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Uniden DMA Scanner Display Questions

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Display Questions

What are the little numbers that sometimes appear in the top/right corner of the display?

  • This is the battery voltage indicator in the handheld/portables (like the BCD396t or BCD325P2) or in the desktop/mobiles it is the Volume and Squelch settings.
    • Those Voltage display can be used to detect bad rechargeable batteries. Simply, put batteries in - without power, note Voltage then turn on backlight on/off, if the voltage drops more than 1-3 one hundredth(#.#H) of a volt, you will now know one of the batteries is nearing end of life, if it drops by 1 or 2 tenths (#.T#) you have seriously degraded batteries that could cause a fire hazard in any device, either Recharge or Use, discontinue use immediately.
      • To narrow down which cell(s) might be bad - plug in power, change 1 battery at a time, remove power and try LED, to observe Voltage drops. Remember it is best if held on one system/site with a TGID without active transmissions. In Scanners with that recharge, switch the internal battery compartment switch to Alkaline.
  • With power added on handheld/portables like the BCD396t, BCD436HP, and BCD325P2 typically the voltage should increase 1 tenths of a volt i.e. from 3.75v to 3.85v or from 2.65v to 2.75v.


What do the three numbers that appear sometimes at the bottom of the display mean?

  • These are the Digital P25 decode Threshold Setting values. They are the voltage levels used by the internal analog-to-digital converter and unto the DSP, determining how the P25 signals are decoded. Please see the appropriate Easier to Read manual for your scanner for a good explanation of what these figures mean or See our P25_audio_decode_level_adjustment article for more details.

What is DSKP?

  • DSKP stands for Data Skip and appears on the display when it is turned on. It controls behavior when Searching and for Close Call when the scanner stops on a channel with a data signal. If On, it stops briefly, then immediately resumes scanning. If Off, it remains on the channel until the transmission stops. This is ignored for AM channels. The default is Off.
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