time and ensuring low VSWR, even with heavy usage. + + Internally regulated for 0 dB / 90 Vdc stability NS 346 CALIBRATED NOISE SOURCE SERIES Calibration data consists of Excess Noise Ratio (ENR) at cardinal frequency points across the spectrum of the device according to Table 1 TABLE 1 Frequency (GHz) 0.01 0.10 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 11.00 12.00 13.00 14.00 15.00 16.00 17.00 18.00 19.00 20.00 21.00 22.00 23.00 24.00 25.00 26.00 26.50 NS346A, B, D are only calibrated to 18 GHz How to Order NS346X-X Model (see chart) Connector Type 1: Type N (m) connector 2: APC 3.5 mm connector