低噪声频谱分析仪 HP 3585A

厂家: 美国惠普 (23x42x63cm,39.9 kg)

• 80 dB 动态范围
• 0.1 Hz 分辨率
• 3 Hz 分辨率带宽
• ±0.4 dB 调幅精确度 
• -137 dBm to +30 dBm 电平测量
• 50 Ω, 75 Ω, and 1 MΩ 可选择的输入阻抗
• 1001 x 1024 数字存储显示 
• 带跟踪发生器 
• 自动匹配输入衰减器 
• 面板设置或标记值由CRT读出 
• HP-IB接口

频率

• 测量范围: 20 Hz to 40.1 MHz 
• 频率显示
  范围: 0 Hz to 40.1 MHz variable with 0.1 Hz resolution or 10 Hz to 40 MHz in 1, 2, 5 
  Accuracy: -0% + 0.2% of frequency span setting
• 指示器
  读出精度: ± 0.2% of frequency span ± resolution bandwidth 
  计数精度: ± 0.3% Hz ± 1 X 10-7/month of counted frequency for a signal 20 dB greater than other signals and noise in the resolution for bandwidth setting 
• 分辨率带宽
  范围: 3 dB bandwidth of 3 Hz to 30 kHz in a 1, 3, 10 sequence 
  精确度: ± 20% at the 3 dB points 
  选择性: 60 dB/3 dB <11.1 

调幅

• 测量范围:
  1 MΩ input: -31 nVrms to +7.08 Vrms
  50/75 Ω input: -137 dBm to +30 dBm 
  All receiver inputs can be overdriven by up to 12.3 dB above the range setting, with some degradation in distortion performance.
• 显示范围:
  刻度: 10 division CRT vertical axis with Reference Level at the top graticule line
  校准: 10, 5, 2 and 1 dB/division from the Reference Level
• 输入范围: -25 dBm to +30 dBm in 5 dB steps 
• 参考电平范围(relative to input range): -100 dB to +10 dB 

动态范围

• (接收机)乱真信号响应
  50/75 Ω input: < -80 dB refered to a single signal equal to or less than Input Range
  1 MΩ input: < -80 dB except second harmonic distortion <-70 dB
• 互调失真
  50/75 Ω input: < -80 dB referred to the larger of two signals each 6 dB below Range except 2nd order IM from 10 MHz to 40 MHz <-70 dB
  1MΩ input: < -70 dB Residual responses (no signal at input) <-120 dBm using -25 dBm range
• 剩余噪声: < -120 dBm using -25 dBm range 
• 残留相位噪声(typical at 40 MHz, -10 dBm input)
  5 kHz 偏移量: -112 dBc/Hz
  100 kHz 偏移量: -120 dBc/Hz 

扫频

• 模式: 连续,单一或手工
• 触发: free Run, Line or External 
• 时间: 0.2 s full sweep to 200 s/Hz of Frequency Span (swept time excluding auto calibration cycles)

输入

• 信号输入
  50/75 Ω input: 26 dB return loss,BNC连接器
  1 MΩ input: ± 3% shunted by <30 pF,BNC连接器 
• 最大输入电平
  50/75 Ω input: 13 V peak ac plus dc relay protected against overloads to 42 V peak
  1 MΩ input: 42 V peak ac plus dc (derate by factor of two for each octave above 5 MHz) 
• External Trigger Input negative going TTL level or contact closure required to initiate sweep 
• External Reference Input 10 MHz (or subharmonic to 1 MHz), 0 dBm minimum level

输出

跟踪信号发生器

• 电平: 0 dBm to -11 dBm with a single turn knob
• 频率精度: ± 1 Hz relative to analyzer tuning 
• 频率响应: ± 0.7 dB
• 阻抗: 50 Ω; > 14 dB return loss
• 探头功率: +15 Vdc, -12.6 Vdc; 150 mA max 
• 中频: 350 kHz, -11 dBV to -15 dBV at the reference level
• 视频: 10 V at the reference level 
• 频率参考: 10.000 MHz ± 1 X 10 -7/month, +10 dBm into 50 Ω 

工作环境 

• 工作温度: 0°C to 55°C 
• 湿度: < 95% RH except 300 Hz BW <40% RH 
• 预热时间: 20 minutes at ambient temperature 
• 电源： 
  115 V (+11& - 25%), 48-440 Hz 
  230 V (+11%-18%), 48-66 Hz
  180 watts 3A max