8644B Frequency Limits; 8644B Mode Keys - Agilent Technologies e1420b User Manual

8644B Frequency Limits

Table 58 8644B frequency limits
Note: Special Function 120 must be enabled for DCFM
Model Option Band Minimum
Number (MHz)
8644B 002 1030
8644B 002 515
8644B Standard 515
8644B Both 257.5
8644B Both 128.75
8644B Both 64.375
8644B Both 32.1875
8644B Both 16.09375
8644B Both 8.046875
8644B Both 4.0234375
8644B Both 2.01171875
8644B Both 1.005859375
8644B Both 0.5029296875
8644B Both 0.25146484375
Takes into account limited tuning resolution available in linear FM (Special Function 120, refer to
1
functions"
on page 373.

8644B mode keys

• The [Mode 1] key provides the maximum FM deviation and minimum RF
• The [Mode 2] key provides a median range of FM deviation and RF output
• The [Mode 3] key provides the lowest noise level at the RF output, FM
Agilent E5505A User's Guide
Band Maximum
(MHz)
2060
1029.99999999
1030
514.99999999
257.49999999
128.74999999
64.37499999
32.18749999
16.09374999
8.04687499
4.02343749
2.01171874
1.005859365
0.5029296775
output switching time. Noise level is highest in this mode, as shown in the
following table.
switching time, as shown in
deviation bandwidth is narrower, and the RF switching time is slower than
in either Modes 1 or 2.
Minimum Recommended PTR (Peak Tune Range)
1
PTR =FM Deviation x VTR
Mode 3 Mode 2
200000 2000000
100000 1000000
100000 1000000
50000 500000
25000 250000
12500 125000
6250 62500
3120 31200
1560 15600
781 7810
390 3900
195 1950
97.6 976
48.8 488
Table 59 on page 376.
Reference Graphs and Tables
Mode 1
20000000
10000000
10000000
5000000
2500000
1250000
625000
312000
156000
78100
39000
19500
9760
4880
"How to access special
16
375