2-way RX small splitter manual

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.

Applications

RX antenna splitter for the two RX

RX antenna combiner for 2el Beverage array

RX antenna combiner for 2el end-fire array

Splitter

Schematic

2way small splitter pcb v0.3

PCB

2way small splitter pcb v0.3

KIT Assembling

Part list

NAME	PART	VALUE
GL	neon lamp	lamp 65V AC
C1	capacitor	THT 100nF 100V
C2	capacitor	THT 68pF 100V
PTC	PTC fuse	THT 100mA to 500mA
R1	resistor	THT 100R / 2W
R2	resistor	THT 150R / 2W
Transformator	binocular	BN-73-6802
Wire	wire	0.35 mm wire
SMA	connectors	SMA

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 :)

transformer core

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

transformer core cu wire

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

transformer core cu wire

Product details

Included in package

Splitter assembled and tested or all parts for KIT version

PCB dimensions (mm)	50x50.4 mm
Weight brutto (kg)	0.07 kg

Manufacturer:

Ing. Jan Šustr
ID 05476356, VAT CZ8407024780
Palachova 1777/7, 591 01 Žďár nad Sázavou, Czech republic, Europe

General instructions:

Please also read general instructions before handling the product.

European Union Declaration of Conformity

Manufacturer Ing. Jan Šustr (QRO.cz):

ID 05476356, VAT CZ8407024780
Palachova 1777/7, 591 01 Žďár nad Sázavou, Czech republic, Europe

declares that the assembled product:

2-WAY SMALL SPLITTER

is compatible with the relevant Union harmonisation legislation directives:
EMC Directive 2014/30/EU
ČSN EN 61000-6-3 ed. 2
ČSN EN 61000-6-1 ed. 2 (333432)

On behalf of Ing. Jan Šustr (QRO.cz)
Ing. Jan Šustr, CEO
1st January 2023