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3-way RX small splitter in BOX 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. Both impedances 50 or 75 Ohm can be selected by the jumper.



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Applications
Splitter
Schematic
PCB
KIT Assembling
Part list
Transformers
Product details


Applications

RX antenna splitter for the three RX

3way splitter small


RX antenna combiner for 3el Beverage array

3way small splitter


Splitter

3way small splitter in box assembled qro.cz hamparts.shop



2way small splitter assembled qro.cz hamparts.shop


Schematic

3way small splitter pcb v0.2




PCB

3way small splitter pcb v0.2




KIT Assembling

3way small splitter kit qro.cz hamparts.shop




Part list

NAME PART VALUE
C1 capacitor THT 68pF/100pF 100V
R1 - R9 resistor THT 200R / 0.6W
R10 resistor THT 18R / 0.6W
tr1, tr2 binocular BN-73-6802
tr3, tr4 binocular BN-73-202
JP1 - JP3 jumper jumper
1 - 3, I/O connectors SMA
Wire wire 0.35 mm wire
silicone tube tube silicone sleeving for binocular



Transformers

- There are two long (tr1, tr2) and one short (tr3) binocular ferrites
- All three ferrites have got 2 turns - with bifilar winding

- Clean coating from the ends. Place wires in right order like on the pictures
- Check it again :)

transformer core ferrite qro.cz hamparts.shop

transformer core ferrite qro.cz hamparts.shop

transformer core ferrite qro.cz hamparts.shop

transformer core ferrite qro.cz hamparts.shop

transformer core

transformer core

Cut 4 wires (for two long binocular) to about 210mm (21cm) - 0.69 feet

transformer core cu wire



Cut 2 wires (for one short binocular) to about 160mm (16cm) - 0.52 feet

transformer core cu wire



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

transformer core cu wire

transformer core cu wire

transformer core cu wire

transformer core cu wire

Transformers

- There is one short (tr4) binocular ferrite
- This ferrite has got total 3 turns by one wire
- Start with two turns, add tap and one turn
- Clean coating from the ends. Place wires in right order like on the pictures
- Check it again :)



Cut 1 wire (for one short binocular) to about 160mm (16cm) - 0.52 feet

transformer core cu wire



transformer core winding by qro.cz hamparts.shop

Product details

Included in package

Splitter assembled and tested
4pcs self adhesive feet pads - image

Box dimensions (mm) 58x50x24 mm - al box
PCB dimensions (mm) 50x50.4 mm
Weight brutto (kg) 0.12 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:

3-WAY SMALL SPLITTER IN BOX

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

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