Promising the best combination of performance, ease of use, and serviceability of comparably priced instruments, the SMB100A family of analog signal generators offers four models with measurement ranges from 9 kHz to 1.1 GHz, 2.2 GHz, 3.2 GHZ, and 6 GHz. The instruments deliver an output of +18 dBm specified and +25 dBm in over-range mode with a flatness of ±0.5 dB below 3 GHz and ±0.9 dB above 3 GHz. Settling time is less than 3 ms for frequency, less than 2.5 ms for level, and less than 1 ms in list mode. At 1 GHz with a 1 Hz measurement bandwidth, phase noise is typically -128 dBc/Hz at a 20-kHz carrier offset. Rather than using mixers to cover the lowest frequencies in their output range, the instruments employ a direct digital synthesizer from 9 kHz to 23.3475 MHz. This is said to dramatically improve phase noise performance at low frequencies. Other features include a non-harmonic suppression of -70 dBc at 1 GHz at a 10-kHz offset and a typical wideband noise of -152 dBc at 1 GHz. Prices start at $6,350. ROHDE & SCHWARZ INC., Columbia, MD. (410) 910-7800.
Company: ROHDE & SCHWARZ INC.
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