4-way beverage antenna system with controller, BPFs and preamp
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
- Broadband 0,2 MHz - 30 MHz
- Bi-directional - two directions with one beverage antenna
- Low noise
- Twinlead or open wire line
- 50/75 ohm feed line version
- Two construction versions
- Antenna element in the air
- Antenna element on ground = BOG Construction and classic vs. BOG
- ONE coax output to 4-way middle switch.
- One coax version is switchable by positive voltage (+12V) - negative voltage on request.
- Common-mode coax choke included. Compare to others on market
- Electrostatic protection with glim lamps.
- Stainless connections screws.
- Quality PTFE SO-239 or F connector.
- IP56 box. Recommended to protect it against water and snow.
- Size 10x10 cm (feeder), 5x6 cm (terminator).
4-way beverage switch More: link
- Broadband
- High voltage protections
- 50 or 75 ohm feed line versions
- Common-mode coax choke included for OUTPUT coax
- Electrostatic protection with glim lamps.
- Stainless screws.
- Quality PTFE SO-239 or F connector or N on request.
- IP56 box.
- Size 10x10 cm.
Parameters:
- Control voltage up to 15 V AC/DC
- Switch is controlled by - 12 V DC or AC
- Maximal current up to 300 mA
- Insertion loss less than 0,5 dB
- Common-mode current choke with isolation over 30 dB at output port
Controller
- Universal box for K9AY or 4-way Bi-Dir beverage system Front panel
- 4-way beverage system can have 4 construction positions in the field Manual
- Four direction switch
- LED direction indicator 0 or 45 deg. Picture
- Three BPFs and Bypass - 4 positions switch on the front panel.
- Ext RX ANT switch for TRX
- Internal PCB with BPFs and preamp
- RX SOURCE switch. Selecting TX or RX antenna for receiving. More: Picture and Manual
- Preamplifier switch and LED indicator.
- POWER SUPPLY MUST BE 12V AC not DC.
- Three BPFs for 160m-80m-40m and bypass. Picture
- High IP3 preamp with 2N5109.
- Variable ATT allows set gain of preamp.
- In/OUT protections.
- Parameters:
- Power supply 12-14 V AC!!! With DC power supply you will not be able to switch directions over the coax line.
- Power supply current up to 500mA.
- Gain: variable from 0 to 18 dB.
- BPF with additional notch filters.
- RX IN/OUT protections.
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 |
 CMCC 1 to 3 port |
Download
| Controller | ||||
|---|---|---|---|---|
| Front panel | sch  |
pcb  |
KiCAD395 | |
| Internal BPFs+preamp | sch  |
pcb  |
KiCAD331 | |
| RX way switching | sch  |
pcb  |
KiCAD371 | |
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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 |
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