With the MBD-8E it is possible to operate with one antenna
for the transmission and another one for reception. The
commutation of the antennas is automatically made when
the MBD-8E receved the "Send" information from
The split is automaticly engaged when you select an antenna
set up for recieving only, not allowing it from transmission.
The memorization is automatic, just press a push button
of the desired antenna. Any one of the eight antennas
can be used in any or all the bands. Whenever the radio
will power ON or change the band, the last antenna chosen
for that band will be set automatically.
The MBD-8E received from transceiver the power supply
(13.8VDC), the "Send" line and the information
about the band in use. The controller MBD-8E recognized
the follow information about the band in use:
1- D.C. level (Icom)
2- CI-V (Icom)
3- BCD (Yaesu)
4- RS-232 (Kenwood, Yaesu, Icom)
Frequency Segmentation of antennas:
The MBD-8E allows frequency segmented antennas of short
band. In such a way, the antennas that have a box for
commutation of segment, can be commanded automatically
by the MBD-8E. The commutation frequencies are selected
and programmed by the user in very easy way and are recorded
in not volatile memory.
Command output for the RS-34:
The MBD-8E has the command output to the rotator switch
RS-34. On the front pannel there are four LED´s
to indicate the rotor in use at the moment. The programming
to associate the rotator to each antenna is one easy job
made by the user in a couple of minutes. This configuration
is saved in a not volatile memory.
|Exemple of four rotators controled
|Remote operation: Using RS-232 you can connect the
MBD-8 to a computer to read status and operate all
of it's functions.
|16 antennas solution
|Connection example using
|MDB-8E Connection suggestion:
8 antennas and 4 radios