Schedule. Presenter & Moderator. Questions
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2 Schedule 2:00 3:00 pm EST ControlCam Presentation Presenter & Moderator Presenter Lauren Kane, VP of Marketing & Customer Engagement Moderator Paige Parker, VP of Sales Questions If at any time during the webinar you have a question please enter your question in the Questions & Answers box on your GoToWebinar panel. You will receive a full list of questions and answers via by Thursday, June 19th.
3 Newsletter For up to date news on ControlCam products, services and events please be sure to sign up for our newsletter. Social Media Please be sure to follow us on these social media outlets
4 At this time we would like to ensure that everyone has adequate audio sound. Please raise your hand (see image on right) to indicate that you have clear and audible sound.
5 ControlCam Why are cable companies required to perform a CLI test? FCC Requirements FCC Filing Online What is CLI? Cumulative leakage Index Types of CLI Testing CLI Testing Scheduling Coordination with Pilots Setting up for a test Performing the test and Collecting Data
6 Results CLI Reports CLI Report Maps CLI Report Delivery CLI Report Notifications Potential Issues Effecting Service Possible Delays Solutions The Future of CLI Testing Digital/LTE Testing Aerial Imagery Customer Engagement Customer Feedback How to Get Help Conclusion
7 ControlCam is pleased to present this webinar for our cable customers We were founded in 1990 and were one of the pioneers of aerial leakage detection for cable TV industry. We own, manage and maintain a fleet of aircraft used to capture aerial information and imagery. We fly year-round nationwide, Canada, Puerto Rico, and Hawaii. 95% of U.S. populated areas flown annually. Maintains a technical team who are available for assistance. Flexible scheduling allows for quick response. With almost 25 years of experience, we are the CLI experts!
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10 The Federal Communications Commission requires all cable operators to perform an annual ground based or aerial measurement CLI test. These tests must show compliance with the specified leakage criteria. The specified leakage criteria for aeronautical CLI tests is defined as having no more than 10% of a cable system with points equal to or greater than 10 uv/m. One test should be performed for each cable system, at least once each calendar year, no more than 12 months between successive tests thereafter. (
11 For an aeronautical CLI test FCC Form 320 (s) should be filed within 45 days of completion of the test. These forms must be filed electronically on the FCC s website. The Federal Communications Commission has set these requirements to ensure there isn t potential interference to aircraft communications and navigation over a cable system s distribution plant. The FCC also requires cable operators to have a periodic, ongoing program to inspect, locate and repair leaks on their systems.
12 This link will take you to the FCC CLI page
13 The FCC website provides a list of Commonly Asked CLI and Form 320 Questions
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15 As you know cable systems use radio frequency (RF) signals over cables to provide their services. Sometimes these signals can leak and cause interference in aeronautical frequencies being used by the cable system. Cumulative Leakage Index (CLI) is a method of assessing possible leakage in a cable system. Interference can potentially obstruct communications of airplane pilots.
16 There are two types of CLI tests (This presentation focuses on aeronautical testing) Ground Based Test: Leaks are located at the source and measured at a distance of 10 to 30 feet. All leaks are entered into a program that creates a theoretical dome of influence above the cable system at 1500 feet. At least 75% of a cable system must be tested when doing a ground based test. Performing these tests can take a significant amount of time and expense depending on the area that needs coverage.
17 There are two types of CLI tests (This presentation focuses on aeronautical testing) Aeronautical Test: Leakage is recorded in a plane flying a grid over the cable system.
18 Aeronautical Test: Planes typically fly at an altitude of 1500 feet and an airspeed of 140 knots when testing. The recordings (or readings) taken from the plane are cumulative and recorded with the longitude and latitude of the plane s location while flying. Readings inside the system border that are less than 10 uv/m are considered in compliance. Readings inside the system border that are equal to or greater than 10 uv/m are considered out of compliance. The number of readings out of compliance can not exceed 10%. Aeronautical tests can cover a large area in a short amount of time.
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20 Scheduling requirements can vary for each cable company (i.e. some companies move their CLI system tests up 1 to 2 weeks prior to the previous year s test, some a month prior and some companies have no preference). If you are not sure of your company s CLI scheduling policy please check with the Division or Corporate CLI Coordinator. Schedules are ed to all contacts on our lists between the 1 st and 15 th of the month before your test (i.e. a July schedule will be sent between June 1 st and June 15 th ). Early communication of the schedule allows time for cable personnel to provide contact changes or to inform ControlCam of any blackout dates or work that may interfere with the scheduled flyover.
