HP 8559A TUNING, INPUTATTEN, REFLEVELdBm, FREQSPAN/DIV, SWEEPTRIGGER, RESOLUTION BW, SWEEPTIME/DIV, Amplitudescale, FREQUENCYBANDGHz

	ADJUSTMENTS
5-21.	BANDWIDTH FILTER ADJUSTMENTS(SERIAL PREFIX 1909A)(Cont'd)	,
PROCEDURE:
	NOTE
	Allow 30 minutes warmup time beforeperforming adjustments.
1.	Set spectrum analyzer controls as follows:
	FREQUENCYBANDGHz ..................................................	.01-3
	TUNING. ................................................................	35 MHz
	FREQSPAN/DIV ..........................................................	10kHz
	RESOLUTION BW .........................................................	1 kHz
	INPUTATTEN .............................................................	30dB
	REFLEVELdBm ...............................................................	0
	Amplitudescale ..............................................................	LIN
	SWEEPTIME/DIV ........................................................	AUTO
	SWEEPTRIGGER .....................................................	FREERUN

Crystal Alignment

Connect equipment asshown in Figure 5-5.

NOTE

If Sweep GeneratorlBandwidth Control Assembly A9 has been replaced or adjusted, perform steps 3 through 9. If not, proceed to step 10.

Set FREQ SPAN/DIV to 500 kHz and RESOLUTION BW to 1 MHz.

Center the signal with TUNING control. Using REF LEVEL FINE control, place signal at 7.1 divisions (0.9 division from top graticule line).

Adjust A9R85 LC until signal is two divisions wide at the fifth graticule line (1 MHz wide at 3-dB points).

Set FREQ SPAN/DIV to 10 kHz and RESOLUTION BW to 10 kHz.

Using REF LEVEL FINE control, place signal at 7.1 divisions.

Adjust A9R72 XTL until signal is one division wide at the fifth graticule line (10 kHz wide at 3 d B points).

Set FREQ SPAN/DIV to 10 kHz and RESOLUTION BW to 1 kHz.

Center signal with TUNING control. (It might be necessary to increase FREQ SPAN/DIV temporarily to find the signal.) Set REF LEVEL FINE control to place signal at sixth gratiwle line.

NOTE

Do not readjust REF LEVEL FINEcontrol until all crystal and LC bandwidth filter adjustments have been performed.