12x4 modular Antenna switch KIT - scalable on your terms

Main functions:

• Always used one same - three to one - module.
• Put together up to four module expand up to 12 inputs.
• Available add same module to next layer for next outputs (more second outputs).
• Additionally expandable at a later time.
• Using antenna output shows the LEDs.
• Controled by grounded input (default), or high polarity (if soldered reverse all diode).
• Power voltage 12V typicaly, dependency to used relay.
• One module PCB size 85x85mm.
• RF power loading
  • 8A default PCB current (2,7 mm x 1oz)
  • >16A with additional wire soldering
  • 16A switching current

Schematics rev 0.4

Measured values for several configuration

1 TRX ↓	2 TRX ↓	3 TRX ↓	4 TRX ↓
TRX-1 to ANT-11 SWR	TRX-2 to ANT-8 SWR	TRX-3 to ANT-5 SWR	TRX-4 to ANT-2 SWR
TRX-1 to ANT-11 Insertion loss	TRX-2 to ANT-8 Insertion loss	TRX-3 to ANT-5 Insertion loss	TRX-4 to ANT-2 Insertion loss
TRX-1 to TRX-2 Isolation	TRX-1 to TRX-3 Isolation	TRX-1 to TRX-4 Isolation	TRX-2 to TRX-3 Isolation
	TRX-2 to TRX-3 Isolation 3 open (not connected to output)

Download

PCB
rev 0.5		sch	kicad526
rev 0.4	pcb-t	pcb-b	pcb 3D [8,5MB]
		sch	kicad526
Enclosure
DXF	front816	2TRX-rear822	4TRX-rear866
PDF		front765	sticker757
OK1CDJ 3x1 mini box	front.dxf877	rear.dxf808	.scad877
3D-print
Closure unused hole	1.STL839	3.STL766	3D preview
Open-Hardware
We believe open source is a better way of doing things. View and download the Shield Schematic and PCB Kicad/Eagle CAD files, LibreCAD .DXF, or Inkscape .SVG files. The hardware designs are released under the Creative Commons Attribution-ShareAlike 4.0 International License

Users implementation photos

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