Rf Frequency; Characteristics - HP 8642A Operation And Calibration Manual

Model 8642A/B
Description
Operation
RF FREQUENCY
The Signal Genera tor's fundamental synthesized frequency range of 528.750001 to
1057.500000 MHz is translated over the RF output frequency range listed below. The
output frequency range is obtained through frequency division anu heterodyne
conversion (and frequency multiplication for the 8642B.)
Table 3-10. RF Frequency Operating Characteristics
Electrical
Performance Limits
Conditions
Characteristics
Frequency
Range 0.100000 to 1057.500000 MHz 8642A
0.100000 to 2115.000000 MHz 86428
Underrange
0.000001 to 0.099999 MHz'
Resolution 1 Hz (0.1 Hz with Special
Function 240 or 241)
Frequency 85 ms To within 100 Hz
Switching Time
of final frequency
'Below 10kHz, the output level drops rapidly.
The divide bands divide from the fundamental band (divide band 9) as shown in Table
3-11 below. Although the heterodyne band (Het Band) covers a frequency range that is
included in divide bands 1 through 6 (0 100000 to 132.187500 MHz), the heterodyne
conversion technique allows improved modulation characteristics and wider sweep spans
for Phase Continuous Frequency Sweep.
Table 3-11. RF Frequency Band Ranges
Carrier Frequency (MHz)
Band Divide Number
10
1057.500001 to 2115.000000 (86428 only) 0.5
528.750001 to 1057.500000 9 1
264.375001 to 528.750000 8 2
132.187501 to 264.375000 7 4
66.093751 to 132.187500 6 8
33.046876 to
66.093750
5 16
16.523438 to 33.046875 4 32
8.261719 to 16.523437 3 64
4.130860 to 8.261718 2 16
0.100000 to 4.130859
1
256
0.100000 to 132.187500 HET 1
3-39