NuWaves Engineering has expanded its High Intercept Low Noise Amplifier (HILNATM) series with the HILNA HF. The HILNA HF covers the frequency range of 2 to 50 MHz, offering 30 dB of gain with commandable AGC. The amplifier sports a miniature form factor of about nine cubic inches. NUWAVES ENGINEERING, Middletown, OH. (513) 360-0800.