2022年，预计全市地区生产总值超过1.2万亿元，一般公共预算收入可比增长8%，固定资产投资增长5%，社会消费品零售总额达到4820亿元。出台助企纾困25条政策，为中小微企业提供担保贷款168亿元，减税退税降费超过1000亿元，帮助3.8万家中小微企业及个体工商户融资527.9亿元，市场主体增至149.7万户。发放消费券2.17亿元，新引进商业品牌首店55家。260个市级重点项目完成投资2320.8亿元。新增进出口实绩企业1656家，预计全年完成进出口2190亿元、同比增长15%左右，跨境电商进出口额增长50%以上。预计全市地区生产总值超过1.2万亿元，一般公共预算收入可比增长8%，固定资产投资增长5%，社会消费品零售总额达到4820亿元。
中国社会科学院数量经济与技术经济研究所与社会科学文献出版社2022年12月13日共同发布的《经济蓝皮书：2023年中国经济形势分析与预测》预计，2023年中国经济增长5.1%左右，呈现进一步复苏态势。具体到地方层面，24座万亿GDP城市中，2023年GDP增速目标，济南是5.5%以上。除济南GDP增速目标与上年持平外，其余5座城市2023年GDP增速目标较上年均有所下调。不过，复苏仍是2023年经济的主旋律，相较于2022年GDP实际表现，2023年的目标仍是乐观的。数据显示，从2022年地区生产总值总量来看，济南预计超过1.2万亿元。
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无线射频&频谱分析仪教育训练系统 |
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| 型 号：GRF-3300 Series |
| 品 牌：台湾固纬GWINSTEK |
| 技术指标：Including Spectrum Analyzer GSP-830 + Tracking Generator(TG), RF Training System GRF-3300S |
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济南无线射频&频谱分析仪教育训练系统-GRF-3300 Series-台湾固纬GWINSTEK
特点
Designed for wireless frequency range applications
Includes a 880MHz Digital PLL and 2.4GHz microstrip line filter circuits
Training for the Voice Communication System
Demonstrates the applications and measurements for using spectrum analyzers in communication instruments
Instructional theory and hands-on experiments for each chapter covering topics in RF systems
Designed for the application of the RF Transmitter and Receiver systems
Specific RF circuit characteristics & PCB Layout on each module
Training system covering 22 modules, and over 50 experiments
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Training Contents
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Sections
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Theory
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Experiment
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Related Applications
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The Fundamentals
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Impedance matching network: L-type, π-type, T-type
Smith chart: theory and practical examples
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Theory explaining
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RF Component Test
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Antenna
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Antenna parameter, antenna structure, antenna type
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Frequency response
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Antenna Design
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Attenuator
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Attenuator parameter, attenuator type, attenuator design
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Attenuation characteristics
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When the Signal is Too Big
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Low Noise Amplifier
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LNA parameter, 1dB compression point, LNA structure
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Input and output return loss, amplifier gain, 1dB compression point
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Small Signal Enlarged
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Preamplifier
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Preamplifier type, preamplifier structure
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Input and output return loss, amplifier gain, 1dB compression point
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Small Signal Enlarged
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Power Amplifier
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Power amplifier frequency characteristics, bias circuit, power amplifier parameter, power amplifier structure
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Gain flatness, 1dB compression point, fundamentals to harmonics ratio
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Power Enlarge
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Filter
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Filter parameter, filter structure: Butterworth, Chebyshev
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Input/output return loss, insertion loss
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EMI filter Design
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Mixer
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Mixer structure, mixer parameter, mixer type
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Conversion gain, 1dB compression point, isolation
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TV Tuner
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Phase Locked Loop
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PLL structure, frequency synthesizer, PLL controller, loop filter, design a PLL
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Frequency response/modulation
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Signal Generator
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Audio Processor
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Audio compression/decompression circuit
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Pre-emphasis, compression characteristics, expander and de-emphasis, decompression characteristics
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Wireless Microphone
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Modulation
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Design and implement a modulation circuit
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Frequency modulation
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Remote Controller
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Demodulation
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Design and implement an FM intermediate frequency demodulation circuit
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IF modulation, RSSI output
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Broadcasting
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Transmitter
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Transmitter parameter, transmitter structure
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Transmission spectrum
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Radio Set
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Receiver
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Receiver parameter, receiver structure
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Receiving signal spectrum, demodulation waveform
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Radio Set
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Voice Demo
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Combine with transmitter & receiver circuits
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Voice communication system
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VoIP
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Microstrip Line Filter
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Transmission line basics, stepped-impedance LPF, coupled line BPF, optimized HPF
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Insertion loss
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RFID
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POWER SOURCE
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AC 110V or 220V, 50/60Hz
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DIMENSIONS & WEIGHT
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GRF-3300S
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428(W) x 90(H) x 303(D)mm for Transmitter & Receiver, Approx. 8.4kg
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GRF-3300K
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560(W) x 170(H) x 530(D)mm, Approx. 7kg
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Ordering Information
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GRF-3300S Package
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Including Spectrum Analyzer GSP-830 + Tracking Generator(TG), RF Training System GRF-3300S
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GRF-3300K Package
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Including Spectrum Analyzer GSP-830 + Tracking Generator(TG), RF Training Kit Sets GRF-3300Kning Kit Sets, 22 modules (12 for receiver and 10 for transmitter systems)
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GRF-3300S(*)
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RF Training System, Two Systems (Transmitter and Receiver)
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GRF-3300K(*)
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RF Training Kit Sets, 22 Modules (12 for Receiver and 10 for Transmitter systems)
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(*)All GRF-3300S/K experiments are based upon GSP-830, we can't guarantee the result almost has its similarity by using other spectrum analyzers of their kinds.
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配件
Teacher book & Student book
50 Terminator
AC Power cord (only for GRF-3300S) x 2
Antenna x 2
DC Power cable (red, black)(only for GRF-3300K) x 10
Microphone
N-SMA Adaptor x 3
Return loss bridge
RF Cable, 10cm x 6
RF Cable, 20cm x 6
RF Cable, 75cm x 3
SMA-SMA Connector
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Ordering Information
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GRF-3300S Package
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Including Spectrum Analyzer GSP-830 + Tracking Generator(TG), RF Training System GRF-3300S
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GRF-3300K Package
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Including Spectrum Analyzer GSP-830 + Tracking Generator(TG), RF Training Kit Sets GRF-3300Kning Kit Sets, 22 modules (12 for receiver and 10 for transmitter systems)
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GRF-3300S(*)
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RF Training System, Two Systems (Transmitter and Receiver)
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GRF-3300K(*)
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RF Training Kit Sets, 22 Modules (12 for Receiver and 10 for Transmitter systems)
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(*)All GRF-3300S/K experiments are based upon GSP-830, we can't guarantee the result almost has its similarity by using other spectrum analyzers of their kinds.
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，频谱分析仪代理，
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