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22 ControlCam pilots call local system contacts listed on schedules hours prior to the scheduled flyover. They will arrange to meet with the local system contacts (if needed) and assist with setting up equipment. Pilots will also communicate with local system contacts anytime there is a delay and a flyover needs to be rescheduled. It is important to return a pilot s call as soon as possible to coordinate. Text messaging can be a useful way of communicating with the pilots. If you do not hear from a pilot prior to your test or you have not received a returned call from a pilot you contacted, please call the ControlCam office at
23 Setting up for a flyover consists of the following three parts: Select a test frequency Set up the equipment in the aircraft and calibrate to a known leak Set up the signal generator in the headend
24 Select a Test Frequency Aeronautical frequencies are divided into the following two categories: Navigation and Communication. Navigation frequencies range from 108 MHz to 118 MHz using an offset of 0.05 MHz. Communication frequencies range from 118 MHz to 137 MHz using an offset of MHz. We try to avoid using frequencies from 108 MHz to 112 MHz since this range is where ILS approach frequencies are set but if we use those frequencies 108 MHz to 118 MHz* we must use offset of MHz.
25 Select a Test Frequency When ControlCam performs a flyover with a signal insertion the FCC does not allow us to transmit a signal that can be used as an aviation navigation or communication frequency, therefore we must use offsets. 108 MHz to 118 MHz* use offset of MHz 118 MHz* to 137 MHz use an offset of MHz (*118 requires a offset or offset) Channel 16 or 17 We will use a frequency from MHz to 140 MHz to try to stay above all active aviation communications frequencies in the area. Channel A-1 or Channel A-2 We will use a frequency from MHz to MHz after we confirm all of the active aviation navigation frequencies in the area. We try to use a frequency that is at least 0.5 MHz away from any active navigation frequencies.
26 Select a Test Frequency Insert between channels We can try to insert between channels 16 and 17 or channels A-1 and A-2. This will cause some interference on the upper video channel which we have the cable system personnel decide if the level of interference is acceptable. The frequency is set at MHz between A-1 and A-2 or MHz between channels 16 and 17 to start. The level is then increased to one db above the systems adjacent video levels. if this causes interference on the lower channel's audio the level is decreased until the interference is removed. Next the level and the frequency are increased until an acceptable median is obtained. The level can not be set more than 2 db below the system video levels.
27 Select a Test Frequency If none of these work than any frequency between MHz and MHz can be used after first confirming all of the active aviation communication frequencies in the area. We can tune into an active video frequency transmitted by the system as long as negative traps are not being used by the system for that channel. Note: When inserting the signal we will be causing interference on that channel. The channel is usually taken off-line for the duration of the test. We cannot test on a channel which is using negative traps in the system.
28 Calibrating to a Known Leak Equipment installed in the aircraft for the CLI test must be calibrated using a known leak. The known leak is generated by a signal generator at the predetermined test frequency with an output level of -84dBm. The signal generator is connected to a calibration element which is suspended 3 feet below the receiver antenna. This creates a leak equivalent to feet. The leakage meter and RF filter are tuned to the frequency and adjusted to receive the maximum reading. The meter may by adjusted as necessary to be equivalent to a leak of feet.
29 Setting Up a Signal Generator for a CLI Flyover The test signal is set to a level 1dB above the adjacent system video levels for a standard test and 7dB above the adjacent system video levels for an enhanced test unless otherwise noted on the schedule. The procedure to setup the signal generator for testing is as follows: 1. Determine Test Signal Level. Take all level readings from the same test point. Use a spectrum analyzer or signal level meter to read the adjacent video levels of the channel used for testing. Add 10dB if the channel is digital. Write these readings in the log and determine the test level using the method below: If the difference is less than 1dB the test level will be set 1dB above the higher of the two system levels If the difference is 1dB to 2dB the levels are averaged and the test level is set 1dB above the average levels If the difference is more than 2dB one of the channels is high or low and the next adjacent channels should be checked and step 1 or 2 used 2. Connect Generator to system The RF OUTPUT of the generator can be connected to an open port in the combining network or it can be barreled to the RF OUT cable from the modulator of the test channel.
