Model 8640B TM 9-4935-601-14-7&P
PERFORMANCE TESTS
4-42. COUNTER EXTERNAL SENSITIVITY TEST
SPECIFICATION:
External RF Input:
Frequency Range: 1 Hz to 550 MHz
Sensitivity: 100 mVrms, ac only, into 502 (-7 dBm).
DESCRIPTION:
A test oscillator and the Signal Generator's own RF output are used to verify the counter's range and sensitivity.
Figure 4-28. Counter External Sensitivity Test Setup
EQUIPMENT:
Test Oscillator .......................................................................................HP 652A
PROCEDURE:
1. Connect RF OUTPUT to COUNTER INPUT as shown in Figure 4-28 after setting Signal Generator's controls as
follows:
Meter Function..........................................................................................LEVEL
COUNTER MODE: EXPAND ..........................................................................Off
LOCK...............................................................................Off
Source............................................................................ INT
TIME BASE VERNIER .................................................................................CAL
AM................................................................................................................OFF
FM ................................................................................................................OFF
RANGE.........................................................................................256 - 512 MHz
FREQUENCY TUNE..............................................................................550 MHz
OUTPUT LEVEL................................................................................100 VOLTS
RF ON/OFF ....................................................................................................ON
4-70
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com