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Difference between revisions of "Dynamic Memory Architecture"

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'''Dynamic Memory Architecture''', or DMA, is Uniden's scheme for storing and organizing systems, sites, groups, channels, and talkgroups in a scanner.
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::'''Memory '''
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''Dynamic Memory Architecture'' or '''DMA''', is Uniden's File layer structure, for storing and organizing favorites (if applicable) systems, sites, groups (and or departments), channels, and talkgroups in a scanner.
  
A scanner that implements DMA has a pool of memory to store any programmed data.  The pool is divided into blocks.
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A scanner that implements DMA has a pool of memory "blocks" to store any programmed data.  The pool allows memory to be allocated to any and all info being saved, as opposed to older scanners, where their the memory for each channel/bank were hard code to a specific memory address on the a non-volatile memory chip.
  
A ''System'' is the top-most element that can be created in DMA.  Within each system, a number of ''Groups'' can be created.  Within each Group, a number of ''Channels'' (for a conventional System) or ''Talkgroups'' (for a trunked System) can be created.
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A ''System'' is the top-most element that can be created in DMA (since expanded to ''Favorite List'' w "HP" in the naming).  Within each ''System'', a number of ''Groups''(changed to ''Depatments'' w "HP" in the naming) can be created.  Within each Group, a number of ''Channels'' (for a conventional System) or ''Talkgroups'' (for a trunked System) can be created.
  
Some scanners allow [[Uniden Multi-Sites Trunking]] to be programmed for a trunked System.
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Some scanners allow [[Uniden Multi-Sites Trunking]] to be programmed for a trunked ''System'' essential when a multi-site set-up includes common TGID's.
  
 
Each System, Site, Group, Channel, or Talkgroup will occupy one or more blocks.
 
Each System, Site, Group, Channel, or Talkgroup will occupy one or more blocks.
  
Each System can be assigned a ''System Quick Key'' to easily enable or disable the System to be scanned.  If the scanner implements Sites to be programmed for a System, usually each site may be programmed with a Site Quick Key. Likewise, Groups can be assigned a ''Group Key Quick''.
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Each System can be assigned a ''System Quick Key'' or '''SQK''' to easily enable or disable the System to be scanned.  If the scanner implements Sites to be programmed for a System, usually each site may be programmed with a Site Quick Key also SQK.  
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Each Groups can be assigned a ''Group Quick Key'' or '''GQK''', groups can be a mix of a single digital system's TGIDs and an analog frequency\channel or just one or the other them.  
  
The number of memory blocks varies by scanner.  The allowable number of Systems, Groups within a System, and Channels/Talkgroups within a Group also vary by scanner model.
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The number of memory blocks varies by scanner.  The allowable number of Systems, Groups within a System, and Channels/Talkgroups within a Group\Departments also vary by scanner model.
  
The following Uniden models use Dynamic Memory Architecture.
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The following Uniden models use the Dynamic Memory Architecture as a base structure.
  
 
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==How Can I Get Started?==
 
==How Can I Get Started?==
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As suggested in the above article, the use of a spreadsheet or other columnar layouts will help in getting things organized.
 
As suggested in the above article, the use of a spreadsheet or other columnar layouts will help in getting things organized.
  
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Newer BCDx36HP series contain less non-volatile memory and a user are allowed to purchase larger volatile memory mini-SD cards.
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Return to the [[Uniden DMA FAQ]]
 
Return to the [[Uniden DMA FAQ]]
  

Revision as of 13:08, 27 April 2016

Dynamic
Memory
Architecture

Dynamic Memory Architecture or DMA, is Uniden's File layer structure, for storing and organizing favorites (if applicable) systems, sites, groups (and or departments), channels, and talkgroups in a scanner.

A scanner that implements DMA has a pool of memory "blocks" to store any programmed data. The pool allows memory to be allocated to any and all info being saved, as opposed to older scanners, where their the memory for each channel/bank were hard code to a specific memory address on the a non-volatile memory chip.

A System is the top-most element that can be created in DMA (since expanded to Favorite List w "HP" in the naming). Within each System, a number of Groups(changed to Depatments w "HP" in the naming) can be created. Within each Group, a number of Channels (for a conventional System) or Talkgroups (for a trunked System) can be created.

Some scanners allow Uniden Multi-Sites Trunking to be programmed for a trunked System essential when a multi-site set-up includes common TGID's.

Each System, Site, Group, Channel, or Talkgroup will occupy one or more blocks.

Each System can be assigned a System Quick Key or SQK to easily enable or disable the System to be scanned. If the scanner implements Sites to be programmed for a System, usually each site may be programmed with a Site Quick Key also SQK. Each Groups can be assigned a Group Quick Key or GQK, groups can be a mix of a single digital system's TGIDs and an analog frequency\channel or just one or the other them.

The number of memory blocks varies by scanner. The allowable number of Systems, Groups within a System, and Channels/Talkgroups within a Group\Departments also vary by scanner model.

The following Uniden models use the Dynamic Memory Architecture as a base structure.

Model Analog (AM/FM) Digital (Phase 1) Digital (Phase 2) Trunking
BCD396T Yes Yes Yes
BCD396XT Yes Yes Yes
BR330T Yes Yes
BC346XT Yes Yes
BC246T Yes Yes
SC230 Yes
BCD996T Yes Yes Yes
BCD996XT Yes Yes Yes
BCT15 Yes Yes
BCT15X Yes Yes
BCD325P2 Yes Yes Yes Yes
BCD996P2 Yes Yes Yes Yes
BCD436HP Yes Yes Yes Yes
BCD536HP Yes Yes Yes Yes


How Can I Get Started?

Your first step begins with an article written by UPMan called Scanner Programming;Man Machine Interface. This article will give you an introduction into how to set up a DMA radio. While the article was written before all the current models were in production, the basic ideas are still the same. A basic description of the architecture can be found here.

How do I Lay Out My Groups and Systems?

As suggested in the above article, the use of a spreadsheet or other columnar layouts will help in getting things organized.

Newer BCDx36HP series contain less non-volatile memory and a user are allowed to purchase larger volatile memory mini-SD cards.

Return to the Uniden DMA FAQ