30 3. Turn Generator ON Press the POWER ON/OFF button to Turn On the Generator and check the screen with image to the right. *Note: The Frequency and the Level may be different. **Note: The SEQ and REG do not matter. ***Note: DO NOT TOUCH THE RED BUTTONS 4. Set Frequency if needed Press the FREQUENCY button ( 1 ) Enter the FREQUENCY using the GREEN BUTTONS Press the MHz button ( 4 ) 5. Set FM Deviation if needed Press the FM button ( 3 ) Enter 16 using the GREEN BUTTONS Press the khz button ( 5 ) Instructions are attached to the generator
31 6. Set Modulation if needed Press the INT 1kHz button ( 8 ), modulation type will change to 1kHz Press the MOD ON/OFF button ( 7 ), OFF next to 1kHz will disappear 7. Set Test Signal Level Take all level readings from the same test point. When checking the generator level be aware that we may be using a nonstandard frequency so a signal level meter which is tuned to a channel will not read the test level correctly. Tune the signal level meter to the test frequency or tune the generator to the channel video frequency, set the test level and set the generator back to the test frequency. Press the AMPLITUDE button ( 2 ) and the dbuv button ( 6 ) to set the output unit to dbuv Press the RF ON/OFF button ( 9 ), RF OFF on the screen will disappear Check the test LEVEL on the meter and adjust the test LEVEL using knob ( 10 )
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34 All flyovers are performed at an altitude of approximately 1500 feet. Flyovers can be performed at any time of day or night. If a night test is requested, ControlCam will verify that the location and terrain will be safe for the crew to fly at night. All passes are flown at ¾ - 1 mile wide and in one direction, either North and South or East and West. Data is recorded on a computer every second. It is complied and a score is generated at the main office.
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36 ControlCam Aeronautical CLI Test Reports ControlCam CLI reports provide a detailed overview of test procedures and results. These reports can be used to assist in filing the FCC Form 320 electronically. It is important to remember that every cable company has different procedures for filing the FCC Form 320. Many companies have Corporate/Division level CLI Coordinators who are responsible for filing the Form 320. Please check your company policy or contact ControlCam if you have questions.
37 Cover Page The first page of a CLI report provides: Company Name System Tested Date of Test
38 Summary This page provides a summary of the test, as well as a brief overview of how to use the report Number of Readings Taken Total number of points out of compliance Score Pass/Fail Results
39 Procedure The Procedure pages show all formulas and values used to calculate leakage percentages Date, Time and Frequency of Test Formulas and Values Used
40 Procedure (Page 2) The Procedure pages show all formulas and values used to calculate leakage percentages Formulas and Values Used
41 Probability Graph The Probability Graph is required by the FCC. It shows the number of readings at a particular leakage level.
42 Relative High Readings The Relative High Readings page provides a list of high points shown on the maps Number of Readings Taken Reference Number uv/m Reading Location (Lat./Long. Coordinates)
43 List of Equipment This page provides a listing of equipment used in the CLI test Number of Readings Taken Equipment Calibration Frequency (if applicable)
44 Number of Readings Taken Test Configuration The Test Configuration page demonstrates how each piece of equipment is used in the test.
45 Maps are included at the end of the aeronautical CLI Report. An overview map shows the entire system with the flight routs and leakage locations.
46 If a system is large the following 8 pages after the overview map will be zoomed in breakout maps to help identify leakage location.
47 If a system is large the following 8 pages after the overview map will be zoomed in breakout maps to help identify leakage location.
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49 ControlCam s online report portal allows users to sign up for daily, weekly, bi-weekly, or monthly notifications. These notifications provide a list of reports available for download and a direct link to download them. Please note that corporate, division and system supervisors have their own policy for notifications. Please check with your supervisor or ControlCam before attempting to sign up for the notification s.
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51 Weather If there is bad weather (i.e. snow storms, tornadoes, thunderstorms) at the time of a test it may be moved to prevent unsafe flying conditions for pilots and aircraft Scheduled aircraft maintenance This includes oil changes and airworthiness directives (AD s) AD s are mandates by the FAA to check an airplane s condition at specified hours flown Your test schedule should never be affected by scheduled maintenance Unscheduled plane maintenance If a plane encounters mechanical issues (i.e. fuel or oil leaks, alternator, landing gear issues, and emergency landings) it may cause delays of a system test
52 Blackout Dates Blackout dates mandated by the cable companies can prevent a CLI test from happening on the suggested test date. Construction Issues Scheduled and emergency construction work at the cable company may interfere with a system test causing a delay. It is important to note that delays for one system on the schedule (in one part of the country) can cause delays for other systems (in other parts of the country).
