Atec SMIQ User Manual

Specifications for

Vector Signal Generator R&S SMIQ

Valid from 7/2002

Specifications are guaranteed under the following conditions: 30 minutes warmup time at ambient temperature, specified environmental conditions met, calibration cycle adhered to, and total calibration performed. Data designed „overrange“ are not guaranteed. Data without tolerances: typical values. – In compliance with the 3GPP standard, chip rates are specified in Mcps (million chips per second), whereas bit rates, symbol rates and sample rates are specified in kbps (thousand bits per second) or ksps (thousand symbols/samples per second). Mcps, kbps and ksps are not SI units.

RF features

Frequency

Range

R&S SMIQ02B R&S SMIQ03B R&S SMIQ04B R&S SMIQ06B

Resolution (CW, analog modulation, attenuator mode AUTO)

Setting time to within <1x10−7 for f>450 MHz and <240 Hz for f<450 MHz after IEC/IEEE-bus delimiter with ALC MODE set to ON or ALC OFF MODE set to TABLE

Normal operation

f ≤ 3.3 GHz f > 3.3 GHz

After trigger pulse in list mode

f ≤ 3.3 GHz f > 3.3 GHz

Fast restore mode

f ≤ 3.3 GHz f > 3.3 GHz

Phase offset adjustable in steps of 0.1°

300 kHz to 2.2 GHz 300 kHz to 3.3 GHz 300 kHz to 4.4 GHz 300 kHz to 6.4 GHz

0.1 Hz

<3 ms <3.3 ms

<500 µs <700 µs

<800 µs <1 ms

Reference frequency

Standard Option R&S SM-B1

Aging (after 30 days of operation) 1x10−6/year <1x10−9/day Temperature effect (0°C to 50°C) 2x10

−6

<5x10

−8

Warm -up ti me ≤15 min Output for internal reference

Frequency Level Source impedance

10 MHz

8 dBm

50 Ω

Input for external reference

Frequency Permissible frequency drift

Input level Input impedance

Electronic tuning (EXT. TUNE)

Input voltage range Input impedance

1x10−7/V 0 V to ±10 V 10 kΩ State On

1 MHz to 16 MHz in 1 MHz steps

−6

3x10

0.1 V to 2 V rms

200 Ω

values to standard, but with Adjustment

Level

Range

R&S SMIQ02B/03B R&S SMIQ04B/06B Overranging without guarantee of specs

−144 dBm to +13 dBm (PEP)

−144 dBm to +10 dBm (PEP)

up to 16 dBm

Resolution (CW, FM, ϕM, attenuator mode AUTO) 0.1 dB or 0.01 dB

1 )

2 Vector Signal Generator R&S SMIQ – Specifications

Total level uncertainty >−127 dBm

f ≤2.5 GHz f >2.5 GHz to 4 GHz f >4 GHz to 6.4 GHz

2 ) 12 )

, CW

<0.5 dB <0.9 dB <1.2 dB

Output impedance 50 Ω VSWR

max. level ≤–3 dBm

Setting time to within 0.1 dB from settled level after IEC/IEEE bus delimiter in CW, FM, ϕM

f ≤2.2 GHz 2.2 GHz < f ≤ 6.4 GHz

<1.8 <2.0 <1.5 <1.8

<25 ms with mechanical attenuator <2.5 ms without mechanical attenuator

Non-interrupting level setting

FIXED mode ELECTRONIC mode

setting range >20 dB setting range >80 dB

Overload protection protects the unit from externally

applied RF power (from 50 Ω source) and DC voltage

Max. permissible RF power 50 W (R&S SMIQ02B/R&S SMIQ03B)

1 W (R&S SMIQ04B/R&S SMIQ06B)

Max. permissible DC voltage 35 V (R&S SMIQ02B/R&S SMIQ03B)

0 V (R&S SMIQ04B/R&S SMIQ06B)

Spectral purity

Spurious

Harmonics

at levels ≤10 dBm (R&S SMIQ02B/03B) at levels ≤7 dBm (R&S SMIQ04B/06B)

