Agilent / HP / Keysight 8657A
8657A Synthesized Signal Generator, 100 kHz to 1040 MHz
The Agilent / HP 8657A signal generator is designed to test AM, FM, and pulsed receivers as well as components. The 8657A and B enhance system up-time by using a very reliable attenuator technology.
With exceptional analog modulation, good spectral purity, and superb output level performance, the Agilent 8657A signal generator is ideal for R&D, manufacturing, and support.
The 8657A signal generator provides the spectral purity and modulation versatility needed for RF testing of communication and navigation equipment.
With a dynamic range from +13 to -143.5 dBm, the 8657A allows sensitivity measurements to be made on even the most sensitive receivers.
The 8657A couple this with a level accuracy of ±1 dB (typically 0.5 dB) to –127 dBm across the full temperature range of 0 to 55 degrees C, to give accurate and repeatable measurements every time.
For radios with digital squelching, the 8657A has extremely stable dc-coupled FM (dcFM). The dc coupling of low-rate tones or digital data eliminates droop, and the exceptional stability and center-frequency accuracy when in dcFM mode eliminates the need to retune the signal generator after dcFM is selected.
State-of-the-art dcFM and wide FM bandwidth make the 8657A ideal source for many VCO simulation applications.
The 8657A gives you the ability to adjust the phase of the output signal in one-degree increments with respect to a source that is locked to the same reference timebase. This feature makes it easy to characterize phase-detector or phase-interferometer receivers during design or manufacturing.
The 8657A offers as a standard feature the ability to store 100 complete instrument states. This feature decreases set-up time when performing repetitive tests and reduces operator errors.
The Agilent 8657A signal generatoris especially dependable with its electronic attenuator design. Instead of using mechanical relays for switching the attenuators, the 8657A uses solid-state components for setting output levels.
Wide frequency coverage, 100KHz to 1040MHz
AM & FM
Low SSB phase noise
Electronic attenuator for ATE
< 35ms frequency switching speed
AM and FM capabilities
±1dB level accuracy (typically ±0.5dB)
Amplitude offset and phase adjustment capabilities
0.3 GMSK Modulation Option
50 watts RPP
In-channel and out-of-channel performance
Frequency Range: 100KHz - 1.04GHz
Frequency Resolution: 10Hz
Output Accuracy: +/- 1.0dB - +/- 1.5dB
Output Range: -143.5dBm - +13dBm
Output Resolution: 0.1dB
SSB Phase Noise Range: -136dBc - -124dBc
Output impedance: 50 ohms nominal
Interface: GPIB (IEEE-488)
Operating temperature: 0 to 55 deg C
Storage temperature: -40 to +71 deg C
Weight: net 18.2 kg (40 lb); shipping 23.6 kg (52 lb)