MODEL8559A

PERFORMANCE TESTS

PERFORMANCE TESTS

4.12. TUNING ACCURACY

SPECIFICATION:

0.1- 3.0 GHz: -t(1 MHz +0.3% of center frequency)

3.0- 21.0 GHz: -t(5 MHz +0.2% of center frequency)

DESCRIPTION:

An external RF source is used to provide a frequency-calibrated input signal to the spectrum analyzer for three points on each frequency band. The digital FREQUENCY GHz readout is compared with the known test frequency to find the amount of readout (or tuning) error. The 10 dB attenuator is necessary to reduce LO emission from the spectrum analyzer to the frequency counter when using the sweep oscillator.

 

SPECTRUM

 

 

 

 

 

 

 

 

 

 

 

 

ANALYZER

 

 

 

SWEEP

 

RF

 

 

FREQUENCY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OSCILLATOR

PLUG- IN

 

 

C O U V F R

 

 

 

 

 

 

 

 

 

 

 

INPUT 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CABLE

ASSY

 

 

 

 

 

 

 

 

 

 

 

COMB

 

 

 

 

 

 

( R e - 2 1 4 f U )

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GENERATOR

!

 

 

 

- -POWER. .---

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

!--------- -

 

S P L I T T E R1

 

 

ADAPTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

f7

 

 

 

 

 

 

 

 

 

 

CABLE ASSY

~~~~~T~~ ( R e - 9 1 1 1 1 ' '

I b V N N C b I U l n C b I L l

ITO A N A L Y Z E R )

I

ADAPTERADAPTER

FIGURE4-4.TUNINGACCURACY TEST SETUP

NOTE

The HP 8350A Sweep Oscillator may be substituted for the HP 8620C in this procedure.

EQUIPMENT

 

CombGenerator ........................................................

HP8406A

Sweep Oscillator .........................................................

HP 8620C

RF Plug-In ...................................................

HP 86290B, Opt. H 0 8

Frequency Counter ..............................................

HP 5342A, Opt. 005

Power Splitter ......................................................

H P 11667A-C16

10-dB Attenuator ................................................

HP 8491B, Opt. 010

Cable Assembly, RG-214/U, with Type N Connectors (2 required) ...............

HP 11500A

Adapter, Type N (f) to N (f) .............................................

HP 1250-1472

Adapter, Type N (m) to BNC (f) (2 required) ...............................

HP 1250-0780