Specifications

51
6-16 Configure IF output frequency
The function enables you to tap the 2
nd
IF signal (10.7MHz) or the 3
rd
IF signal (455KHz)
from the BNC (marked as 10.7MHz) type connector on the rear panel. The 10.7MHz of the
2
nd
IF signal is to be used with the optional SDU5600 spectrum display unit for signal
analysis. The bandwidth at 10.7 MHz is +/- 5 MHz from the center frequency (10 MHz total).
6-16-1 Selecting IF output frequency
To select the IF frequency, push the FUNC key and then push the 7 key.
Push the down arrow key to move the cursor to the “IF out SEL” selection point.
Use the main tuning dial, the right arrow key or the left arrow key to select either 455kHz or
10.7 MHz.
Push the ENT key to validate. Alternatively, push the ESC key to abort entry. Or, push the
down arrow key to move to the next item on the configuration menu (Reference Signal).
6-17 Configure reference signal source
The function enables you to select the reference signal of the receiver. The AR-ONE has a
built-in stable reference oscillator, however, an external high stability 10 MHz reference
(such as off-air atomic coupled) can be accepted from the SMA connector (marked as 10
MHz IN) on the rear panel of the AR-ONE.
Push the down arrow key to move the cursor to the “REF SEL” selection point.
Use the main tuning dial, the right arrow key or the left arrow key to select the desired
reference signal source (internal or external). The default is INT.
Push the ENT key to accept data and return to a standard display. Alternatively, push the
ESC key to abort entry.