HF power amplifier 300W 1.8-30 MHz with transistors SD2933
PA10-300W power amplifier 4-6W in, 300W out 1.8-54 MHz. This device is made for use with low power SDR radios , like ANAN-10, FLEX-1500 or QRP HF transceivers. With 4 to 6 W input power from SDR it runs solid 300W to your antenna. The amplifier's output is not filtered by LPF , so do not forget to add it. This amplifier may be used with QRP transceivers like FT-817 or IC-703 (with automatic band decoder) also.
Active elements are matched pair of SD2933 MOSFET transistors (see schematic) in AB-class. 2-tone measured IMD3 is -40 dBc. Measured by KC901H network analyser suppression of second and third harmonics (amplifier with diplexer) is: 10 meters 2nd -52 dB 3rd -55 dB 20 meters 2nd -54 dB 3rd -47 dB 80 meters 2nd -53 dB 3rd -51 dB.
Power supply required is 48V 12A. Size 165 x 60 x 30(h) mm. The item "HF power amplifier 300W 1.8-30 MHz with transistors SD2933" is in sale since Thursday, December 28, 2017. This item is in the category "Consumer Electronics\Radio Communication\Ham, Amateur Radio\Ham Radio Amplifiers".The seller is "y_r3kbo" and is located in Voronezh. This item can be shipped worldwide.
- Brand: Unbranded/Generic
- MPN: Does Not Apply
- Frequency Band(s): HF
- Country/Region of Manufacture: Russian Federation
- Max. Output Power: 300W
- Supported Modes: SSB
- Amplifier Class: AB1