Atec Agilent-E8251A - Manual (Page 7)

7
Frequency modulation
Maximum deviation N x 8 MHz
Resolution 0.1% of deviation or 1 Hz, whichever is greater
Deviation accuracy < ± 3.5% of FM deviation + 20 Hz
(1 kHz rate, deviations < N x 800 kHz)
Modulation frequency response
Path Rates (at 100 kHz deviation)
1 dB Bandwidth
3 dB Bandwidth, typical
FM 1 dc/20 Hz to 100 kHz dc/5 Hz to 10 MHz
FM 2 dc/20 Hz to 100 kHz dc/5 Hz to 1 MHz
dc FM 12 carrier offset ±0.1% of set deviation + (N x 8 Hz)
Distortion < 1% (1 kHz rate, deviations < N x 800 kHz)
Sensitivity ±1 Vpeak for indicated deviation
Paths FM1 and FM2 are summed internally for composite
modulation. Either path may be switched to any
one of the modulation sources: Ext1, Ext2,
internal1, internal2. The FM2 path is limited to a
maximum rate of 1 MHz. The FM2 path must be set
to a deviation less than FM1.
Phase modulation
Maximum deviation N x 80 radians
(N x 8 radians in high-bandwidth mode)
Resolution 0.1% of set deviation
Deviation accuracy < ±5% of deviation + 0.01 radians
(1 kHz rate, normal BW mode)
Modulation frequency response
Mode Maximum Deviation Rates (3 dB BW)
Normal BW N x 80 rad dc – 100 kHz
High BW N x 8 rad dc – 1 MHz (typ)
Distortion < 1 % (1 kHz rate, THD, dev < N x 80 rad,
normal BW mode)
Sensitivity ±1 Vpeak for indicated deviation
Path FM1 and FM2 are summed internally for
composite modulation. Either path may be switched
to any one of the modulation sources: Ext1, Ext2,
internal1, internal2. The FM2 path must be
set to a deviation less than FM1.
12 At the calibrated deviation and carrier frequency,
within 5°C of ambient temperature at time of user
calibration.
A Series only