Note: The P937xA does not support this function.
When you use the M9485A, you can control the M9379A amplifiers through the VNA firmware if the M9379As are included at launcher.
The Atten, Path, and Switch can be set independently for each channel when the connection for sync signal is made. Refer to Handler I/O Connector (M9485A). The independent settings (Atten/Path/Switch) for sweep segment are not possible.
WARNING: When connecting or disconnecting a cable to the module, do not touch the open end of the cable. Doing so may damage the module by electrostatic discharge (ESD).
Note: Place M9379A at just right after M9376A/7A/8AB, M9341A/B or M9161D modules or between them. Empty slot or the M9485A unsupported modules (other than M9376A/7A/8AB, M9341A/B, M9161D) is not allowed to locate between M9340A and M9379A.
Turn on M9379A amps for all channels: Master switch for all amplifiers and switch of all M9379A modules. LED on the front panel is changed as follows.
Note: 45-minute warm up time after this switch ON is required to meet the specification accuracy. Enable Switch/Path/Atten control for Channel n: The settings are applied for the selected channel. The setting of Switch/Path/Atten is independent for each channel. Name: Module number. Chassis: Chassis number where the module is located. Slot: Slot number where the module is located. Atten: Attenuator setting for the amplifier 1. This can be set from 0 to 28 dB with 2 dB step. Path: Path for amplifier 1. Select Thru or Amp. When Noise Figure Cold Source is selected as Meas Class, NF Receiver can be selected.
Switch: Path for switch. Select A or B. When Noise Figure Cold Source is selected as Meas Class, NF Source, NF LO or NF Receiver can be selected.
Note: Control the gain of M9379A properly in order to avoid saturation and overload from receivers due to amplified source signal noise by the M9379A. When the M9379A Amp1 is used with the M9377A DRA modules (receiver attenuator = 0 dB), It is recommended that the M9379A Amp1 attenuator sets at 10 dB or above. When the M9379A Amp2 is used, inserting 10 dB attenuator between Amp2 and the M9377A is recommended. |
Changing the M9379A settings does not affect the error correction level notation on the status bar. The correction level is not changed even if the M9379A settings are changed. However, the M9379A setting may affect the correction. In that case, re-calibration is recommended.
The state file can be recalled even if the number of M9379A module on save is different. When more M9379A modules are installed at recall, the additional modules are set at default. The slot number and M9379A serial number are not saved into the state file. Hence, the state is recalled even if you install it into any other slot or the other M9379A module. The M9379A configuration change does not affect the error correction level notation. Re-calibration may be required if your M9379A configuration is different from the time of save.
