PIM Master™ Passive Intermodulation Analyzer with Site Master™ Cable & Antenna Analyzer (331) and 2-Port Options (703) User Guide : Instrument Care : PIM Master Firmware Update : Updating with a USB Memory Device
 
Updating with a USB Memory Device
The PIM Master contains a feature that allows you to update its firmware by using a USB memory device. First, you must load the USB memory device with the firmware (refer to Downloading the Firmware). Anritsu recommends that you format the USB memory device before loading the firmware. After the firmware is loaded onto a blank USB memory device, follow the instructions below to update the firmware on your PIM Master.
Caution 
Before beginning the firmware update process, connect an external power supply (either the AC/DC power supply or the automotive 12 VDC adapter) to your PIM Master. The power must remain On until the firmware update is complete.
1. With the PIM Master off, insert the USB Memory device into the USB port and turn on your PIM Master. The PIM Master will recognize the new firmware in the USB device.
The USB Memory device can be inserted while the PIM Master is On, but the update firmware is not checked until the instrument is turned Off and then On.
2. A message is displayed to inform you that new firmware is ready for update, and you are asked to choose whether to update now, by pressing the Yes or the No submenu key. Press Yes to begin the update.
3. The Firmware Update menu is displayed, the Firmware Update dialog box (Figure: Firmware Update Menu) shows “Save none” selected, and a cautionary statement is displayed regarding user data. Use the Arrow keys to select an option. The choices are:
a. Save none
No attempt will be made to save any user data.
b. Save user data
User data will be saved in the selected external media device.
WARNING: If there is not enough available memory space for all user data then some data may be lost during the process.
c. Save and restore user data
User data will be saved in the selected external media device. The instrument will also attempt to restore the files to the instrument after the update.
WARNING: If there is not enough available memory space for all user data then some data may be lost during the process.
Firmware Update Menu
4. Read through each choice carefully, select the desired save mode, and then press the Update From USB Memory submenu key or press Enter to begin the firmware update process.
5. The Firmware Update message box is displayed and directs you to press ENTER to continue or to press ESC to abort (Figure: Firmware Update Message Box).
Firmware Update Message Box
6. Press Enter to begin the firmware update process. The Firmware Update dialog box displays the following message:
Updating firmware. Please Wait.
7. When complete, the instrument reboots.