Microair Avionics T2000ADSB Upgrade to ADSB for Better Visibility User Manual

Introduction
The T2000ADSB transponder is designed to meet aircraft surveillance requirements of ATCRBS Mode 3A/C with ADS-B. The manual also covers the upgrade version of the transponder to provide ADSB In functionality.

FAQ
Q: Can I copy or distribute this user manual?
A: No, this user manual is a controlled document and may not be] copied, amended, or distributed without the prior consent of Microair Avionics Pty Ltd.

About This Document
Microair Avionics has developed the T2000ADSB transponder to provide for aircraft surveillance requirements of ATCRBS Mode 3A/C with ADS-B. This manual also covers version of the T2000ADSB transponder upgrade to also provide ADSB In.
This is a controlled document, and may not be copied, amended, or distributed without the prior consent of Microair Avionics Pty Ltd.
© Microair Avionics Pty Ltd

DOCUMENT REVISION STATUS

Revision	Date	Change
1.0	11/02/01	Initial Draft
1.1	24/03/23	Minor corrections, Programming section moved to Installation Manual.
1.2		Not issued
1.3	28/08/23	Added new section 4 on Firmware updating
1.4	31/03/24	ADSB-IO added

INTRODUCTION

The T2000ADSB comes in two models the T2000ADSB and the T2000ADSB-IO and has been designed to operate seamlessly in two different modes, to satisfy aircraft surveillance requirements:

ATCRBS Mode 3A/C
ADS-B

Both mode of operation will operate simultaneously. ADS-B operates at all time power is applied and the data required for a message is available. ATCRBS operates when the aircraft is airborne.
The ADS-B messages are derived from an inbuilt GPS source. The T2000ADSB also has an inbuilt altimeter but is designed to operate with any TSO-c88a compliant altimeter or encoder, depending on user preference.
The T2000ADSB-IO also provides and ADSB in capability allowing pilots to display surrounding ADSV out traffic.

ATCRBS Codes

Aircraft operating in controlled airspace will be allocated a unique 4 digit code. Aircraft operating outside but in close proximity to controlled airspace may be allocated a code but would generally squawk that countries VFR code (1200 in most countries).

There are also several special codes, which are used to identify aircraft in special situations. These include:
1200 Civil VFR Flights OCTA not participating in Radar Information Service (RIS). General Aviation Code (US and other countries)

7000 VFR General Aviation Code (Europe)
7500 Unlawful Interference Code

7600 Radio Communications Failure

Emergency Code
Code 2100 is a test code that can be used by qualified personal to test the transponder to ATC.
The user should check the Civil Aviation Rules/Regulations to determine the VFR General Aviation transponder code for their country.

The ADS-B message includes information, which describes the aircraft’s “status”. The aircraft’s status is determined by the currently selected mode A ID code.
Example: Code 7500 is selected Aircraft status = UNLAWFUL INTERFERENCE

Code 7600 is selected Aircraft status = NO COMMUNICATION
Code 7700 is selected Aircraft status = EMERGENCY

For all other mode A codes the aircraft status will be NO EMERGENCY.

Mode 3A/C
The Microair T2000ADSB Transponder is compliant to RTCA/DO-144, and will operate in the environment of a Radar Beacon System. This system interrogates the transponder, which in turn replies with identity code and altitude information. The radar system consists of a network of ground stations, which sweep the horizon like conventional radar. When the transponder in the aircraft detects the radar sweep (is illuminated), the transponder replies with a burst transmission giving its identity code and altitude.

The system presents the replies from all transponders in range of the ground stations on a single display screen. This allows ATC to easily locate, identify, and see the altitude of all traffic in their airspace.
A transponder’s reply is termed a squawk. Hence the current code being used by the transponder is termed the squawk code. At times of high airspace activity, ATC may wish to uniquely identify an individual aircraft with a request to squawk ident. When the pilot uses the ident control on the transponder, a distinctive indication appears on the ATC display. The ident control should not be used unless ATC requests it.
ATC will issue a code to an aircraft requesting entry into its controlled airspace. This code is normally unique for each aircraft, each time that aircraft passes through the airspace. The code is 4 digits long, and each digit can range from 0-7.

Mode ADSB
The Microair T200ADSB is compliant with RTCA/DO-260B & C, and will transmit ADSB extended squitter messages containing the aircraft’s position (from the GPS), identity, altitude, and status (eg normal, no comm., emergency, etc).

