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CONTROL CIRCUIT The amplifier is controlled by a pic controller which monitors all aspects from voltage, current, power,swr to temperature.

Simple user interface JUMA PA1000 is easy to use.

5-22 MHz coverage, instant bandswitching, no warm up, no tubes to baby, fully SWR protected, extremely quiet, very compact -Ameritrons revolutionary ALS-600 is amateur radios ONLY linear amplifier that uses four rugged TMOS RF power FETs - gives unequaled no tune solid state performance.

ALS-600 600W for a solid-state amp.

A wide range of monitoring functions are displayed, including power output, PA drain current, VSWR, band and antenna in use and heatsink temperature As with other Linear Amp UK designs, there is no provision for ALC, as this is a major cause of bad signals.

A single input and three selectable antenna output connectors are provided.

Following modern industrial practice, the Gemini HF kW employs full touch-screen control using a 480 x 272 pixel 108mm mm full colour TFT display.

each one has its pros and cons.

Battery power - Battery power uses a lithium-ion compound so that amplifiers can store their own energy source.

Common batteries, such as those titled D and AA, are used for powering some devices, but you also have rechargeable Bluetooth options.