ETM ETM770-4 Manual de usuario

ETM770 Users Manual 201709RV01

ETM770-4 Signal Strength Meter

User Manual

ETM770-4 4G/3G HSPA Signal Strength Meter

Features:

◩ LCD Display with backlight

◩ Scan for signal strength

◩ Identify network operators

◩ SMA antenna connectors (FME adapter included)

◩ Internal rechargeable battery pack

◩ Mini USB connector for programming and recharging

◩ Send TCP/IP data packages to a server to confirm connectivity

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Etm770 Users Manual 201709rv01

Contents

Explanatory List of Network Abbreviations ....................................................................................... 3

Introduction ....................................................................................................................................... 4

Nomenclature ................................................................................................................................ 4

Overview. ...................................................................................................................................... 4

Applications ................................................................................................................................... 4

Specifications.................................................................................................................................... 4

Charging Temperature Limitation ..................................................................................................... 4

Understanding Unit Operation Issues ............................................................................................... 5

Limitations - Selecting a Net Operator then Scanning for Signal .................................................. 5

Understanding Scanned Signal Data ............................................................................................ 5

Key3GSignalStrengthParameters...........................................................................................................5

Key4GSignalStrengthParameters...........................................................................................................5

Interfaces .......................................................................................................................................... 6

Min USB ........................................................................................................................................ 6

SMA Antenna Connectors............................................................................................................. 6

SIM Holder .................................................................................................................................... 6

Initial Setup ....................................................................................................................................... 6

Starting the Unit............................................................................................................................. 7

Main Menu – 1. Scan Signal ............................................................................................................. 7

Scanning for Signal Strength......................................................................................................... 7

Last Scan ...................................................................................................................................... 8

Neighbour Cells............................................................................................................................. 8

Main Menu - 2. ISP Connect............................................................................................................. 8

Username and Password .............................................................................................................. 8

Set APN (Access Point Name)...................................................................................................... 8

Set IP Address .............................................................................................................................. 9

Checking IP Connectivity .............................................................................................................. 9

Main Menu - 3. Network Operators................................................................................................. 10

Scanning a Different Network...................................................................................................... 10

Main Menu – 4. Status .................................................................................................................... 11

System Details ............................................................................................................................ 11

Network ....................................................................................................................................... 12

Settings ....................................................................................................................................... 12

Main Menu – 5. Services ................................................................................................................ 13

Radio Band Setting ..................................................................................................................... 13

Shutdown Device ........................................................................................................................ 13

Restart Device............................................................................................................................. 14

Using a Terminal Window to Configure the Unit ............................................................................. 14

SomeCommonUsefulCommandstoUsewithTerminalWindow.........................................................15

Troubleshooting .............................................................................................................................. 16

Error Net Login on Startup .......................................................................................................... 16

ISP Connect – Errors .................................................................................................................. 16

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Etm770 Users Manual 201709rv01

Explanatory List of Network Abbreviations

Abbreviation Full Name Explanation

CHANN Channel Shows the ARFCN (Absolute

Frequency Channel Number) of the

Radio Band Frequency

PSC Primary Synchronization Code Describes start and stop time for the

time slot that the device has been

allocated

PLMN Public Land Mobile Network A network that is established and

operated by an administration or by

a recognized operating agency

(ROA) for the specific purpose of

providing land mobile

telecommunications services to the

public

MCC Mobile Country Code The first part of the PLMN code

MNC Mobile Network Code The second part of the PLMN code

LAC Local Area Code Identifies a Location Area

CELL Cell ID Cell identification number

APN Access Point Name Refer to Network Operator

LIP Local IP IP Address allocated by Network

Operator

RSSI Received Signal Strength Indicator According to 3GPP TS 27.007 RSSI

is not applicable to 3G networks.

Consider additional information, in

particular the values for RSCP,

EC/n0,SQual and SRxLev RX level.

CSQ Signal Quality Measure Relates to RSSI as follows

0 -113 dBm or less

1 -111 dBm

2 to 30 -109 to -53 dBm

31 -51 dBm or greater

99 not known or not detectable

EC/n0 Carrier to noise ratio in dB Carrier to noise ratio in dB =

measured Ec/Io value in dB. Please

refer to 3GPP 25.133, section

9.1.2.3, Table 9.9 for details on the

mapping from EC/n0 to EC/Io.

RSRP Reference Signal Received Power see 3GPP 36.214 Section 5.1.1.

RSRQ Reference Signal Received Quality see 3GPP 36.214 Section 5.1.2.

RSCP Received Signal Code Power in dBm

SQual Quality value for base station selection in

see 3GPP 25.304

SRxLev RX level value for base station selection

in dB

see 3GPP 25.304

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Caution

Risk of explosion if battery is

replaced by an incorrect type.

