HP 11793A manual Performance Tests Description, Equipment

Microwave Converter Model 1 1793A

24.Performance Tests Description

Performance testing consists of a general functional check to verify the instrument down-converts and switches RF paths properly. Since the Microwave Converter is designed to operate with specific HP instrumentation, no substitution is recommended.

Equipment
Measuring Instrument	HP 8901B or HP 8902A
Sensor Module	HP 1 1792A
Microwave LO Source	See Table 4
Microwave Signal Source	HP 8673B (up to 26 GHz Amplifier)

	HP 8673B Option 008 (up to 26 GHz,
	(w/o Amplifier)
	HP 8672A Option 008 (up to 18 GHz,
RF Signal Source	w/o Amplifier)
	HP 8642B, HP 8660C/86602B, HP 8662A, HP 8663A
Procedure

1.Connect the equipment as shown in Figure 3. Set the two microwave sources to CW. Set the microwave signal source to 0 dBm.

NOTE

Check that the measuring instrument's RF Power calibration factors match the sensor module. The measuring instrument must be in frequency offset mode in order to enter the RF Power calibration factors into the Frequency Offset mode RF Power Cal Factor Table.

2.Set the microwave LO source frequency and level as listed in Table 6. Performance Tests Znstrument Settings. For each setting, perform the following steps:

a.Set the frequency of the microwave signal source as listed.

b.On the measuring instrument, key in 27.3 SPCL. Key in the frequency of the microwave LO source (in MHz), then press the MHz key.

c.On the measuring instrument, measure RF frequency and RF Power (in that order). The measuring instrument's display should read as indicated in table 6. (The listed frequency is a nominal value.)

3.Set the RF signal source to 1270 MHz. and level -10 dBm.

4.On the measuring instrument, key in 27.3 SPCL and enter 0 MHz. This leaves the measuring instrument in frequency offset mode with 0 MHz offset. Measure RF Frequency and RF Power (in that order).

12