选用二手测量仪器的优势是：
1、与新购仪器几个月的供货期相比，购买二手仪器的供货期要短的多。在时间就是市场的今天，优势无疑是最为明显的。
2、二手仪器的价格便宜，基本为新购仪器价格的20%～50%。在电子技术迅速发展的今天，仪器的更新也在加快，投资越少则风险越小。
3、为了让您放心地使用我们提供的二手仪器，我们销售的二手仪器可以做到：
1、保修半年至一年不等。
2、可以根据您的要求，将仪器送至国家级计量测试单位进行校准。
Tektronix RSA3308A Real-Time Spectrum Analyzer
- DC to 8 GHz
- Seamless Capture of Time-varying, Transient or Periodic RF Signals
- Up to 65.536 Ms (256MB) of Internal Memory Provides for Complete Analysis of Signals Over Time Without Making Multiple Measurements
- Time-correlated, Simultaneous Views of Time, Frequency, and Modulation Domains Provide Greater and Unique Understanding of Signal Behavior.
- Spectrogram Provides a Revealing Picture of RF Signal Frequency and Amplitude Behavior. Over Time
- Frequency Mask Trigger Makes it Easy to Capture Fast, Transient, or Intermittent Signals
- Spectrum Analyzer Mode for Very Wide Span Analyses
- Built-in Demodulators Enhance Analysis of AM, ASK, FM, FSK, and PM Signals
- Digital Demodulator Offers Affordable Vector Signal Analysis
- Outstanding Dynamic Range and Low Phase Noise
Tektronix RSA3408A Real-Time Spectrum Analyzer
- DC to 8 GHz Frequency Range
- All Signals in Spans Up to 36 MHz are Captured into Memory
- Up to 1.28 s Acquisition Length at 36 MHz Bandwidth Provides Complete Analysis Over Time Without Making Multiple Acquisitions
- Fully preselected and image-free at all times for full dynamic range at any capture bandwidth
- Interfaces with TekConnect® Probes for RF Probing
- Differential IQ Input Available
- DPX™ Spectrum Processing Provides an Intuitive Understanding of Time-varying RF Signals with Color Graded Displays Based on Frequency of Occurrence
- Revolutionary DPX Displays Transients with >48,000 Spectrum Measurements per Second
