Remote Interface (Accessory) - Agilent Technologies 8648A Operation And Service Manual

Remote Interface (Accessory)

1. MOD ON/OFF
Press to turn on or off all modulation (internal and external) to the RF
MOD ON/OFF
carrier. When modulation is turned off, the LED above the key is off and OFF appears in
the second line of the instrument's MODULATION display.
This key also turns on or off the audio output at the MOD INPUT/OUTPUT port when an
internal source (400 Hz or INT 1 kHz) is selected.
2. RF ON/OFF
Press to turn the RF output signal on or off. When the RF output signal is
RF ON/OFF
turned off, the LED above the key is off and RF OFF appears in the second line of the
instrument's AMPLITUDE display. There is approximately 170 dB of carrier isolation
when the output is off.
3. Sequence Selection Arrows
Press ⇑ or ⇓ to select the next or previous sequence of registers. The sequences are selected
in numeric order. The number of the selected sequence appears in the second line of the
FREQUENCY display. When a sequence is selected, the first register in the sequence is
recalled. When a sequence is selected that has no registers saved in it, two dashes (- -) will
appear in the REG field.
Operation Reference
Function
1b-51