This 4-way beverage antenna system consists of two Bi-dir beverage sets, 4-way antenna switch and controller. That all allows 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 antenna switch for TRX which does not have input for RX antenna.

Jump to

Controller
4-way switch box
Bi-directional beverage antenna ONE coax output
How to connect it
Where are your feeders? Direction matrix
Options: Recommendations to buy
Product details

Controller - manual page

This K9AY/4-way antenna switch allows you to control:

• simply K9AY (could be only over coax)
• K9AY++ RF box (coax + ctrl cable)
• Bi-dir beverage TWO directions (only over coax)
• Bi-dir beverage FOUR directions with 4-way switch (only over coax)
• You can use some features for more RX antennas.

4-way switch box - manual page

• Middle switch between a pair of Bi-dir beverages antennas

Bi-directional beverage antenna ONE coax output - manual page

• 2 pairs of Bi-dir beverage set (2x feeder box and 2x terminator box)

How to connect it

• There are two Bi-dir beverages in the field
• You can place this pairs as you need
• The example is in 90 deg, then you can receive RX signals from 45, 135, 225 and 315 deg.
• You need one coax from the each Bi-dir beverage antenna. Coaxial cables go to middle 4-way (4 direction) switch
• Then only one coax goes to the controller
• How to prepare it:
• positions of the antenna in fields depends at your possibilities
• it you want to use it in 90 deg cross, then go to next part and select which combination is good for you
• depends on this configuration you need to select right jumpers at the front panel in the controller (open enclosure)
• rear switch at controller must be switched to 4-way position
• enjoy your low band DXing :)

⚠ There are the common-mode current filters which help you to obtain as low antenna noise as possible. But NOT forget to good grounding, NOT only for antennas but also for 4-way switch.

Where are your feeders? Direction matrix

• Everyone has different antenna configuration and also feeders could be on different places
• Controller allows you to set right jumpers and follows your installation - more info in article
• There are all 4 combinations
• Where there are terminators and feeders (Bi-directional beverage)
• Short jumpers for right 4-way Bi-dir beverage orientation - more info in article

⚠ older manual page for serial number < 2022 - more info in article

Options: Recommendation to buy

• It is recommended to add common-mode current choke filter to the ham shack and do isolation between controller and antenna in field
  
• You can buy also D-SUB 15 female 1m cable or D-SUB screw terminal
• Good option is also power supply 13.8 V 30 A analog or digital version

Common-mode current choke

K9AY simply loops switch

OLI IP 12

REMOTIUS 64