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ESVB测量接收机，大屏幕显示器系列，60分贝甚至准峰值和平均指示; 70民建联/的DVB信号测量分贝不改变输入衰减
1固定调整和5跟踪预选滤波器，可以选择4个附加的固定调谐滤波器
ESVB接收机—到1/2.05GHz receveir 20MHz的，在数字音频和视频广播网络的覆盖面测量民建联，DVB - T的性能。

品 牌：德国罗德与施瓦茨 | R&S | Rohde&Schwarz


Large display range, 60 dB even for quasi-peak and average indication; 70 dB for DAB/DVB signal measurements without changing input attenuation


1 fixed-tuned and 5 tracking preselection filters, optionally 4 additional fixed-tuned filters


Crystal-stabilized synthesizer as 1st local oscillator, variable in 100 Hz steps, sweep mode for fast frequency scanning; frequency accuracy complying with GSM recommendations


IF filters (10 kHz,120 kHz, 300 kHz) with optimized group delay in the third IF stage; additional 1.5 MHz and 8 MHz channel filters for DAB/DVB (SAW filters type).


I/Q demodulator (1.5/4 MHz bandwidth per demodulated channel); I/Q demodulator for narrow-band IF filters included in ESN-B1 (bandwidth = 1/2 IF bandwidth)


Other Info: 
With a bandwidth of 1.5 MHz and 8 MHz matching the DAB/DVB-T channel, ESVB is able to cover the entire COFDM spectrum. The power of the total spectrum at the receiver input is the measure of DAB/ DVB-T coverage. Due to the addition of very many carriers with pseudorandom phases, the DAB/DVB-T signal behaves like white noise within the transmission bandwidth, so that only the RMS measurement method is suitable for determining the power. A thermal power meter is inadequate for measurements because of the speed. Therefore, the ESVB features an RMS detector allowing the power at the receiver input to be indicated very quickly and over a wide range.

 

有意者请：

深圳市微普测电子有限公司 陈丙州-