ACOM 1500 1.5 kW HF + 6 m
Linear amplifier with 4CX1000A tetrode, 1.8–54 MHz, 1500 W PEP / 1200 W carrier, VFD display, 3 antenna outputs
The ACOM 1500 is a tube linear amplifier for all amateur bands from 1.8 to 54 MHz, with 1500 W PEP or 1200 W continuous carrier and a single 4CX1000A tetrode.
Product description
The TRI, together with the automatically controlled input attenuator, matches the antenna to the optimum load impedance of the tube quickly and accurately, typically in 5–10 seconds. The automatic return-to-operate function avoids manual intervention.
No external tuner is needed for antenna SWR up to about 3:1. The amplifier withstands up to 300 W of reflected power, overdrive peaks up to 100 ms and tuning errors; on weak mains it delivers more than half power at 85% of rated voltage, tolerates voltage dips up to 10 ms and overvoltages of 15%.
All readings appear as text on the high-brightness vacuum fluorescent display (VFD), with peak power always on the top line. The vacuum bypass and antenna relays are practically silent even in QSK. The memory stores data for the last 7 protection events.
Key features
1200 W continuous carrier.
Antenna SWR up to 3:1.
Vacuum relays.
Selectable from the front panel.
Technical specifications
| Coverage | Amateur bands 1.8–54 MHz |
| Output power | 1500 W PEP · 1200 W continuous carrier, no mode limits |
| IMD | better than 35 dB below rated output |
| Hum and noise | better than 40 dB below rated power |
| Harmonics | better than 50 dB (1.8–21.5 MHz) · 66 dB (24–54 MHz) |
| Impedance | 50 Ω unbalanced, UHF (SO-239) connectors |
| Input SWR | < 1.3:1 over 1.8–54 MHz, no tuning or switching |
| Bypass SWR | < 1.1:1 |
| Output matching | SWR 3:1, higher at reduced power |
| RF gain | 13 dB typical (60–85 W for rated output) |
| Tube | 4CX1000A tetrode, 1000 W dissipation, class AB1 |
| Power supply | 85–132 V and 170–264 V, 50–60 Hz, single-phase, 3500 VA (taps 100–240 V, +10% −15%) |
| Dimensions and weight | 422 × 355 × 195 mm, 26.5 kg |
| Operating environment | 0…+50 °C, humidity up to 95% at 35 °C, up to 3000 m a.s.l. |
| Compliance | CE (safety and EMC), FCC |
HamRadioShop | Linear amplifiers
