HP manual KHz to 100 MHz Sensitivity for HP 53181A, Channels 1 Frequency Sensitivity Test Setup

1

Chapter 1 Performance Tests

Test 2: Channel 1 Frequency Sensitivity (HP 53181A Only)

100 kHz to 100 MHz Sensitivity for HP 53181A

1Connect the equipment as shown in Figure 1-12 with the signal generator connected to Channel 1 of the Counter.

		Input
		(rear panel)
		BNC Tee
		HP 8663A
	50Ω	Synthesized Signal Generator
	Feedthrough
HP 53181A	Ref. In
	(rear panel)
Counter

Channel 1 Output

N-to-BNC

Connector

Figure 1-12. Channels 1 Frequency Sensitivity Test Setup

2Set the HP 8663A Signal Generator to output a 100 kHz, −35.0 dBm sine wave signal (−20.0 dBm for Option 060) to the Counter’s

Channel 1 input.

3In 0.1 dB steps, increase the power level until the Counter displays a stable reading of 100 kHz.

The Counter should display 100 kHz when the signal generator level is ≤ −21.0 dBm (20 mVrms). Counters with Option 060 Rear Terminals should display 100 kHz when the signal generator level is ≤ −9.5 dBm (75 mVrms).

1-52 Assembly-Level Service Guide