【正文】 due to Switching Transients Average Tx. Power : dBm 2022/4/13 P246602 126 線性化產(chǎn)生的雜散 ? 在 MS 或 BS 處理線性化突發(fā)脈沖過程中都會(huì)產(chǎn)生雜散 – 通過 TETRA 濾波器在 +/25kHz測(cè)量 – 在中頻進(jìn)行峰值功率測(cè)量 – 電平 30dBc – 超 PL最大累積 1ms 2022/4/13 P246602 127 2310 圖形顯示 ACP(線性化 ) 380. 000 000 MHz Channel Frequency Ch. Freq. : 000 MHz Input Level: dBm Bursts to Average: 200 / 200 Ref. Level (dBc) Ref. Level (dBc) dB / div. + DUT: MS (Single) Burst: NUB (TS1) RF I/P : HIGH Trigger: REPEAT Numeric Only Power vs. Time ACP vs. Time 25 kHz ACP vs. Time +25 kHz Average Tx. Power : dBm TETRA Unwanted Emissions during the CLCH time (us) 0 7500 PL PH 2022/4/13 P246602 128 2310 表格顯示寬帶噪聲 380. 000 000 MHz Channel Frequency Ch. Freq. : 000 MHz Input Level: dBm Bursts to Average: 200 / 200 TETRA Wideband Noise Emissions Numeric Only DUT: MS (Single) Burst: NUB (TS1) RF I/P : HIGH Trigger: SINGLE Average Tx. Power : dBm Offset Frequency Measured Value Limit Pass / Fail kHz kHz kHz frb + kHz kHz kHz kHz (frb + kHz) Spectrum at Offset Ref. Level (dBc) dBc / div Meas’ment Setup dBc dBc dBc dBc dBc dBc dBc dBc dBc dBc dBc dBc dBc dBc dBc dBc PASS PASS PASS PASS PASS PASS PASS PASS External Control ? ? 2022/4/13 P246602 129 發(fā)射機(jī)雜散預(yù)掃描 Ref. Level (dBc) Prescan Span Start Freq: MHz Stop Freq: MHz Ch. Freq : MHz Display Span Left Freq : MHz Right Freq: MHz Averages : 0/200 TETRA Emissions far from carrier Markers ON Marker 1 / 2 Add to WB Noise Add to Spurious Marker to Peak Power 380. 684 929 MHz Marker 1 Frequency Mkr. 1 380. 684 929 MHz dBm Mkr. 2 381. 478 929 MHz dBm . 000 kHz dBm 2 1 ? ? 2022/4/13 P246602 130 2310表格顯示互調(diào)衰減 380. 000 000 MHz Channel Frequency Ch. Freq. : 000 MHz Input Level: dBm Bursts to Average: 200 / 200 T3 Offset: 500 000 kHz TETRA Intermodulation Attenuation Average Tx. Power : dBm Interferer Power: dBm Intermodulation Component Measured Value Limit Pass / Fail 2F1 T3 PASS 2T3 F1 3F1 2T3 4F1 3T3 dBc dBc dBc dBc dBc dBc PASS PASS PASS DUT: MS (Single) Burst: NUB (TS1) RF I/P : HIGH Trigger: SINGLE Numeric Only T3 Offset 3rd Order 5th Order 7th Order Channel Frequency, F1 : 000 MHz 3Ft3 2F1 dBc dBc PASS 4T3 3F1 dBc PASS dBc dBc dBc Interferer FrequencyT3 : 000 MHz 2022/4/13 P246602 131 測(cè)試限 Ch. Freq. : 000 MHz Input Level: dBm Bursts to Average: 200 / 200 TETRA Limits Peak Vector Error 10 % ACP (due to modulation) Average Tx. Power NonActive Tx. State Tx. Power Lmin dBc Absolute dBm t1 Max. + dB t3 Max. + dB Max. + dB Min. dB Lmin dBc Absolute dBm 177。 