ETM770 Signal Strength Meter User Manual

June 17, 2024
etm

ETM770 Signal Strength Meter

ETM770-Signal-Strength-Meter-product

Product Information

Specifications

FAQ

  • Q: How do I insert the SIM card?
    • A: Refer to step 1 in the product usage instructions for detailed instructions on inserting the SIM card.
  • Q: How do I navigate menus?
    • A: Use the up and down buttons to navigate through menus. Press the up button to jump to the next menu and the down button to rotate back to the first row in the current menu.
  • Q: How do I put the device into sleep mode?
    • A: Press and hold the power button for more than 5 seconds to put the device into sleep mode.
  • Q: How do I restart the device?
    • A: Simultaneously press and hold both the up and down buttons for 5 seconds to restart the device.

Product Overview

ETM770-Signal-Strength-Meter-fig-1

Get started

Get started scanning a signal with ETM770

  1. Insert SIM card as shown in picture above.
  2. Insert the charger into the mini USB connector. The battery is charged with 5V.
  3. To turn the device on, press the power button for a minimum of 3 seconds. When the device is turned on and the charger is successfully connected, the screen shall look as follows:ETM770-Signal-Strength-Meter-fig-2
    • The battery is almost fully charged. The network connection is 8/10 bars. We are connected to a 4G network with the frequency 2600 MHz. R means that the device is logged into the home network.
  4. Put on chosen antenna.
  5. The device will automatically scan the network signal once turning it on. If not, find your way to the main menu by pressing the up- button several times. Once pressing “Signal Scanning” you will be redirected to the second menu. Press “Scan Signal”.
  6. Validate your result. The pictures below shows a typical scan for a 2G, 3G and 4G connection.
  7. By pressing the up button, you will jump to next menu. If you press the up button multiple times you will finial enter the main menu.
  8. By pressing the down button multiple times, you will rotate back to the first row in the present menu.
  9. By pressing the power button for more than 5 seconds, the device will go into sleep mode.
  10. By pressing both the up and the down key for 5 second, the device will restart.

2G Mode

  1. Scanned network.
  2. The device is connected to a 2G band. The channel is 54 and the frequency is 900 MHz.
  3. Received Signal Strength Indicator (The signal strength including noise and interference) measured in dBm. The corresponding value is in the parenthesis.
  4. Signal Strength Bar. Measured in dBm.
  5. Signal Quality Min and Max values
  6. Empty space
  7. Signal Quality (Weak, Low, Medium, High or Strong)
  8. Different data rolls in the bottom bar. CH, PLMN, the scanned network and RSSI.

3G Mode

  1. Scanned network.
  2. The device is connected to a 3G band. The channel is 10762 and the frequency is 2100 MHz.
  3. Received Signal Code Power (RSCP) is -72 dBm.
  4. Signal Quality Bar.
  5. Carrier to Noise Ratio (EC/n0) is -3.5 dB.
  6. Signal Quality Bar.
  7. Signal Quality (Weak, Low, Medium, High or Strong)
  8. Different data rolls in the bottom bar. CH, PLMN, the scanned network and RSSI.

4G Mode

  1. Scanned network.
  2. The device is connected to a 4G band. The band is 7 and the frequency is 2600 MHz.
  3. Reference Signal Received Power (the signal strength without noise and interference) measured in dBm. The signal is visualized in the signal bar below the data.
  4. Signal Quality Bar.
  5. Reference Signal Received Quality (how well the signal is coded) measured in dB. The signal is visualized in the signal bar below the data.
  6. Signal Quality Bar.
  7. Signal Quality (Weak, Low, Medium, High or Strong)
  8. Different data rolls in the bottom bar. CH, PLMN, the scanned network and RSSI.

Additional Settings

With ETM770 it is possible to make several additional settings.

Select Radio Band

ETM770-Signal-Strength-Meter-fig-6

  1. Starting at the main menu, press “Signal Scanning”
  2. Press “Select Radio Band”
  3. Select the radio band you want to scan and press OK. By pressing the down button, more alternatives are visible.

Once the radio band is selected you will automatically be directed back to the Signal scan menu.

