Agilent Technologies 8360B, User Manual, Page: 77 / 496

Using the Tracking
Feature
P eaking
P eaking is the function that aligns the output lter (YTM) so that
its passband is cen tered on the RF output, in CW or man ual-sweep
mo de. Use p eaking to obtain the maximum a v ailable p o w er and
sp ectral purity , and b est pulse en v elop es, at an y given frequency
ab o v e 2.0 GHz. The YTM is inactiv e for the low band frequencies
(10 MHz to 2.0 GHz).
T o p eak at the presen t CW frequency:
Press 4
USER CAL
5.
Select
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Tracking Menu
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Peak RF Once .
This causes an instantaneous execution of the p eaking function. This
is a one-time implemen tation of the p eaking, where the function is
turned on and then turned o.
T o p eak at the presen t CW frequency , and con tinue to p eak at new
frequencies as they are en tered:
Press 4 USER CAL 5.
Select
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Tracking Menu
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Peak RF Always .
If \p eak alwa ys" is on (denoted b y an asterisk next to the k ey
lab el) for an extended p erio d of time, the p eaking function will
automatically rep eak ev ery sev en min utes.
Tracking
Auto track is a more extensiv e v ersion of p eaking. It causes all of
the YTM tracking calibration constan ts to b e aligned and requires
appro ximately 40 to 90 seconds to complete. T rac king is p erformed
from 2.0 GHz to the end of the sp ecied frequency range.
Note
If the sw ept signal generator do es not ha v e a step attenuator,
terminate the RF OUTPUT with a go o d 50 imp edance match suc h
as a 10 dB attenuator or a p o w er sensor to prev en t mistrac king.
T o enhance the p o w er output and sp ectral purity of sw ept
mo des, and to improv e tracking p erformance (esp ecially in harsh
en vironmen ts ha ving wide temp erature v ariations):
Press 4 USER CAL 5.
Select
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Tracking Menu
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Auto Track .
Getting Started Adv anced 1-49