microHAM STATION MASTER Manual page 56

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Antenna Groups tab
In order to take advantage of the automatic receive scan, For use of special advantage of the grouped antennas
as automatic receive scan has been created two groups of antennas, one for 160m and second for 80m CW.
The 160m group is intended for use in contest when responses to a CQ can arrive from any direction (local
stations are much stronger on vertical), but it is also possible to be called by DX which must be received on the
4SQ. The vertical antenna has been assigned twice at the top of the group to extend the initial receive time on
vertical. The same technique can be used for any antenna in group if unequal times are required for the
antennas.
The 80m CW group is intended primarily for DX in the NW direction. Again, the receive 4SQ has priority and is
doubled because most stations are heard on this antenna. However, when the band is closing the low dipole
generates a stronger signal so it is also scanned.
Antenna groups are most useful in receive with split RX/TX configurations.
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