ACOM 3x2000A 5000 W combiner
Passive HF power divider/combiner for three linear amplifiers, 1.8–30 MHz, 5000 W PEP or continuous carrier
The ACOM 3x2000A is a passive HF power divider/combiner that sums onto a single load the outputs of three linear amplifiers driven by a single exciter. Operation is identical to that of a single amplifier three times as powerful.
Product description
To work properly it requires three outputs with equal amplitude and phase, i.e. three coherent signals: these are obtained with three identical amplifiers. The best results come from three automatic ACOM 2000A; manually tuned amplifiers with an accurate tuning indicator also work well, such as the ACOM 1200, 1000, 1010 or 1011, which thanks to their broadband input show minimal phase differences.
An automatic protection circuit monitors the three outputs during operation. In case of imbalance it reduces the drive to the amplifiers and switches the transceiver output to an internal 50 Ω dummy load; until it trips, the imbalance power at input and output is dissipated in power resistors. Once the problem is solved, operation resumes by pressing RESET.
Key features
Combined onto a single antenna.
PEP or continuous carrier.
Internal dummy load in case of imbalance.
Technical specifications
| Coverage | 1.8–30 MHz continuous |
| Output power | 5000 W PEP or continuous carrier with SWR < 1.3:1 · linear reduction down to 2500 W at SWR 2:1 |
| Impedance | 50 Ω unbalanced, UHF connectors (SO-239) |
| Input SWR | < 1.3:1 over 1.8–30 MHz, with no tuning or switching |
| Power supply | 100–240 V via 12 V wall adapter (supplied) |
| Dimensions | 210 × 325 × 195 mm (W × D × H) |
| Weight | 6.4 kg |
| Operating environment | 0…+50 °C, humidity up to 95% at 35 °C |
Package contents
- ACOM 3x2000A combiner
- 12 V wall power adapter
HamRadioShop | Linear amplifiers