Dispose of used batteries

appropriately.

Introduction

Nomenclature

ETM770-4 incorporates the Cinterion ELS61-AUS wireless module.

Overview.

The ETM770-4 is designed for measuring the signal strength of 4G and 3G cellular operators at a

particular location. The unit can detect the frequency bands indicated on the following page,

around the world there are more 3G and 4G frequencies used than the ETM770-4 can detect -

make sure that the unit is suitable for the signal being scanned.

Terminal Nomenclature/History

Model Comment Module Installed

ETM770-1 This manual does not cover

operation of the previous

models, contact ETM for an

appropriate manual

TC63i

ETM770-2 EU3-P

ETM770-3 PH8-P

ETM770-4 First Release ELS61-AUS

Applications

The product is typically used to:

◩ Check signal availability for a potential installation

◩ Determine the best operator for a particular location

◩ Assess antenna positioning and suitability for a particular installation

Specifications

Feature ETM770-4

4G LTE Frequency Bands Bands 3, 5, 8, 28 (1800, 850, 900, 700 MHz)

3G UMTS/HSDPA Frequency Bands Bands 1, 5, 8 (WCDMA/FDD 2100, 850, 900 MHz)

Screen LCD Backlit

Battery 1020 mAhr 3.7V Rechargeable LIP

Battery Life 2 days operation in typical use

SIM Voltage 1.8V & 3V

Supply Voltage 5V via Mini USB

Power Consumption 600mA (recharging)

Weight 130g

Operating Temperature Range -20oC to 40oC

Charging Temperature Limitation

In the battery charge condition of the ETM770 (when the mini – USB

connector is used), the maximum operating ambient temperature is

limited to 40˚C.

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Etm770 Users Manual 201709rv01

Understanding Unit Operation Issues

Key operational features of the unit may limited by the SIM/Network being used, these limitations

need to be understood to ensure you get the most out of the unit.

Limitations - Selecting a Net Operator then Scanning for Signal

Required Operation Issue Limitation/cause

I want to scan a 3G or 4G

network/frequency on a network

different to the SIM provider

After selecting the particular net

operator you get an error and are

unable to scan the signal

The SIM/Network will not allow you to register and as a

result scanning may not work successfully, this is dependent

on roaming agreements between the networks.

I want to scan the home

networks 4G signal

After selecting the particular net

operator you get an error and are

unable to scan the signal

The APN may not be set correctly, refer Set APN (Access

Point Name)

The username and password may also have to be set for 4G

registration, this is usually the case for VPN SIMs

See all available Net Operators You cannot see an expected Net

Operator in the found Net

Operators list

There is no network/signal in your location

You have excluded a particular radio band, refer Radio Band

Understanding Scanned Signal Data

To check signal, particularly in areas of poor signal, it may be necessary to scan for an extended

period of time as signal can vary significantly over time and it is the minimum values that are

important for reliable cellular performance.

It can also be important to consider the number of neighbour cells available as these can provide

backup in the event of a particular cell becoming unavailable.

Key 3G Signal Strength Parameters

For 3G cellular connections, RSSI (CSQ) and EC/IO are the key parameters to review in deciding

whether a signal is adequate, note that additional parameters may also be relevant and are displayed

by the signal strength meter under the Status, Network Menu.

CSQ Signal Strength EC/n0 Signal Quality

Signal<10 Weak -11≤Signal Poor to Fair

10≤Signal<15 Low -6≤Signal<-11 Good

15≤Signal<20 Medium -6<Signal Excellent

20≤Signal<25 High

25≤Signal Strong

Key 4G Signal Strength Parameters

For 4G cellular connections, RSRP and RSRQ are the key parameters to review in deciding

whether a signal is adequate, note that additional parameters may also be relevant and are displayed

by the signal strength meter under the Status, Network Menu.

RSRP Signal Strength RSRQ Signal Quality

Signal<-120 Weak -12≤Signal Poor to Fair

-120≤Signal<-105 Low -12<Signal≤-9 Good

-105≤Signal<-90 Medium -9<Signal Excellent

-90≤Signal High

Note

Registration to 4G networks can take longer than normally expected and depends on the network/SIM. When changing some

settings in the unit you may be asking the device to disconnect then search/register to a different service and this process

may be delayed. After making a menu selection you may need to wait for up to 40 seconds for a selection to be completed

and the menu system to be active again.

