Antenna one to three STACK MATCH by OK2ZAW

Can be controlled by:


remoteqth server band-decoder order
StackMatch is designed to stack, match and power split to one,
two or three antennas or to split driving power into more PAs for the multibeaming.
It will provide the user with all combinations of antenna selection.
Could be controlled independently for RX and TX - depends on controller.
Works with Mono-band antennas as well as Tri-band and Multi-band antennas!

Main functions:

Three versions:

Three versions:

Low

Medium

High Power
Power handling * < 750 W < 3 kW < 5 kW
Frequency range 1,8-30 MHz 1,8-30 MHz 1,8-30 MHz
Characteristic impedance 50 ohm 50 ohm 50 ohm
Relay version 5 or 12 V 5 or 12 V 5 or 12 V
PCB thickness 1,6 mm 2 mm 2 mm
The measured values:
VSWR

IN
to
ANT1
VSWR

IN
to
ANT2
VSWR

IN
to
ANT3
VSWR

IN
to
ANT1 + ANT2
VSWR

IN
to
ANT1 + ANT2 + ANT3
*) Normal CW, SSB, RTTY DX operation. In contest mode: CW, SSB 75% and RTTY 50% of HF power.

Matrix table

Stack match Inputs
Selected A1 A2 A3 Balun
A1 + - - -
A2 - + - -
A3 - - + -
A1+2 + + - +
A2+3 - + + +
A1+3 + - + +
A+1+2+3 + + + +
+ 12 or 5V / - NC

Download

Stack match
High Power v5.1 eagle196
Low & Medium v2.0 pcb sch eagle1190
High Power v1.0 pcb sch eagle1169
Open-Hardware
We believe open source is a better way of doing things.
View and download the Shield Schematic and PCB Eagle CAD files.
The hardware designs are released under the
Creative Commons Attribution-ShareAlike 4.0 International License

Design & code ok1hra | Copyleft 2013-2017 | License