Atec Rohde-Schwarz-SMIQ Series - Manual (Page 6)

6 Vector Signal Generator R&S SMIQ – Specifications
Amplitude modulation 2)
Broadband amplitude modulation
Pulse modulation
Frequency modulation with option R&S SM-B5
Modes internal, external AC/DC
Modulation depth 0% to 100%
Resolution 0.1%
Setting error at 1 kHz (m <80%) <4% of reading +1%
AM distortion at 1 kHz
m = 30%
m = 80% <1%
<2%
Modulation frequency range, RF ≥5 MHz
for RF <5 MHz
DC to 50 kHz
DC to 3 kHz
Modulation frequency response
20 Hz to 20 kHz
for RF
<5 MHz, 20 Hz to 3 kHz
<3 dB
<3 dB
Incidental ϕM at 30% AM,
AF = 1 kHz, peak value <0.1 rad
Modulation input EXT1
Input impedance
Input voltage for selected modulation depth
High/low indication (10 Hz to 50 kHz) >100 kΩ
1 V peak
for inaccuracy
>3%
Mode external DC
Modulation frequency response
up to 10 MHz
up to 30 MHz <1 dB
<3 dB
Modulation input (broadband AM)
Input impedance
Input voltage for 100% AM 50 Ω
0.25 V peak
Modes external
On/off ratio >80 dB
Rise/fall time (10%/90%) 30 ns typ.
Pulse repetition frequency 0 kHz to 1 MHz
Pulse delay 200 ns typ.
Modulation input PULSE
Input signal
Input impedance TTL level (HCT)
>10 kΩ
Modes internal, external AC/DC, two-tone with two modulation
channels FM1 and FM2
Max. deviation without I/Q modulation
0.3 MHz to 450 MHz
>450 MHz to 750 MHz
>750 MHz to 1500 MHz
>1500 MHz to 3300 MHz
>3300 MHz to 6400 MHz
2 MHz
0.5 MHz
1 MHz
2 MHz
4 MHz