HP 8665A High-Performance Signal Generator, 100 kHz to 4200 MHz

The HP 8665A signal generator is suited for basic receiver testing up to 4.2 GHz. With Option 004 (low-noise enhancement), it can be used for out-of-channel receiver testing or as a clock source where having the lowest phase jitter is important. Radar testing can be done by adding Option 008 (pulse modulation) . Pulse width and delay can be internally adjusted between 50 ns and 999 ns, eliminating the need for an external pulse generator. Standard FM rates of up to 2 MHz and deviations to 20 MHz are suitable for many applications such as high-speed digital communications. The internal modulation source generates sine, square, triangle or sawtooth waveforms. For applications demanding the lowest RF leakage, Option 010 provides increased RF shielding.

[ Features ]

< -140 dBc/Hz typical SSB phase noise at 20 kHz offset at 1 GHz with Option 004
< -100 dBc nonharmonic spurious to 2 GHz reduces error when testing spurious immunity of receivers
AM, FM, and optional pulse modulation
0.01 Hz frequency resolution
On-site repair and calibration

[ Specifications ]

Frequency Specifications
Range:                        0.1 to 4200 MHz
                             
Resolution:                   0.01 Hz

Accuracy:                     Timebase stability x f_c

Switching Speed:              <50 ms, typical
                              <100 ms (Opt 004)

Sweep
Digital Sweep:                Digitally stepped sweep over entire 
                              frequency range. Linear/log selection.  
                              0.5 to 1000 s sweeps.

Markers/Z-Axis Output:        3 markers available/Z-axis output nominally 
                              +5 V/X-axis output nominally 0 to 10 V

Phase Continuous Sweep:       40 MHz of span available at maximum 
                              carrier frequency. 20 ms to 10 s sweep times			

Spectral Purity Specifications
SSB Phase Noise @ 1 GHz (20 kHz offset):
                              -117 dBc/Hz; -134 dBc/Hz (Opt 004)

Nonharmonics (>10 kHz offset):	
                              -100 dBc, 187.5 to 2060 MHz
                              <-90 dBc, 2060 to 4200 MHz

Harmonics:                    <-30 dBc, output <=+10 dBm

Subharmonics:                 <-75 dBc, 0.1 to 1500 MHz
                              <-40 dBc, 1500 to 3000 MHz
                              <-50 dBc, 3000 to 4200 MHz

Residual FM @ 1 GHz: 0.3 to 3 kHz post det. BW:
                              <7.5 Hz rms; <1.2 Hz rms (Opt 004)
				

Output Specifications
Range:                        +13 to -139.9 dBm
                              +9 dBm (Opt 008)

Resolution:                   0.1 dB

Absolute Accuracy:            ą1 dB, >=-119.9 dBm, 1 to 1000 MHz
                              ±1.5 dB, output >=-119.9 dBm, 1000 to 3000 MHz
                              ±2 dB, output >=-119.9 dBm, 4200 MHz <1MHz

Reverse Power Protection:	
                              25 W, 0.1 to 2060 MHz; 1 W, > 4200 MHz


Modulation Specifications
Amplitude Modulation
Depth (@: <=+7 dBm):          0 to 100%

Resolution:                   0.1%

Bandwidth (3 dB) <=+7 dBm:    dc to >10 kHz, > 10 MHz

Accuracy (1 kHz rate):        ±(6% of setting + 1%) up to 90% depth

Distortion (30% depth, 1 kHz rate):	
                              <4%

Frequency Modulation
Maximum Peak Deviation:	      20 MHz, 3000 to 4200 MHz 
(Deviation halves per lower octave):	
                              10 MHz, 1500 to 3000 MHz

Resolution:                   2.5% of setting

Bandwidth (3 dB):             dc to 800 kHz

Carrier Accuracy in FM:       ±0.6% of setting

Indicator Accuracy:           ±9%, <20 kHz rates

Distortion:                   <1%, 20 Hz to 20 kHz rates

Pulse Modulation Option 008
On/Off Ratio:                 >80 dB

Rise/Fall Time, 10 to 90%:    <8 ns

Repetition Rate:              dc to 10 MHz 

Internal Width/Delay:         Variable, 50 ns to 1s

Internal Modulation Source
Waveforms and Rates:          Sine; white Gaussian noise 
                              (0.1 Hz to 400 kHz); Triangle, 
                              sawtooth, square (0.1 Hz to 50 kHz)		


Frequency Accuracy:           Same as timebase

Output Level (into 66 ohms):  1 V pk

Output Resolutions:           2 mV pk					


Remote Programming Specifications
Interface:                    HP-IB (IEEE 488.2-1987)

Control Language:             HP-SL; all functions 
                              controlled except power

IEEE-488 Functions:           SH1, AH1, T6, TE0, L4, LE0, SR1, 
                              RL1, PP0, DC1, DT0, C0, E2


General Specifications
Power Requirements:           ±10% of 100 V, 120 V, 220 V, or 240 V; 
                              48 to 440 Hz; 500 VA

Operational Temperature:      0 °C to 55 °C

Leakage:                      Conducted and radiated interference 
                              meets MIL-STD-461B REQ2 and FTZ 1046

Calibration Interval:         Recommended 3 years (MTBC)

Weight:	                      35 kg

Size:	                      177 mm H x 426 mm W x 624 mm D
                              (7 in x 16.8 in x 24.6 in) 
                              Option 010 adds 35 mm (1.4 in) to D

Declarations of Conformity

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European Regulatory Declarations of Conformity.

[ Ordering ]

HP 8665A High-Performance Signal Generator, 100 kHz to 4200 MHz Opt 001 High-Stability Timebase Opt 003 Rear-Panel Input/Output Opt 004 Low-Noise Option Opt 008 Pulse Modulation Opt 010 Reduced-Leakage Configuration Opt 907 Front-Handle Kit Opt 908 Rack Flange Kit Opt W30 Add 3 Years to Return Warranty Service Kit HP 08665-61116

[ Key Literature ]