| 特点 ·数字微波连接延迟和幅度表征 ·空间多样性传播时间差计算 ·四种信号测量三级谐波的内调制畸变 |
| End-to-end measurement |
Frequency range | 70±25MHz(70MHz band),140±60MHz(140MHz band) |
| Amplitued characteristics | Measurement range:0 to 40dB Display sensitivity:0.05 to 5dB/div(1-2-5 sequence) Internal deviation:≤0.1dB(70±25MHz),≤0.3dB(140±60MHz)*Input level at 0dBm |
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| Delay characteristics | Measurement range:0 to 400ns Display sensitivity:0.1 to 50ns/div(1-2-5sequence) Internal deviation1*1:≤0.5ns(70±25MHz)≤1ns(140±60MHz) Noise^*1:0.2ns-rms |
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| Delay time difference between 2 propagation routes | Measurement range:-200 to +200ns Display sensitivity:0.5 to 50ns/div(1-25sequence) Internal deviaiton^*1:≤0.5ns(70±25MHz),≤1ns(140±60MHz) Noise^*1:0.5ns-rms |
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| Return loss measurement | Measurment range:10 to 50dB(However,measurement accuracydepends on return loss bridge used) Display sensitivity:1 dB/div,2dB/div,5dB/div Internal deviation:0.5dB(45±95MHz),1dB(80±200MHz)*Return loss bridge deviationomitted. |
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| Loop-back measurement |
Amplitued characteristics | Measurement range:10 to 40dB Display sensitivity:0.05 to 5dB/div (1-2-5sequence) Internal deviation:0.3dB(10 to 45MHz),0.4dB(45 to0MHz),0.8dB(200 to 300MHz) *Input level at 0dBm |
| Delay characteristics | Measurement range:-200 to +200ns Display sensitivity:0.1 to 50ns/div(1-2-5sequence) Internal deviation^*1:≤0.5ns(45 to 95MHz)≤1ns(80 to0MHz) Noise ^*1:0.5ns-rms |
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| General | Input/output connector:BNC (SP-type connector also available.Pleasespecify when ordering.) Power:*2Vac+10/-15%,50/60 Hz.≤320VA(Transmitter:≤110VA,Receiver:≤210VA) Operating temperature range:0° to 50℃ Dimensions and mass:426(W)*177(H)*351(D)mm,≤17.5kg(Receiver) 426(W)*88(H)*351(D)mm,≤9.5kg(Transmitter) EMC*3:EN55011(1991,Group 1, Class A)EN50082-1(1992) Safety:EN61010-1;1993(Installation Category Ⅱ,Pollution Degree Ⅱ) |
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| End-to-end measurement |
Frequency range |
70±25MHz(70MHz band),140±60MHz(140MHz band) |
| IF input | Level range:-30 to +20dBm Permissible C/NO ratio of AFC capture:≤86dBc/Hz*(temperature range+20°to+30℃) Level display:3 digits on CRT(resolution:0.1dB) Level display accuracy:±0.5dB(at 70/140 MHz,0dBm) Input signal sweep width:±(0.5 to 25),MHz [70 MHz band],±(0.2 to 60) MHz[140MHzband] Impedance:75Ω,Return loss:26dB(at 0 dBm) |
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| Frequency marker |
Center marker Frequency range:45 to 95MHz(70MHz band),80 to0MHz(140MHz band) Display resolution:10kHz Frequency accuracy:±500kHz(at ±1MHz input signal sweep width) Side marker Frequency range:±(0 to 25) MHz[70 MHz band],±(0 to 60)MHz] Frequency accuracy:±(5% of sweep width+100kHz) |
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| Demodulation of FM |
FM signal frequency to be demodulatedDelay characteristics measurement range:50 to 500kHz-rms |
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| Auxiliary IF input | Input level:-30 to +20dBm(on 2 route propagationdelay time measurement),-60 to -20 dBm(on return loss measurement) | |
| Screen horizontal axis phase adjustment |
LINE:0°to 60,AUTO:≥10° | |
| Trace blanking |
Fly back time blanking of measured tracepossible | |
| Normalizing function | Averaging,A-B,display hold | |
| Spectrum measurement |
Cener frequency |
Range:10kHz to 300MHz Display resolution:1/100 of span(/div)or 0.1kHz whichever is greater. Display accuracy:±(E+5% of full frequency +10% of resolution bandwidth) *Where ,E=3kHz(span:1 to0kHz/div)or E=30kHz(span:210 kHz/div to 30MHz/div) Setting:Ten key pad,unit key rotary dnob step key |
| Frequency span |
Measurement range/resolution Besides shown on the left 0Hz setting also possible for ten key pad 10 kHz/div to 30MHz/div is for stepkey setting.(1-2-5 sequence,30MHz/div) Permissible C/N ratio of AFC capture:≤86dBc/Hz(temperature range+20°to +30℃) Display accuracy:5%(5 to 30MHz/div)±10%(10kHz to 4.9MHz/div) Settings:Ten key pad unit key rotary knob step key |
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| Start/stop frequency |
Display resoltuin :1/100 of span(/div)or 0.1kHz whichever is greater Display accuracy:±(center frequency dispaly accuracy+10% of full frequencyspan) Setting:Ten dey pad,unit key,step key. |
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| Zero marker | DELTY(Δ):Indicates frequency and level differences between two markers ZONE->PEAK:Center of ZONE marker moves to trace peak and indicates itsfrequecny and level ZONE->CENTER:Sets center frequecny to that indicatied as the marker frequecny ZONE->OFFSET:Sens offset level to that indicated by the marker Marker indication accuracy:±(5% of full frequency span+10% of resolutionbandwidth+E) *Where E=3kHz (span:10 to0kHz/div)or E-30kHz(span:210kHz/div to 30MHz/div) Display resolution:Frequency;1/100 of span(/div)or 0.1kHz whichever is greaterlevel;0.1dB |
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range(3 dB bandwidth) |
