KIT of antenna four to one switch by OK2ZAW

Main functions:

• Four outputs to one input.
• Frequency range DC-30 MHz
• Characteristic impedance 50 ohm
• Power rating DC to 30 MHz
  • 4 kW continue wave
  • 7.5 kW PEP (SWR < 1:1.7) (tested with tsunami)
  • Designed for OM-power OM-4000++ PA style
• High quality PCB thickness 2 mm
• Relay 12 Volt
• Connectors PL-259 female with gold plated.
• Power consumption < 3W.
• Disconnect outputs are shorted.
• PCB size 170 x 91 mm

KIT 4-to-1 antenna switch with high quality PTFE SO-239 connectors includes:

• 1x PCB 2mm FR4
• 5x High quality PTFE SO-239 connectors for High Power
• 12x 16 A (2x8 A contacts) relays
• 4x diode 1N4007
• 4x LED 3mm diode
• 4x Capacitors
• 4x Varistors
• 4x Resistors
• 3x Wago connectors
• 1x Cu wires
• 12x Screws, nuts, distances...

Examples of measured values

The measured values

VSWR	Insert loss	Isolation 1to4	Isolation 1toOUT
Schematics

Download

Antenna switch
4 to 1 QRO, version 5.0	pcb	sch	497
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 Attribution-NonCommercial 2.0 Generic