Kymeta mTenna Plus User manual

mTennaTM Plus and mTennaTM Select
Installation Guide
Document number: 700-00043-000-rev03
Compatible with ASM software release 1.2.0.3845
25 October 2018

Table of contents
1 Introduction 1
2 Package contents 1
2.1 mTenna Plus packaging 1
2.2 mTenna Select packaging 1
3 Before you start 2
3.1 Prerequisites 2
3.1.1 Installation tools required for installation 2
3.1.2 Files required for installation 2
3.2 Check installation site requirements 3
3.2.1 Check electrical systems for safety 3
4 Installation 4
4.1 Install KyWay outdoor units (ODUs) 4
4.2 Label ODU components 4
4.3 Assemble KyWay indoor unit (IDU) 5
4.3.1 Install the rack unit 5
4.3.2 Connect the cables 6
5 Set up mTenna Plus modem side Ethernet 7
6 Adjust ASM software and IP address 8
6.1 Configure a descriptive name for each ASM (optional) 9
7 Power on the system 10
8 Configure expected number of ODUs 11
9 Verify cables 11
10 Verify self-test results 12
10.1 Power-on self-test 12
10.2 Built-in self-test 12
10.3 Verification 12
11 Set mTenna Plus reboot time 14
12 Transmit power calibration and commissioning 15
12.1 Verify OpenAMIPcommunication 15
12.2 Transmit power calibration 15
12.2.1 Set mTenna Select attenuation 15
12.2.2 Align BUCcompression points 16
13 Revision history 18

© 2018 Kymeta Corporation and its affiliates. 1 25 October 2018
mTenna Plus and mTenna Select Installation Guide
1 Introduction
This document contains important step-by-step details for the installation and setup of the Kymeta™ mTenna™ Plus
and the Kymeta™ mTenna™ Select.
For your safety, read 700-00008-001 Kymeta Safety and Handling Guide before beginning assembly. Additionally,
reference 700-00019-000 Kymeta™ KyWay™ Terminal Installation Guide for information on installing the Kymeta™
KyWay™ terminal.
✎If your mTennau7 ASM is operating with software version 1.0.0 and 1.1.0, you need to upgrade ASM to software
version 1.2.0.3845 for mTenna Plus and mTenna Select to operate correctly. Contact Kymeta customer support to
get the mTenna Plus and mTenna Select upgrade kit.
2 Package contents
2.1 mTenna Plus packaging
(1) CABLE, AC INLET, 18AWG, 3 CONDUCTOR PLUG RECPT, 6.5FT
(5) CAP, PROTECTIVE, VINYL, 0.625 ID X 0.76 OD X .5 L
(4) NUT, CAGE, M6, 18-8SST
(4) SCREW, BHCS, M6X16, 18-8
(1) 700-00008-001 Kymeta safety and handling guide
(1) 700-00052-000 Kymeta™ mTenna™ Plus and mTenna™ Select Limited Warranty
2.2 mTenna Select packaging
(1) CABLE, CAT6 SHEILDED, 3FT
(5) CAP, PROTECTIVE, VINYL, 0.625 ID X 0.76 OD X 0.5 L
(4) NUT, CAGE, M6, 18-8SST
(4) SCREW, BHCS, M6X16, 18-8
(1) 700-00008-001 Kymeta safety and handling guide
(1) 700-00052-000 Kymeta™ mTenna™ Plus and mTenna™ Select Limited Warranty

© 2018 Kymeta Corporation and its affiliates. 2 25 October 2018
mTenna Plus and mTenna Select Installation Guide
3 Before you start
3.1 Prerequisites
3.1.1 Installation tools required for installation
Before you start, ensure you have all installation tools required for the mTenna Plus and mTenna Select system assembly.
Tool diagram Tool description
4 mm hex drive
Laptop for administration with two Ethernet ports and an SCP(secure
copy) client, SSH(secure shell) client,and mTenna Plus SSHkey.
3.1.2 Files required for installation
Ensure you have the following files from Kymeta:
700-00043-000 mTenna Plus and mTenna Select Installation Guide (PDF)
700-00045-000 mTenna Plus and mTenna Select User Guide (PDF)
mTenna Plus SSH key - use for command-line administrator access to the mTenna Plus
cable_checker.py – use to verify system cable installation
tx_cal.py – use to set attenuation for each KyWay ODU’s BUC
✎Download all necessary documentation and required files to a location that is accessible without internet access
to troubleshoot regardless of current connectivity.