Nonharmonics

CW, carrier offset >10 kHz

0.3 MHz to 450 MHz

>450 MHz to 1500 MHz >1500 MHz to 3000 MHz >3000 MHz to 3300 MHz

>3300 MHz

Vector modulation,

carrier offset 10 kHz to < 300 MHz

0.3 MHz to 3300 MHz

carrier offset ≥300 MHz

0.3 MHz to 3300 MHz

carrier offset 10 kHz to < 900 MHz

>3300 MHz to 6000 MHz >6000 MHz

carrier offset ≥900 MHz

>3300 MHz, ≥5 dBm

Broadband noise, CW, carrier offset >5 MHz, measurement bandwidth 1 Hz

f >20 MHz to 450 MHz f >450 MHz to 3040 MHz f >3040 MHz to 3300 MHz f >3300 MHz to 6400 MHz

Broadband noise, vector modulation,

f >20 MHz, carrier offset >5 MHz to 3300 MHz f >20 MHz, carrier offset >3300 MHz to 6400 MHz

SSB phase noise, carrier offset 20 kHz, measurement bandwidth 1 Hz

f = 20 MHz to 450 MHz f = 1 GHz f = 2 GHz f = 3 GHz f = 6 GHz

<−30 dBc

<−74 dBc <−80 dBc <−74 dBc <−60 dBc

as with vector modulation

<−70 dBc

<−60 dBc

<−64 dBc <−58 dBc

<−50 dBc

<−136 dBc (−142 dBc typ.) <−138 dBc (−144 dBc typ.) <−136 dBc (−142 dBc typ.) <−132 dBc (−138 dBc typ.)

<−136 dBc (−140 dBc typ.) <−133 dBc (−137 dBc typ.)

<−116 dBc <−126 dBc <−120 dBc <−116 dBc <−110 dBc

Vect or/dig . mod.

<−119 dBc <−123 dBc <−120 dBc <−116 dBc <−110 dBc

Vector Signal Generator R&S SMIQ – Specifications 3

Residual FM, rms (f = 1 GHz)

0.3 kHz to 3 kHz (ITU-T)

0.02 kHz to 23 kHz

<1 Hz <4 Hz

Residual AM, rms (0.02 kHz to 23 kHz) <0.02%

Sweep

RF sweep, AF sweep

Modes

digital sweep in discrete steps automatic, single shot, manual or external trigger,

linear or logarithmic Sweep range Step width (lin) Step width (log)

Level sweep

Modes Sweep range Step width (log)

Step time

Resolution

user-selectable

0.01% to 100%

not available with vector or digital modulation

automatic, single shot, manual or external trigger, logarithmic

0.1 dB to 20 dB

3 ms to 5 s

0.1 ms Markers 3, user-selectable MARKER output signal TTL level (HCT), selectable polarity Xoutput 0 V to 10 V BLANK output signal TTL level (HCT), selectable polarity

Internal modulation generator

Frequency range

Resolution

Frequency error <(1x10 Frequency response up to 100 kHz <0.4 dB Frequency response up to 1 MHz <2 dB Distortion up to 100 kHz

>200 Ω, peak level 1 V) <0.2%

Open-circuit voltage at LF socket

Resolution Setting error at 1 kHz

Output impedance approx. 10 Ω Frequency setting time

(after receiving last IEC/IEEE-bus character)

0.1 Hz to 1 MHz

0.1 Hz

−4

of setting + 0.012 Hz)

1 mV to 4 V peak 1 mV 1% + 1 mV

<3 ms

4 Vector Signal Generator R&S SMIQ – Specifications

Analog modulation

Vector modulation

Level accuracy with vector modulation, additional error with ALC OFF, relative to CW

Mode I and Q modulation inputs

Input impedance VSWR (DC to 30 MHz) If R&S SMIQ is fitted with two fading simulators (R&S SMIQB14 and R&S SMIQB15) and a noise generator and distortion simulator (R&S SMIQB17), the VSWR of the I and Q inputs for vector modulation (DC to 30 MHz) degrades to

