Agilent Technologies 8360B, User Manual, Page: 47 / 496

P o w er Sw eep and
P o w er Slope
Operation
P o w er Sw eep Operation
The p o w er sw eep function allo ws the p o w er output to b e sw ept
(p ositiv e or negative) when the sw ept signal generator is in the
CW frequency mo de. The p o w er output of the sw ept signal
generator determines the maximum lev eled p o w er sw eep that can b e
accomplished. F or this example, refer to the \Men u Map" section.
Zero and calibrate the p o w er meter.
Connect the instrumen ts as sho wn in Figure 1-10 .
Press 4 CW 5 4 4 5 4 GHz 5.
Press 4 POWER LEVEL 5 4 0 5 4 dBm 5.
Press 4 SWEEP TIME 5 4 2 5 4 sec 5 4 SINGLE 5.
Set the p o w er meter to dB[REF] mo de.
The sw ept signal generator is ready to pro duce a 4 GHz CW signal
at 0 dBm p o w er out, with a 2 second sw eep rate whenev er a single
sw eep is executed. The p o w er meter is ready to measure the p o w er
lev el relativ e to a starting p oint of 0 dBm.
Press PO WER 4 MENU 5.
Select
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Power Sweep and en ter 4
7 5 4 dB(m) 5 (asterisk on).
Press 4
SINGLE
5.
W atch the relativ e p o w er indication on the p o w er meter. A t the end
of the sw eep the p o w er meter indicates +7 dB. The active en try area
on the sw ept signal generator indicates:
--> POWER SWEEP: 7.00 dB/SWP
No w en ter 4 2 5 4 5 5 4 dB(m) 5 (p o w er sw eep is still the active en try
function).
Press 4 SINGLE 5.
This time the p o w er meter indicates less than the p o w er sw eep
requested. Note that the sw ept signal generator is unlev eled, UNLVD .
This happ ens b ecause the sw ept signal generator's output p o w er
at the start of the sw eep is 0 dB and the requested p o w er sw eep
takes the sw ept signal generator b ey ond the range where it is able to
pro duce lev eled p o w er. The range of the p o w er sw eep is dep endent
on the ALC range and can b e oset if a step attenuator (Option 001)
is presen t.
Select
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Power Sweep to turn this function o (no asterisk).
Press 4 POWER LEVEL 5 4 0 5 4 2 5 4 0 5.
On the p o w er meter, press dB[REF] to reset the reference lev el.
1-18 Getting Started Basic