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Trilithic CT-4 Operation Manuals

Digital leakage tagger
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CT-4
Digital Leakage Tagger
User's Guide

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Summary of Contents for Trilithic CT-4

  • Page 1 CT-4 Digital Leakage Tagger User’s Guide...
  • Page 2 Terms and conditions Specifications, terms, and conditions are subject to change without notice. The provision of hardware, services, and/or software are subject to VIAVI standard terms and conditions, available at www.viavisolutions.com/en/terms-and-conditions. CT-4 User’s Guide Page 2 Document Num., Rev. 5 May 2018...

  • Page 3: Table Of Contents

    CT-2/3 Operation ......................9 CT-2/3 Application......................10 CT-4 Operation .......................10 CT-4 Application......................11 Equipment Supplied with Your CT-4..................11 Accessories & Replacement Parts for Your CT-4..............11 A Guided Tour of Your CT-4 ....................12 Front View ........................12 Rear View ........................13 Display Screen Navigation....................14 Chapter 3 Installation ..........................21...
  • Page 4 Leakage Receiver Tag Detection Support ..............25 Tag Modulation Settings ....................26 CT-2 Operation Mode Setup ....................27 CT-3 Operation Mode Setup ....................28 CT-4 Operation Mode Setup ....................30 Example Setup Using a Spectrum Analyzer ..............33 Typical Spectrum Analyzers ..................33 Advanced Spectrum Analyzers .................34 Example CT-4 Setup Scenarios..................35...

  • Page 5: Chapter 1 General Information

    For additional information about our products and services, contact your local VIAVI representative or visit https://www.viavisolutions.com/en-us/how-buy. Where to Get Technical Support Phone US: +1-844-GO-VIAVI or +1-844-468-4284 Outside US: +1-855-275-5378 Trilithic.support@viavisolutions.com Email: Website: https://support.viavisolutions.com/welcome CT-4 User’s Guide May 2018 Document Num., Rev. 5 Page 5...

  • Page 6: How This Manual Is Organized

    Chapter 1, “General Information” provides contact information and describes how this operation manual is structured. • Chapter 2, “Introduction” introduces what the CT-4 is and what it does. This chapter discusses the practical application, connections and controls of the CT-4. •...

  • Page 7: Conventions Used In This Manual

    The chosen frequency must closely match that of the leakage detector or leaks will not be detected properly. If the CT-4 appears to be out of calibration, the unit must be returned to VIAVI or a VIAVI authorized repair center for re-calibration.
  • Page 8 CT-4 User’s Guide Page 8 Document Num., Rev. 5 May 2018...

  • Page 9: Chapter 2 Introduction

    VIAVI leakage receivers generate an audible tone that varies in pitch depending on the leakage strength. When the CT-4 tags a leak, it causes this audible tone to rise and fall in pitch at a rate of: •...

  • Page 10: Ct-2/3 Application

    2 to 2000 uV/m (20 to 2000 uV/m for Seeker D Lite). The Seeker D and Seeker D Lite detect the proprietary signals from the CT-4 and scale the leakage value to match the adjacent analog or digital carrier as programmed into the meter.

  • Page 11: Application

    CT-4 Application Used as a system with the Seeker D and Seeker D Lite Digital Leakage Detectors, the CT-4 detects leaks in the Aeronautical and LTE frequency bands and eliminates all “false alarm” triggers. The CT-4 provides the following features: •...

  • Page 12: A Guided Tour Of Your Ct-4

    Front View 1. Display Screen – This LCD is used to display the setup and operational status of the CT-4. The setup information on most screens can be adjusted from the front panel of the device. 2. Select – This button is used to control the CT-4 as follows: •...

  • Page 13: Rear View

    Rear View 1. CT-4 Output – This is the RF output connection for the CT-4 function. 2. CT-2 Input – This is the RF input connection for the CT-2 function. 3. CT-2/3 Output – This is the RF output connection for the CT-2/3 function.

  • Page 14: Display Screen Navigation

    Display Screen Navigation The following images provide an example of the method used to navigate the menus available on the CT-4 display screen. Upon Startup this Screen Appears for Approximately 10 Seconds FROM CT SECURITY HOME SCREEN INACTIVITY TIMEOUT Select...
  • Page 15 Select CT-4 STATUS TO ADJUST SETTINGS Select Enter Enter Select Enter Select Enter Select Enter Select Enter Select Enter Select Enter Select Enter Select Select Enter Select CT-3 SETUP CT-4 User’s Guide May 2018 Document Num., Rev. 5 Page 15...
  • Page 16 Select Enter Enter Select Enter Select Enter Select Enter Select Enter Select Select Enter ONLY AVAILABLE Select WHEN SELECT = CT-3 Enter Select Enter Select Select CT-3 TECH SETUP CT-4 User’s Guide Page 16 Document Num., Rev. 5 May 2018...
  • Page 17 FROM Select CT-4 SETUP TO ADJUST SETTINGS Select Enter Enter Select Select Enter ETHERNET STATUS CT-4 User’s Guide May 2018 Document Num., Rev. 5 Page 17...
  • Page 18 Enter Enter Select Enter Select Enter Select Enter Select Enter Select Enter Select ONLY AVAILABLE WHEN USING = STATIC Select Select Enter Enter LOADS DEFAULT SETTINGS Select CT SECURITY CT-4 User’s Guide Page 18 Document Num., Rev. 5 May 2018...
  • Page 19 FROM CT-4 SETUP Select Enter Enter Select Enter LOADS DEFAULT SETTINGS Select Enter Enter LOADS DEFAULT SETTINGS HOME SCREEN CT-4 User’s Guide May 2018 Document Num., Rev. 5 Page 19...
  • Page 20 CT-4 User’s Guide Page 20 Document Num., Rev. 5 May 2018...

