The splitter or combiner is a very useful device. It can provide equal voltages, equal current, or equal power to matched or unmatched loads. Like all passive splitters and combiners, this device is less than ideal. Isolation is maximum only when at least one port are properly terminated. In this case isolation between the two splitted/combinated ports is maximum when the main port is properly terminated.

NOTE: This HW is designed only for RX line. There are some more high current and voltage protections on all ports. Both impedances 50 or 75 Ohm can be selected by the jumper.

Jump to

Applications
Splitter
Schematic
PCB
KIT Assembling
Part list
Transformers
Product details

Applications

RX antenna splitter for the two RX

RX antenna combiner for 2el Beverage array

RX antenna combiner for 2el end-fire array

Splitter

version with PL SO-239 connectors

version with F connectors

There are adapters for F connector version
It is than very universal thanks to 50 / 75 Ohm jumper

Schematic

PCB

version for PL SO-239 connector

version for F connector

KIT Assembling

version with PL SO-239 connectors

version with PL SO-239 connectors and adapters PL to F

version with F connectors

Place PCB into the cover of the box

Select a few holes and mark them - PL SO-239 connectors

Select a few holes and mark them - F connectors

Carefully drill holes, use 3mm borer

Mirror the PCB and place it back to the cover

Use screws and nuts to fix it

Carefully drill holes with 3mm and 5.5mm borer

Mount connectors

Assembly all the rest parts and transformers

Part list

Transformers

- There are two binocular ferrites
- Both ferrites have got 2 turns - first with bifilar and second with trifilar winding
- Clean coating from the ends. Place wires in right order like on the pictures
- Check it again :)

Cut all wires to about 210mm (21cm) - 0.69 feet

Make bifilar and trifilar wires - you can use small PVC tube and ACU drill