ACOM 06AT remote tuner, 4 antennas
Remote automatic HF + 6 m tuner with 4-way antenna switch, for ACOM solid-state amplifiers
The ACOM 06AT is a remote automatic antenna tuner for HF and 6 metres with a built-in four-way antenna switch. It brings the SWR typically below 1.3:1 (guaranteed below 1.5:1) and presents the optimum load to the amplifier.
Product description
It is designed to work with ACOM solid-state amplifiers: 500S, 600S, 700S, 1200S, 1400S and 2020S. With CAT connected, just press TUNE on the amplifier: the rest is automatic.
For each antenna you can choose narrow, normal or wide segments, suitable both for a narrow-band dipole and for a log-periodic. Settings are kept in non-volatile memory, with over 1000 fixed frequencies per antenna, and are recalled instantly when changing band or antenna. They can be saved and restored from a PC; the tuner also reports the "age" of the settings.
During tuning the SWR stays below 2:1 to protect the amplifier. The gold-plated relays switch only when no RF is present, with no arcing or oxidation. The L-network, with air-wound coils and NP0 (C0G) ceramic capacitors, also acts as a low-pass filter for harmonics.
It can be installed up to 100 metres from the station, in a sheltered location. A single coaxial cable to the amplifier carries power (26 V DC), control and status. It offers automatic or manual antenna switching, customisable antenna names, BYPASS mode for broadband antennas, a built-in arrester and automatic grounding of the antennas at power-off.
Key features
Built-in switch, BYPASS for broadband.
Full tune in under 5 s, from memory in under 0.05 s.
Power and control over the coax.
Up to 100 m from the station.
Compatibility
Early ACOM 600S units may need an update for use with the 06AT. For the 2020S, although compatible, ACOM recommends the 20AT tuner.
Technical specifications
| Bands | HF and 6 m |
| Antenna outputs | 4 + BYPASS mode |
| SWR after tuning | typically < 1.3:1, guaranteed < 1.5:1 |
| SWR during tuning | < 2:1 |
| Tuning time | < 5 s (typically 2–3 s) · from memory < 0.05 s at zero power |
| Memories | over 1000 fixed frequencies per antenna, non-volatile |
| Matching network | Low-pass L, air-wound coils, NP0 (C0G) capacitors |
| Relays | Gold-plated, switching without RF |
| Power supply | 26 V DC via coaxial cable |
| Maximum distance | 100 m from the station |
| Protections | Overvoltage, overcurrent, temperature, excess power, arrester, antenna grounding at power-off |
| Compatibility | ACOM 500S, 600S, 700S, 1200S, 1400S, 2020S |
HamRadioShop | Automatic tuners
