RF Signal Generator
¸SM300
9 kHz to 3 GHz
The new product family
from
Rohde & Schwarz
i
Third Edition April 2006
Professional signal generator
for production, laboratory and service
The ¸SM300 is a favourably priced signal
generator for applications in the 9 kHz to 3 GHz
frequency range. The instrument features a broad
scope of functions, outstanding technical charac-
teristics and compact design.
The analog modulation modes AM, FM, ϕM and
pulse modulation can be set on the ¸SM300.
The built-in I/Q modulator adds vector modulation
capabilities to the ¸SM300. Digitally modu-
lated signals can thus be generated, as required
in mobile radio, for example.
The ¸SM300 offers an immense range of
applications – whether on the lab bench, in ser-
vice or as a flexible measuring instrument in auto-
matic production systems.
Condensed data
High signal quality
Built-in I/Q modulator
All analog modulation modes
Frequency sweep, level sweep
High level accuracy
Internal pulse generator
USB remote control
Frequency range RF: 9 kHz to 3 GHz, LF: 20 Hz to 80 kHz
Frequency resolution 0.1 Hz
Frequency setting time <10 ms
Modulation modes AM/FM/
Level resolution 0.1 dB
Level uncertainty <1 dB (for levels >–120 dBm)
Level range –127 dBm to +13 dBm
Level setting time <200 ms
Single-sideband (SSB) phase noise <–95 dBc (1 Hz) (at f = 1 GHz,
Internal modulation generator 20 Hz to 80 kHz
2 RF Signal Generator ¸SM300
ϕM/pulse/IQ
∆f = 20 kHz)
The menu area displays
menus for setting
parameters and functions
The softkey area displays
different instrument
functions depending on
the selected menu
Rotary knob
for gradually varying
instrument parameters
Numeric keypad
for entering
numeric parameters
Ergonomic user interface
Operation is menu-guided so that even untrained users will quickly obtain correct results.
A clear structure simplifies navigation within the menus.
The high-contrast TFT colour display with 320 × 240 pixel resolution allows traces to be read even
at odd angles or when the incidence of light is unfavourable.
for navigating in the menus
Arrows
Buttons
for confirming entered values
System key
for calling system and
service functions
3RF Signal Generator ¸SM300
Applications
Its broad scope of functions makes the
¸SM300 the ideal instrument for diverse
use, e.g. in digital and analog mobile radio or for
EMC applications.
Generation of precise test signals for the following applications:
lab, service, production and quality assurance
Provision of digitally modulated signals in the 9 kHz to 3 GHz
frequency range (e.g. with the ¸AM300 as an external baseband
signal source)
Signal generation and modulation (AM, pulse) for EMC measurements
of components (EMS)
Functionality testing of components in production
Semi-automatic measurements by pressing a button to retrieve stored
settings
Vector modulation
High I/Q bandwidth (DC to 40 MHz) for WLAN measurements
in accordance with IEEE 802.11b and IEEE 802.11g
Generation of WCDMA test signals for measuring ACLR, EVM
and code domain power
ACLR WCDMA 3GPP FDD (test model 1, 64 DPCHs)
Offset 5 MHz: typ. 54 dB
Offset 10 MHz: typ. 55 dB
Composite EVM (test model 1, 64 DPCH
Generation of GSM signals for measuring phase error
Phase error:
typ. 1.2° rms
1)
s): typ. 3.3 %
EMC
Provision of signal generator control level in
20 Hz to 3.0 GHz frequency range
AM, pulse modulation modes
Internal pulse generator
EN61000-4-3/6 standards; MIL-STD-461E, ISO 11451 and
ISO 11452, each up to 3 GHz
1
Requires an external baseband signal
source, e.g. the ¸AM300 or
RF Signal Generator ¸SM3004
¸AFQ100A.
-90
SSB phase noise in dBc (1Hz), typ.
-95
-100
-105
-110
-115
-120
-125
-130
10 100 1000 10000
carrier offset in kHz
SSB phase noise, typ. in dBc (1Hz) @ 800 MHz
SSB phase noise,
typ. in dBc (1Hz) @ 1800 MHz
High signal quality
The RF characteristics of the ¸SM300 set new standards in the lower price
segment. With a frequency range from 9 kHz to 3 GHz, it is suitable for diverse appli
cations. Its low wideband and single-sideband phase noise make the ¸SM300
the ideal tool for use in labs, test sets at colleges and universities, in service and at
production sites.
Built-in I/Q modulator
The ¸SM300 is equipped with an I/Q modulator. Together with a baseband
source such as the ¸AM300, it can thus generate complexly modulated signals.
Applications in mobile radio are also possible, for example for GSM, 3GPP or
IEEE 802.11b and IEEE 802.11g.
Wide variety of analog modulation modes
-
The ¸SM300 can handle all common modulation modes, i.e. AM, FM, ϕM,
pulse. It is used for generating interference signals in EMC applications, e.g. automobile industry, military or avionics.
