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- | ====== DMR ====== | ||
- | ===== Overview ===== | ||
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- | ==== DMR Benefits ==== | ||
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- | ===== What is a Color Code? ===== | ||
- | In a MOTOTRBO radio or repeater, there is a color code field which allows the selection of one of 15 color codes. A radio which has been programmed with color code 1 will not be able to transmit on a repeater configured with color code 2 and so forth. A radio can be configured with multiple color codes - one for each channel. A repeater can only be configured with one color code. | ||
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- | Color code is useful because it can prevent radios from one site or system mistakenly roaming to another site or system which uses the same frequencies. Although there is activity from the neighboring system, the radio will ignore all transmissions from the other system because it has a different color code. | ||
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- | This is also useful for telecommunication regulators who have to allocate the same frequency to two DMR licensees in the same region. The regulator simply has to specify a color code in the license conditions - much like PL/DPL was used in analogue as a guard tone. | ||
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- | There is a limitation of course, if two geographically adjacent radio systems use the same frequencies, | ||
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- | ===== What is a Talkgroup? ===== | ||
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- | ===== What is a C-Bridge? ===== | ||
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- | ===== What is a Code Plug? ===== | ||
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- | ===== Who is DMR-MARC? ===== | ||
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- | ===== Who is BrandMeister ===== | ||
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- | === Related Links === | ||
- | * [[https:// | ||
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- | ==== DMR on RepeaterBook ==== | ||
- | Repeaterbook.com understands that DMR is a digital format that operates at a bandwidth of 12.5 kHz. DMR can control access to the repeater with a color code. It is much like CTCSS, but the signal is sent outside of the digital voice frame. | ||
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- | DMR incorporates talk groups and the available talk groups are tracked by Repeaterbook.com. They can belong to large networks, which is also tracked by Repeaterbook.com. | ||
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- | ==== DMR APIs on RepeaterBook ==== | ||
- | Repeaterbook.com utilizes two APIs to supplement repeater data. | ||
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- | === radioed.net === | ||
- | In order to use DMR through Internet Protocol Site Connect (IPSC) servers, each DMR appliance (radio, repeater, hot spot, etc.) needs to have a DMR ID. For the amateur radio service, these can be obtained through [[https:// | ||
- | - Repeaterbook queries the repeater call sign and frequency to obtain the DMR ID. | ||
- | - Repeaterbook queries the DMR ID to obtain the color code and IPSC information. | ||
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- | Radioid.net rules require a registrant to use their own call sign and not the repeaters call sign. In some circumstances, | ||
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- | The API is queried by Repeaterbook whenever a repeater is edited or moderated at the admin level. It is also automatically queried when a new DMR repeater is added to the database. The listed color code, DMR ID, and ISPC Network is gathered and recorded to the repeater' | ||
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- | If there is incorrect data on Repeaterbook which would include the DMR ID or color code, this data can be changed and overridden by a Repeaterbook admin. However, the IPSC is queried directly from radioed.net and written directly to the database. Repeaterbook would encourage repeater managers to update the data on Radioid.net so that Repeaterbook can obtain the correct information. | ||
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- | === BrandMeister.info === | ||
- | BrandMeister also hosts the [[https:// | ||
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- | Repeater managers can change the display of the static talkgroups by updating their settings on Brandmeister.network. Repeater owners can also request an admin to update the Repeaterbook list of talkgroup info. Repeater managers may also request to be made a [[custodian|Repeater Record Custodian]] and manage talkgroups on their own (self service). | ||
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- | ===== Other Resources ===== | ||
- | * [[http:// |