This product includes four independent bandpass filters, which are divided into four frequency bands.
P1 filter is 0.5-1.5, suitable for Medium radio listening use.
The P2 filter is 4.5-12, suitable for use in the Short low frequency band and the 40 meter amateur frequency band.
The P3 filter is 12-30, suitable for use in the short high-frequency band, as well as in the amateur frequency bands of 20 meters, 15 meters, and 10 meters.
The P4 filter is for FM broadcasting frequency, 88-108.
وصف
The four in one filter can be used with a one to four source splitter, providing pre filter function for SDR, radio, and receiver, implement multi-channel and multi-band simultaneous reception.