Select which operator to scan amongst available operators

ETM770-Signal-Strength-Meter-fig-7

  1. Starting at the main menu, press “Signal Scanning”
  2. Press “Select Net Operators”
  3. A list of operators is shown. To see which operators are available please see the numbers on the right of the display. First letter means Operator status and the second letter means Radio Access Technology (RAT). Operator Status: 0: Unknown, 1: Operator available, 2: Current operator 3: Operator forbidden

View Current Network Data

ETM770-Signal-Strength-Meter-fig-8

  1. Starting at the main menu, press “Signal Scanning”

  2. At the Signal Scan menu, select “Current Network Data”

  3. The first view will look similar to the following:

  4. The channel is 2850 and the frequency is 2600 MHz.

  5. E-UTRA frequency band: DownLoad bandwith : UpLoad bandwith

  6. Mobile Country Code (first part of the PLMN code): Mobile Network Code (second part of the PLMN code)

  7. FDD or TDD: Physical Cell ID

  8. Reference Signal Received Power (RSRP) is -91 dBm.

  9. Reference Signal Received Quality (RSRQ) is -7 dB

  10. Tracking Area Code: Global Cell ID

  11. The channel is 2850:  Public Land Mobile Network(PLMN) is 240007

  12. If you press the down arrow once you will get a picture that looks similar to the one below:
    Monitoring Neighbour Cells

  13. Number of Neighbour Cells found

  14. Neighbour Cell 1

  15. Neighbour Cell 2

  16. Neighbour Cell 3

  17. Neighbour Cell 4

  18. Neighbour Cell 5

  19. Neighbour Cell 6

  20. Different data rolls in the bottom bar. CH, PLMN, the scanned network and RSSI.

Syntax:

2G

  • ARFCN1,rs1,dBm1,MCC1,MNC1,NCC1,BCC1,C11,C21,LAC1,cell1
  • ARFCN2,rs2,dBm2,MCC2,MNC2,NCC2,BCC2,C12,C22,LAC2,cell2
  • ARFCNn,rsn,dBmn,MCCn,MNCn,NCCn,BCCn,C1n,C2n,LACn,celln

3G

  • UARFCN1,PSC1,EC/n01,RSCP1
  • UARFCN2,PSC2,EC/n02,RSCP2
  • UARFCNn,PSCn,EC/n0n,RSCPn

4G

  • EARFCN1,RSRQ1,RSRP1,PCI1
  • EARFCN2,RSRQ2,RSRP2,PCI2
  • EARFCNn,RSRQn,RSRPn,PCIn

If you press the down arrow once again you will get the following:

  1. SIM status
  2. Registration status
  3. “Network provider(EONS):” (Info text string)
  4. Network provider

Press the down button again and you will have gotten all the network information available:

  1. “APN:” (Info text string)
  2. APN
  3. Local IP Address
  4. Local IP Address 4G/LTE

Table below shows a brief explanation of the 3G network abbreviations

Abbreviation Full name Further Explanations
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.

MCC| Mobile Country Code| The first part of the PLMN code.
MNC| Mobile Network Code| The second part of the PLMN code.
EC/n0| Carrier to Noise Ratio|
LAC| Local Area Code|
CELL| CELL ID| Cell identification number
APN| Access Point Name| This will only be useful information if you have set up an ISP connection.
LIP| Local IP| This will only be useful information if you have set up an ISP connection.
RSCP| Received Signal Code

Power

| Measured in dBm
SQ| Signal Quality| Quality value for base station selection in dBm
SRxL|  | RX level value for base station selection indBm

Table below shows a brief explanation of the 4G network abbreviations

Abbreviation Full name Further Explanations
EARFCN CHANNEL E-UTRA Absolute Radio Frequency Channel Number
Band Frequency Band E-UTRA frequency band
DL DL bandwith DL bandwith
UL UL bandwith UL bandwith
Mode Duplex Mode TimeDivisionDuplex (TDD) or FrequencyDivisionDuplex

(FDD)
MCC| Mobile Country Code| The first part of the PLMN code.
MNC| Mobile Network Code| The second part of the PLMN code.
TAC| Tracking Area Code|
GCID| Global Cell ID| Global Cell ID
PhyC ID| Physical Cell ID| Physical Cell ID
SQ| Signal Quality| Quality value for base station selection in dBm
RSRP|  | Reference Signal Received Power
RSRQ|  | Reference Signal Received Quality

Note: A PLMN is identified by the Mobile Country Code (MCC) and the Mobile Network Code (MNC)

