User Manual

Maximum Frequency The maximum frequency that the unit can work on is
determined by the physical build of the unit and the alignment
of the unit. If a frequency outside the alignment band is
selected then the operation of the SX500 will no longer be to
the stated specification. The maximum switching frequency
over which the unit will operate is 5MHz. The software uses
this 5MHz limit to calculate the maximum frequency from the
minimum set and uses this for the selectable frequencies in
the drop-down list displayed when selecting frequencies.
This 5 MHZ band can be different for the transmit and receive
frequencies.
Receiver Offset The normal operation of the SX500 is with the transmit and
receive frequency the same. If an offset is required, a fixed
offset can be made between the frequencies by double-
clicking to bring up a selection of offsets. If a frequency
outside the alignment band is selected then the operation of
the SX500 will no longer be to the stated specification
Max. Channel Number
This number will determine how many sequential channels are
programmed into the table.
Serial/Parallel To ensure the correct operation of the unit after programming
set this flag accordingly. After programming the unit the serial
or parallel mode will be set according to this selection.
Serial Channel No.
To change channel select a new channel number by right-
clicking to bring up a list or double-clicking to select the field
to modify.
Random Channel Table
The first 24 channels of the SX500 can store randomly selected channels, which are non-
sequential or separated by a common gap. To change an existing frequency, double-click
the particular channel. Either type in a new frequency or select from a displayed list of
allowed frequencies.
Sequential Channel Table
To program these frequencies, ensure that the Max. Channel Number field in the “Current
Settings” is set correctly. Under the “Sequential Channel Table” area enter the start
frequency and the Table Step size to set the frequencies in the table.