Review summary
AI-generated content
This antenna is great for plug-and-play applications and looks great on a variety of vehicles. It is constructed well and works well on a range of frequencies, but may be a little pricey. It is also suitable for practical applications, such as replacing older ATAS 100s.
Pros
- Plug-and-play functionality
- Good quality
- Looks great on vehicles
- Works on UHF and VHF
Cons
- Overheats on 40M
- Pricey
Read original reviews
Description
Yaesu ATAS-120A: Antenna, Mobile, Active Tuning, for HF/VHF/UHF Coverage, Comptible w/FT-891, FT-991A, FT-710, FTDX-10, FT-450/D, FT-857/D, FT-897/D, FT-100/D, Each - Yaesu's patented ATAS Active Tuning Antenna System has been enhanced with the latest model: ATAS-120A. This is a unique mobile antenna that provides HF, VHF and UHF coverage with automatic motorized tuning.Designed for use exclusively with Yaesu transceivers that support ATAS, microprocessor controlled voltages are sent on the coaxial cable to adjust the antenna radiator length for best SWR. Yaesu ATAS-120A active tuning antennas cover the 7, 14, 21, 28, 50, 144 and 430 MHz Amateur bands and are compatible with the Yaesu FT891, FTDX-10, FT-710, FT-991A, FT-991, FT-857D, FT-897D, FT-100, FT-100D and the FT-450D. They are typically attached to a vehicle hatch or trunk lip UHF mount (not supplied), also available from DX Engineering. The ATAS-120A antennas were designed for mobile use, however they can be adapted for base, or portable operation with the appropriate mount and a substantial counterpoise radial wire system.Specifications of the Yaesu ATAS-120A Auto Active Tuning Antennas:* Operational Bands: 40, 20, 15, 10, 6 and 2 meters and 70 cm* Height, appx.: 4.59 to 5.25 ft.* Weight, appx.: 1.98 lbs.* Input Impedance: 50 ohms* Maximum Power: 120 Watts, SSB, CW, 50 percent duty cycle* Matched SWR: Less than 2.0:1 with proper grounding or counterpoiseAs with any HF, VHF and UHF mobile antenna, performance depends upon the grounding of the mount and bonding to the metal vehicle surfaces to create an optimal ground plane. Portable VHF and UHF operation is made possible with the addition of the optional Yaesu ATBK-100 Antenna Base Kit. This kit is not required, nor should it be used, for mobile operation.Operational convenience and performance is available for your Yaesu HF, VHF and UHF Mobile Transceiver.
Specifications
| Antenna Weight | 1.98 lbs. |
| Antenna Height | 4.59 to 5.25 ft. |
| Frequency Range | 7, 14, 21, 28, 50, 144 and 430 MHz |
| Antenna Type | Active Tuning |
| Mounting Type | Vehicle hatch or trunk lip UHF mount |
| Compatibility | Yaesu transceivers that support ATAS |
| Impedance | 50 ohms |