Steve builds a simple SWL antenna tuner that pairs brilliantly with the Belka-DX | The SWLing Post
MFJ-1024 Antenna
SW Receiver Preselector Circuit
London Shortwave: Dealing with urban radio interference on shortwave
Simple Tuned HF Preselector
Preselettore d'antenna per Radiofari --------- da 100-500kHz - Benvenuti su OfficinaHF!
MFJ-959C - 1,8-30 MHz Sintonizzatore antenna SWL, SWL con preamplificatore 1,6-30 MHz EUR 242,84 - PicClick IT
MFJ 1022 SWL Indoor Active Antennas - Whip/wire - preselector Indoor Receive Antenna Type - 300 kHz - 200 MHz Receive Frequency Range - Free Shipping on Most Orders Over $99 at DX Engineering
A Passive Tunable HF Preselector – Dave Richards AA7EE