- <-108dBm, 100kHz < fc <1 MHz
- <-148dBm, 1 MHz < fc < 10 MHz
- <-148dBm+3f (GHz) dB, fc >10 MHz
- 0 dB RF attenuator; 10 Hz RBW; sample detector; reference level -70 dBm
Option PA3 provides preamplification to further reduce the DANL, which improves receiver sensitivity for detecting low-level signals. With this option added, the N9320B DANL will be further reduced to -148 dBm.