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K9AY/4-WAY Antenna Switch Controller MK2

This is an interesting antenna controller with built in BPF, preamp, protections, bias tee, RX/TX antenna switch and much more. It is designed for K9AY (and similar loops) and for the four-way Beverage system. Controller allows Remote control connection.

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333.96 € (tax incl.)
333.96 €
276.00 € (without tax)
in stock, shipped in 2-3 days

Price history     Price history

The lowest price in the 30 last days was 333.96 €

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Description

Universal control box for receiving antenna such as K9AY and bi-directional Beverage. The control box provides directional switching with LED indication - four directions with N-S-E-W or NW-NE-SE-SW options. Potentiometer to control output voltage for the ability to change load resistance - Rload. BPD for 160, 80 and 40m bands, high dynamic range preamplifier with gain control. Switch to select listening from TX or RX antenna. Built-in bias tee for sending voltage over coaxial cable or DC voltage from rear panel connectors.

The control box allows a remote control unit to be connected for remote control. When in remote control mode, the front panel controls are disabled, but the LED indicator remains active.

Built-in 100 kHz HPFs that eliminate the problem of AC voltage being used to switch directions over the coaxial cable.


Main functions

  • Universal box for K9AY or 4-way Bi-Dir beverage system - front panel image
  • 4-way beverage system can have 4 construction positions in the field - more info in manual
  • FOUR direction control
  • Control via coax or DC cable
  • Including Bias Tee AC/DC for control over coax
  • HPF > 100 kHz as AC noise eliminator (80 dB at 20 kHz)
  • Front End protections
  • RF power limiters in RX line
  • LED direction indicator 0 or 45 deg. - image
  • Three BPFs and Bypass - 4 positions switch on the front panel
  • Load resistor (Rload) potentiometer at front panel
  • Different Rload for remote control - by band - manual
  • High dynamic preamplifier with gain control
  • RX SOURCE switch - selecting TX or RX antenna for receiving - More info: image and manual
  • Preamplifier switch and LED indicator
  • POWER SUPPLY MUST BE 12V AC for control over the coax
  • LED indicator LOCAL/REMOTE - image
  • Stainless screws and nuts
  • High quality connectors
  • DC plug included
  • ASSEMBLED and TESTED VERSION

Remote Control Notes

  • There is NO IP/web based remote control inside the box. RJ45 connector is only for DC voltage between controller and feeder. Remote Control can be done by the DB15M connector at the rear panel. When you apply +12 to +14 V DC to direction pin at this connector, relay automatically deactivate front panel switches and you can control it over these external voltages at DB-15M Remote Control connector. All LED indicators still work. Please, read the manual.
  • Please, have a look at our Remote controllers - blog post Remote System.
  • We offer now two IP controllers: OLI IP 12 and powerful REMOTIUS 64.

Parameters

  • Frequency range: 0.1 to 30 MHz
  • Band Pass Filters: 160m, 80m and 40m
  • High dynamic range preamp
  • Gain: up to 18 dB - preset to 10 dB
  • Noise Figure (NF) < 2 dB
  • REAL IOP3 34 dB
  • Supply supply 12-14 V AC! min. 1.5 A With DC power supply you will not be able to switch directions over the coax coax
  • BPF insertion loss lower than 1 dB
  • Bias Tee AC/DC max. 350 mA (for 4-way beverage system)
  • HPF > 100 kHz as AC noise eliminator (80 dB at 20 kHz)
  • TX power from TRX to TX antenna port up to 250 W
  • PTT output - sniffer or FET - image
  • PTT IN/OUT - only loop, no delay, TX to GND
  • PTT logic is 5 V compatible (OM-power)
  • Voltage regulator for changing Rload
  • Remote control Rload - different settings for each band and bypass - manual
  • Easy remote control with external commander

Available as

ASSEMBLED: remote version - ready to use

TO COMPLETE RX SYSTEM: RECOMMENDATIONS TO BUY:

Included in package

Controller assembled and tested
DC plug - image
DB15 male connector with cover
DB15 female connector with cover


Technical articles

Please check our technical articles about REMOTE SYSTEM.


Manual

If you want to know more please check our wiki with K9AY/4-way antenna switch controller manual.



k9ay++ controller MK2 version by qro.cz hamparts.shop



k9ay++ controller MK2 version by qro.cz hamparts.shop



k9ay/4-way controller MK2 by qro.cz hamparts.shop



K9AY/4-way controller classic version block diagram

k9ay controller classic version block diagram by qro.cz hamparts.shop



K9AY/4-way controller remote version block diagram

k9ay controller remote version block diagram by qro.cz hamparts.shop



example for controller with 4-way beverage system and K9AY simply loops switch

k9ay/4-way controller with k9ay simply loops switch and 4-way system by qro.cz hamparts.shop



example of the Remote control version with external IP relays

k9ay/4-way controller remote version example with external IP realys by qro.cz hamparts.shop



Band Pass Filters characteristic with preamplifier

160m BPF with preamp

k9ay++ system measurement qro.cz hamparts.shop



80m BPF with preamp

k9ay++ system measurement qro.cz hamparts.shop



40m BPF with preamp

k9ay++ antenna system measurement qro.cz hamparts.shop



BYPASS with preamp

k9ay++ rx antenna system measurement poty adapter qro.cz hamparts.shop



Remote Control example

We offer two web-based controllers. OLI IP 12, which is directly designed for K9AY++, 4-WAY and 7ANT RC controllers and REMOTIUS 64, bigger controller which could control more parts and offers more outputs.

There is more ways for remote control:
- Classic UI
- Beam Map
- Stream Deck, NodeRed or custom system

remote options by qro.cz hamparts.shop



remote options remotes 64 and OLI IP 12 by qro.cz hamparts.shop



remote control options K9AY/4-way controller example by qro.cz hamparts.shop



remote options control beam map example by qro.cz hamparts.shop



Option: Common-mode current choke to ham shack

cmcc common mode current choke to ham shack by qro.cz hamparts.shop



recommendations to buy rx audite sdr splitter switch by qro.cz hamparts.shop



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Product Details

Data sheet

type
ASSEMBLED
design
in enclosure
usage
RX + TX
impedance
both 50 & 75 Ohm
front-end protection
input
frequency range
0.1 MHz to 30 MHz
product dimensions
220x160x60 mm - al box
product weight (brutto)
1.2 kg
package dimensions
27.5x22.5x9.5 cm
Reviews
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