Frequency sweep, level sweep
The ¸SM300 makes it possible to sweep the internal LF generator as well as
the RF frequency and the RF level in user-selectable steps.
.
RF Signal Generator ¸SM300 5
The new instrument family –
equipped for the future
Versatile applications
Desktop use
Portable for mobile use
Integration into 19-inch racks
RF Signal Generator ¸SM3006
USB interfaces
The USB host interface links the instruments to the PC world. The bus ensures high data trans-
mission rates at low cost. Other peripherals (e.g. printers) can be addressed via another
USB interface.
Identical housing
All instruments based on the Family 300 concept have an almost identical “face”, a 5.4-inch VGA TFT display,
front-panel control elements, protective guards and a handle that can be adjusted to different positions. Only
the connectors on the front and rear panel vary depending on the instrument type.
If the protective guards and the handle are removed, the ¸SM300 can be installed in a 19-inch rack.
Owing to their slim design, two instruments of the Family 300 can be placed next to each other.
Uniform operating concept
All instruments are similarly operated. Most operations are menu-controlled so that no device-specific keys
are required. Only the four unit keys for entry confirmation are configured separately.
RF Signal Generator ¸SM300 7
Specifications
Important: We continuously refine our products. Please check our homepage www.sm300.rohde-schwarz.com
for new applications and features.
Specifications are valid under the following conditions: specified environmental conditions met, calibration cycle
adhered to and total calibration performed.
RF frequency
Frequency range 9 kHz to 3 GHz
Setting
Setting time for an offset of <1 × 10
Reference frequency 10 MHz
Aging <2 × 10–6/year
Temperature drift 5 °C to 45 °C <1 × 10
Spectral purity
Spurious
Harmonics
Subharmonics fC > 1 MHz <–50 dBc
Nonharmonics >10 kHz from carrier <–50 dBc
Wideband noise fc = 1 GHz, carrier offset >2 MHz <–123 dBc (1 Hz)
Single-sideband phase noise fc = 1 GHz, carrier offset 20 kHz <–95 dBc (1 Hz)
Residual FM fc = 1 GHz
resolution 0.1 Hz
–7
level ≤0 dBm, fc > 1 MHz
0.3 Hz to 3 kHz
0.03 kHz to 20 kHz
Residual AM fc = 1 GHz
0.3 kHz to 3 kHz
<10 ms
–6
<–30 dBc
<10 Hz rms
<30 Hz peak
<60 Hz rms
<300 Hz peak
<0.03 % rms
<0.2 % peak
RF level
Level range –127 dBm to +13 dBm
Setting time to <0.3 dB deviation <200 ms
Setting
Level uncertainty fC >100 kHz, level >–120 dBm,
resolution 0.1 dB
<1 dB
20 °C to 30 °C
LF generator
Frequency range 20 Hz to 80 kHz
Frequency resolution 0.1 Hz
Frequency response 20 Hz to 20 kHz <0.2 dB
Total harmonic distortion 20 Hz to 20 kHz <0.1 %
RF Signal Generator ¸SM3008
Modulation
Amplitude modulation
Operating modes internal, external AC/DC
Modulation depth the modulation depth that can be set
observing the AM specifications continuously decreases from +7 dBm to +13 dBm
Resolution 0.1 %
Setting uncertainty fLF = 1 kHz, m <80 %, level = 0 dBm <5 % of setting + 0.2 %
AM total harmonic distortion fLF = 1 kHz, m <80 %, level = 0 dBm <2 %
Modulation frequency range DC/20 Hz to 20 kHz
Frequency modulation
Operating modes internal, external AC/DC
Frequency deviation 20 Hz to 100 kHz
Resolution <1 %, min. 1 Hz
Setting uncertainty fLF = 1 kHz <5 % of setting + 300 Hz
FM total harmonic distortion fLF = 1 kHz, deviation = 50 kHz <1 %
Carrier frequency deviation external <200 Hz
Modulation frequency range DC/20 Hz to 80 kHz
Phase modulation
Operating modes internal
Phase deviation
Resolution <1 %, min. 0.001 rad
Setting uncertainty fLF = 1 kHz <5 % of setting + 0.2 rad
ϕM total harmonic distortion
Modulation frequency range 300 Hz to 20 kHz
I/Q modulation
Operating modes external
Modulation frequency range (3 dB) DC to 40 MHz
Carrier suppression typ. 40 dBc
ACLR WCDMA 3GPP FDD (test model 1, 64 DPCHs)
Composite EVM
Phase uncertainty
fLF ≤ 10 kHz
10 kHz < f
fLF = 1 kHz, deviation = 5 rad <1.5 %
offset 5 MHz
offset 10 MHz
WCDMA 3GPP FDD (test model 1, 64 DPCHs) typ. 3.3 %
GSM typ 1.2 °
≤ 20 kHz
LF
0 % to 100 %
0 to 10 rad
0 to 5 rad
typ. 54 dB
typ. 55 dB
Pulse modulation/pulse generator
Operating modes external, internal
Rise/fall time (10 %/90 %) <3 µs
Delay time (external) 100 µs to 1 s
Pulse width (internal, external) 100 µs to 1 s
Pulse period (internal) 200 µs to 2 s
Time resolution 1 µs
RF Signal Generator ¸SM300 9
V
2
I
VQ+
2
= 0.5 V
V
2
I
VQ+
2
= 0.5 V
Simultaneous modulation
AM int AM ext I/Q FM int FM ext
AM int –
AM ext
I/Q – – –
FM int
FM ext
ϕM
Pulse int – –
Pulse ext – –
1)
Combinations marked in red are not visible on the MMI screen.