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mTenna Plus and mTenna Select Installation Guide
3.2 Check installation site requirements
Prior to installation, ensure you meet the following indoor and outdoor requirements:
Up to 7U of rack space – see 4.3.1 Install the rack unit on page 5 for recommended rack configuration
Climate-controlled environment – ensure proper ventilation to meet operating temperature conditions of 0 °C
to 50 °C
Conduits to ODU – ensure sufficient conduit sizing for all RF and interface cables
Ensure sufficient rack space for all system components:
KyWay ODU – 2 to 4 units
mTenna I/O – 2 to 4 units
Gigabit ethernet switch – minimum number of ports is equal to number of ASMs + one port for the mTenna Plus +
one port for administration laptop
mTenna Plus – 1 unit
mTenna Select –1 unit
Modem – 1 unit
Power strip (8+ ports, surge protection) – 2 units
✎The number of mTenna I/O units is equal to the number of mTennau7 ASMs.
3.2.1 Check electrical systems for safety
Prior to installation, do the following:
Ensure each KyWay ODU and mTenna I/O have a common ground.
Disconnect the electrical power from the modem and each mTenna I/O.
Connect each ODU to its mTenna I/O.
Connect the modem to each mTenna I/O.
Ensure the power switch of the mTenna Plus is in the off position before connecting electrical power to the modem
and to each mTenna I/O.
Practice basic electrical safety measures. Follow local, national, and other regulations with respect to these devices.

© 2018 Kymeta Corporation and its affiliates. 4 25 October 2018
mTenna Plus and mTenna Select Installation Guide
4 Installation
4.1 Install KyWay outdoor units (ODUs)
Install each KyWay ODU according to 700-00019-000 KyWay Terminal Installation Guide. If you are using the adapter
kit, before mounting each KyWay ODU, swap the voltage-switched LNB provided with the KyWay terminal with the
tone-switched and externally-referenced LNB NJR2842EN. Refer to 700-00032-000 KyWay Terminal User Manual for
instructions on how to replace the LNB.
4.2 Label ODU components
To reduce the possibility of crossing cables, Kymeta recommends that you label all components of each KyWay ODU.
This recommendation includes labeling the ODU, IDU, and cabling from the ASM to its corresponding mTenna I/O.
The following table is a list of cables that you will need to label at both ends. Refer to the cabling diagram in Appendix B:
Network setup on page 20 for a drawing of the cables described in the table below.
ODU IDU mTenna Plus mTenna Select
ODU-to-mTenna Plus
RXcable
mTenna I/O-to-switch
Ethernet cable
mTenna Plus-to-modem
RX cable
mTenna Plus-to-modem
TX cable
ODU-to-mTenna Select
TXcable
mTenna I/O power cable mTenna Plus-to-switch
Ethernet cable
mTenna Select-to-
mTenna Plus shielded
Ethernet cable
ODUinterface cable to
mTenna I/O
Modem power cable mTenna Plus-to-modem
Ethernet cable
Network switch power
cable
mTenna Plus power cable

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mTenna Plus and mTenna Select Installation Guide
4.3 Assemble KyWay indoor unit (IDU)
4.3.1 Install the rack unit
1. Mount the mTenna I/O as described in 700-00019-000 Kymeta KyWay Terminal Installation Guide.
2. Mount the modem.
3. Mount the mTenna Plus.
4. Mount the mTenna Select.
5. Mount the network switch.
✎The mTenna Plus and mTenna Select vents are on the top of each box. Standard rack spacing allows sufficient
ventilation.
To ensure proper operation of all indoor components, Kymeta recommends that you organize each rack. See below for
an example installation configuration one 12U rack.