53 Revised Scheduling & Coordination with ControlCam Team ControlCam wants to work with you to ensure your scheduled system test is completed on time. We will work to complete tests as soon as possible when there is a delay. If there is a delay the ControlCam team will notify local and corporate contacts (from the schedule) to inform them of the delay and the next available test date. Early notification of black out dates and construction To ensure there are as few delays as possible please let the ControlCam team know of any scheduled work or blackout dates that you know. If these dates are communicated ControlCam can work to schedule your system test around these dates and ensure it is completed before your FCC due date.
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55 Cable companies are rapidly transitioning to Digital systems. All Digital (QAM Based) Line-Up Leakage Measurement at 700/800MHz (UMTS Bands) Cumulative Leakage Index (CLI) FCC and IC Compliancy Geo-Location Pinpointing of Leakage Sources First commercial use of new system was the Rogers Communication system tests completed in October 2013.
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57 Digital vs. Analog The existing analog system uses a tuned receiver listening intermittently for a specific narrow band market tone that has been injected into the cable system. Our new digital system makes high-speed recordings of up to 110MHz continuously, and can tune from 9KHz to 4GHz. Antennas constrain the overall spectrum to 100MHz to 4000MHz. By managing the flight plan versus the data acquisition times, capturing the entire MHz bands plus 700MHz 1000MHz can be utilized to fully characterize leakage regardless of the band that is emitted by a cable system.
58 Digital vs. Analog The new system does not require insertion of a signal marker, thus reducing scheduling issues and disruption of customer service. The system records all signals, regardless of modulation type or bandwidth. This allows many different signals to be used to correlate and crossreference. Post-processing of the signals expands the types of processing that can be done. The methods used for triangulation of emission source locations also greatly improves location accuracy and increases accuracy of the existing system. The cost of this new equipment is significantly higher than the analog testing equipment, therefore digital tests should only be scheduled when an analog test will not meet the needs of the cable company.
59 Overlap of Cable Systems The new system records the spectrum, not decode radio signals in the classic sense. Signal demodulating and decoding is done as a post-recording process which is far more powerful and can produce more extensive signal processing than static live measurement systems. The spectrum is recorded and preserved with full fidelity. The recordings can be replayed into vector signal analyzers, modems, receivers, set top boxes and decode the signals and analyze their contents. Recordings can be replayed and reanalyzed limitless times, provided the base digital recordings are kept. Analyzed signals can be matched in a variety of ways based on their content, RF patterns, signal formats, and spectral organization.
60 ControlCam can now overlay leakage results onto high resolution aerial imagery. This will allow cable companies a clearer view of leakage locations. Aerial imagery coverage is currently limited but as we expand our aerial coverage we expect this to be a valuable aid in identifying leakages.
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62 ControlCam is dedicated to our customers and we welcome positive or negative feedback. As part of our customer engagement initiative we are conducting quarterly surveys to follow up with customers. If you have feedback that you would like to share we encourage you to do so one of the following ways: Contact Lauren Kane, VP of Marketing & Customer Engagement x5512 Complete a customer survey online
63 Lauren Kane, VP of Marketing & Customer Engagement x 5512 laurenkane@controlcam.com Questions about scheduling or setting up for a test James Hawks, Scheduling x 5515 jameshawks@controlcam.com Questions about aircraft or pilots Wayne Royal, Chief Pilot x 5518 wayneroyal@controlcam.com Questions about reports Richard Willis, Reports richardwillis@controlcam.com Questions/Comments about customer service, accessing your online account
64 1 For general questions and/or comments or for after hours help please contact
65 Thank you Thank you for attending ControlCam s webinar on Cumulative Leakage Index (CLI) 101. If you have any questions please Lauren Kane at LaurenKane@ControlCam.com or call Webinar Presentation All attendees will receive a follow-up within 24 hours after the webinar has ended. This will have instructions for obtaining a copy of this presentation. A full list of questions and answers from this webinar will be sent via by Thursday, June 19th. Survey
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