Amplitude Modulation
Modulation Depth:
Modulation Frequency:
External Modulation:
OUTPUTS
50Ω Main Out
Output Impedance:
Amplitude:
Attenuator:
DC Offset Range:
600Ω Main Out
Alternative output socket providing the same signal as the 50Ω Main Out but from 600Ω. The 50Ω
and 600Ω sockets are not independent.
Aux Out
Output Characteristics:
Output Level:
Sweep Out
When internal sweep is selected the sweep signal is available as a 0 to 3V ramp from 600Ω.
INPUTS
Sweep In
The SWEEP IN/OUT socket is set to Sweep In when EXT SWEEP is selected.
Input Impedance:
Input Sensitivity:
Maximum Allowable Input
Voltage:
Sweep Linearity:
Maximum Slew Rate of
Sweep Voltage:
AM In
The AM/COUNT IN socket is set to AM input when EXT AM is selected.
Input Impedance:
Input Sensitivity:
Maximum Allowable Input
Voltage:
4
Variable 0 to 100% typical.
400Hz internal. DC to 100kHz external.
By signal applied to COUNT/AM IN socket.
50Ω.
2mV to 20V peak-peak open circuit (1mV to 10V peak-peak into 50Ω)
in four switch-selectable ranges with 20dB vernier control within each
range.
0, –20, – 40 or – 60dB.
±10V. DC offset plus signal peak limited to ±10V (±5V into 50Ω); CLIP
shows in display when offset + signal peak exceeds ±10V. DC offset
plus waveform attenuated proportionally by the attenuator.
Frequency, symmetry and phase the same as main outputs.
0 to 5V TTL/CMOS logic levels capable of driving 2 standard TTL
loads.
10kΩ.
0 to 3V for 1000:1 sweep.
±10V.
Better than 1%
0·1V/µs.
40kΩ.
Approximately 2V peak-peak for 100% modulation.
±10V.