Input voltage for full-scale input

Static error vector

3 )

level ≤8 dBm PEP (R&S SMIQ02B/03B) level ≤5 dBm PEP (R&S SMIQ04B/06B)

up to 3.3 GHz

rms value peak value

>3.3 GHz

rms value peak value

Modulation frequency response

up to 5 MHz up to 30 MHz

Carrier leakage at 0 V input voltage, referred to full-scale input

3 )

I/Q impairments

Carrier leakage

Setting range Resolution

I ≠ Q

Setting range Resolution

Quadrature offset

Setting range Resolution

Envelope control

RF level can be controlled with an analog voltage of 0 V to 1 V via the POWER RAMP input

Input impedance Linear range Attenuation error at −20 dB On/off ratio Delay time Rise/fall time (10% to 90%)

<0.3 dB

external DC

50 Ω <1.2

<1.25

2Q2

0.5 V (1 V EMF with 50 Ω source)

<0.5% <1%

<1% <2%

<0.4 dB <3 dB

<−45 dBc

0% to 50%

0.5%

−12% to +12%

0.1%

−10° to +10°

0.1°

1 V: set level 0 V: maximum level attenuation 10 kΩ 0 dB to −30 dB (−35 dB typ.)

<0.5 dB >80 dB

1 µs typ. <1 µs

Vector Signal Generator R&S SMIQ – Specifications 5

Amplitude modulation

Modes internal, external AC/DC Modulation depth

Resolution 0.1% Setting error at 1 kHz (m <80%) <4% of reading +1%

AM distortion at 1 kHz

m = 30% m = 80%

Modulation frequency range, RF ≥5 MHz

for RF <5 MHz

Modulation frequency response

20 Hz to 20 kHz for RF <5 MHz, 20 Hz to 3 kHz

Incidental ϕM at 30% AM,

AF = 1 kHz, peak value

Modulation input EXT1

Input impedance Input voltage for selected modulation depth High/low indication (10 Hz to 50 kHz)

0% to 100%

<1% <2%

DC to 50 kHz DC to 3 kHz

<3 dB <3 dB

<0.1 rad

>100 kΩ

1 V peak for inaccuracy >3%

Broadband amplitude modulation

Mode external DC

Modulation frequency response

up to 10 MHz up to 30 MHz

Modulation input (broadband AM)

Input impedance Input voltage for 100% AM

<1 dB <3 dB

50 Ω

0.25 V peak

Pulse modulation

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

Frequency modulation with option R&S SM-B5

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

6 Vector Signal Generator R&S SMIQ – Specifications

2 MHz

0.5 MHz 1 MHz 2 MHz 4 MHz

Max. deviation with I/Q modulation

0.3 MHz to 750 MHz

>750 MHz to 1200 MHz >1200 MHz to 3300 MHz >3300 MHz to 6400 MHz

2 MHz 1 MHz 2 MHz 4 MHz

Resolution <1%, min. 10 Hz Setting error at AF = 1 kHz <(3% of setting + 20 Hz) FM distortion at AF = 1 kHz

and half maximum deviation

<0.5%

Modulation frequency range

with maximum deviation at <25% of maximum deviation

DC to 500 kHz DC to 2 MHz

Modulation frequency response

10 Hz to 100 kHz 10 Hz to 2 MHz

<0.5 dB <3 dB

Incidental AM at 40 kHz deviation, AF = 1 kHz, carrier frequency >5 MHz

<0.1%

Carrier frequency offset with FM <0.01% of maximum deviation

+1% of selected deviation

EXT1, EXT2 modulation inputs

Input impedance Input voltage for selected modulation depth High/low indication (10 Hz to 100 kHz)

>100 kΩ 1 V peak for inaccuracy >3%

Phase modulation with option R&S SM-B5

13 )

Modes internal, external AC/DC, two-tone with two modulation

channels PM1 and PM2

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

20 rad 5 rad 10 rad 20 rad 40 rad

Max. deviation with I/Q modulation

0.3 MHz to 750 MHz

>750 MHz to 1200 MHz >1200 MHz to 3300 MHz >3300 MHz to 6400 MHz

20 rad 10 rad 20 rad 40 rad

Resolution <1%, min. 0.001 rad Setting error at AF = 1 kHz <3% of reading + 0.01 rad Distortion at AF = 1 kHz and half maximum deviation <1% Modulation frequency range DC to 100 kHz Modulation frequency response

