HP 8559A TRIGGER, TIME/DIV, REFLEVELdBm, INPUT ATTEN, FREQSPAN/DIV, RESOLUTIONBW, CAL OUTPUT Adjustment, 5-29.CAL OUTPUT AND REF LEVEL CAL ADJUSTMENTS (Cont'd)

MODEL 8559A ADJUSTMENTS

ADJUSTMENTS

5-29. CAL OUTPUT AND REF LEVEL CAL ADJUSTMENTS (Cont'd)

PROCEDURE:

CAL OUTPUT Adjustment

1.Allow one-half hour warmup time of equipment with spectrum analyzer connected to mainframe with extender cable.

2.Connect power meter/power sensor to front-panel CAL OUTPUT connector as shown in Figure 5-20.

3.Place spectrum analyzer on its right side. Adjust A10R13 CAL AMPL for power meter indication of

-10.0 dBm k0.1 dB. A10R13is accessed through motherboard.

4.Disconnect power meter/power sensor and connect frequency counter to CAL OUTPUT connector.

5 . Adjust A10C46 CAL FREQ for frequency counter indication of 35.00 MHz +0.01 MHz. A10C46 is accessed through motherboard.

6.Repeat steps 2 through 5 until CAL OUTPUT signal is properly adjusted for both amplitude and fre- quency.

7.Connect CAL OUTPUT to analyzer INPUT.

8.If not already removed, remove CAUTION label (PC Board) from A12 Step Gain.

9.Set spectrum analyzer controls as follows:

Amplitudescale ........................................................	10dB/DIV
REFLEVELdBm ...............................................................	0
INPUT ATTEN .............................................................	10 dB
FREQSPAN/DIV ..........................................................	l M H z
RESOLUTIONBW .........................................................	l M H z
TIME/DIV ................................................................	AUTO
TRIGGER ............................................................	FREERUN
FREQUENCYBANDGHz ..................................................	.01-3

10.Center 35 MHz calibration signal on CRT using TUNING controls.

11.Adjust front-panel REF LEVEL CAL fully counterclockwise.

12.Change Amplitude Scale to 1 dB/DIV and adjust REF LEVEL FINE if necessary to place signal peak on first horizontal graticule line above bottom reference line of CRT

13.Adjust front-panel REF LEVEL CAL to raise signal peak three divisions (3 dB) on CRT (to fourth graticule line above bottom referenceline on CRT).

14.Change Amplitude Scale to 10 dB/DIV, REF LEVEL dBm to - 10, and set REF LEVEL FINE to 0 dBm.