F connector “in line” grouped filters. 5MHz to 694MHz, i.e. through FM and DAB, then TV channels 21 to 48 (K group).
Also suitable as a high efficiency 4G/5G filters.
Through loss is 1dB or less, but rising to to 2dB+ “on the shoulder” (see article on filters)
Out of band rejection 20 to 30dB+.