25 kHz dBc 177。 50 kHz dBc 177。 75 kHz dBc Absolute dBm ACP (due to switching) 177。 25 kHz dBc Absolute dBm RMS Vector Error Carrier Freq. Error Residual Carrier 5 % 177。 ppm 5 % Change Limits Limits ON ? ? TETRA Normal TETRA Extreme 380. 000 000 MHz Channel Frequency DUT: MS (Single) Burst: NUB (TS1) RF I/P : HIGH Trigger: SINGLE Recall USER Limits... User Defined 2022/4/13 P246602 132 2310的 FFT分析儀 380. 000 000 MHz Centre Frequency Centre Freq. : 000 MHz Input Level : dBm Span : Averages : 100 / 100 FFT Spectrum Analysis Frequency Standard Centre Frequency Frequency Step Frequency Span Ref. Level (dBm) Noise BW: 440 Hz Window: BlackmanH RF I/P : LOW Trigger : SINGLE 2022/4/13 P246602 133 AEROFLEX其他 TETRA測(cè)試產(chǎn)品 ? 3020A PXI Signal Generator ? 3410 Digital Signal Generator ? TETRALOG TETRA Protocol Analysis 2022/4/13 P246602 134 PXI 3020A RF信號(hào)發(fā)生器 ? 雙槽 3U模塊 ? 頻率范圍 250 MHz GHz ? 輸出范圍 120 dBm to +5 dBm ? 功率分辨率 dB ? 功率準(zhǔn)確度 dB ? 12 MHz IQ 帶寬 ? LVDS IQ輸入 ? 32 M sample dual channel AWG ? 支持 IQCreator 2022/4/13 P246602 135 PXI Trigger Bus PCI Bus Slot 1 controller 3011 RF Synth 3010 RF Synth 3030 RF Digitizer 3020 RF Generator 3060 Combiner 10 MHz Reference LO Feed RF in / out DUT Connection PXI組建收發(fā)信機(jī)測(cè)試系統(tǒng) 發(fā)射機(jī)或接收機(jī)的功率、頻率、調(diào)制和靈敏度測(cè)試 DUT 2022/4/13 P246602 136 3410 系列的主要參數(shù) ? 頻率范圍： – 3412 250 kHz to 2 GHz – 3413 250 kHz to 3 GHz – 3414 250 kHz to 4 GHz – 3416 250 kHz to 6 GHz ? 電平： – 分辨率 dB – 精度 177。 dB – 駐波比 :1 2 GHz, :1 3 GHz, :1 4 GHz – 高功率輸出 +19 dBm CW ? 全面的調(diào)制能力 – 寬帶數(shù)字、矢量和模擬調(diào)制 3410信號(hào)發(fā)生器的 TETRA應(yīng)用 Slide 48 借助 IQCreator軟件可產(chǎn)生用于測(cè)試的標(biāo)準(zhǔn) TETRA信號(hào) 2022/4/13 P246602 138 TETRALOG ? TETRALOG – 手機(jī)協(xié)議捕捉和分析工具 . – 輔助開發(fā)和校驗(yàn) TETRA 終端協(xié)議 – 適用于手機(jī)開發(fā)商 – 與 3920配合使用 ? 工具 – 捕捉和分析手機(jī)協(xié)議處理 – 圖形顯示處理結(jié)果 (MSC’s) – PDU解碼 – 運(yùn)行于 Windows平臺(tái) 2022/4/13 P246602 139 Aeroflex公司 TETRA測(cè)試產(chǎn)品列表 ? 綜合測(cè)試儀 3920 ? 信號(hào)分析儀 2310 ? 矢量信號(hào)源 3410/3020A ? 協(xié)議分析軟件 TETRALOG 2022/4/13 P246602 140 謝謝！ 未盡事宜請(qǐng)致電 AEROFLEX代表處！ Tel. +861065391166108 范瓏