© 2018 Kymeta Corporation and its affiliates. 6 25 October 2018
mTenna Plus and mTenna Select Installation Guide
4.3.2 Connect the cables
✎Ensure all the components are powered off prior to connecting the cables.
⚠Read the instructions below carefully as damage to the mTenna Plus, mTenna Select, or modem may occur from
improperly seated or routed cables.
Install ODU cabling to mTenna Plus and mTenna Select
1. Connect the ODU RX cable to the RX In port on the back of the mTenna Plus and finger tighten.
2. Connect the ODU TX cable to the TX Out port on the back of the mTenna Select and finger tighten.
✎Ensure connections for each ASM are consistent:
- ASM 1 connects to RX1 on mTenna Plus and TX1 on mTenna Select
- ASM 2 connects to RX2 on mTenna Plus and TX2 on mTenna Select, etc.
3. Connect an Ethernet cable to the mTenna I/O and a port on the network switch.
4. Connect the power cable to the mTenna I/O and plug into the power strip.
5. Repeat the above steps for each ASM being installed.
Install mTenna Plus and mTenna Selectcables
1. Connect an Ethernet cable to the modem LAN port on the mTenna Plus and into the administrative port on the
modem, as specified by the modem options file.
2. Connect an Ethernet cable to the mTenna LAN port on the mTenna Plus and into a port on the network switch.
3. Connect the mTenna Select shielded Ethernet cable to the mTenna Select port on the mTenna Plus and into the
mTenna Plus port on the mTenna Select.
✎Power is carried on the mTenna Select cable. If an improper, unshielded cable is installed or the cable is
installed incorrectly, damage may occur. Damage to the modem or other devices can occur if plugged into the
mTenna Select port.
4. Connect an RF cable to the RX Out port on the mTenna Plus and into the RX1 port on the modem.
5. Connect an RF cable to the TX In port on the mTenna Select and into the TX Out port on the modem.
6. Connect the power cable to the mTenna Plus and plug into the power strip.
✎Do NOT disconnect Ethernet cable while operating. If disconnected, reconnect and reboot the system.

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mTenna Plus and mTenna Select Installation Guide
5 Set up mTenna Plus modem side Ethernet
1. Set the laptop network adapter IP address to 10.0.0.16. Note that the default gateway should be 10.0.0.1.
2. Connect your workstation to an available Ethernet port on the network switch.
3. Power on the mTenna Plus using the switch on the back of the mTenna Plus unit. Wait for the mTenna Plus to
boot.
4. Using an SSH tool, connect to the mTenna Plus at 10.0.0.1. Refer to 700-00045-000 mTenna Plus and mTenna
Select User Guide for additional guidance. The username iskymetaand authentication occurs with a SSH key
unique to the mTenna Plus units.
On a modem running Velocity software, run the following command: sudo qdnetconf.sh reset.
On a modem running Evolution software, do the following:
1. Replace X.X.X.X with the OpenAMIP IP address set by the NOC (also found in the options file)
2. Replace Y.Y.Y.Y with the modem IP address set by the NOC. The default values are
eth0 static 192.168.44.2 255.255.255.0 192.168.44.1 8.8.8.8
For example:
sudo qdnetconf.sh reset
sudo qdnetconf.sh eth0.1 dhcp
sudo qdnetconf.sh eth0 static X.X.X.X 255.255.255.0 Y.Y.Y.Y 8.8.8.8
3. Reboot the mTenna Plus by running the following command: sudo reboot.
If for any reason, connectivity to the mTenna Plus fails, refer to the "Recover the Network Configuration" section of 700-
00045-000 mTenna™ Plus and mTenna™ Select User Guide to recover the default network configuration.

© 2018 Kymeta Corporation and its affiliates. 8 25 October 2018
mTenna Plus and mTenna Select Installation Guide
6 Adjust ASM software and IP address
Before powering on the KyWay ODU, you must adjust each ASM’s IP configuration for communication with the mTenna
Plus. For the mTenna Plus and mTenna Select to work properly, manually configure each ASM IP address to a unique
address.
1. Set the laptop network adapter IP address to 192.168.0.16.
2. Connect your workstation to an available Ethernet port on the network switch.
3. Power on a single mTenna I/O.
4. Press and hold the Recovery button on the mTenna I/O for 5 seconds, which restores the ASM to a known
default network state. It will now respond to the IP address 192.168.0.10.
5. Connect to the ASM’s web-based user interface and navigate to Settings.
6. Under software update, click Choose File and select the KATS_SWU[version #].tgz file provided to you in your
software page.
7. Click Update and wait for the ASM to update and complete a reboot. Reboot takes approximately 60 seconds.
8. Return to the ASM’s web user interface and navigate to Settings. Adjust the ASM’s reboot time to an appropriate
local time and day of the week. Ensure that all ASMs are set for the same reboot time. Remember this day and
time to properly set the mTenna Plus reboot time as indicated in 11 Set mTenna Plus reboot time on page 14,
and inform your Kymeta representative as well as the end-user.
9. In Settings >Network configuration, adjust the Local IP addresses to match the configurations listed the table
below.
✎For the ASMs to be eligible for over-the-air update, you must configure the gateway and the DNS.
10. Repeat steps 3 – 9 for each ASM. The mTenna Plus and mTenna Select require sequential ASM numbering.
✎IP addresses for ASMs should be set according to RFC1918:
10.0.0.0 – 10.255.255.255 (10/8 prefix)
172.16.0.0 – 172.31.255.255 (172.16/12 prefix)
192.168.0.0 – 192.168.255.255 (192.168/16 prefix)
ASM Local IPaddress Netmask Gateway DNS
1 10.0.0.101 255.255.255.0 10.0.0.1 8.8.8.8
2 10.0.0.102 255.255.255.0 10.0.0.1 8.8.8.8
3 10.0.0.103 255.255.255.0 10.0.0.1 8.8.8.8
4 10.0.0.104 255.255.255.0 10.0.0.1 8.8.8.8

