Arcom QAM Snare Snoop Manuale utente



QAM Snare Snoop User

Manual

QS-Snoop-v2.0

2/21/2018

This document details the functions and operation of the QAM Snare Snoop leakage

detector

Table of Contents

Overview .............................................................................................................. 5

Screen Navigation ................................................................................................. 6

Settings ................................................................................................................ 6

General................................................................................................................. 7

Information .......................................................................................................7

Sound ...............................................................................................................7

Auto start..........................................................................................................8

Auto Detect Profile ............................................................................................8

Standard ...........................................................................................................9

Exit ...................................................................................................................9

Connection ........................................................................................................... 9

QS Server ..........................................................................................................9

Wi-Fi profile....................................................................................................10

Walk mode -vs-Truck mode............................................................................10

Detector Settings ................................................................................................ 11

Signal Mode........................................................................................................ 11

Channel.............................................................................................................. 11

Channel - Analog detection ................................................................................ 12

Analog channel ...............................................................................................12

Tag confirmation on/off..................................................................................12

Tag frequency .................................................................................................13

Channel - QAM detection.................................................................................... 13

QAM channel...................................................................................................13

Channel – OFDM detection .................................................................................. 13

OFDM channel.................................................................................................14

OFDM detection continuous pilot harmonics ...................................................14

Error CP1 or CP2 .............................................................................................15

Pilot/QAM mode ................................................................................................. 15

Leakage Detector Pilot/QAM mode Channel and Frequency Selection ..............15

Leakage Detector Pilot/QAM mode Code # ......................................................15

Shielding Test mode ........................................................................................... 16

Shielding Test ON/OFF ....................................................................................17

Shielding Test Channels ..................................................................................17

Shielding Test Code ........................................................................................17

Pilot Level .......................................................................................................18

Next Band .......................................................................................................18

Leak Alarms........................................................................................................ 18

Signal alarms ..................................................................................................19

SE Test alarms.................................................................................................19

Calibration.......................................................................................................... 19

Detector Mode .................................................................................................... 20

Detector Mode – when configured for QAM detection........................................... 20

Detection channel displayed on screen............................................................21

Indication of leaks detected at bands other than displayed..............................21

Switch to different band ..................................................................................21

Fix detection to one frequency ........................................................................21

Leakage Display Level Indicator .......................................................................22

Detector Mode – Analog...................................................................................... 22

Detector Mode – OFDM ....................................................................................... 23

Detector Mode – Pilot/QAM ................................................................................. 23

Detector Mode – Shielding Test ........................................................................... 23

Screen navigation in Shielding Test mode........................................................24

Shielding effectiveness indication....................................................................24

Noise Floor Level Indication................................................................................. 25

Auto shutdown counter....................................................................................... 25

Other battery saving features .............................................................................. 25

GPS status indicator ............................................................................................ 25

Error Messages and Troubleshooting................................................................... 27

No GPS lock.....................................................................................................27

No Wi-Fi connection........................................................................................27

No Data...........................................................................................................28

No response from Server .................................................................................28

Headend Signal Processor offline.....................................................................28

No GPS at Headend Signal Processor ...............................................................29

Setup correct QAM channels............................................................................29

Unable to connect to Q-browser .....................................................................29

Changes made in Q-browser are not saved in detector....................................30

Shut Down.......................................................................................................... 30

Antennas ............................................................................................................ 30

GPS antenna....................................................................................................30

RF walk mode antenna ....................................................................................30

Wi-Fi antenna..................................................................................................31

Frequency Setup of QAM Snare Pilot transmitter .................................................. 31

Turning the Pilot transmitter on ......................................................................32

Battery charging ................................................................................................. 32

Patents ............................................................................................................... 32

Overview

The QAM Snare Snoop is designed with the

fulfillment technician in mind for troubleshooting

within the home or at the drop. It is a multi-

modulation format, multi-channel detector that is

extremely flexible for the user. It will operate in

QAM, Analog, Pilot/QAM, OFDM and Shielding Test

detector modes. The device does not provide the

ability to record drive-outs, and does not report

detected leaks to the QAM Snare server database.

However, when the Snoop Auto Detection profile is

configured, the Snoop Time and GPS coordinates are

captured at the server to log activity each time the

detector is activated.

When not being used, it is stored in its cradle, where

is receives power as well as the GPS from the roof

antenna which attaches to the cradle. It is designed

to remain powered while cradled such that it

establishes GPS lock and is always ready to be used

without wait time for the technician. When the

technician needs to use the detector, it is pulled

from the cradle and the technician can freely move

to the leak source. The Snoop is a Wi-Fi device that

requires Wi-Fi connectivity when used in the QAM

detector mode. When used in Analog detector,

Pilot/QAM detector, Shielding Test detector and

OFDM detector modes it does not require Wi-Fi

connectivity nor does it require GPS lock.

The Snoop Shielding Test detector mode is intended to be used in conjunction with

the QAM Snare Pilot Transmitter, to quickly troubleshoot locations in the home and

MDU’s where poor shielding effectiveness results in forward ingress issues related to

close proximity LTE transmitters. Others have referred to this testing technique as

‘Pressure Testing’.

