HE383B-2L/HEM383B-2L integrated broadband amplifier has a working frequency range of 20~600MHz, low noise, good 50Ω impedance matching, easy to cascade, and meets military working conditions of -55℃~+85℃.
The HE383B-2L and HEM383B-2L are integrated broadband amplifiers covering 20‑600 MHz with low typical noise figure of 1.7 dB, good 50 Ω impedance matching, and a sealed metal housing. They operate from –55 °C to +85 °C and accept a supply voltage up to +16 V.
The manual lists detailed performance parameters such as small‑signal gain (10‑30 dB, flatness ±0.5 dB), VSWR (1.3:1‑2:1), output power around 24 dBm, and maximum input power of +18 dBm. It also includes connection guidelines, recommended input capacitance values, and notes on static sensitivity and SMA‑type connector packaging. This manual is written in Chinese.
| Frequency range | 20‑600 MHz |
|---|---|
| Typical noise figure | 1.7 dB |
| Maximum input power | +18 dBm |
| Output power (typical) | 24 dBm |
| VSWR | 1.3:1‑2:1 |
| Supply voltage | +16 V |
| Small‑signal gain | 10‑30 dB |
| Gain flatness | ±0.5 dB |
| Input capacitance options | 3.3‑22 pF, 3300‑6800 pF, 1000‑10000 pF |
It operates from 20 MHz to 600 MHz.
The typical noise figure is 1.7 dB.
The maximum input power is +18 dBm.