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K9AY one direction

This K9AY one direction is ideal for SO2R and Multi/Multi. Sharing one direction into more receivers. Also easy to phasing it into the array.

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57.09 € (tax excl.)
57.09 € without tax
69.08 €
connector
  • F
  • PL
Brand:
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Description

The K9AY is RX loop antenna terminated by the resistor. This is ONE direction antenna with no directional switching relay. Impedance matching transformer is connected from one end of the loop to the ground and load resistor is connected the other end of the loop to the ground. Favoring signals are arriving from the feed point end. You can set different values by the jumpers. There is also common-mode current choke. This antenna is designed for SO2R of M/M setup - you can share this one direction to the more RX.


Using

  • RX antenna designed for ONE direction
  • Easy to share it by the RX antenna switch
  • Designed for RX antenna array: End-Fire, Broadside
  • Noise source antenna for QRM eliminator

Main functions

  • Broadband - 0.2 to 30 MHz
  • 1 direction about 110 deg.
  • Designed for Multi-Receivers - sharing direction
  • Needs small room
  • Great for portable operations
  • Ideal for Broadside or End-Fire antenna array
  • 50 or 75 Ohm feed line - jumper switch inside
  • Common-mode coax choke included
  • Variable Rload in 8 steps by the Jumpers
  • High voltage electrostatic protection with neon lamps
  • High power IN/OUT protection with PTC
  • High quality connectors
  • Stainless screws
  • IP56 box - recommended to protect it against water
  • Feeder size 100x100 mm
  • ASSEMBLED VERSION

Parameters

  • RX antenna - Gain depends on loop size
  • One direction about 110 degrees
  • F/B depends on loop size and construction
  • Find more design hints (phased array)
  • Feed line impedance 50 or 75 Ohm
  • Common-mode choke isolation more than 30 dB
  • Current protection > 100 mA and Voltage protection > 65 V


Available as

ASSEMBLED: ready to use
Connectors: PL SO-239 or F

Manual

If you want to know more please check our wiki with K9AY one direction manual.



version with PL SO-239 connectors

k9ay one direction pl so-239 assembled qro.cz hamparts.shop



version with F connectors

k9ay one direction  f assembled qro.cz hamparts.shop



example of use K9AY one dir for multi RX

7ant modular switch k9ay one direction bi-directional beverages so2r multi multi rx antenna qro.cz hamparts.shop



example of K9AY phased array

k9ay phased arrays example qro.cz hamparts.shop

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Product Details

Data sheet

type
ASSEMBLED
design
in enclosure
usage
RX
impedance
both 50 & 75 Ohm
front-end protection
input
frequency range
0.2 MHz to 30 MHz

Specific References

ean13
1000090107220
Attachments
k9ay how to build
pdf file about how to build the K9AY loop receiving antenna by Gary Breed, K9AY
Download (56.69KB)
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