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Band Frequency range N number
1 250 kHz to ≤ 250 MHz 1
2 > 250 MHz to ≤ 500 MHz 0.5
3 > 500 MHz to ≤ 1GHz 1
4 > 1 to ≤ 2 GHz 2
5 > 2 to ≤ 4 GHz 4
6 > 4 to ≤ 6 GHz 8
Maximum deviation
3
Standard With Option UNJ
N x 8 MHz N x 1 MHz
Resolution 0.1% of deviation or 1 Hz,
whichever is greater
Modulation frequency rate
4
[deviation = 100 kHz]
Coupling 1 dB bandwidth 3 dB bandwidth
FM path 1[DC] DC to 100 kHz (DC to 10 MHz)
FM path 2 [DC] DC to 100 kHz (DC to 0.9 MHz)
FM path 1 [AC] 20 Hz to 100 kHz (5 Hz to 10 MHz)
FM path 2 [AC] 20 Hz to 100 kHz (5 Hz to 0.9 MHz)
Deviation accuracy
3
[1 kHz rate, deviation < N x 100 kHz]
< ± 3.5% of FM deviation + 20 Hz
Carrier frequency accuracy relative to CW in DCFM
3, 5
±0.1% of set deviation + (N x 1 Hz)
Distortion
3
[1 kHz rate, dev.= N x 100 kHz]
< 1%
FM using external inputs 1 or 2
Sensitivity 1 V
peak
for indicated deviation
Input impedance 50 Ω, nominal
FM path 1 and FM path 2 are summed internally for composite modulation.
The FM 2 path is limited to a maximum rate of 1 MHz. The FM 2 path must be
set to a deviation less than FM 1 path.
Specifications for Analog Modulation
1. All analog performance above 4 GHz is typical.
2. For non-Option UNJ units, specifications apply in phase noise mode 2 [default].
3. Refer to frequency bands on this page to compute specifications.
4. Parentheses denote typical performance.
5. At the calibrated deviation and carrier frequency, within 5 °C of ambient temperature at time of calibration.
Frequency bands
Frequency modulation
1,2