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The P-SB11-ANC Released in 2021, Includes a Dual Channel Adjustable Noise Control filter that allows you to Receive Spirit Responses while eliminating the sweep sound during your Spirit Box Sessions. When we ship a P-SB11-ANC, it has been fully tested and the ANC is preset to an optimal level for best results. Should you decide to make any changes, simply increase or decrease the filter using 2 buttons for more or less Noise. The ANC makes hearing and deciphering Spirit Responses a lot easier. 

The P-SB11-ANC utilize a proprietary software algorithm that Dynamically adjusts the Noise Filter Hold and Release times based on sweep speeds selected. This technique recognizes a potential response and determines how long to hold the threshold open within the sweep pulse before releasing the signal. It helps to achieve a higher percentage of complete words responses.

All other Features and specifications for our standard P-SB11 remain the same. 

The P-SB11-ANC features user selectable single and dual AM/FM Sweep capabilities, Adjustable Sweep Rates, Forward / Reverse Sweep, Dual Audio Outputs, Selectable AM/FM Antenna Attenuation, Built in high intensity Red LED Flashlight, Audio Mute while Sweeping, Adjustable volume, Visual & Audible Hot & Cold Spot Detection with selectable Sound.


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  • Single or Dual Simultaneous Sweep
  • AM/FM Selectability
  • Adjustable Sweep Speeds - 50msec through 350msec in 50msec increments.
  • Forward and Reverse Sweep Directions
  • Adjustable Antenna Signal Attenuation
  • Ambient Temperature Deviation Detection (ATDD) Hot & Cold Spot Detection with Red / Blue LED Array
  • High Intensity RED LED Flashlight
  • Dual Simultaneous Audio Outputs
  • Expandability & Upgrade Compatibility

Directions For Use:

1. 1.Remove P-SB11-ANC from the box and install a 9VDC Alkaline battery (provided) into the battery hatch located on the back of the device.

2. 2.Slide the Power switch to the ON position

3. 3.Press the Function button once to activate CHN1 only.

4. 4.Adjust Sweep rate to 150-200ms or other preferred setting

5. 5.Press REV or FWD sweep direction

6. 6.Increase Volume slowly until you begin to hear some noise. Stop when you hear noise. This represents the ANC filter factory preset level.

7. 7.Press the Function button once to activate CHN2 only.

8. 8.Repeat steps 4-6 above.

9. 9.Press the Function button again to activate both CHN1 and CHN 2

P-SB11-ANC Spirit Box

  • $249.90