• 專為無(wú)線頻率范圍的應(yīng)用
• 包括880MHz數(shù)字合成鎖相回路和2.4GHz的微帶線濾波電路
• 包括射頻發(fā)射和接收兩種應(yīng)用
• 語(yǔ)音通信系統(tǒng)的訓(xùn)練
• 演練應(yīng)用和量測(cè)使用頻譜分析儀的工具
• 具體的RF電路的特性及PCB布局在每個(gè)模塊上
• 共有22個(gè)模塊，以及超過50個(gè)試驗(yàn)訓(xùn)練實(shí)驗(yàn)

• Spectrum Analyzer & RF Training System
  
  The GRF-3300S training system is designed for a high frequency range of wireless applications.

  This superior system is equipped with digital phase-locked loop (PLL) and a microstrip line filter (MLF) with a design range from 730MHz up to 960MHz / 2.4 GHz,

  which is increasingly important in the education field. By using the Wireless Voice Communication system, students can practically complement their learning.
  
  The GRF-3300S with the combination of a training syllabus, basic theory, systematic demonstrations, and hands-on experiments make it the perfect match for modern RF communication education.

  The spectrum analyzer used in the training system is not only capable of experimenting with measurement testing, but is also a standard industrial instrument itself,

  making it practical for students to adapt in the occupational field.

Training Contents

Sections

Theory

Experiment

Related Applications

The Fundamentals

Impedance matching network: L-type, π-type, T-type
Smith chart: theory and practical examples

Theory explaining

RF Component Test

Antenna

Antenna parameter, antenna structure, antenna type

Frequency response

Antenna Design

Attenuator

Attenuator parameter, attenuator type, attenuator design

Attenuation characteristics

When the Signal is Too Big

Low Noise Amplifier

LNA parameter, 1dB compression point, LNA structure

Input and output return loss, amplifier gain, 1dB compression point

Small Signal Enlarged

Preamplifier

Preamplifier type, preamplifier structure

Input and output return loss, amplifier gain, 1dB compression point

Small Signal Enlarged

Power Amplifier

Power amplifier frequency characteristics, bias circuit, power amplifier parameter, power amplifier structure

Gain flatness, 1dB compression point, fundamentals to harmonics ratio

Power Enlarge

Filter

Filter parameter, filter structure: Butterworth, Chebyshev

Input/output return loss, insertion loss

EMI filter Design

Mixer

Mixer structure, mixer parameter, mixer type

Conversion gain, 1dB compression point, isolation

TV Tuner

Phase Locked Loop

PLL structure, frequency synthesizer, PLL controller, loop filter, design a PLL

Frequency response/modulation

Signal Generator

Audio Processor

Audio compression/decompression circuit

Pre-emphasis, compression characteristics, expander and de-emphasis, decompression characteristics

Wireless Microphone

Modulation

Design and implement a modulation circuit

Frequency modulation

Remote Controller

Demodulation

Design and implement an FM intermediate frequency demodulation circuit

IF modulation, RSSI output

Broadcasting

Transmitter

Transmitter parameter, transmitter structure

Transmission spectrum

Radio Set

Receiver

Receiver parameter, receiver structure

Receiving signal spectrum, demodulation waveform

Radio Set

Voice Demo

Combine with transmitter & receiver circuits

Voice communication system

VoIP

Microstrip Line Filter

Transmission line basics, stepped-impedance LPF, coupled line BPF, optimized HPF

Insertion loss

RFID

POWER SOURCE

AC 110V or 220V, 50/60Hz

DIMENSIONS & WEIGHT

GRF-3300S

428(W) x 90(H) x 303(D)mm for Transmitter & Receiver, Approx. 8.4kg