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| Input attenuator setting range |
CRT display:Vertical axis;8 div(uppermost scale line used as feference level) Scale:10dB/div (0 to -70dB from reference level),5 dB/div(0 to -40dB fromreference level) 2dB/div(0 to -16dB from reference level),1dB/div(0 to -8dB from referencelevel) |
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| Two signal 3rd interm- odulation disortion |
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| Video bandwidth |
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| Sweep time | 10ms/div to 10s/div(manually or automaticallyset according to frequency span resolution bandwidth or video bandwidth) | |
| Sweep trigger |
FREE,RUN,LINE,VIKEO | |
| Normalizer function | Averaging,MAX HOLD,A-B | |
| Loop-back measurement | Frequency range |
10 to 300MHz |
| Input level range | -30 to +20 dBm | |
| Marker | Marker frequency accuracy:±(5% of full frequency sapn+E) *Where E=20kHz(span :10 to0kHz/div or E=200kHz(span:210kHz /div to 30MHz/div Display resolution Frequency:1/100 of frequency span(/div)or 0.1kHz whichever is greater Level:1/10 of scale(/div)or values shown below Amplitude characteristics:Minimum 0.01dB Delay characteristics:Minimum 0.01ns |
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| Demodulation of FM | Delay characteristics measurement range:50 to 500kHz-rms |
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| Other funtions | Mask(specification line)display:Specificationlines can be set and displayed on CRT screen Measurement condition memory:Up to tem sets ofmeasurement conditions canbe saved and recalled. Screen graphic memory:Up to 30 sets of graphic informatioc(title measureemntconditions measured trace)can be saved and recalled Mask memory:Up to 10 sets of mask data can be saved and recalled Hard copy:Screen graphic information can be output to external printer viaGPIB(talk only mode) Title copy:Titlt of up to 38 charcters can ge set and display on CRT screen Time display:Yer,month day hour minutes can be displayed on CRT screen CRT brigtness adjustment:CRT brightness setting possible External control:GPIB(IEEE488)All functions can be controlled except opwerswithc and horizontal axis phase adjustment.) |
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| IF signal | Frequency | Range:45 to0MHz Display:Digital 5 digits,LED(resolution:10kHz) Accuracy:±(20kHz +0.1% of sweep width) |
Display:Digital 3 digits,LED,Display resoution,10 kHz[±(0 to 9.99) MHz]or100kHz[±(10 to 60) MHz] Accuracy:±5% |
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| Output level | Display:Digital 3 digits,LED(resolution:0.1dB) Accuracy:±0.3dB(70/140MHz,at 0 dBm output) |
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| ±(0 to 0.1) dB/10 MHz sweep width(at 0 dBmoutput) | ||
| Harmonics | ≤-30dB(at +10dBm output) | |
| Output impedance | 75Ω,≥26dB(at 0 dBm output) | |
| Sweep signal | Frequency:AC mains frequency,70Hz,18Hz externalsignal frequency(18 to 70MHz) Display:LED Frequency accuracy:±10% Waveform :sinusoidal |
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| Frequecny modulation | Modulation frequency Frequency accruacy:±1*10^(-5) Deviation:0 to 995kHz-rms Display:Digital 3 digits,LED,Resolution:1 kHz(at 0 to 99kHz-rms)or 5kHz(at100 to 995kHz-rms) |
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| IM3 measuremetnt signal |
Output signal | |
| Frequency | Display:Digital 5 digits LED(resolution:10kHz) Accuracy:±5*10^(-5) |
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| Output level | Range:-60 to +0 dBm(per single wave) Display:Digtal 3 digits LED (resolution:0.1dB) Accuracy:±1.0dB(at 0dBm) Level adjustment:Greater than the range of ±2.5dB(Each siganl level canbe adjusted separately) |
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| Spurious | Harmonics:≤-50dB(for a output signal at0 dBm IM3 spurious:≤-60dB(twooutput signal at 0dB frequency interval:≥1MHz) |
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| Digital sweep | Output signal:Two sweep signal one fixedfrequency signal (adjustable frequency) Center frequency Range:55 to 85MHz(70MHz band)110 to 170 MHz(140MHz band) Display:Digital 5 digits,LED (resolution:10kHz) Sweep width Range:±(0 to 15),MHz[70 MHz to band] ±(0 tp 30)MHz[140MHz band] Display:Digital 3 digits LED (resolution:100kHz) Frequency difference between two signals:0 to 5.0MHz(tesolution:100kHz) |
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| Output impedance | 75Ω return loss:≥20dB(at -10dBm) | |
| Loop-back measurement signal |
Frequency range | 10 to 300MHz |
| Output level | Range:-50 to +10dBm Display level:Digital 3 digits,LED Reslution:0.1dB Accuracy: ±1dB(70/140 MHz,at 0 dBm output) |
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| Harmonics | ||
| Output impedance | 75Ω,return loss(at 0 dBm output):≥26dB(10to0MHz);≥20dB(200 to 300MHz) | |
| Other functions | Measurement condition memory:Up to 10 setsof measurement conditions can be saved and recalled. External control:GPIB(IEEE488).All functions of apnel settings except powerswitch can be controlled. |
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