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Etm770 Users Manual 201709rv01

28.0

Mini USB

SIM Holder

Slide catch back

before inserting SIM,

lock into position

once SIM is inserted

70.0

115.0

Primary/Main

Antenna Connector

SMA Jack

Secondary

Antenna Connector

SMA Jack

On/Off Button

To turn off hold for > 3s

Note unit may not turn off

when actively performing

a task, such as signal

scanning, return to Main

Menu to then turn off the unit

Scroll Up/Scroll Down Buttons

Move up or down the menu list

OK Button

Confirm/Make Selection

Interfaces

Min USB

The Mini USB located on the top left of the unit

is used both for programming the unit using a

terminal program as well as for charging the

unit.

SMA Antenna Connectors

Two SMA Jack antenna connectors are located

top centre of the unit. A suitable antenna(s) can

be connected directly or via the use of an

adaptor if required. FME adaptor included with

unit.

Note it is recommended that scanning be

performed using the antennas that are intended

to be deployed, in the location/mounting

arrangement intended. Results can vary

significantly between antennas and with

differing location and mounting arrangement.

SIM Holder

The units SIM holder is located top right of the unit. Please take care to ensure the unit is off when

the SIM is removed or inserted, also ensure that the SIM is inserted correctly.

Initial Setup

Item Default Setting Notes

Radio Band Selection All bands for Both 3G and 4G This can be modified, refer Radio Band

APN The unit will have a default list of 5

APN's entered:

telstra.internet

telstra.extranet

yesinternet

internet

live.vodafone.com

It is likely you may need to be able to select a different

APN, refer Set APN (Access Point Name)

Username and password "username"

"password"

It is likely you may need to be able to select a different

username and password, refer Username and

Password

SIM Pin This is not set If required to be set contact ETM

IP addresses and ports for ping

test

These are not set If required to be set refer Checking IP Connectivity

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Etm770 Users Manual 201709rv01

Net Operator

Network details

Signal Strength RSSI dBm and CSQ value between 1 and 31 plus Average

CSQ during current scan

Signal strength bar

Min and Max CSQ during current scan

RSRP and RSRQ.(4G Scan)..or...EC/n0 and RSCP (3G Scan)

Section scrolls through additional information such as LAC, Cell ID, PLMN,

Channel ID and number of neighbour cells

Battery Indicator, indicates charging

Signal Strength

Network 3G or 4G

Frequency

indicates USB connected, R indicates home network

indicates ISP connected

Section scrolls through additional information such as LAC, Cell ID, PLMN,

Channel ID and number of neighbour cells

Starting the Unit

After ensuring the unit is off, insert a suitable SIM card and connect your antenna of choice. We

recommend that the SIM PIN (if applicable) is deactivated before inserting in the unit.

If the unit has sufficient charge then depressing the On/Off button will start the unit.

After the unit has successfully started the following screens should appear.

Main Menu – 1. Scan Signal

Scanning for Signal Strength

Use the UP and DOWN buttons to select 1. Scan Signal and then press ENTER.

To start a new scan press any button and you will return to the main menu then select 1. Scan

Signal again. To scan another network or frequency band refer Scanning a Different Network or

Radio Band .

Page 8 of

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Etm770 Users Manual 201709rv01

ETSAPN=x,APN

Where x = the position in the list

APN = The APN for that position in the list

Example: ETSAPN=1,telstra.internet

ETSAPN=2,telstra.extranet

Set IP Address

The following commands should be used to set the IP-Address for connection to a Server, these

commands can be sent using a terminal window or by SMS to the unit.

ET-IP1=” Remote Server IP-Address” : “Remote Port” <CR>

ET-IP2=” Remote Server IP-Address” : “Remote Port” <CR>

Example: ET-IP1=144.132.166.189:2049<CR>

ET-IP2=144.132.166.189:2049<CR>

Checking IP Connectivity

Use the UP and DOWN buttons to select 2. ISP Connect and press ENTER.

Open ISP confirms that the SIM and ISP login details are correct and that a successful logon

occurs. Possible errors may come from incorrect authentication details, incorrectly configured SIM

or no signal.

Ping confirms that once logged on to the ISP a remote server can be reached.

Once ISP testing is finished use the UP and DOWN buttons to scroll to Return->Main Menu and

press ENTER.

Both IP1 and IP2 must

be set.

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Etm770 Users Manual 201709rv01

Main Menu - 3. Network Operators

Signal strength and cell information for available networks can be scanned from a SIM of any valid

network operator. Note that registration on the network and ISP connectivity testing (see above) is

only applicable for the network which provided the SIM.

Scanning a Different Network

To scan the signal from a different network, at the Main Menu use the UP and DOWN buttons to

select 3. Net Operators.

Then once the screen below is shown use the UP and DOWN buttons to select the desired

Network to be scanned.

Once the desired network is selected by pressing ENTER, the unit will wait for a response from the

network and then return to the main menu.

Once back at the main menu 1. Scan Signal can be selected and the signal strength on the new

network scanned as required.

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