The feature which makes ADS-B transponders different to Mode A/C or Mode S types is they are not dependent on radar to interrogate them. The ADS-B transponder will issue a series messages called extended squirters. These messages are sent at a rate of approximately 6 messages per second. The position information in these messages is sourced from a compliant GPS receiver that in addition to position and velocity also provides integrity. Integrity is a measure of the quality of the satellite data available to the receiver in that location at that time. The GPS receiver must be capable of calculating the integrity as a value to be sent in the squitter message. If the integrity falls below a certain level the position data cannot be used by ATC.
Other aircraft may be equipped with ADS-B receivers (ADSB in), which can receiver and decode ADS-B extended squitter messages. This information can then be displayed in the cockpit to give the crew an accurate indication of the traffic situation around them.
The ADS-B message data for the aircraft status is linked to the mode A code. If the pilot selects a mode A code to indicate an abnormal situation (eg 7600 = No Communications), the aircraft status data will change to reflect this.

DISPLAY LAYOUT

The Microair T2000ADSB is a 57mm diameter face version to fit the standard 2 ¼ inch instrument hole. The mounting is by 4 x M4 machine screws, located through the panel and screwed into threaded holes in each corner of the transponder’s front face.

IMPORTANT NOTE
Use only the factory supplied screws or M4 x 12mm machine screws. Do NOT oversize the holes, or use over-length screws. These actions may damage internal components of the transponder.

Refer to the T2000ADSB Installation manual for full details on how to install your transponder.

Display Function
The T2000ADSB has a dual line display of 8 characters each, with the active code on the top line, and the standby code on the bottom. With the SELECTMODE knob set to either the ON or ALT positions, the active code is displayed on the top line, and the standby code is displayed on the bottom line.
In the top left corner the operational mode character (X, A, or C character) is displayed. Next to it is the ADS-B annunciator (* character) which flashes with every ADS-B squitter transmitted. At the top right is the Mode A/C annunciator (R character) which also flashes with every transponder reply transmitted. If the ID key is pressed to activate the ident function, the R character is replaced with an I character while the ident function is operating.

With the SELECTMODE knob in the ALT DISPLAY position, the active code is displayed on the top line, and the various position, velocity and time (PVT) information is displayed on the bottom line. Refer section 3.3 below.

CONTROL FUNCTIONS

This section describes the transponder control keys and their functions. Many of the control keys have more than one function, and some keys access multi-option menus, which can be scrolled.

CONTROL	DESCRIPTION
1	INFO SELECT Key
2	MODE Key
3	ENTER Key
4	IDENT Key
5	TOGGLE Key
6	CODE SELECT Knob
7	SELECTMODE Knob
8	VFR Key

SELECTMODE KNOB
The SELECTMODE knob allows the user to switch the transponder between the 4 operating modes.

STANDBY	In standby the transponder is powered up, but will not transmit in any mode A/C replies. ADSB is active. On the active display line the letter X appears on the left hand side.
ON	The T2000ADSB will reply to Mode A interrogations with the active ID code displayed on the top line. The T2000ADSB will also reply to mode C interrogations, sending framing pulses only, in accordance with mode 3 requirements. On the active display line the letter A appears on the left hand side.
ALT	Will reply to Mode A and C interrogations, with the mode C encoder information. In the absence of a valid encoder input, only the C framing pulse will be sent. On the active display line the letter C appears on the left hand side.
ALT DISPLAY	The standby code is replaced with the data display option selected by pressing the (I) info button. On the active display line the letter C appears on the left hand side.

CODE SELECT Knob
The CODE SELECT knob can be rotated clockwise to scroll upwards, and counter-clockwise to scroll downwards. Each digit of the code is adjusted separately. The adjust function starts with the left hand digit, and is moved across to the next digit by pushing the CODE SELECT knob inwards. After 10 seconds of inactivity the cursor will revert to the left hand digit.

NFORMATION SELECT KEY
The Information Select key is used to cycle through a number of different T2000ADSB information screens as shown below. Note that the Information Select button only displays data when the Code Select Knob is turned to the ALT DISPLAY setting.

PA – Pressure Altitude (altitude with reference to 1013Mb) OR Q – Altitude with reference to the set QNH in either Feet or Meters
If the altitude units are set to feet the altitude is followed by the F character. If the altitude units are in metres, the altitude is followed by the M character. If no QNH or BARO value has been entered (default 1013mB or 29.92HG), the raw encoder output is displayed as “pressure altitude”, and the characters PA appear at the lower left. If a QNH / BARO value has been set, the Q character appears at the lower left.
UT – Time UTC
TR – Track. GPS derived True Track and GPS derived Ground Speed (in kts)

x – Latitude (where x = N or S). GPS derived latitude as DD.DDD i.e. S27.3250 or N54.2814
x – Longitude (where x = E or W). GPS derived longitude DDD.DDD i.e. E153.083 or W007.125
GA – GPS Altitude. GPS derived Height above WGS-84 ellipsoid

MODE KEY
Press the MODE key to access the MODE MENU. The first item of the MODE MENU is displayed. Step through the MODE MENU by pressing the MODE key. After the last menu item the T2000ADSB returns to the operational display currently in use.

