Page. 14 of 87
4.1 SO2R (Single Operator Two Radio )
This kind of operation is used during a contest in order to acquire, as quickly as possible
for example, a new multiplier.
The following connections are needed (see the diagram):
1. INPUT 1 connected to the first transceiver (RTX1).
2. INPUT 2 connected to the second transceiver (RTX2).
3. ANT 1/2/3/4 connected to the available antennas set.
4. SO2R connected to a multi-band antenna.
The operating mode could be the following:
If you are operating using RTX1 on a given band (e.g 20m), the correct antenna (ANT
1/2/3/4) is automatically selected for transmitting, while RTX2 is connected to the multi-
band antenna, in the RX mode, on another band (e.g. 40m).
If, when operating on 20 m, a multiplier of interest is heard on RTX2, the only action
needed is to push the PTT2 in order to connect RTX2 to the 40 m main antenna, at the
same time RTX1 gets switched to the multiband antenna in order to receive the 20 m
band.
In place of the multiband antenna one of the antennas ANT 1/2/3/4 can be used, in
such a case all of them must be monoband to avoid the risk of using the same antenna
for RTX1 and RTX2..
A careful design is needed to avoid such a harmful situation which could be devastating
for the receivers.
This possibility is available with the optional external unit "SPE SO2R1" according to the
following diagram.
To Next Page
