Antenna four to one ultimate QRO switch by OK2ZAW

Can be controlled by:

remoteqth server band-decoder order

Main functions:

The measured values


Insert loss

Isolation 1to4

Isolation 1toOUT


Antenna switch
4 to 1 QRO, version 1 pcb sch eagle1256
We believe open source is a better way of doing things.
View and download the Shield Schematic and PCB Eagle CAD files.
The hardware designs are released under the
Creative Commons Attribution-ShareAlike 4.0 International License

Users implementation photos


Design & code ok1hra | Copyleft 2013-2017 | License