特点
·频率范围:20Hz~26GHz
·用于尖端ACPR测量的超宽动态范围的频谱分析
·用于W-CDMA的75dB ACPR动态范围
·用于通道选择的在4.096MHz合成带宽下的82dB ACPR
·高灵敏度滤波器
·分辨贷款1Hz~10MHz,1/2/3/5步进
·1Hz~1kHz RBW的快速测量的FFT滤波器
·在10Hz带宽时的显示平均噪底为-150dBm
技术指标
Aging per day | 1.10-9 | |||
Aging per year^1) | 2.10-7 | |||
Marker resolution | 0.1Hzto 10kHz(dependent on span) | |||
Frequency counter resolution | 0.1Hzto 10KHz(selectable) | |||
Displayrange for frequency axis | 0Hz,10Hzto full span | |||
Display range with digital demodulationNumber of displayed symbols |
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Symbolrade≤1Mhz | max.1600 symbols(4points per sym-bol) | |||
Symbol rate>1MHz to <3.2MHz |
1/2x symbol rate/MHz*1000sym-bols in steps of 100 symbols |
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Symbolrate≥3.2MHz | max.1600 symbols(4points per sym-bol) | |||
Display range with analog demodulation | (3500/demodulationbandwith/Hz)s | |||
Sweep | ||||
Display range 0Hz | 1μs to2500s in 5% steps | |||
Display range≥10Hz | 5msto 16000 s in steps≤10% | |||
Sampling rate | 50ns(20Mhz A/D converter) | |||
Numberof pixels(x axis) | 500 | |||
Resolution bandwidths with spectrum display | ||||
Anglog filter | ? | |||
3dB bandwidths | 1Hz to 10MHzin 1/2/3/5 steps | |||
Shape factor60:3dB | ||||
<1kHz | <6 | |||
1kHz...2MHz | <12 | |||
>2MHz | <7 | |||
Video bandwidths | 1Hzto 10MHz in 1/2/3/5steps | |||
FFT filter | ? | |||
3dB bandwidths | 1Hzto 1kHz in 1/2/3/5 steps | |||
Shape factor 60:3dB | 2.5nominal | |||
Max.display range | 100dB | |||
Inherent spurious response | <-100dBm | |||
Level | ? | |||
Display range | noise floordisplayed to 30dBm | |||
Maximum inputlevel RF attenuation 0dB | ||||
DC voltage | 0V | |||
CW RF power | 20dBm(=0.3W) | |||
Pulse spectral density | 97dBμV/MHz | |||
RF attenuation≥10dB | ||||
DCvoltage | 0V | |||
CWRF power | 30dBm(=1W) | |||
Max.pulse voltage | 150V | |||
Max.pulse energy(10μs) | 1mWs;0.5mWs | |||
1dB compression of input mixer(0 dB RF attenuation) | ||||
Intermodulation | +10dBmnominal | |||
Second harmonic intercept | ||||
point (SHI) |
>25dBm,typ.>35dBmat f<150Mhz >40dBm,typ.>45dBm at f>150MHz |
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Leveldisplay | ||||
Screen |
500*400pixel(one diagram),max. 2 diagrams with independent settings |
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Loglevel axis | 10 to 200dB,in steps of 10dB | |||
Linear level axis |
10%of reference level per level divi-sion, 10 divisions or logarithmic scal-ing |
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Trace |
max.4(withtwo diagrams on screen,max. 2 per diogram);quasi-analog display of allresults |
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Trace detector |
MaxPeak,Min Peak,Auto Peak(Normal), Sample,RMS,Average |
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Tracefunctions | Clear/Write,Max Hold,Min Hold,Average | |||
Setting range of reference level | ||||
Logarithmiclevel display | -130dBm to 30dBm,insteps of 0.1dB | |||
Linear level display | 7.0nVto 7.07V in steps of 1% | |||
Unitesof level axis | dBm,dBμV,dBmV,dBpW(loglevel display)V,A,W,dBμA(linear level display) | |||
Totalmeasurement (0 to -50dB,S/N>15dB,span/RBW<100)(95% confidence level) |
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<2.2GHz | <1dB | |||
2.2Ghz to 3.5/7Ghz | <1.5dB | |||
7Ghz to 18Ghz | <2.5dB | |||
18Ghz to 26.5Ghz | <3dB | |||
Measurement of digital modulation signals | ||||
Modulation formats | ||||
BPSK,QPSK,OffsetQPSK,DQPSK,л /4DQpsk,8psk,16QAM,MSK,GMSK,2FSK,2GFSK,4FSk,4GFSK |
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Selectable Standards | ||||
W-CDMA,Q-CDMA(IS-95)Forward/reverse,GSM,NADC,TETRA,PDC,PHS, CDPD |
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Filters | ||||
Filtering | raisedcosine,square root raised cosine,Ganssian | |||
Settingrange α/B*T | 0.2 to 3 in steps of 0.01 | |||
Filters to specific standards | ||||
FLEX | Besse B*T=1.22 and 2.44 | |||
ERMES | BesselB*T=1.25 | |||
CDMA(IS 95) | forwardand reverse channel | |||
APCO 25FM | ? | |||
Symbol rate | ? | |||
Symbol rate |
320Hzto 6.4Mhz (symbol rade*(1+α)<8MHz |