3
3 3 3
3 3 3
3 3 3
3
– –
1)
ϕM
–
3 3 3 3
3 3 3 3
3 3 3
3 3 3
3 3 3 3 3
–
– – –
– – –
3
Pulse int Pulse ext
–
– –
– –
3 3
3 3
3 3
– –
– –
Sweep
RF sweep, LF sweep
Operating modes continuous sweep, single sweep,
single step
Sweep range
Step width (log)
Step width (lin) LF: 0.1 Hz to 80 kHz
Level sweep
Operating modes continuous sweep, single sweep,
Sweep range –127 dBm to +13 dBm
Step width 0.1 dB to 20 dB
Step time 10 ms to 1 s
LF: 20 Hz to 80 kHz
RF: 9 kHz to 3 GHz
0.01 % to 100 %
RF: 0.1 Hz to 1 GHz
single step
Inputs
Reference frequency input
Connector BNC female
Reference frequency 10 MHz, 5 MHz, 2 MHz
Input voltage 0.5 V to 2 V
Input impedance
AM/FM modulator input
Connector BNC female
Input voltage for max. modulation depth
or modulation deviation
Input impedance
I/Q modulator inputs
I/Q inputs BNC female
Input impedance
Input voltage
VSWR <1.5
Pulse modulator input
Connector BNC female
Input voltage TTL voltages
1 V
50 Ω
>100 kΩ
50 Ω
RF Signal Generator ¸SM30010
Certified Quality System
ISO 9001
DQS REG. NO 1954 QM
Certified Environmental System
ISO
14001
DQS REG. NO 1954 UM
Outputs
RF output
Connector N female on front panel
Characteristic impedance
VSWR
Max. permissible RF power
Max. permissible DC voltage
LF output
Connector BNC female on front panel
Output voltage
Output voltage resolution <1 %, 1 mV minimum resolution
Spurious suppression
Reference frequency output
Connector
Reference frequency
Output voltage
1 MHz < fC ≤ 3 GHz
1 minute +36 dBm
50 Ω
<1.8
30 V
1 mV to 2 V rms,
<–60 dBc
BNC female
10 MHz
>0.5 V into 50 Ω
into 50 Ω
Interfaces
USB host
Connector A plug
Protocol
USB interface
Connector
Protocol
Command set
version 1.1
B plug
version 1.1
device-specific, remote control via supplied
Windows driver (Windows XP, 2000)
Power supply
Input voltage range 100 V to 240 V (AC), 50 Hz to 60 Hz,
autoranging
Power consumption
<35 VA
RF Signal Generator ¸SM300 11
General data
Display
Type 5.4” active colour TFT display
Resolution
Memory locations
Device setups
Ambient conditions
Operating temperature range meets DIN EN 60068-2-1/2
Storage temperature range
Relative humidity meets DIN EN 60068-2-3
Mechanical resistance
Vibration, sinusoidal
Vibration, random meets DIN EN 60068-2-64 10 Hz to 500 Hz: 1.9 g
Shock meets DIN EN 60068-2-27 and
Electromagnetic compatibility
EMI field strength
Protection class DIN EN 61010-1 / IEC61010-1 UL3111-1;
320 × 240 pixels
10
+5 °C to +45 °C
–20 °C to +70 °C
95 % at +40 °C
(no moisture condensation)
meets DIN EN 60068-2-6,
DIN EN 61010-1 and MIL-T-28800D class 5
MIL-STD-810
meets EN 55011 class B and EN 61326
(EMC Directive 89/336/EEC)
CSA22.2 No: 1010.1
5 Hz to 150 Hz, max. 2 g at 55 Hz,
55 Hz to 150 Hz: 0.5 g constant
shock spectrum
<10 V/m
Dimensions (W × H × D)
Weight approx. 7 kg
Ordering information
RF Signal Generator ¸SM300
Designation
RF Signal Generator
Rack Adapter
Carrying Case
Calibration Documentation ¸DCV-1 0240.2187.55
Type Order No.
¸SM300 1147.1498.03
¸ZZA-300 1147.1281.00
¸ZZK-300 1147.2542.02
219 mm × 147 mm × 350 mm
¸is a registered trademark of Rohde & Schwarz GmbH & Co. KG · Trade names are trademarks of the owners · Printed in Germany (Pe we/ch)
www.rohde-schwarz.com
PD 0758.0180.32 · ¸SM300 · Version 03.00 · April 2006 · Data without tolerance limits is not binding · Subject to change
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