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DOUBLE SWITCH (2 to N)
Rules
The most obvious difference between a
Double Switch and Single Switch is that
the Double Switch has two Frequency
Ranges and all other parameters. This is
because the parameters apply to each R
port of the RF BOX.
IMPORTANT: Rules are always
referenced to the RF BOX's R
port, not to RF BOX globally. Each
R port can have own rules of
behavior.
IMPORTANT: The control box for a double switch must control both R ports from within one relay unit.
Switching
As shown in the picture, the switching
table has additional column. Each R
port has own set of InVectors. The
relationship between output states and
InVectors is always considered for both
both R ports because they are used for
different antenna paths. They can be
used by the same SMD for separate RX2
and TX antenna selections or by two
SMDs, each connected to different radio.
Both InVectors are controlled from one
Control box – a relay unit of as many
outputs as are needed for full control of
the RF box. Both R ports of the Double
Switch are handled together in order to
identify and prevent possible collision in
advance - before antenna path is even
created.
microHAM © 2016 All rights reserved
Double switches are special safety switches, originally designed for connecting two
radios to several antennas. In our language, these are switches with two (2) R ports and
several A ports. By design, the two R ports can not simultaneously select the same A
port.
microHAM provides two versions, Double Six Switch with six antenna ports and Double
Ten Switch with ten (10) antenna ports.
Settings on the sub-tabs are similar to Single Switch, so we will focus on what is
different.
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