View last scan

ETM770-Signal-Strength-Meter-fig-13

  1. Starting at the main menu, press “Signal Scanning”

  2. At the Signal Scan menu, select “Last Scan”

  3. Scanned network.

  4. Referenced Signal Received Power (RSRP) is -91 dBm.

  5. RSRP Min and Max values in -dBm

  6. Referenced Signal Received Quality (RSRQ) is -7dB.

  7. RSRQ Min and Max values in -dBm

  8. Tracking Area Code: Global Cell ID

  9. Public Land Mobile Network(PLMN) is 240007: The channel is 2850

  10. Scanned network.

Communication Test

ETM770-Signal-Strength-Meter-fig-15

  1. Starting at the main menu, press “Communication Test”
  2. Press “PING: 8.8.8.8” This is the IP address to the Google server.
  3. See PING Result. It show success or fail. Ping round trip time in ms for three tests.
  • “PING Result:” (Info text string)
  • PING Reply result
  • No of packages Send: No of packages Received
  • 1st package sent to IP address, round trip time in ms
  • 2nd package sent to IP address, round trip time in ms
  • 3rd package sent to IP address, round trip time in ms
  • Packet statistic: sent, received, lost, lost in Percent

In order to change the PING address, send a SMS with following syntax to the device:

  • ET-IP3=”IP Address”: ”Port”

Example:

  • ET-IP3=8.8.8.8:80
  • This will set the PING address to the Google server.

Send Data to Server

ETM770-Signal-Strength-Meter-fig-17

  1. Starting at the main menu, press “Send Data to Server”

  2. Press “Send Last Scan” The IP address 54.77.219.177 is the address to ETM WEB Office server.

  3. Connecting ISP and Connecting Server.

  4. Display header line 1

  5. Display header line 2

  6. ISP Connection process Info

  7. ISP Connection result

  8. Server Connection process Info

  9. Server Connection result

  10. Server Connection process Info

  11. Empty space

In order to change the server address, send a SMS with following syntax to the device:

  • ET-IP1=”IP Address”: ”Port”

Example

  • ET-IP1=54.77.219.177:7162
  • This will set the server address to the EWO server.

Device Data

ETM770-Signal-Strength-Meter-fig-19

  1. Starting at the main menu, press “System”

  2. Select “Device Data”

  3. Device Data

  4. SIM card ID number(SCID)

  5. Device FW ID number

  6. Device HW number

  7. IMEI number

  8. Empty space

  9. Empty space

  10. Empty space

  11. Different data rolls in the bottom bar. CH, PLMN, the scanned network and RSSI

Select APN

ETM770-Signal-Strength-Meter-fig-21

  1. Starting at the main menu, press “System”
  2. Press “Select APN”
  3. Choose alternative in the menu.

In order to change the APN list, send SMS with following syntax to the device:

  • ETSAPN=“List position”, “APN name”

Example:

  • ETSAPN=1, m2m.tele2.com
  • ETSAPN=2, maingate.telia.se

This will result in the APN list shown figure “APN list” above.

Select User/Password for ISP

ETM770-Signal-Strength-Meter-fig-22

  1. Starting at the main menu, press “System”
  2. Press “Select User/PassW” in order to select username/password for the ISP
  3. Select Username in the menu.

In order to change the user/password list, send SMS with following syntax to the device:

  • ETSUP=“List position”, “Username”, “Password”

Example:

  • ETSUP=1,username1,internet1
  • ETSUP=2,username2,internet2

Server Address

ETM770-Signal-Strength-Meter-fig-23

  1. Starting at the main menu, press “System”

  2. Press “Server Address”

  3. See Server Address

  4. Remote IP address 1

  5. Remote Port 1

  6. Remote IP address 2

  7. Remote Port 2

  8. Empty space

  9. Empty space

  10. Empty space

  11. Different data rolls in the bottom bar. CH, PLMN, the scanned network and RSSI

Restart Device

ETM770-Signal-Strength-Meter-fig-25

  1. Starting at the main menu, press “System”
  2. Press “´Restart Device”
  3. The ETM770 will restart.

To turn off the device, press power button for 3 seconds.

Note: Pressing both the up and the down key for 5 second can also perform a restart of the device.

Contacts

ETM Mätteknik AB

ETM Pacific Pty Ltd

References

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