10 Hz to 100 kHz

<0.8 dB

EXT1, EXT2 modulation inputs

Input impedance Input voltage for selected modulation depth High/low indication (10 Hz to 100 kHz)

>100 kΩ 1 V peak for inaccuracy >3%

Vector Signal Generator R&S SMIQ – Specifications 7

Digital modulation

Digital modulation with optional Modulation Coder R&S SMIQB20

Modes internal, external serial, external parallel Predefined modulation settings APCO C4FM, APCO CQPSK, CDPD, CT2, DECT, GSM, IRIDIUM,

NADC, PDC, PHS, TETRA, TFTS, PWT, ICO BPSK, ICO GMSK,

ICO QPSK, GSM EDGE, CDMA IS-95, WCDMA, QPSK Internal PRBS selectable lengths: 29−1, 215−1, 216−1, 220−1, 221−1 and 223−1 I/Q bandwidth 12 MHz Modulation specifications apply at levels ≤8 dBm (PEP) with R&S SMIQ02B/03B and at levels ≤5 dBm (PEP) with

R&S SMIQ04B/06B Total level uncertainty at levels >−127 dBm with

digital modulation, crest factor <20 dB f ≤2,5 GHz f >2,5 GHz to 4 GHz f >4 GHz

For best short time repeatability use ALL OFF mode table

Clock generation

Clock mode Resolution Error

Inputs DATA, BIT CLOCK, SYMBOL CLOCK, PAR DATA Serial data are taken from BNC connectors, parallel data (symbols) from rear PAR DATA connector. Parallel symbols may

contain 1 to 8 bits and read in using an internal or external clock signal Trigger threshold

Input impedance Max. data rate, serial Max. symbol rate, parallel

Outputs

I and Q baseband signals, output voltage, EMF, peak value Power ramp

Output voltage Output impedance

Level attenuation

via LEV ATT input Range Additional level error caused by attenuation

Envelope control

Modes

Analog

Digital

Operating range 1 kHz to 2.5 MHz

Rise/fall time

Setting range Resolution Minimum time

Modulation modes ASK, FSK, GMSK, PSK, QAM

2) 3)

<0.7 dB

<1.2 dB

<1.5 dB

internal or external

0.001 Hz

−42

, related to reference frequency

−2.5 V to +2.5 V, selectable, resolution 0.01 V

1 kΩ to ground, 50 Ω to ground

30 MHz, 50 MHz typ.

18 MHz

DATA, BIT CLOCK, SYMBOL CLOCK, PAR DATA, (all TTL levels)

2Q2

+1V=

0 V to 1 V

10 Ω

3 )

0 dB to 70 dB

<1 dB (up to 35 dB), <1.5 dB (up to 70 dB)

External via POWER RAMP input (for data see vector modulation

above). With an internal power ramp, the connector serves as an output.

Internal or external via BURST GATE input/output (PAR DATA connec-

tor). The BURST GATE input triggers a power ramp (TTL levels). The

low/high transition starts the ramp function from blanking level to max-

imum level, the high/low transition from maximum level to blanking

level. With an internal power ramp, the connector serves as an output.

0.25 symbols to 32 symbols

1/4 symbol

1 µs

8 Vector Signal Generator R&S SMIQ – Specifications

Baseband filter

Each filter can be used with any type of modulation. Exception: GMSK/GFSK only with

Gaussian baseband filter

√cos (α = 0.1 to 0.99),

cos (α = 0.1 to 0.99), resolution 0.01

Gauss, B x T = 0.15 to 2.5, resolution 0.01

GaussLin, B x T = 0.3

Bessel, B x T = 1.25 and 2.5/ IS-95 with or without equalizer /

special filter for WCDMA, APCO C4FM / special filter for TETRA /

split phase, B x T = 0.15 to 2.5 / rectangular Filter modes low EVM: for minimum error vector

low ACP: for minimum adjacent-channel power

ASK

Symbol rate Modulation depth

100 Hz to 18 MHz

0% to 100%

11 )

