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* '''What are the best batteries for the (insert handheld model)?
 
* '''What are the best batteries for the (insert handheld model)?
 
** See the {{Thread|uniden-tech-support.248|439085-best-batteries-for-uniden-bcd325p2.html|Best Batteries for the 325P2}}
 
** See the {{Thread|uniden-tech-support.248|439085-best-batteries-for-uniden-bcd325p2.html|Best Batteries for the 325P2}}
−
 
+
*'''Problems/Questions about charging the 396t's batteries'''
 +
**First: To charge the batteries, the switch in the battery compartment must be in the "NI-MH" position to enable charging. If you plug-in your scanner, and it says "charge off" on the screen, the switch is in the "alkaline" position (and will not charge the batteries). Next, with the switch in the "NI-MH" position, once you start charging the batteries the screen with read "Normal charging." The 396t's internal charger uses a 14 hour timer to determine when the charging cycle is complete. After 14 continuous (that is, uninterrupted) hours of charging, the display will change to "Charge complete." Interrupting the 14 hour charging cycle (for example, by unpluging the scanner after only a couple of hours of charging), will cause the scanner to start the 14 hour cycle from the beginning again when you next attempt to charge your scanner.
 +
** It is highly recommended to use an external charger. Numerous users have noticed the batteries tend to get very hot after an extended charge. This has been widely documented as a cause of shorter battery life, and may cause damage in extreme cases.
  
 
===Connection Issues===
 
===Connection Issues===

Revision as of 19:17, 8 April 2023

Welcome to the Uniden DMA FAQ; here we'll start from scratch, and take you through some of the most basic of questions, and (in many cases) what things mean and how to find information. A word of explanation; if a word or phrase appears in blue and/or underlined, then it's a link; clicking it should take you to another article in our wiki, another part of our website or perhaps a different website.


What Models Does This FAQ Cover?

This FAQ covers the Uniden models that utilize 2 tier DMA memory architecture, specifically those shown in the table below. We have additional, separate FAQs for the DMA 3 tier Uniden products, though many things listed below, are directly applicable;

Non-XT XT P2
SC230 BC346XT(C) BCD325P2
BC246T BCD396XT BCD996P2
BR330T BCT15X
BCD396T BCD996XT
BCT15
BCD996T


The Nuts and Bolts

  • If you're a newcomer, you've probably already discovered that there's a huge amount of terms that seem unfamiliar to you. Our Glossary has lots of these terms, along with definitions. Just click on the term you wish to view.
  • When looking at frequencies in our database, float your mouse over the column header, and you should get a balloon with a brief description of the terms and abbreviations that are used there.
  • The biggest hurdle for many is the concept of trunking. Our Trunking Basics article will get you started, as well as this PDF file written by UPMan. Note that you will need Adobe Acrobat or a compatible reader (such as Foxit) to read it.


Relevant Resource Material

  • THIS IS A NEW PAGE


Dynamic Memory Architecture (DMA)


Features and Functions

Close Call


Control Channel Only


Digital End Code Detection


Fire Tone Out


Firmware Updates and Rebanding


Location Based Scanning


Miscellaneous


Trunking


Undocumented Features

  • For undocumented hacks, please see our DMA Scanner Hacks article
  • For basic test modes typically technicians use to access hidden features, any user could try and see what might work, please see our Uniden scanner test modes article.


Issues

Access Channel Directly?

  • How do I jump directly to a channel?


Audio Cuts Out

  • Why does audio cut out every 2 or 5 seconds?
    • You have one of the following modes turned on:
      • if you have a BCT15 or BCT15X, you might have the BearTracker feature turned on (press HP until BP is no longer on the display to turn it off).
      • If the audio cuts out every 2 seconds regardless of mode, you have Close Call priority turned
      • If the audio cuts out every 5 seconds, you have Weather Priority turned on.
      • If the audio cuts out only when you are scanning a conventional system, you have Priority turned on. By default the audio will cut out every 2 seconds, but this is user configurable from 1-10 seconds.
  • For audio issues (P25 decoding sounds bad, broken-up, unintelligible etc.) please see our DMA P25 Decoding and Audio Issues article


Batteries

  • What are the best batteries for the (insert handheld model)?
  • Problems/Questions about charging the 396t's batteries
    • First: To charge the batteries, the switch in the battery compartment must be in the "NI-MH" position to enable charging. If you plug-in your scanner, and it says "charge off" on the screen, the switch is in the "alkaline" position (and will not charge the batteries). Next, with the switch in the "NI-MH" position, once you start charging the batteries the screen with read "Normal charging." The 396t's internal charger uses a 14 hour timer to determine when the charging cycle is complete. After 14 continuous (that is, uninterrupted) hours of charging, the display will change to "Charge complete." Interrupting the 14 hour charging cycle (for example, by unpluging the scanner after only a couple of hours of charging), will cause the scanner to start the 14 hour cycle from the beginning again when you next attempt to charge your scanner.
    • It is highly recommended to use an external charger. Numerous users have noticed the batteries tend to get very hot after an extended charge. This has been widely documented as a cause of shorter battery life, and may cause damage in extreme cases.

Connection Issues

  • The drivers are installed and cable connected but I cant connect to my software
  • Unless you're using an older home PC, serial ports are a thing of the past. You will need a USB-serial converter to connect the PC and scanner. While Scanner Master sells the USB-1, there are several other off the shelf ones that are known to work. See the Connecting scanners via USB article for a list of examples, along with an explanation on how to use Windows Device Manager to diagnose connection issues. Many desktop "Business PCs" still have serial ports.
  • Each scanner has a specific setup procedure to set the baud rate on the scanner's port(s) . This article summarizes the necessary steps
  • For the following issues, please see our DMA Scanners and Software article
    • Connecting the scanner to the PC
    • Programming questions
    • Software packages


FM Broadcast Interference


Nothing to Scan

  • I see the Nothing to Scan error message or
  • I turned off all my Favorites, Systems, or Groups off. What Should I do to re-enable Quick Keys?


Power button

  • I press the power button, but my Handheld i.e. (BCD396t BCD436HP) won't turn On, What gives?
    • You must press and HOLD the Power Button for a full two seconds to turn the radio On (or Off). This is a safeguard, to prevent turning the scanner On or Off accidentally, such as: when you're carrying it in your pocket or on a belt.


BCD325P2 and BCD996P2 only

DMR and MOTOTRBO


NXDN


Serial Port Drivers

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