Front and Rear Panel Features

Rear-Panel Features

 

PRESEL TUNE OUTPUT provides a signal to control external preselected mixers if

 

External Mixing (Option AYZ) is installed.

11

Card Slot Identification Numbers. Refer to Table 2-6. and Table 2-7. for

 

card slot versus option card compatibility information.

12

10 MHz REF IN accepts an external frequency source to provide the 10 MHz, − 15

 

to +10 dBm as a timebase.

 

 

NOTE

It is not necessary to connect the 10 MHz REF OUT to the 10 MHz REF IN on the

 

rear panel of the analyzer. Doing so will result in a Frequency

 

Reference Error message.

 

 

13

10 MHz REF OUT provides a 10 MHz, 0 dBm minimum, timebase reference

 

signal.

14

Power On Selection selects an analyzer power preference.

The PWR ALWAYS ON setting turns the analyzer on whenever external power is applied. This mode is useful if an external power switch is used to control a rack of several instruments. Nevertheless, if you set the analyzer to standby using the front panel Standby key (see Figure 2-1. on page 22, item

23)and the external power is removed and restored within 20 seconds, the analyzer will remain in standby.

Power Always On

Analyzer state before removing

A lapse in power

A lapse in power

power

< 20 sec.

> 20 sec.

 

 

 

On

On

On

 

 

 

Standby

Standby

On

 

 

 

The PWR NORM setting assigns analyzer on/off control to the front-panel On and Standby keys (see Figure 2-1. on page 22, item 23). If the analyzer is on and the external power is removed and restored within 20 seconds, the analyzer will turn on. On the other hand, if the external power is removed and restored after 20 seconds, the analyzer will remain in standby regardless of the front panel switch settings.

Power Norm

Analyzer state before removing

A lapse in power

A lapse in power

power

< 20 sec.

> 20 sec.

 

 

 

On

On

Standby

 

 

 

Standby

Standby

Standby

 

 

 

36

Chapter 2