, max. 5 MHz

FSK

Modulation modes Symbol rate 100 Hz to 7.5 MHz Shift

Resolution

2FSK, 4FSK, 4FSK APCO, GFSK

11 )

(0.1 to 100) x f

, max. 5 MHz

symb

<0.5% Deviation error, rms value for shift 200 Hz to 650 kHz,

symbol rate

= 0.25 to 0.7 or Gauss with B x T = 0.2 to 0.7

GMSK

Bit rate

1.3 Msymbol/s, filter √cos or cos with

<1.3%

100 Hz to 7.5 MHz

11 )

Modulation phase error with PRBS data,

up to 1 Mbit/s, rms value Peak value

<1°

<3°

PSK

Modulation modes

BPSK, QPSK, OQPSK, QPSK (IS-95), OQPSK (IS-95), QPSK (ICO),

QPSK (INMARSAT), π/4DQPSK, π/4QPSK, 8PSK, 8PSK EDGE Symbol rate 100 Hz to 18 MHz

11 )

Error vector magnitude, rms for filter √cos, cos, IS-95, WCDMA

up to 200 ksymbol/s, α ≥0.25 up to 1.5 Msymbol/s, α ≥0.25 up to 3 Msymbol/s, α ≥0.25

>3 Msymbol/s, α ≥0.25

<1.2%

<2%

<3%

typ. <3%

TETRA ACP

f = (380 to 470) MHz, (915 to 988) MHz, level ≤8 dBm PEP, low distortion output mode

Offset 25 kHz Offset 50 kHz

≤–71 dB, –74 dB typ.

≤–76 dB, –80 dB typ.

QAM

Modulation modes Symbol rate 100 Hz to 18 MHz

16QAM, 32QAM, 64 QAM, 256QAM

11 )

Error vector magnitude, rms with 16QAM for filter √cos, cos, IS-95, WCDMA

up to 1 Msymbol/s, α ≥0.25 up to 3 Msymbol/s, α ≥0.25

<2%

<3%

<3% typ.

>3 Msymbol/s, α ≥0.25

Vector Signal Generator R&S SMIQ – Specifications 9

User mapping

Modulation modes Modulation symbols Coding Range of symbol rate

User baseband filter

Impulse length Oversampling

Modulation coding

via IEEE bus with software User Mod

PSK, QAM, FSK

1 to 8 bit per symbol

differential, phase offset (PSK)

like PSK, QAM and FSK

via IEEE bus with software User Mod

8 or 16 symbols long

3 to 32

differential coding, differential and Gray, GSM, NADC, TETRA,

TFTS, PDC, PHS, differential phase coding, APCO25, PWT,

INMARSAT, VDL

Modulation with coding

The table below shows the possible combinations of modulation with coding (X = combination possible).

Coding

ASK X X X BPSK X X X QPSK X X X X QPSK (IS-95) X X X X INMARSAT X X X X QPSK ICO X X X X OQPSK X X X X OQPSK (IS-95) X X X X

π/4 QPSK X π/4 DQPSK X X X

8PSK X X X X 8PSK_EDGE X X X X 2FSK X X X X 4FSK,

4FSK APCO GFSK X X X X GMSK X X X X 16QAM X X X X 32QAM X X X X 64QAM X X X X 256QAM X X

Differential Differential

off

X X X

phase

Differential

+ Gray

GSM NADC, PDC,PHS,

TETRA,APCO25,

PWT

TFTS/

TETRA

INMARSAT VDL

Data generator (option R&S SMIQB11)

Programmable data memory for modulation data, envelope-control and trigger signals. The data generator can be operated only in conjunction with the optional modulation coder (R&S SMIQB20).

Memory capacity 15 Mbit Max. symbol rate 8.5 MHz Modes automatically repeating, single shot, manually or externally

triggered

10 Vector Signal Generator R&S SMIQ – Specifications

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