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Samples/symbol | ? | |||
Symbol rate≤200kHz | 1,2,4,8,16 | |||
200kHz | 1,2,4,8 | |||
Symbol rate>400kHz | 1,2,4 | |||
Synchronization | internalto symbol clock andfrequency/phase | |||
Levelmeasurements with digital demodulation | ||||
Peak powerrange | -60dBm to +30dBm | |||
Absolutelevel errorMean power(0dB to -10dB below reference level) | ||||
f≤2.2GHz | 1dB | |||
2.2GHz to 7Ghz | 1.5dB | |||
7Ghz to 18Ghz | 2.5dB(FSIQ7/26) | |||
18Ghz to 26.5GHz | 3dB(FSIQ7/26) | |||
Dynamic range for burst measurement | ||||
(meanpower ,ref.level≥10dBm, power=ref.level+1dB, low-noise mode,points/symbol<4, nominal values |
W-CDMA 60dB GSM 74dB NADC 78dB TETRA 79dB |
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Timereference(nominal) without clock synchronization MSK/GMSK modulation, PSK/QAM/FSK modulation with clock synchronization |
<1/(2*symbol rate.points/symbol) <1/(2*symbol rate) <0.001*1/(symbolrate) |
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Residual error in modulationmeasurement | ||||
(data valid for level from referencelevel to reference level -6dB,S/N>60dB,α/BT=0.3 to 0.7,number of demodulatedsymbols >100,averaging≥10,analog bandwidth>10*symbol rate,input frequency >15*symbol rate,local suppression at 0Hz input frequency adjusted), symbolrate(1+α)≤8MHz |
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Frequency error | ±(symbolrate*5*10^-6+0.1Hz+reference error*carrier frequency) | |||
I/Qoffset error | 0.2%(-54dB) | |||
Errorwith modulation standard | ||||
GSM900/1800/1900 |
phaseerror≤0.5°rms, typ.<1.5° peak |
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NADC,CDPD | EVM≤0.5°rms,typ.<1.5%peak | |||
TETRA,PDC,PHS | EVM≤0.7°rms,typ.<2%peak | |||
PWT | EVM≤1°rms,typ.<3%peak | |||
IS-95 CDMA, |
forward/reversechannel p factor≥0.9995 |
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W-CDMA | EVM≤1.8%rms,typ.<5%peak | |||
Measurement of analog modulation signals | ||||
Demodulationbandwidth | ||||
Realtime demodulation | 5khzto 200kHz in steps of 1,2,3,5 | |||
Offlinedemodulation | 5kHz to 5MHz insteps of 1,2,3,5 | |||
Demodulation length (max.sweeptime) |
3500/(demod.bandwith/Hz)s | |||
Readout | ? | |||
Trace with AF signal,carrier power (Am DC-coupled),or modulationsumma-ry(table)with numerical display of :peak and rms values of modulation depthsor deviations of main demodulation; SINAD value 1kHz(only with realtime demodulation);AFfrequency;carrier power;peak values of incidental modulation |
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Thefollowing specifications are valid for demodulation bandwidth≤2MHz,resolutionbandwidth≤2MHz,resolution bandwidth≥5*demodulation bandwidth,RF input level≤-10dBm,referencelevel setting=peak input level+0 to +6dB. | ||||
Amplitudedemodulation | ||||
Range | upto 100% | |||
AF | ? | |||
Offline demodulation | 0.001to 0.2*demod.BW | |||
Realtie demodulation |
30Hzto 0.2*demod.BW, max.20kHz |
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Frequencydemodulation | ||||
Deviation range | max.0.4*demod.BW | |||
AF | ? | |||
Offline demodulation | DC/0.001to 0.2*demod.BW | |||
Realtime demodulation |
DC/30Hzto 0.2*demod.BW, max.20kHz |
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Phase demodulation | ? | |||
Deviation range | upto 10 rad | |||
AF | ? | |||
Offline demodulation |
DC/0.001to 0.1*demod.BW <(0.4*demod.BW)/(phase devia-tion/rad) |
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Realtimedemodulation |
200Hz to 0.1*demod.BW,max. 15kHz<90.4*demod.BW)/(phasedeviation/rad), smaller limit values apply |
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Measurementof unmodulated carrier power | ||||
Measurement error, (ref,level to ref.level-30dB) |
1.5dB |
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SINAD measurements | ||||
Realtimedemodulation | ||||
AF=1kHz±4*10^-4*demod.BW Error with 6 to 54 dB SINAD |
±1dB +error due to demodulator SINAD |
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Displayof AF frequencies | ||||
Range | ||||
Offline demodulation | 0.001to 0.3*demod.BW | |||
