HP 346C

The ideal companion to HP's noise figure solutions is the HP 346C noise source. Since it is broadband (10 MHz to 26.5 GHz), it eliminates the necessity for several sources at different frequency bands. The low SWR of the noise source reduces a major source of measurement uncertainty; reflections of test signals. Option K01 is a coaxial noise source and features coverage from 1 to 50 GHz with a 2.4 mm coaxial connector.

• Low SWR for reducing noise figure (NF) measurement uncertainty
• Individually calibrated ENR values at specific frequencies to enhance accuracy
• Calibration printed on its label for easy loading into the HP 8970B

Specifications:

Frequency Range:

10 MHz to 26.5 GHz

Excess Noise Ratio (ENR) Limits

10 MHz to 12 GHz: 12 to 16 dB

12 to 26.5 GHz: 14 to 17 dB

Maximum SWR (reflection coefficient) On and Off

10 MHz to 18 GHz: 1.25 (0.11)
18 to 26.5 GHz: 1.35 (0.15)

Power Required:

28 ±1 Vdc

Size:

21 mm W x 140 mm H x 30 mm D (0.8 in x 5.5 in x 1.2 in)

Standard Connector:

APC to 3.5 (male)

HP 346C Option K01 Broadband Noise Source Specifications

This coaxial noise source features coverage from 1 to 50 GHz with the 2.4 mm coaxial connector. ENR is nominally 20 dB at 1 GHz and 7 dB at 50 GHz.