Table 12-4. Sweep + Tune Multiplier Values

Nt

C e n t e r

A14J15 Pin 3 U416A

U416B

U416C

Gain*

 

Frequency

P dc)

 

 

 

 

1

5 GHz

-1.33

Open

Closed

Closed

x -0.208

2

10 GHz

-2.58

Open

Closed

Open

x - 0 . 4 1 7

*Measured from A14J15 pin 1 to A14J15 pin 3. t N is the harmonic mixing mode.

10.Move the WR PROT/WR ENA jumper on the A2 Controller assembly to the WR ENA position.

11.Set the HP 85623 to the following settings:

Center frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5 GHz Span . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OHz

1‘2. On the HP 85623, press [CAL], NORE f OF 2, SERVICE CAL DATA, PIBISFL ADJ , and

PBBZL OFFSET .

13.Connect a DVM to A14J16 pin 13.

14.Set the DAC to values from 0 to 255 to yield DVM readings from 0 V to -10 V respectively.

15.Move the jumper on A14J14 from the NORM to the OPT position.

16.Connect the DVM to A14J16 pin 1.

17.Press PEESEL SLOPE.

18.Set the DAC to values from 0 to 255 to yield DVM readings from 0 V to +lO V respectively.

19.Move the jumper on A14J14 from the OPT to the NORM position.

20.On the HP 85623, press (CAL) and IUULIGN LO & IF.

21.Connect the DVM to A14J16 pin 3.

22.Change the center frequency in 1 GHz steps and confirm that the voltage changes by 266 mV/GHz.

23.Move the WR PROT/WR ENA jumper on the A2 Controller assembly to the WR PROT position.

RF Section 12-15

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Agilent Technologies 856290216 service manual Sweep + Tune Multiplier Values, Pbbzl Offset