The Alpha 4510 is a laboratory-grade directional wattmeter that gives accurate measurements of RF power and SWR, with auto-ranging of power from a few milliwatts up to 3kW. The meter's manufacturer, Alpha Radio Products, is a respected US company that makes amplifiers for both the amateur and professional markets, and this wattmeter is primarily intended for professional use. That places it at the very top of the amateur market, where it competes with the Array Solutions PowerMaster system, reviewed by Chris Lorek in last February's Radcom.
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机译：Alpha 4510是实验室级定向功率计，可精确测量RF功率和SWR，功率范围可从几毫瓦自动调整到3kW。仪表的制造商Alpha Radio Products是一家受人尊敬的美国公司，为业余和专业市场制造放大器，该功率计主要用于专业用途。 Chris Lorek在去年2月的Radcom中对它进行了评测，从而将其置于业余市场的最高端，与Array Solutions PowerMaster系统竞争。
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