4-way beverage antenna system with controller, BPFs and preamp

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This antenna consists of 2 x Bi-dir beverage sets, 4-way antenna switch and controller. That all allows you to have 4 directions beverage antenna system with only one coax line from field to the controller. Controller have got internal PCB with 3 BPFs, preamp and protections. There is also RX ant switch for TRX which does not have input for RX antenna. More in manual.

Main functions:

Bi-dir beverage atenna - ONE coax output More: link

4-way beverage switch More: link



Controller block diagram:

K9AY comparation

K9AY controller block diagram

Band Pass Filters characteristic:

160m BPF

80m BPF

40m BPF

Band Pass Filters characteristic with preamplifier:

160m BPF with preamp

80m BPF with preamp

40m BPF with preamp

BYPASS with preamp

Option - Common-mode current choke to ham shack:

Link to CMCC


CMCC 1 to 3 port


Front panel sch pcb KiCAD270
Internal BPFs+preamp sch pcb KiCAD205
RX way switching sch pcb KiCAD224
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