The device contains no maps and provides the user with no feedback as to the

flagged leak location. If it is desired to utilize this product as a find and fix tool at leak

locations previously identified by other QAM Snare devices having drive-out capability,

as a time saver it is recommended to use the QAM Snare Web Client on a mobile device

to have visibility to the GPS calculated flagged leak location which provides an accurate

starting point for the final search. This process is much more effective than blindly

walking around, but marginally more time consuming as compared to the Navigator

Plus device which contain maps integrated within the device display.

Screen Navigation

Upon startup the user can either select Detector mode,

where the unit will function as a leakage detector – or the

user can select Settings, where various changes to the

operating parameters are made.

Screen navigation is performed with a simple three

button scheme. The left and right arrows move the

highlighted cursor to the desired item to be selected, and

the middle circular enter button is used to confirm the

selected menu item. The circular middle button also

functions as a power button and turns the unit on by

pressing and holding for two seconds.

Settings

The Settings button is used to select all the various

configuration options. To access this mode, use the left or

right arrow to highlight the Settings mode and press enter.

Settings related to the QAM Snare server and the Wi-Fi

profiles that the device attaches to MUST be configured

through the Q-browser software program.

General

The General settings button provides for access to several

miscellaneous configuration items which are detailed below.

Information

The Information selection item provide the user with

information on the Device ID (which by default is the MAC

address) and Technician ID that was assigned to the unit

through Q-browser. It provides information on the Firmware

revision, the QAM Snare Server name it is configured to

connect to, and the device MAC address. For security

reasons, the Wi-Fi configuration is not displayed – but this

information is available through the Q-browser.

Sound

The Sound button allows the user to turn the audio alarm

and button feedback on or off. Naviagate to Sound and

press enter, then use the right or left arrow to select on or

off, then press enter to confirm the selection. The threshold

setting for high and low leak alarms is configured in the Leak

alarms menu item, and the sound off setting configured here

will override the Leak alarm setting.

Auto start

The Auto Start/Stop setting allows the unit to turn on and

establish GPS lock automatically when power is applied, as

when the vehicle is started. It will NOT automatically enter

detector mode, as it is not intended to detect leaks while

cradled. This setting also controls an Auto Off counter

feature, which powers the device down when power is

disconnected, as the vehicle is turned off.

Auto Detect Profile

The Auto Detect Profile turns on and off the ability to

automatically switch between detection profile (Analog, QAM,

Pilot/QAM, and OFDM) based on GPS coordinates. Different

sections of the cable network can have different channel

lineups and can utilize different modulation format, or can

be in R-PHY node areas. Since the detection schema can be

different in different areas, the Auto Detection Profile feature provides a means to for

the detector to automatically switch to the correct detection profile without user

involvement. The QAM Snare Server communicates with the detector and based upon

its GPS location tells it which mode it should be in. Additionally, when Auto Detection

Profile is ON, and Wi-Fi & QS Server credentials have been entered, the Snoop will

connect to a selected server to send GPS Time and coordinates to the server. This is

used to log Snoop usage activity only, and no leakage data is recorded. “GPS SYNC” is

required when Auto Detect Profile is turned “ON”.

When Auto Detection Profile is ON, the main menu will indicate this by adding

“AUTO” to the detector menu option.

Standard

This allow to change the television standard between

NTSC, PAL B/G, and PAL D/K so the proper channel listing

can be selected. It is a one-time setup parameter.

Exit

Exit returns to the higher-level menu screen. Select and

press enter.

Connection

The connection menu item is used to select the QAM

Snare server and Wi-Fi devices the Snoop connects to.

Specifics related to these connections must be entered using

the Q-browser software program by connecting a PC to the

device through the USB port on the cradle. Multiple profiles

may be entered, and the connection setting allows the user to select from previously

entered profiles, but it will not allow profiles to be entered directly into the Snoop.

QS Server

The QAM Snare Server which the

device needs to connect to is

selected here. Press enter and the

profiles of servers previously

configured through the Q-browser

are displayed, with the server name

and IP address displayed. To select a different server press next server. If the required

server is not displayed it must be configured through the Q-browser. Multiple server

profiles would only be necessary for the technician that works in areas covering more

than one server.

For clarification, a typical QAM Snare installation will have multiple hubs connected

to one server that covers a broad area. One signal processor hardware device is

required in each hub, and the signal processors communicate with the QAM Snare

server when in QAM Detector mode. The server monitors the GPS location of each

connected field device and coordinates that each device receives signal samples

appropriate for the hub the field device is currently located. This setting has nothing

to do with signal processors as that is managed by the server – just multiple server

addresses.

Wi-Fi profile

The Snoop is a Wi-Fi enabled device that requires

connectivity to operate in QAM detector mode. Profiles that

were previously entered into the device through the Q-

browser are selected through this menu item. Multiple

profiles may be stored in device, and selected when desired.

Walk mode -vs-Truck mode

Other QAM Snare products such as the Navigator Plus utilize a Truck mode and

Walk mode concept for how the device operates when it is cradled and when it is used

by the technician moving around. Since the Snoop is designed to be used only while

moving around outside the vehicle, it inherently operates in Walk mode, as has no

Truck mode capability.

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