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mTenna Plus and mTenna Select Installation Guide
6.1 Configure a descriptive name for each ASM (optional)
On the mTenna Plus web-based user interface, the connected ASMs are referred to as “ODU 1,” “ODU 2,” etc. You can
configure a more descriptive name for each ODU to aid in relating the displayed metrics to the physical installation. To
configure an alias for an ASM, do the following:
1. connect to the mTenna Plus via SSH (10.0.0.1, username 'kymeta' and using key provided).
2. Use the following command:
$ sudo qdhostconf.sh <asm#> [IP addr] [alias] asm# is the ASM to configure (asm1,
asm2, asm3, or asm4)
IP addr - is the IP address of the ASM (as configured in 4.1)
alias - is the descriptive name of the ASM
3. Restart the mTenna Plus for these changes to take effect.

© 2018 Kymeta Corporation and its affiliates. 10 25 October 2018
mTenna Plus and mTenna Select Installation Guide
7 Power on the system
✎Boot all ASMs prior to powering the mTenna Plus and the modem to ensure that the mTenna Plus correctly finds
and identifies all ASMs.
After you configure all ASM IP addresses, follow the instructions below to power on the mTenna Plus and the modem.
1. Set the laptop network adapter IP address to 10.0.0.16. Set the default gateway to 10.0.0.1.
2. Connect your laptop to an available Ethernet port on the network switch.
3. Verify correct cabling of the entire system before applying power to the mTenna Plus.
4. Power on the mTenna Plus using the switch on the back of the mTenna Plus unit. Wait for the mTenna Plus to
boot.
5. After the mTenna Plus has fully booted (up to two minutes), verify LEDs on both the mTenna Plus and the mTenna
Select light up:
mTenna Plus Power LED displays green
mTenna Plus RX IN LED displays orange
mTenna Plus RX OUT LED displays red
mTenna Select Power LED displays green
mTenna Select TX IN LEDs display red
One mTenna Select TX OUT LED displays green
Three mTenna Select TX OUT LEDs display orange
6. Connect to the mTenna Plus at 10.0.0.1. Refer to 700-00045-000 mTenna Plus and Select User Guide for
additional guidance. The username is kymeta and authentication occurs with a new SSH key.
7. Power on the modem by plugging the iDirect X7 in to the power-strip.
8. Access the modem UI. By default, the modem’s IP address is 192.168.44.1. The mTenna Plus provides a bridge to
the modem to permit access of the modem UI without adjusting network configuration on the administrative
laptop.
✎If you are unable to view the modem UI, do the following:
-Check that your gateway is set to 10.0.0.1.
-Turn off extra adapters that my interfere with routing (for example, Wi-Fi).
To resolve routing, manually configure the laptop routing table to specify that all traffic bound for 192.168.44.1 goes
to a gateway at 10.0.0.1.

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mTenna Plus and mTenna Select Installation Guide
8 Configure expected number of ODUs
The default number of ODUs configured for the mTenna Plus and mTenna Select is four. If your installation uses four
ODUs, no action is necessary.
If you need to configure less than four ODUs, execute the following command. Note that the example below configures
three ASMs; the suggested configuration disables the fourth ODU:
libkymetaservice-set-setting.py -s hardware-service -k configured-asms:1 asm1:1 asm2:1
asm3:1 asm4:0
{"response": 0, "argument": {}}
libkymetaservice-get-setting.py -s hardware-service -k configured-asms
{"response": 0, "argument": {"asm1": true, "asm2": true, "asm3": true, "asm4": false}}
Reboot the KyWay IDU for this change to take effect.
9 Verify cables
After the full system has booted and you have been able to ping and connect to the mTenna Plus via SSH at 10.0.0.1,
confirm the cable connections via a software script.
1. Copy cable_checker.py (provided in package of software updates) into the /storage/tmp/ directory
of the mTenna Plus using WinSCP, mobaXterm (or similar), or with the following Linux command executed from
the directory housing the script cable_checker.py:
2. Connect to the mTenna Plus via SSH and run cable_checker.py:
$ python /storage/tmp/cable_checker.py
The script may take 90 seconds to run.
If any of the resulting output indicates a failure, physically check the connections to the ASM and mTenna Plus and rerun
the script.

