Great PAs, great price, great service. Good for any RF/Comm/Test applications. Product: Many of Shenzhen Zd Tech's products in this line are marketed as anti-UAV systems, and I'm sure they're very effective. However, for non-EW applications you can buy just the PA without the (anti-UAV) signal generator. - The amps have great dynamic range and a very clean signal, including lower-power ranges of 5W-20W. - The provided test videos of my units showed actual max output 2dB over spec, not planning to try that myself! For SDR and Test Equipment applications, be sure your RF-in is well-calibrated. Service: Bree at Shenzhen Zd Tech was very helpful with the process of ordering the just-the-amps with the connectors I needed. Good transparent communications with the tech staff about the production and test stages. Price: very competitive, compare for yourself. Quality: very high.

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