GENERAL INFORMATION

FREQUENCY MODULATION

Deviation range

Resolution

Accuracy

Bandwidth (1 dB)

Group delay:

Carrier frequency offset

Distortion

Modulation source

FSK

Modes

Data source

Frequency shift:

Accuracy

Timing jitter

Filter

PHASE MODULATION

Deviation

Resolution

Accuracy at 1 kHz

Bandwidth (3 dB)

Distortion

Modulation source

AMPLITUDE MODULATION (for carrier frequencies <500 MHz, usable to 2 GHz)

Range Resolution Accuracy

Bandwidth (1 dB)

Distortion

Modulation source

PULSE MODULATION

Carrier frequency range

RF level range

RF level accuracy

Control

ON/OFF ratio

Rise and fall time

0 to 100 kHz.

3 digits or 1 Hz.

±5% at 1 kHz modulation rate.

DC to 100 kHz (DC coupled),

10 Hz to 100 kHz (AC coupled),

20 Hz to 100 kHz (AC coupled with ALC). Less than 5 s to 100 kHz.

Less than 1% of the set frequency deviation when DC coupled.

Less than 3% at 1 kHz rate for deviations up to 100 kHz. Typically <0.5% at 1 kHz rate for deviations up to 10 kHz.

Internal LF generator or external via front-panel BNC.

2 level or 4 level FSK.

Note that 4 FSK is not available with Option 11 Fast Pulse fitted.

External data connected to TRIGGER INPUT connector (2 level) or TRIGGER INPUT and PULSE INPUT connectors (4 level).

Settable up to ±100 kHz. As FM deviation accuracy.

±3.2 s

8th order Bessel, 3 dB at 20 kHz.

0 to 10 radians.

3 digits or 0.01 radians.

±5% of indicated deviation excluding residual phase modulation.

100 Hz to 10 kHz.

Less than 3% at 10 radians at 1 kHz modulation rate. Typically <0.5% for deviations up to 1 radian at 1 kHz.

Internal LF generator or external via front-panel BNC.

0 to 99.9%. 0.1%.

±5% of set depth at 1 kHz rate at +17°C to 27°C ambient temperature. Temperature coefficient <0.02% per °C.

DC to 30 kHz (DC coupled),

10 Hz to 30 kHz (AC coupled),

20 Hz to 30 kHz (AC coupled with ALC).

Less than 2.5% at 1 kHz rate for modulation depths up to 80%, Less than 1.5% at 1 kHz rate for modulation depths up to 30%.

Internal LF generator or external via front-panel BNC.

32 MHz to 2.4 GHz, usable to 10 MHz.

Maximum guaranteed output is reduced to +20 dBm, +14 dBm above 1.2 GHz. When pulse modulation is enabled, adds ±0.5 dB to the RF level accuracy.

TTL/CMOS compatible pulse input is on front-panel BNC connector with 10 kinput impedance.

A logical ‘1’ (3.5 V to 5 V) turns the carrier on, a logical ‘0’ (0 V to 1 V) turns the carrier off. Maximum safe input is ±15 V.

Better than 45 dB below 1.2 GHz. Better than 40 dB above 1.2 GHz.

Less than 10 s.

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VXI 3002 manual Frequency Modulation, Fsk, Phase Modulation, Pulse Modulation