Atec Rohde-Schwarz-SML03 User Manual
Page 9
Signal Generator ¸SML
9
Frequency modulation
Operating modes
internal, external AC/DC,
internal/external two-tone
Frequency deviation
9 kHz to 76 MHz
>76 MHz to 151.3125 MHz
>151.3125 MHz to 302.625 MHz
>302.625 MHz to 605.25 MHz
>605.25 MHz to 1.2105 GHz
>1.2105 GHz to 1.818 GHz
>1.818 GHz to 2.655 GHz
>2.655 GHz to 3.300 GHz
0 Hz to 1 MHz
0 Hz to 125 kHz
0 Hz to 250 kHz
0 Hz to 500 kHz
0 Hz to 1 MHz
0 Hz to 2 MHz
0 Hz to 3 MHz
0 Hz to 4 MHz
Resolution
<1% of set deviation, minimum 10 Hz
Setting accuracy (at AF = 1 kHz)
<4% of reading + 20 Hz
FM distortion (at AF = 1 kHz and
50% of max. deviation)
<0.2%, typ. 0.1%
Modulation frequency range (<3 dB),
standard/wide
DC/10 Hz to 100 kHz/500 kHz
Incidental AM (at AF = 1 kHz,
f >10 MHz, 40 kHz deviation)
<0.1%
Stereo modulation at 40 kHz useful
deviation, AF = 1 kHz,
RF = 87 MHz to 108 MHz
Crosstalk attenuation
S/N ratio unweighted, rms
S/N ratio weighted, rms
Distortion
(for external multiplex signal)
>50 dB
>70 dB
>70 dB
<0.2%, typ. 0.1%
Carrier frequency offset at FM DC
typ. 0.1% of set deviation
Modulation input EXT
Input impedance
Input voltage V
p
for set deviation
(nominal value)
>100 k
Ω
1 V
Phase modulation
Operating modes
internal, external AC/DC,
internal/external two-tone
Phase deviation
9)
9 kHz to 76 MHz
>76 MHz to 151.3125 MHz
>151.3125 MHz to 302.625 MHz
>302.625 MHz to 605.25 MHz
>605.25 MHz to 1.2105 GHz
>1.2105 GHz to 1.818 GHz
>1.818 GHz to 2.655 GHz
>2.655 GHz to 3.300 GHz
0 rad to 10 (2) rad
0 rad to 1.25 (0.25) rad
0 rad to 2.5 (0.5) rad
0 rad to 5 (1) rad
0 rad to 10 (2) rad
0 rad to 20 (4) rad
0 rad to 30 (6) rad
0 rad to 40 (8) rad
Resolution
<1%, min. 0.001 rad
Setting accuracy at AF = 1 kHz
<4% of reading + 0.02 rad
Phase distortion (at AF = 1 kHz and
50% of maximum deviation)
<0.2%, typ. 0.1%
Modulation frequency range (–3 dB),
standard/wide
DC/10 Hz to 100 kHz/500 kHz
Modulation inputs EXT
Input impedance
Input voltage V
p
for set deviation
(nominal value)
>100 k
Ω
1 V
Pulse modulation (with option ¸SML-B3)
Operating modes
internal, external
On/off ratio
>90 dB
Rise/fall time (10%/90%)
<20 ns, typ. 10 ns
Pulse repetition frequency
0 Hz to 2.5 MHz
Pulse delay
typ. 50 ns
Video crosstalk (V
p
)
<30 mV
Modulation input PULSE
Input level
Input impedance
TTL level (HCT)
10 k
Ω or 50 Ω, selectable with internal
link
Pulse generator (with option ¸SML-B3)
Operating modes
automatic, externally triggered, external
gate mode, single pulse, double pulse,
delayed pulse (externally triggered)
Active trigger edge
positive or negative
Pulse period
Resolution
Accuracy
100 ns to 85 s
5 digits, min. 20 ns
<1 × 10
−4
Pulse width
Resolution
Accuracy
20 ns to 1 s
4 digits, min. 20 ns
<(1 × 10
−4
+ 3 ns)
Pulse delay
Resolution
Accuracy
20 ns to 1 s
4 digits, min. 20 ns
<(1 × 10
−4
+ 3 ns)
Double-pulse spacing
Resolution
Accuracy
20 ns to 1 s
4 digits, min. 20 ns
<(1 × 10
−4
+ 3 ns)
Trigger delay
typ. 50 ns
Jitter
<10 ns
PULSE/VIDEO output
TTL signal (R
L
≥50 Ω)
Stereo/RDS Coder (with option ¸SML-B5)
The specifications apply to RF frequencies in the range 66 MHz to 110 MHz.
Stereo modes
Internal with modulation generator
External analog (via L and R inputs)
or external digital (via S/P DIF input)
L, R, R = L, R = –L
L, R, R = L, R = –L, R
≠ L
internal generation of ARI/RDS signals,
5 user-selectable RDS data sets,
simultaneous generation of MPX, ARI
and RDS signals possible
MPX frequency deviation
Resolution
0 Hz to 80 kHz
10 Hz
L, R signal
AF frequency range
AF frequency response
(referenced to 500 Hz)
AF = 20 Hz to 40 Hz
AF = 40 Hz to 15 kHz
20 Hz to 15 kHz
<0.3 dB
<0.2 dB
Stereo crosstalk attenuation
(at AF = 1 kHz)
>50 dB
Distortion (at 67.5 kHz MPX
frequency deviation, AF = 1 kHz)
<0.1%, typ. 0.05%
S/N ratio
10)
(stereo/RDS signal)
ITU-R weighted (quasi-peak)
ITU-R unweighted (rms)
A-weighted (rms)
>60 dB, typ. 63 dB
>70 dB, typ. 74 dB
>70 dB, typ. 76 dB
Preemphasis
off, 50 µs, 75 µs
Pilot tone
Frequency
Deviation
Resolution
Phase (relative to 38 kHz phase)
Resolution
19 kHz ±2 Hz
0 Hz to 10 kHz
10 Hz
0
° to ±5°
0.1
°
ARI/RDS subcarrier frequency
57 kHz ±6 Hz
ARI frequency deviation
Resolution
0 Hz to 10 kHz
10 Hz
RDS frequency deviation
Resolution
0 Hz to 10 kHz
10 Hz