This is the manual for the MK2 version of the three BPF board, which can be configured as an RX Triplexer - splitter/combiner or three independent BPFs. You can use this filter board to split one RX antenna into three different bands, also combine three single band antennas into one output - CW/RTTY/DIGI skimmer. In a configuration of three individual BPFs, the board is used to filter three bands. It can be used to increase the sideband suppression in RX Triplexer.

Jump to

Application
Jumper settings
Measurements
Product details

Application

The function is explained in the block diagrams. Using the Jumpers, the board can be configured as an RX splitter or combiner or as three independent Band Pass Filters.

Jumpers settings

There are block diagrams that explain the possibilities of the functions.

By connecting jumpers on the INPUT filter side (SHORT) you can combine 2 or 3 filter inputs into one. You can then use one of the three SMA's (if all 3 filters are connected). Do not SHORT the jumpers on the NOTCH side.

If you leave the jumpers on INPUT open (OPEN), the board works as three independent bandpass filters

By connecting two boards behind each other you can increase the insulation of adjacent bands. The boards must be connected laterally with NOTCH FILTERS.

Measurements

RX Triplexer 160m

RX Triplexer 80m

RX Triplexer 40m

3BPF - single bandpass filters 160m

3BPF - single bandpass filters 80m

3BPF - single bandpass filters 40m