Realtime demodulation |
30Hzto 0.3*demod.BW, max.20kHz |
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Resolution | 1mHzto 1Hz | |||
Error(S/N≥40dB) | 1.10^-6*demod.BW+errorof refer-ence frequency_1mHz±1 digit | |||
AF filters | ? | |||
Realtime demodulation | ||||
Lowpass | 3kHz,15kHz(Butterworth,12dB/oct.) | |||
Highpass | 30Hz,300Hz(6dB/oct.)) | |||
Weighting filters | CCITT P.53,Cmessage | |||
Offline demodulation | ? | |||
Lowpass | 5%,10%,25% ofdemod.BW,(12dB/oct.) | |||
Audio demodulation | ||||
Modulation modes | AM and FM | |||
Audio output | speakerand phone jack | |||
Marker stop time in spectrum mode | 100msto 60s | |||
Squelch | adjustablewith level line | |||
Trigger functions | ||||
Trigger Span≥10Hz Span=0Hz |
freerun,line,video,Rf level,external plus pretrigger,posttrigger,trigger delay |
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with digitaldemodulation |
plusburst trigger and synchronization to bit sequence(max.32 symbols) |
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with analog demodulation | plustrigger to demodulated AF | |||
Gated sweep,trigger source | external,RFlevel | |||
Gate delay | 1μsto 100s | |||
Gate legth |
1μsto 100s,resolution min.1μs or 1% of gate lenth |
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Errorof gate length | μ(1μs+(0.05%*gatelenth)) | |||
Inputs and outputs(front panel) | ||||
RF input | Nfemale,50Ω | |||
FSIQ26 only | adaptersystem,50Ω,N/3.5mm male and female | |||
VSWR(RFattenuation>0 dB) | <1.5(f<3.5GHz) | |||
Attenuator | 0dB to 70dB,switchablein 10dB steps | |||
Probe power supply | +15/-12.6VDC,max.150mA | |||
Supply and coding connector | ||||
for antennas,etc) | ±10V,max.100mA,ground | |||
AF output | Xout=10Ω,JK34jack | |||
Reference frequency Output,usable as input |
BNC female,10MHz,10dBm nom. |
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Input | 1Mhzto 16MHz,>0 dBm from 50Ω | |||
Sweepoutput | BNC female,0V to +10V,propor-tionalto displayed frequency | |||
Power supply for noise source | BNCfemale,0v and 28V,switched | |||
Externaltrigger/gate input |
BNCfemale,>10kΩ -5V to +5V,adjustable |
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IEC/IEEEbus remote control | IEC 625-2(IEEE 488.2),SCPI1994.0 | |||
Serial interface | RS-232-C(COM1and COM2) | |||
Mouse interface | PS/2compatible | |||
Printer interface |
parallel(Centronics compatible)orsprial (RS-232-C) |
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Keyboard connector | 5-pinDIN female for MF2 keyboard | |||
Userinterface | 25-pin Canon female | |||
Connector for external monitor(VGA)15-pin female | ||||
3rd-order intermodulation | ||||
Intermodulation-free dynamic range,level2*-20dBm,△f>5*RBW or10kHz,whichever is the greater value |
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FSIQ26 |
>74dBc for f>150MHz(TOI>17dBm,typ.22dBm) >60dBc for f>7Ghz(TOI>10dBm) |
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Displayedaverage noise level (DANL) | ||||
(0dB RF attenuation,RBW10Hz,VBW=1Hz,20averages,trace average span 0Hz,termination50Ω) |
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VBW=1Hz,20 averages,trace average span 0Hz,termination50Ω) | ||||
? | FSIQ3 | |||
Frequency:20Hz | <-80dBm | |||
1kHz | <-110dBm | |||
10kHz | <-125dBm | |||
100kHz | <-135dBm | |||
1Mhz | <-145dB,typ.-150dBm | |||
10GHz to 6Ghz | <-145dBm, | |||
6Ghz to 7Ghz | - | |||
7Ghz to 18Ghz | - | |||
18Ghz to 26.5GHz | - | |||
Maximum dynamic range | ? | |||
1dB compression to DANL(1Hz) | ||||
170dB | 165dB | |||
Inherent error on modulation measurements | ||||
General modulation modes(except FSK) | ||||
Error vector magnitude(EVM)and magnitude error(f<1Ghz)^1) | ||||
symbol rate^1) | FSIQ26 | |||
≤30kHz | 0.7%rms | |||
30kHz to 300kHzq | 1.4%rms | |||
300kHz to 1MHz | 2.8%rms | |||
1Mhz to 4.2Mhz | 2%rms | |||
4.2MHz to 6.4MHz | 2.4%rms | |||
Phase error(f<1GHz)^2) | ||||
Symbol rate | ||||
≤30kHz | 0.4°rms | |||
30kHz to 300kHz | 0.7%rms | |||
300kHz to 1MHz | 2%rms | |||
1Mhz to 4.2Mhz | 2%rms | |||
4.2MHz to 6.4MHz | 2.8%rms |
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