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    Sam Drazin
    Adding Backup Frequencies
    Topic posted November 15, 2011 by Sam DrazinExpert, last edited December 6, 2013 by AdminProficient, tagged how-to 
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    Title:
    Adding Backup Frequencies
    Description:

    Overview

    Backup frequency management is a new feature to Wireless Workbench 6. You can request backup frequencies for networked and non-networked devices in advance, or configure Wireless Workbench to automatically calculate as many backup frequencies as possible.

    Related Links

    What Are Backup Frequencies?

    Backup frequencies are frequencies that are designated as spares for devices in your inventory. There are two classes of backup frequencies in Wireless Workbench:

    • Requested
    • Automatic

    Each of these types of backups are handled slightly differently within Wireless Workbench. They are explained in greater detail below.

    Requested Backups

    Requested backups are backup frequencies that you explicitly ask for. They can be added via the Add New Device dialog.

    Select the "Add new device" button from the global menu bar, and specify the Manufacturer, Model, and Band of the device you'd like to add backups for. Note that you can add active devices into your inventory at the same time while adding backup frequencies.

    To add only backup frequencies without adding devices into inventory, set the number of "Active Devices" to zero. Specify the number of backups you would like to add by entering that number in the "Backup Frequencies" field. Select "Add" to add them.

    459aedf126_01.png

    The status message at the bottom of the Add New Device dialog will confirm that they were successfully added. Backup frequencies are not displayed in the inventory view. Instead, they are shown in the bottom section of the Channel Summary dialog, accessible from the top right button within the Frequency Coordination tab.

    When you perform Frequency Coordination, you will see that your requested backup frequencies will be calculated by the frequency calculator. The count of successfully calculated backups will be shown in the "Backups" column of the RF Coordination Results panel.

    459aedf126_02.png

    NOTE: Under the Primary/Backups columns, X/Y is a ratio that indicates the number of found vs. requested frequencies, where:

    • X is the number of found frequencies
    • Y is the number of requested frequencies

    Check out the Frequency Coordination tutorial video for more information on Frequency Coordination.

    Automatic Backups

    Automatic backups are backup frequencies that Wireless Workbench can be configured to calculate. When this option is enabled, the frequency calculator will calculate as many backup frequencies as possible.

    NOTE: Calculation of automatic backup frequencies will only occur after all requested primary and backup frequencies have been found, so enabling this preference will never take precedence over your specified (requested) frequencies.

    To enable this option, open the Preferences menu, and access the Coordination tab. Check the preference that reads "Automatically calculate backup frequencies". Press "Save" to commit this change.

    459aedf126_03.png

    Now when you perform Frequency Coordination, you will see that all requested frequencies will be calculated first (primaries and backups). Once these frequencies have been calculated, automatic backup frequencies will begin to be calculated by the frequency calculator.

    The count of successfully calculated automatic backups will be shown in the "Backups" column of the RF Coordination Results panel. When automatic backups are found, you will see results like "54/4" in the Backups column, indicating that more frequencies were found than requested.

    The calculator will search for automatic backups until it appears that no more will be found. This may take some time, and you can stop the calculator at any time if sufficient backups have already been found. Press the "Stop" button to end the calculation and keep the results up to that point.

    459aedf126_04.png

    Check out the Frequency Coordination tutorial video for more information on Frequency Coordination.

    Adding Backup Frequencies to Existing Coordination

    You may find yourself in the situation where you want to add backup frequencies to an existing coordination. To do this, open the Add New Device dialog, and specify the backup frequencies you want to add (by selecting Manufacturer/Model/Band, and number of backups to add).

    NOTE: Be sure to specify the number of Active Devices as zero if you don't want to add any more primary devices to your inventory.

    You will now need to calculate new frequencies for only those newly added backups without changing the frequency values of the other channels in your existing coordination. This is done by selecting only the channels that should receive new frequencies (eg: the backups you just added) in the Channel Summary dialog.

    On the Frequency Coordination tab, select "Manage Channels..." to open the Channel Summary dialog.

    459aedf126_05.png

    The Channel Summary dialog is displayed. Every channel checked is slotted to receive a new frequency the next time frequency coordination is performed. In this example, we have two primary channels (AXT400 A) that already have frequency values, and we want to keep them there. We uncheck them to specify this.

    We added four backup frequencies to this coordination, all of which do not have frequency values and need to be coordinated. These will be checked. Select "OK" to commit these changes.

    NOTE: The Channel Summary dialog will retain the selection state of all channels. Be sure to inspect this window before you perform frequency coordination to ensure that the right selections are made.

    459aedf126_06.png

    The next time frequency coordination is performed, notice that no primary frequencies will be calculated, and only the four checked backups will receive new frequencies.

    459aedf126_07.png

    We have successfully added backup frequencies with compatible frequency values to an existing coordination without modifying our initial inventory.

    For a full description of how to select certain frequencies from the Channel Summary dialog (a.k.a. "Channel Management dialog"), consult the Add Frequencies to an Existing Coordination tutorial video.

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