The Kiwa Shortwave Preamp is a high performance preamp optimized for the SW frequencies. The Preamp is designed to connect between the antenna and receiver to provide additional gain to signals within the shortwave spectrum.
Impedance matching to any type of antenna is provided with the high and low impedance inputs.
The preamp also includes the Kiwa BCB Broadcast Band Rejection filter at the preamp input. The filter will virtually eliminate any possibility of distortion or interference within the shortwave spectrum from strong broadcast band signals. The preamp is housed in a cast aluminum enclosure The SW Preamp is ideal for receivers that lack an internal RF Preamp. Such a receiver is the Lowe HF-150. Bench measurements of the HF-150 showed that the receiver's Noise Figure is 12 dB. By adding the SW Preamp, the combined Noise Figure measured 6.5 dB. The result is an extremely quiet receiver.