HP E42 manual A Counter Specifications, Channel C Time Base, Trigger level 0 volts

Model 5328A

General Information

Table 7-3. 5328A Counter Specifications (Continued)

CHANNEL C	TIME BASE
Input Characteristics	Outputs: 1 MHz and 10 MHz available at rear
Range: 30 MHz to 500 MHz direct count	panel BNC in standby and operate modes
Sensitivity: 15 mV rms, 30 MHz—500 MHz	Output level: 1 volts rms into 50f)
Trigger level: 0 volts	External Input: Operates from 1, 2.5, 5, and 10
Impedance: 50fl nominal	MHz inputs at 1V rms.
Maximum Input: 5 volts rms	Input impedance 1 K~l<30 pF
Input protection: Input BNC fused; accessible	Counter automatically switches to
from front panel. protected to 200 volts peak.	external mode when external input is
overload Indicator: flashing indicator warns	present.
of potential overload conditions.	Oscillator Aging Rate: <5x1010/day after
Resolution: 1 MHz to 0.1 Hz in decade steps	24-hour warmup. Oscillator oven is
Accuracy: ±1 count ± time base error	energized when power cable is connected
Display: Hz, kHz, MHz	to line voltage.

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