Instruction manual

74
5.1.2 Selecting the radio channel
The following units are equipped with a radio modem:
• WMU-1, WMU-2, WMU-3
• URM-1, URM-2, URM-3
• LDB-ST, LDB-ST-2, LDB-LT, LDB-LT-2
• UMC-3.
The radio modems of the "-1" series are not compatible
with the radio modems of the "-2" and "-3" series.
Comatible are:
• URM-1 with the WMU-1 and LDB-ST and LDB-LT, or
• URM-2 / URM-3 with the WMU-2, WMU3 and
LDB-ST-2 / LDB-LT-2, and UMC-3.
The two kinds of radio modems utilize a very different
method of transmission. With the modems of the "-1" series
a specific subband is selected with the remote channel switch.
Whereas with the "-2" and "-3" series radio modems a specific
scheme of constantly changing frequencies is selected, making
the connection between the different radio units a lot more
robust against interference. The even channels on the remote
channel switch (numbers 2, 4…) utilize the upper half of the
bandwidth (2444 - 2472 MHz) while the odd numbers use
the lower frequencies (2406 - 2435 MHz).
To establish a connection between one or more Wireless Main
Units (a maximum of three per radio channel is possible),
the WMU must be set to the same radio channel as the
receiving URM, UMC-3 or LDB.
If several lenses are to be remotely controlled independently
of each other with radio modems of the "-1" series, each
URM-1 or LDB-ST/LDB-LT used must be set to a different
channel. The following radio channels can not be used
simultaneously:
• radio channel 0 and 5
• radio channel 1 and 6
• radio channel 3 and 7.
It is not possible to control two URM, UMC-3 or LDB units
with one Wireless Main Unit.
Note: In case two remote systems with the "-2" or "-3"
series modems are on the same set, it is re-
commended to set one of the systems to an
upper (even) channel and one system to a
lower (odd) channel number.
Operation