Agilent / HP / Keysight 8657B
8657B Synthesized Signal Generator, 100 kHz to 2060 MHz
The Agilent / HP 8657B 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 8657B signal generator is ideal for R&D, manufacturing, and support.
The 8657B 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 8657B allows sensitivity measurements to be made on even the most sensitive receivers.
The 8657B 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 8657B 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.
p>High-performance pulse modulation available on the 8657B gives confidence in radar or pulsed carrier measurements. This includes rise/fall times of <35 ns, rates from dc to 30 MHz, and better than 70 dB on/off ratios (fc<1030 MHz).
State-of-the-art dcFM and wide FM bandwidth make the 8657B ideal source for many VCO simulation applications.
The 8657B 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 8657B offer 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.
100 kHz to 990 MHz
AM & FM
25 watts RPP
Lowest cost of family
Wide frequency coverage, 100KHz to 1040MHz
p><35ms frequency switching speed
AM and FM capabilities
±1dB level accuracy (typically ±0.5dB)
Amplitude offset and phase adjust capabilities
0.3 GMSK modulation option
Frequency Range: 100 KHz - 2.6 GHz
Frequency Resolution: 1 Hz
Output Accuracy: +/- 1.5 dB - +/- 1.0 dB
Output Range: -143.5 dBm - +13 dBm
Output Resolution: 0.1 dB
SSB Phase Noise Range: -136 dBc - -118 dBc
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 20.5 kg (45 lb); shipping 26.0 kg (57 lb)
Dimensions: 133 mm H x 425 mm W x 574 mm D (5.25 in H x 16.75 in W x 22.6 in D)