© 2018 Kymeta Corporation and its affiliates. 12 25 October 2018
mTenna Plus and mTenna Select Installation Guide
10 Verify self-test results
Two kinds of self-tests are available for the user: the power-on self-test (POST), which run every time the system starts,
and the built-in self-test (BIST), which could be executed on an already running system. Verify results from both sets to
confirm correct installation.
10.1 Power-on self-test
The purpose of the power-on self-test is to identify any system failures in a timely manner. The power-on self-test runs
on each reboot. Verify it passes before using the system.
To identify if power-on self-test passes or fails refer to Power LED on mTenna Plus and mTenna Select:
Green represents a successful test.
Red represents a failed test.
Use the following REST API request to obtain the results of the power-on self-test:
curl --user admin:2Cfg^Ant -X GET http://<mTennaPlus_ip>/v1/mast/post
where <mTennaPlus_ip> is the IP address of the mTenna Plus.
10.2 Built-in self-test
Self-test routines initiate during normal operation. These routines exclude any tests that may interfere with antenna
operation. Check that the built-in self-test passes before starting to use the system.
Use the following RESTAPI request to obtain the built-in self-test results:
curl --user admin:2Cfg^Ant -X GET http://<mTennaPlus_ip>/v1/mast/bist
where <mTennaPlus_ip> is the IP address of the mTenna Plus. Do not include <>.
10.3 Verification
Tests results are in JSON format and share a common schema. To identify if a test passes, refer to the exit code or root
“status” field. Zero values indicate passing.
Here are some examples:
Example test pass
{
"classname": "OscCtrl",
"max": "250025000",
"message": "",
"min": "249975000",
"name": "Frequency_JESD_REF",

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mTenna Plus and mTenna Select Installation Guide
"status": 0,
"time": 0,
"value": "249999645" },
Example test failure
{ "classname": "OscCtrl", "max": "250025000", "message": "Expected: (value) >= (min),
actual: 246281109 vs 249975000", "min": "249975000", "name": "Frequency_JESD_RX1_
REC0", "status": 1, "time": 0.001, "value": "246281109" },
Note that the status field contains 0on success and 1on failure. Find additional information in the message field,
the classname field, and the name field.

© 2018 Kymeta Corporation and its affiliates. 14 25 October 2018
mTenna Plus and mTenna Select Installation Guide
11 Set mTenna Plus reboot time
Prior to commissioning, adjust the mTenna Plus reboot time as described below.
The mTenna Plus system automatically reboots every 24 hours. The default configuration reboots the system at 10:03
UTC (Coordinated Universal Time), but you may configure the time and day of the reboot by modifying the default
crontab file.
✎Set the mTenna Plus 24-hour reboot for three minutes after the ASM reboot time.
To change the reboot time, run the following command at the mTenna Plus terminal to modify the default crontab entry:
$ crontab –e
Executing this command opens a vim text editor session with the current crontab file loaded. For help with editing or
saving the crontab file, refer to the vim documentation for the relevant commands.
A crontab file has five fields for specifying the date and time followed by the command to be run at that interval. Modify
the first field to change the minute (0 – 59), and modify the second field to change the hour (0 – 23). All date and time
values in the crontab file are in UTC. You may change the reboot timing of the mTenna Plus to run on specified days of
the week by adding a value (or values, separated by a comma without any spaces) to the fifth field "weekday." A 0
corresponds to Sunday, and 1 corresponds to Monday. Lengthening the reboot time beyond once per 24-hours may
result in unexpected behavior of the mTenna Plus that could inhibit operations and result in link downtime.
Save the crontab file and exit the vim editor session. The new reboot time is active immediately but will not persist after a
system reboot unless the following command is executed:
$ cron-save.sh
kymeta: User crontab configuration saved
This step ensures that the modified reboot time persists after a system reboot.

