Model 845 - 20 GHz Microwave Signal Generator / RF Signal Generator
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Model 845 Microwave Signal Generator

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The specifications in the following pages describe the warranted performance of the signal generator for 23 ± 10 °C after a 30 minute warm-up period and for all configurations (options PE2/PE3/HP if not explicitly stated). Typical specifications describe expected, but not warranted. Parameter Frequency range resolution Phase resolution Settling time time from receipt of SCPI command SSB Phase noise at 10 GHz at 1 kHz from carrier at 20 kHz from carrier Wideband noise -100 dBc/Hz -108 dBc/Hz -150 dBc/ Hz 100 fs RMS -130 dBc/Hz -140 dBm Total jitter Amplitude Noise at 10 GHz BW over 10 Hz to...

Sweeping Capability Sweeps can be performed with combined internal or external AM/FM/PM/pulse modulation running. With modulation enabled, the minimum step time increases to 2 ms. Digital frequency sweep Sweep type: linear, logarithmic, random Step time (tstep) 400 Ps Dwell time (tdwell) 10 Ps 50 Ps Off-time (incl. transient time) (toff) Timing accuracy per point Generalized list sweep allows individual setting of frequency, power, dwell-time, and off-time for each point List size 2 65’000 mechanical attenuator not used Step time (tstep) 400 Ps Dwell time (tdwell() 10 Ps 1000 s tstep...

Sweeping Capability Temperature stability (0 to 50 degC) Aging 1st year Aging per day (after 30days operations) Warm-Up time Output of internal reference Reverse Power Protection DC Voltage RF power Excluding connectors Including connectors Multi Purpose Output (FUNC OUT) Output is FUNC OUT at rear panel Parameter MULTIFUNCTION GENERATOR Frequency range Frequency resolution Output voltage amplitude peakpeak Harmonic Distortion Output impedance sine triangle square Sine, triangle Square (CMOS output) < 100 kHz, 1 Vpp Sine, triangle square wave sine, triangle, square wave VIDEO OUTPUT (of...

Trigger (TRIG IN) Input is TRIG IN at rear panel Parameter Trigger Types Continuous, single, gated, gated direction Trigger Source Trigger Modes Continuous free run, trigger and run, reset and run Trigger latency Trigger uncertainty External Trigger delay External Delay Resolution Trigger Modulo Execute only on Nth trigger event Trigger Polarity Rising, falling

Modulation Capabilities Parameter Multifunction Generator Output is FUNC OUT at rear panel Frequency range Frequency resolution Output voltage amplitude peakpeak Harmonic Distortion Output impedance Pulse rise/fall time Pulse trains length (pulses) Pulse width Pulse resolution Polarity External input amplitude Maximum Frequency deviation (peak) Phase Modulation Phase deviation (peak) Modulation rate Modulation waveforms External Input sensitivity Total harmonic distortion Note sine triangle square Sine, triangle Square (CMOS output) < 100 kHz, 1 Vpp Sine, triangle square wave Frequency...

Typical performance curves Phase Noise Phase Noise

Maximum Output Power

Front panel: 1. RF output SIVA female 4. IVfenu and 1t <—> arrow keys Rear panel: 1. Trigger input BNC female 2 Function output BNC female 3. External reference input BNC female 4. I nternal reference output BNC female 5. FM/PM modulation input BNC female 6 AM and Pulse modulation: BNC female 9. GPI B: IEEE-488.2 1987 with listen and talk (optional)

General Characteristics Remote programming interfaces Ethernet 100BaseT LAN interface, USB 2.0 host & device GPIB (IEEE-488.2,1987) with listen and talk (optional) Control language SCPI Version 1999.0 Power requirements 6 VDC; 20 W maximum Mains adapter supplied: 100-240 VAC in/ 6V 2.5A DC out Operating temperature range 0 to 45 °C Storage temperature range –40 to 70 °C Operating and storage altitude up to 15,000 feet notice Safety/EMC complies with applicable Safety and EMC regulations and directives. Weight ≤ 2.5 kg (6 lbs) net, ≤ 4 kg (8 lb.) shipping Dimensions 106 mm H x 172 mm W x 220...