HP 8648 A/B/C/D - Changpuak.ch

Remote Interface
Remote Interface
(Accessory)
1
!I I
0
iMOD
cI
0
2 -:?zj
1. MOD ON/OFF
2. RF ON/OFF
3. Sequence Selection
Arrows
1 b-58 Operation Reference
-4
I II
Press (MOD ON/OFF) to turn on or off all modulation (internal and
external) to the RF 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.
Press [TON/OFF_) to turn the RF output signal on or off. When the RF
output signal is 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.
Press m or @J 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.