Internal modulation source, Lf out (internal modulation source), External modulation inputs – Atec Agilent-E4437B User Manual
Page 9: Simultaneous modulation
9
Internal modulation source
(Provides FM,
ΦM, and AM modulation signals and LF out)
Waveforms
sine, square, ramp, triangle,
pulse, noise
Rate range
Sine
0.1 Hz to 50 kHz
Square, ramp, triangle
0.1 Hz to 10 kHz
Resolution
0.1 Hz
Pulse only
4 µs
Frequency accuracy
0.005%, typical
Swept sine mode (frequency, phase continuous)
Operating modes
Triggered or continuous sweeps
Frequency range
0.1 Hz to 50 kHz
Sweep time
1 ms to 65 sec
Resolution
1 ms
Dual sinewave mode
Frequency range
0.1 Hz to 50 kHz
Amplitude ratio
0 to 100%
Amplitude ratio resolution
0.1%
LF out (internal modulation source)
Amplitude
0 to 3 V
peak
into 50
Ω
Output impedance
<1
Ω
External modulation inputs
Modulation types
Ext 1
FM,
ΦM, AM, and burst envelope
Ext 2
FM,
ΦM, AM, and pulse
High/Low Indicator (100 Hz to 10 MHz BW, AC coupled inputs
only) Activated when input level error exceeds 3% (nominal)
Simultaneous modulation
All modulation types may be simultaneously enabled, except: FM
with FM; AM with burst envelope; Wideband AM with I/Q. AM,
FM, and FM can sum simultaneous inputs from any two sources
(INT, EXT 1, and EXT 2.) Any given source (INT, EXT 1, or EXT 2)
may only be routed to one activated modulation type.