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mTenna Plus and mTenna Select Installation Guide
12 Transmit power calibration and commissioning
12.1 Verify OpenAMIPcommunication
Before beginning commissioning and power calibration, ensure that the modem is communicating with the mTenna
Plus. Review the mTenna Plus user interface Status page to confirm the value for “Plus Connected” is “true”. Additionally,
confirm that “Plus Control” is “true” for each configured ODU.
If it appears that OpenAMIP is not working correctly, check for compatibility in the IP configuration of the ASMs, mTenna
Plus, and the modem options file. If you are not able to achieve communication between the modem and the mTenna
Plus, contact your Kymeta representative.
✎To checkthe complete IP configuration of the mTenna Plus, connect to the mTenna Plus via SSH and execute the
following command: sudo cat /storage/settings/interfaces.
12.2 Transmit power calibration
The goals of the transmit power calibration process are the following:
Ensure all ODUs are operating in a range with adequate power margin.
Align the P1dB compression points of all the ODUs so that each BUC reaches P1dB compression at the same
output power by the modem.
✎Before beginning P1dB testing on any ASMs, ensure that no BUC attenuation is set on any ASM by navigating to
Pointing > Commissioning Mode > BUC Settings for each ASM.
12.2.1 Set mTenna Select attenuation
The default configuration of the mTenna Select provides 14 dB of attenuation across all four TX Out paths to the ASMs
to offset 14 dB of gain the mTenna Select also provides. This is sufficient for most installations with longer cable runs to
provide power levels within the operating range of the modem and BUC. However, if the link budget indicates this is
insufficient, set additional attenuation at the mTenna Select before beginning commissioning and power calibration.
Attenuation settings between 0 and 31.75 dB in 02.5 dB increments are valid. If during operation the iDirect modem has
insufficient tailroom (output power is less than -32 dBm), add attenuation to the mTenna Select.
If required by your link budget or modem diagnostics, modify attenuation at the mTenna Select. Connect to the mTenna
Plus via SSH, and then execute the following commands to get and set values:
libkymetaservice-get-setting.py -s hardware-service -k arbitrator-attenuation
libkymetaservice-set-setting.py -s hardware-service -k arbitrator-attenuation:14 .0

© 2018 Kymeta Corporation and its affiliates. 16 25 October 2018
mTenna Plus and mTenna Select Installation Guide
12.2.2 Align BUCcompression points
To align the 1 dB compression points of each BUC, commission each ODU with the network operator. This activity
requires that each ASM can obtain line-of-sight to the satellite, and the installer can contact the NOC for 1 dB
compression measurements while accessing the ASM web-based user interface.
✎Ensure the ODU remains stationary during each compression test.
1. Prevent the modem from rebooting by opening telnet into the iDirect Falcon interface and executing the
following command (refer to modem documentation if necessary):
beamselector lock
2. Obtain P1dB measurement of an ASM.
a. Navigate the vessel or ASMs so that the ASM under measurement has line-of-sight of the satellite and
achieves PL sync.
b. Physically cover the ASMs with boxes or other RF-blocking material so that the ASM under measurement
has the best SNR of all ASMs.
✎If physical blockage of the other ASMs is not possible, you will need to execute more software
commands to force transmit from the desired antenna. See Appendix A for this information.
c. Confirm that transmit is occurring from the desired ASM using the GUI, or note that the LED for the
desired ASM on the mTenna Select should be green while the others are yellow.
d. Set RF transmit frequency for the ASM, as given by the NOC, for the ASM by navigating to Pointing >
Commissioning Mode > Select TX Frequency.
e. Execute the P1dB testing with the NOC engineer using the iDirect X7 user interface to command transmit
from the modem.
3. Record the P1dB measurement of each ASM in the following table.
ASM P1dB measured value
1
2
3
4
4. Repeat steps 2 and 3 for each ASM.

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mTenna Plus and mTenna Select Installation Guide
5. Adjust BUC attenuation for each ASM:
a. Copy the script tx_cal.py into the mTenna Plus directory/storage/tmp using WinSCP or similar.
b. Connect to the mTenna Plus via SSH, and then navigate to the directory /storage/tmp
$ cd /storage/tmp
c. Run the script tx_cal.py in a Python interpreter with arguments as follows:
# arguments [number of ASMs] [ASM1 p1dB] [ASM2 p1dB] [ASM3 p1dB] [ASM4 p1dB]
# examples:
# python tx_cal.py 4 -25 -24 -24 -26
# python tx_cal.py 3 -25 -24 -24
$ python tx_cal.py 4 -23 -23 -22 -19
✎The script above addresses the ASMs and sets the attenuation. To confirm the attenuation was set, navigate to
the ASM’s web user interface Pointing >Commissioning Mode and view the BUC attenuation setting. If the
attenuation does not match the attenuation set by the script, set it manually.
This manual suits for next models
1
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