  • Page 21: Chapter 3 Installation

    Chapter 3 Installation Overview The CT-4 needs to be installed where it can be injected into the system to reach the customer base at the frequency ranges that are specified by the desired mode(s) of operation; • CT-2 Operation •...

  • Page 22: Installation Instructions

    Installation Instructions Typically a CT-4 should be installed at each location that an existing CT-2 or CT-3 is installed and in many cases this may require a CT-4 to be installed in each hub site and/or each head end. The following section explains the procedure used to install the CT-4. In order to properly setup the CT-4 the following steps must be completed in this order.

  • Page 23: Operation

    3. Connect the device to AC power. COMBINER CT-4 Operation For operation in the CT-4 mode, perform the following installation steps; 1. Select a suitable rack panel location near the combiner where RF signals reside and mount the CT-4 in the rack using four retaining screws.
  • Page 24 CT-4 User’s Guide Page 24 Document Num., Rev. 5 May 2018...

  • Page 25: Chapter 4 Setup

    & 146.2625 MHz, user configurable in 6.25 kHz steps using optional Seeker Setup software • Default modulation of 20 Hz, user configurable in 1 Hz steps using optional Seeker Setup software CT-4 User’s Guide May 2018 Document Num., Rev. 5 Page 25...

  • Page 26: Tag Modulation Settings

    The following VIAVI leakage detectors include CT-4 type tag detection: • Seeker D & Seeker D Lite • Low band frequency range of 135 to 139 MHz • High band frequency range of 610.5 to 615 MHz • Low & high bands are user configurable in 12.5 kHz steps using optional...

  • Page 27: Operation Mode Setup

    In the CT-2 operation mode, an external channel modulator is required to produce a channel that the CT-4 tag will be combined with. The CT-4 will generate a tag with 10 to 23 Hz (excluding 16 Hz) modulation that will be combined internally with the channel provided by the external channel modulator.

  • Page 28: Operation Mode Setup

    CT-3 Operation Mode Setup In the CT-3 operation mode, the CT-4 injects a tag with 10 to 23 Hz (excluding 16 Hz) modulation into a frequency agile CW carrier from 107 to 157.5 MHz. Perform the following steps to properly setup the CT-3 operation mode: 1.
  • Page 29 Navigate to the 3HZ TAG ENABLE menu and select • the ON option to enable the “warble” tone for supported devices. 6. Once the previous steps are completed the CT-3 tag will be enabled and properly functioning. CT-4 User’s Guide May 2018 Document Num., Rev. 5 Page 29...

  • Page 30: Operation Mode Setup

    CT-4 Operation Mode Setup In the CT-4 operation mode, the CT-4 injects proprietary dual CW carrier tags with either 156.25 or 625 Hz spacing between the carriers in the Aeronautical frequency (135 to 139 MHz) and/or LTE frequency (610.5 to 615 MHz) bands.
  • Page 31 9. Navigate to the CT-4 TAG menu and select spacing between each pair of dual carriers that matches the settings of the Seeker D and Seeker D Lite leakage detectors you will be using in your system: Select the 1 option to set the spacing between each pair of •...
  • Page 32 36 dB down from an adjacent analog carrier. 13. Navigate to the LOW RES VIEW menu and select the OFF option to enable normal operation. 14. Once the previous steps are completed the CT-4 tags will be enabled and properly functioning. CT-4 User’s Guide Page 32 Document Num., Rev.

  • Page 33: Example Setup Using A Spectrum Analyzer

    Typical Spectrum Analyzers The screens shown in this section represent the view a typical Spectrum Analyzer with a minimum resolution bandwidth of 10 kHz would provide when setting up the CT-4. We recommend using an Advanced Spectrum Analyzer for the initial setup of the CT-4.

  • Page 34: Advanced Spectrum Analyzers

    Advanced Spectrum Analyzers With an advanced spectrum analyzer, the Low Resolution Mode (Setup Mode) of the CT-4 should be turned OFF. The screen shown below represents the display of an Advanced Spectrum Analyzer with the following recommended settings: •...

