Agilent Technologies 8360 L Series, Service Manual

Page: 314 / 603

157. On the syn thesizer, set:
4
CONT
5 4
SWEEP TIME
5 4
0
5 4
msec
5
158. Press 4 SINGLE 5 sev eral times to initiate sev eral sw eeps. If a drop in p o w er greater than 1
division o ccurs when in single sw eep, increase the A term of the dela y adjustmen t #593
to put the A term at the high end of the p eak.
159. On the syn thesizer, set:
4 ST ART 5 4 7 5 4 GHz 5
4 CONT 5 4 SWEEP TIME 5 4 0 5 4 msec 5
4 POWER LEVEL 5 4 25 5 4 dBm 5
160. Decrease the syn thesizer p o w er lev el un til the lev el of the en tire trace on the oscilloscop e
b egins to drop.
161. Switch b et w een the fastest sw eep time (0 ms) and 500 ms sw eep time and c hec k that
p o w er c hanges less than 2/3 division ( 1 dB) across b oth bands. If the c hange is greater
than 2/3 division, readjust the appropriate dela y term.
162. Adjust calibration constan t #592, YTF Bx Dly T erm A2, to maximize p o w er at the start
of band 2 (start of sw eep).
163. Adjust calibration constan t #602, YTF Bx Dly T erm B2, to maximize p o w er at the end
of band 2.
164. Adjust calibration constan t #211, YTM Rise; Band 3 A2, to minimize p o w er drop out at
the start of band 3.
165. On the syn thesizer, set:
4 ST ART 5 4 10 5 4 GHz 5
4
POWER LEVEL
5 4
25
5 4
dBm
5
166. Decrease the syn thesizer p o w er lev el un til the lev el of the en tire trace on the oscilloscop e
b egins to drop.
167. Adjust calibration constan t #212, YTM Rise; Band 3 B2, to minimize p o w er drop out at
the start of band 3.
168. On the syn thesizer, set:
4 SWEEP TIME 5 4 0 5 4 msec 5
169. Press 4
SINGLE
5 sev eral times to initiate sev eral sw eeps. If a drop in p o w er greater than 1
division o ccurs when in single sw eep, readjust the appropriate dela y term for the lo cation
of the problem.
170. On the syn thesizer, set:
4
ST ART
5 4
2.0
5 4
GHz
5
4 CONT 5 4 SWEEP TIME 5 4 0 5 4 msec 5
4 MARKER 5
NNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Marker M2 4 7 5 4 GHz 5 (asterisk on)
4
POWER LEVEL
5 4
25
5 4
dBm
5
171. Decrease the syn thesizer p o w er lev el un til the lev el of the en tire trace on the oscilloscop e
b egins to drop.
172. Adjust calibration constan t #591, YTF Bx Dly T erm A1, to maximize p o w er at the start
of band 1.
173. Adjust calibration constan t #601, YTF Bx Dly T erm B1, to maximize p o w er at the high
end of band 1.
174. Adjust calibration constan t #206, YTM Rise; Band 2 A1, to minimize p o w er drop out at
the start of band 2.
175. Adjust calibration constan t #209, YTM Rise; Band 3 A1, to minimize p o w er drop out at
the start of band 3.
176. Switch b et w een the fastest sw eep time (0 ms) and 1s sw eep time and c hec k that p o w er
c hanges less than 2/3 division ( 1 dB) across all bands. If the c hange is greater than 2/3
division, readjust the appropriate dela y term.
Agilent 8360 Adjustments
Amplifier/Filter Adjustments
3-57