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Updates the Aliases wiki page with P25 alias examples.
@@ -15,6 +15,10 @@ Table of Contents
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* [Example: P25 Aliases](#example-p25-aliases)
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* [Example: Audio Priority](#example-audio-priority)
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* [Example: Audio Streaming](#example-audio-streaming)
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* [Example: Alias with Wildcard P25 Talkgroup](#example-alias-with-wildcard-p25-talkgroup)
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* [Example: Audio Recording](#example-audio-recording)
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Example: Alias with Wildcard P25 Talkgroup
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Aliases are a powerful feature in sdrtrunk that enable you to assign meaning to
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many of the logical identifiers found in radio communication systems. An
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@@ -419,7 +423,7 @@ using the aliases created in the [first example](#example-create-aliases-for-an-
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In the [audio priority](#example-audio-priority) example, we setup the ABC Trucking bus fleet
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to Do Not Monitor so that we did not have to listen to bus radio calls on our local computer.
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However, other listeners have requested to hear the bus fleet streaming over the internet. So,
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we've already setup a local Icecast audio steraming server and configured an audio stream with
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we've already setup a local Icecast audio streaming server and configured an audio stream with
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a name of **ABC Trucking Audio Stream**. Next, we'll setup the ABC Trucking buses talkgroup to
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stream to the server.
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@@ -430,8 +434,74 @@ stream to the server.
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* Note: even though the stream is listed in the drop-down box, you must click the down arrow and
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select the ABC Trucking Audio Stream entry for it to be recognized.
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1. Click the **Save** button.
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1. The completed P25 audio priority is shown in **Figure 8** below.
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1. The completed audio streaming setup is shown in **Figure 8** below.
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**Figure 8:** Setup ABC Trucking for Internet Audio Streaming
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Example: Alias with Wildcard P25 Talkgroup
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---
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We often listen to radio systems that can contain hundreds of user talkgroups and thousands of
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individual radios. When we don't want to create aliases for each and every one of these
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users and talkgroups, we can create wildcard aliases as a catch-all alias for large groups
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of these users and talkgroups. The wildcard alias is useful for matching large groups of users
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and applying actions like **Non-Recordable** or **Do Not Monitor** alias identifiers.
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1. In the **Aliases** tab, click the **New** button to create a new Alias.
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1. Setup the alias with the following values:
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* **Name:** All Other Talkgroups
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* **List:** ABC Trucking
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* **Group:** Blacklisted Talkgroups
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* **Color:** Red
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* **Icon:** No Icon (default)
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1. Click the **Save** button.
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1. The completed alias is shown in **Figure 9**.
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**Figure 9:** Wildcard Alias
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Next, we assign a wildcard talkgroup identifier to the alias. The asterisk (*) is used to
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wildcard individual identifier characters. Since P25 talkgroups are four hexadecimal
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characters long, our wildcard pattern must also be four characters long. We use
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an asterisk to match each hexadecimal digit, so the final pattern will be four asterisks.
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**Note:** the four asterisk pattern will only match identifiers that are four characters long,
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like P25 talkgroups. Since P25 radio identifiers are six hexadecimal characters, they will
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not match this four asterisk pattern. If we want to match groups of P25 radio identifiers,
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we would use some combination of hexadecimal characters and asterisks to form a six
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character value.
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1. Select the **All Other Talkgroups** alias in the alias table.
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1. Click the **Audio/Identifier** tab in the alias editor.
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1. Click the **New** button at the bottom of the alias editor and select **Talkgroup**.
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1. Type **** (4 wildcard asterisks) in the talkgroup field.
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1. Click the **Save** button.
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1. The completed P25 wildcard talkgroup alias identifier is shown in **Figure 10** below.
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**Figure 10:** Wildcard Talkgroup
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Example: Audio Recording
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---
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In this example, we're going to turn on audio recording so that we can record only
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the audio from the ABC Trucking bus and local fleets. Since we do not want to record
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any other talkgroups that may be active on the radio system, we have to create a
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wildcard alias that will match all other talkgroups.
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Follow the [wildcard alias](#example-alias-with-wildcard-p25-talkgroup) example above
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to create a P25 Alias with a wildcard talkgroup alias identifier.
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Next, we'll designate our wildcard alias as **Non-Recordable**.
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1. Select the **All Other Talkgroups** alias in the alias table.
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1. Click the **Audio/Identifier** tab in the alias editor.
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1. Click the **New** button at the bottom of the alias editor and select **Audio Non-Recordable**.
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1. Click the **Save** button.
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1. The completed recording blacklisted wildcard talkgroup is show in **Figure 11** below.
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**Figure 11:** Wildcard Audio Non-Recordable
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