User's Manual

1.2.2 Protection Circuits

There are several protection circuits used in the amplifier. They are activated when one

or more of next parameters exceed defined values or some unwanted occasion occurs.

• VSWR too high

• Anode current too high

• Anode voltage error

• Screen current too high

• Screen voltage error

• Grid current too high

• Grid voltage error

• Heating voltage error

• Mistuning of PA

• Temperature to high

• Soft start for fuses protection

• “switch-on blocking “ at opened amplifier

1.2.2. Features

Manufacturer implemented some of the company’s newest development results with most

wanted operating and safety features into this new model:

• High level of protections

• Memory for faults and warnings, easy maintenance

• Automatic set-up anode current (BIAS) – no need to adjust manually after changi

the tube

• Three programmable working modes of centrifugal blower ( turbine ) + axial blower

• Full QSK with silent relay

• Many operational parameters to display

• Easy transport due to detachable HV transformer

• The smallest and lightest 2000 W PA on the market

1.2.3. The Advantages of OM2000A+

• Full compatibility with: ICOM, ELECRAFT, KENWOOD, TEN-TEC ORION, YAESU

and Icom transceive protocol using by MicroHAM devices ( CI-V output ), FLEX

Radios and Anan

• Automatic switching between bands

• Automatic tuning within the band according to segments

• Automatic switching of Band Pass Filter

• Automatic switching of Antenna switches

• Remote control possibility (remote software as accessory – no extra price)

• The Power Amplifier is HF sensitive (automatic frequency reading even if no CAT)