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| − | ==Introduction==
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| − | '''Control Channel Only (CCO)''' is available in selected makes and models of scanners, when trunking [[Motorola]] systems and [[P25]] trunking systems. For the older Uniden scanners that utilize [[banks and lists]] only 800/900 MHz trunking is supported; it is available on all bands where trunking is supported in the Uniden scanners that support [[DMA]].
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| − | CCO programming is recommended for use in selected RS scanners starting with the Pro-93 in bands where [[Motorola]] trunking is supported and this includes all P25 trunking bands for the Pro-96/2096 and the GRE PSR-500/600 scanners. It enables the user to trunk a system by programming in only those channels that are utilized as a [[control channel]], instead of having to utilize memory to program the entire system. This mode works for both analog and digital systems.
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| − | In the RR database, these frequencies are marked in {{color|red|RED}} with a {{color|red|(c)}} for the {{color|red|primary control channel}}, and {{color|blue|BLUE}} with an {{color|blue|(a)}} for any {{color|blue|alternate control channel}}. Be sure to program both {{color|red|primary}} and any {{color|blue|alternate}} control channels. An example can be viewed [http://www.radioreference.com/modules.php?name=RR&sid=187 here] . In this case there are 4 control channels; 2 primary and 2 alternates.
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| − | Note: If the control channel should changes, and it isn't one of the ones programmed in the list, trunking using CCO will fail. You can thus use this mode to flag if any new control channels suddenly become active in the system.
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| − | Older Uniden radios require that a band plan be programmed, as well as all the control channels, for CCO to work. RS/GRE radios including the New Whistler radios, as well as the newer [[DMA]] based Uniden scanners, do not require a plan. In addition, no plan is required when utilizing CCO in the 900 MHz band.
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| − | ==Scanners known to support CCO==
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| − | {| border="1" cellpadding="5" class="wikitable" style="border-collapse:collapse"
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| − | |-
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| − | ! !! Uniden !! RS/Uniden !! GRE !! RS/GRE !! Whistler
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| − | |- valign="top" <!-- Mobiles -->
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| − | | Mobile
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| − | | <!-- Uniden -->
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| − | * [[BCD996P2]]
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| − | * [[BCD996XT]]
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| − | * [[BCD996T]]
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| − | * [[BCT15X]]
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| − | * [[BCT15]]
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| − | * [[BC898T]]
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| − | * [[BCT8]]
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| − | * [[BC796D]]
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| − | * [[BC785D]]
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| − | * [[BC780XLT]]
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| − | | <!-- Radio Shack by Uniden -->
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| − | * [[Pro-160]]
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| − | * [[Pro-433]]
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| − | * [[Pro-2051]]
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| − | | <!-- GRE -->
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| − | * [[PSR-600]]
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| − | * [[PSR-400]]
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| − | | <!-- Radio Shack by GRE/Whistler -->
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| − | * [[Pro-652]]
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| − | * [[Pro-197]]
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| − | * [[Pro-163]]
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| − | * [[Pro-2055]]
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| − | * [[Pro-2096]]
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| − | * [[Pro-2053]]
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| − | | <!-- Whistler -->
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| − | * [[WS1095]]
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| − | * [[WS1098]]
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| − | |- valign="top" <!-- Handhelds -->
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| − | | Handheld
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| − | | <!-- Uniden -->
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| − | * [[BCD325P2]]
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| − | * [[BCD436HP]]
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| − | * [[BCD396XT]]
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| − | * [[BCD396T]]
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| − | * [[BC346XT]]
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| − | * [[BR330T]]
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| − | * [[BC246T]]
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| − | * [[BC296D]]
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| − | * [[BC250D]]
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| − | | <!-- Radio Shack by Uniden -->
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| − | * [[Pro-162]]
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| − | * [[Pro-528]]
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| − | * [[Pro-94]]
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| − | | <!-- GRE -->
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| − | * [[PSR-800]]
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| − | * [[PSR-500]]
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| − | * [[PSR-300]]
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| − | | <!-- Radio Shack by GRE/Whistler -->
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| − | * [[Pro-668]]
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| − | * [[Pro-651]]
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| − | * [[Pro-107]]
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| − | * [[Pro-106]]
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| − | * [[Pro-164]]
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| − | * [[Pro-97]]
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| − | * [[Pro-96]]
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| − | * [[Pro-95]]
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| − | * [[Pro-93]]
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| − | * [[Pro-92]]<br/>(A and B<br/>models only)
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| − | | <!-- Whistler -->
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| − | * [[WS1080]]
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| − | * [[WS1088]]
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| − | |-
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| − | | Notes: || See Uniden Plan<br/>Information below || || || ||
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| − | |-
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| − | |}
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| − |
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| − | ==Uniden Plan Information==
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| − | For those radios that require a plan to use CCO, there are 4 possibilities;
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| − | * '''PLAN 1:''' if the last three digits of ALL the frequencies in use end in one of the following three digits: 125, 375, 625, or 875 (example: 856.1125, 860.7375, 859.6625, 855.8875).
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| − | * '''PLAN 2:''' If ALL the frequencies are less than 869.0000 and end in one of the following three digits (125, 375, 625, or 875) and if ANY other frequencies end in (000, 250, 500, or 750)
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| − | * '''PLAN 3:''' If the last three digits of ALL the frequencies in use end in one of the following three digits (000, 250, 500, or 750)
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| − | * '''PLAN 4:''' If ALL the frequencies are less than 866.0000 and end in one of the following three digits (000, 250, 500, or 750) and if ANY other frequencies end in (125, 375, 625, or 875)
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| − |
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| − | ==Hints and Tips==
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| − | If you need to trunk a multi site system (particularly if you are mobile, and moving from the coverage from one site (a) to the next (b), programming a dummy channel (c) will allow the scanner to move to another site(a,b,d) better during inactivity from the current site(a). The following illustrates the programming:
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| − | {| class="wikitable unsortable" border="1" style="border-collapse:collapse"
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| − | ! ex.
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| − | ! Site
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| − | ! Frequency
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| − | |-
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| − | |(a)
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| − | |Site001
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| − | | align="right" | 868.17500
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| − | |-
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| − | |(c)
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| − | |Dummy
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| − | |1300.00000
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| − | |-
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| − | |(b)
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| − | |Site002
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| − | | align="right" | 868.22500
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| − | |-
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| − | |(d)
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| − | |Site002
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| − | | align="right" | 868.65000
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| − | |-
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| − | |(e)
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| − | |Dummy
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| − | |1300.00000
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| − | |-
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| − | |}
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| − | The dummy frequency (e) could be any valid frequency that is unused in your area (free of signal). Programming a used channel (c), in this position, could interfere with normal trunking. This tip works with the PRO-96 and 2096. (Thanks to user "fmon" for the tip and suggestion for the writeup) and could possibly work for other makes & models *amendment is needed here ***
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| − |
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| − | <small> Some of this information courtesy of the [http://www.scannersoft.com/control_channel_only.htm Control Channel only] tutorial page at the Scan Control website</small>
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| − | [[Category:RR Glossary]]
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| − | [[Category:Scanners Glossary]]
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| − | [[Category:Trunktracking Glossary]]
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