参数：
Range
0. 1 Hz - 3.5 GHz
Frequency
√
Totalize
Period
Time Base Stability
±1ppm
Best Resolution
1 nHz
No. of Digits
9
Display Hold
Low Pass Filter
Sensitivity
30 mV (0. 1 Hz - 100 MHz),
15 mV (80 MHz - 2 GHz),
20 mV (2 GHz - 3.0 GHz),
30 mV (3.0 GHz - 3.2 GHz),
50 mV (3.2 GHz - 3.5 GHz),
Remote Interface
RS232
Self-Test
Weight
5.5 lbs (2.5 g)
Dimensions (W x H x D)
9.4” x 3.5” x 10.6” (239 x 89 x 269 mm)