The Anritsu Spectrum Master (MS272xB or MS8911B) is capable of approximately 2.5 hours of continuous operation from a fully charged, field‑replaceable battery (refer to Section “Battery Replacement” on page 1‑9 of Chapter 1). The Spectrum Master can also be operated from a 12 VDC source (which will also simultaneously charge the battery). This can be achieved with either the Anritsu AC–DC Adapter (Anritsu part number 40‑168‑R) or Automotive Cigarette Lighter Adapter (Anritsu part number 806‑141‑R). Both items are included as standard accessories (refer to the list of accessories in the Technical Data Sheet for your specific instrument, as listed in section Introduction).
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When using the Automotive Cigarette Lighter Adapter, Anritsu Part Number 806‑141‑R, always verify that the supply is rated for a minimum of 60 Watts at 12 VDC and that the socket is clear of any dirt or debris. If the adapter plug becomes hot to the touch during operation, then discontinue use immediately.
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To turn on the Spectrum Master (MS272xB or MS8911B), press the On/Off button on the front panel (Figure 1‑1).
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The MS2721B in Figure 1‑1 is equipped with the Tracking Generator (Option 20).
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The Spectrum Master takes approximately sixty seconds to complete power‑up and to load the application software. At the completion of this process, the instrument is ready to be used.