  • Page 35: Example Ct-4 Setup Scenarios

    2. Use the lowest Average Total Power of the two 2. Use the lowest Video Level of the two adjacent adjacent carriers to Calculate the Target CT-4 carriers to Calculate the Target CT-4 Low Band High Band Carrier Level. Carrier Level.

  • Page 36: Mixed (Low Band) & All Digital (High Band) Adjacent Carriers

    Target CT-4 Level = - 30 dB Target CT-4 Level = - 30 dB Target CT-4 Level = _____ - 30 dB Target CT-4 Level = _____ - 30 dB Target CT-4 Level = _____ dBmV Target CT-4 Level = _____ dBmV 3.
  • Page 37 Target CT-4 Level = - 30 dB Target CT-4 Level = - 30 dB Target CT-4 Level = _____ - 30 dB Target CT-4 Level = _____ - 30 dB Target CT-4 Level = _____ dBmV Target CT-4 Level = _____ dBmV 3.

  • Page 38: All Digital (Low Band) & All Digital (High Band) Adjacent Carriers

    Target CT-4 Level = - 30 dB Target CT-4 Level = - 30 dB Target CT-4 Level = _____ - 30 dB Target CT-4 Level = _____ - 30 dB Target CT-4 Level = _____ dBmV Target CT-4 Level = _____ dBmV 3.

  • Page 39: Mixed Digital (Low & High Band) Adjacent Carriers

    Target CT-4 Level = - 30 dB Target CT-4 Level = - 30 dB Target CT-4 Level = _____ - 30 dB Target CT-4 Level = _____ - 30 dB Target CT-4 Level = _____ dBmV Target CT-4 Level = _____ dBmV 3.

  • Page 40: Single Adjacent Carriers

    Target CT-4 Level = - 30 dB Target CT-4 Level = - 30 dB Target CT-4 Level = _____ - 30 dB Target CT-4 Level = _____ - 30 dB Target CT-4 Level = _____ dBmV Target CT-4 Level = _____ dBmV 3.

  • Page 41: No Adjacent Carriers

    Target CT-4 Level = - 30 dB Target CT-4 Level = - 30 dB Target CT-4 Level = _____ - 30 dB Target CT-4 Level = _____ - 30 dB Target CT-4 Level = _____ dBmV Target CT-4 Level = _____ dBmV 3.

  • Page 42: Tech Setup

    The CT-3 TECH SETUP menu is used to set whether users are allowed to enable/disable the tags from the CT-4 web interface. However, the CT-4 web interface is not available at this time. Once it becomes available the settings within this menu will apply to anyone who logs in with a TECH level account.

  • Page 43: Ethernet Setup

    The ETHERNET STATUS menu is used to adjust the Ethernet settings of the CT-4. The Ethernet settings of the CT-4 are used to provide access the CT-4 web interface. However, the CT-4 web interface is not available at this time. Once it becomes available, the settings within this menu will allow the CT-4 to be accessible via a network connection.

  • Page 44: Ct Security Setup

    CT Security Setup The CT-3 SECURITY menu is used to reset the username and password of the TECH and ADMIN user accounts for the CT-4 web interface. However, the CT-4 web interface is not available at this time. Perform the following steps to reset the user passwords of the CT-4: 1.

  • Page 45: Chapter 5 Appendix

    3 Hz Tag Depth of 0.0 to 3.0 dB Modulation Input Return Loss > 15 db from 100 to 160 MHz Output Return > 13 db from 100 to 160 MHz Loss CT-4 User’s Guide May 2018 Document Num., Rev. 5 Page 45...

  • Page 46: Operation Mode Specifications

    Adjustable in 3.125 kHz Steps Carrier Output 40.00 to 60.00 dBmV, ±2 dB Level Spurious Outputs -60 dBc Minimum Output Return > 13 db from 100 to 160 MHz Loss CT-4 User’s Guide Page 46 Document Num., Rev. 5 May 2018...

  • Page 47: Operation Mode Specifications

    CT-4 Operation Mode Specifications Compatibility Seeker D and Seeker D Lite Leakage Detectors Carrier Type Proprietary Dual CW for Low & High Bands Tag Signatures 8 available carrier spacings Low Band: 135–139 MHz Carrier Frequency High Band: 610.5 –615 MHz Adjustable in 12.5 kHz Steps...

  • Page 48: Error Codes

    CT-4 Error Codes Error Description Solution Return the device to the factory for Factory calibration is not valid repair. Set up the parameters on the front User parameters are not valid panel. If the error persists, return the device to the factory for repair.

  • Page 49: Limited Warranty

    Limited Warranty For the latest warranty information, visit https://www.viavisolutions.com/literature/viavi-solutions-inc-general-terms-en.pdf CT-4 User’s Guide May 2018 Document Num., Rev. 5 Page 49...
  • Page 50 Rev. 5, May 2018 English VIAVI Solutions North America: 1.844.GO VIAVI / 1.844.468.4284 Latin America +52 55 5543 6644 EMEA +49 7121 862273 APAC +1 512 201 6534 All Other Regions: viavisolutions.com/contacts email TAC@viavisolutions.com...

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