You KNOW that every kit company sells some sort of broadband preamp for all purposes. If you want to try a broadband, untuned RF preamp on any receiver or scanner or other instrument, THIS one is your best buy! Excellent noise figure, gain and frequency coverage at a BUDGET PRICE. Up to 18.5 dB gain at 100 MHz. 17 dB gain typical at 500 MHz. Supply voltage: 8-14 VDC.