The MODE MENU is designed to allow the operator fast easy access to functions and parameters, which may need to be adjusted in flight.

ASSIGNED (ALTITUDE)
The user can input an assigned altitude given by ATC. When used with the altitude buffer value, an audio alert and display indicator advises when the aircraft has climbed or descended, from the assigned altitude.

Press MODE key (1 time)	To select Assigned option
Press CODE SELECT knob	Change increment display value between thousands of feet and hundreds of feet
Rotate CODE SELECT knob	Increment displayed value.
Press ENTER key	To set default value. The default is 0.
Press ENTER or toggle key	To save and display returns to current operational display

When entering an altitude…

Press the CODE SELECT knob to Change increment display value between thousands of feet and hundreds of feet.
Rotate the CODE SELECT knob to increase or decrease the height value.

Press the ENTER key to return the ASSIGNED ALTITUDE to the default value of 0,
OR
Press the Toggle key to save the height value and return to the operational display.
If Assigned is set to 0, the altitude alert function is disabled.

QNH (BAROMETRIC PRESSURE)
The altitude encoder outputs a pressure altitude relative to a fixed pressure of 1013mb (29.92inHg) and this is the altitude always reported in the Mode C reply and ADS-B extended squitter messages. The aircraft’s altimeter however is normally adjusted for actual surface pressure before take off and during flight. This means the encoder altitude may not be the same as the altimeter reading.
The QNH can be entered here to allow the T2000ADSB to compensate the displayed altitude for surface pressure, and hence read the same as the aircraft’s altimeter. The default QNH is 1013mb (or 29.92 if inHg selected, see programming mode below). If the QNH is set to 1013mb, the altitude displayed will default to the unadjusted pressure altitude direct from the encoder. If the QNH is set to a discrete value (normally provided by ATC), the displayed encoder pressure altitude will be adjusted for the QNH value. The pilot can select any barometric pressure over the range 900 – 1100mB (or 27.00 – 31.99inHg).

Press MODE key (once)	To select QNH option
Rotate CODE SELECT knob	Scroll QNH value up or down to the desired value. The default is 1013
Press ENTER key	To set default value.
Press toggle key	Display returns to current operational display

IMPORTANT NOTE
The T2000ADSB will only transmit the encoder pressure altitude. The adjusted QNH altitude is NEVER transmitted, even when it is selected for display.

BACKLIGHTING
The T2000ADSB LCD display backlight has 11 levels available from 0 – 100%. The level set is remembered and set once the self test is completed during the net power up. Off to its brightest level:

Press MODE key (5 times)	To select BACKLITE option
Rotate CODE SELECT knob	Rotate the code select clockwise to increase the backlight brightness (up to 100%) and counter clockwise to decrease the brightness (down to 0%) in 10% increments.
Press toggle key	Setting is saved & the display returns to current operational display

For battery operators, Microair Avionics recommends that the backlighting be set off to save power.

FLIGHT ID
For most sport and general aviation aircraft the Flight ID will be the aircraft’s registration or call sign and is not likely to be changed. Once the flight ID is inputted, it is saved into memory, and will be recalled when the transponder is next turned on. The Flight ID defaults to the A/C ID from the PROGRAM MODE menu.

If the Flight ID is not entered, the ADS-B message will transmit “null” values in the Aircraft Identification message.

Press MODE key (6 times)	To select FLT ID option
Rotate CODE SELECT knob	Scroll lower line to select desired character. The default ID is the aircraft ID.
Press CODE SELECT knob	Moves cursor to the next character.
Press ENTER key	To set default value. Default value is blank.
Press toggle key	Display returns to current operational display

There are rules governing the correct makeup of the flight ID, to ensure the ADS-B message is formatted correctly. In most cases the flight ID will be the aircraft’s registration. The default value of the Flight ID is the Aircraft ID that is inputted in the PROGRAM MODE menu.
The flight ID can have a maximum of 8 characters and can consists of capital letters A-Z and the numbers 0-9 with spaces in the trailing unused positions (spaces are not allowed in within the Flight or Aircraft IDs.

BUFFER ALT
The user can input a buffer altitude, above and below the assigned altitude, to define a height band in which to fly. When the aircraft exceeds the upper or lower limit, an indicator alert message will be displayed. The alert message advises the pilot of how far, above or below the assigned altitude the aircraft is. If audio output is connected to the aircrafts audio system, an audio tone is heard as well.

Press MODE key (3 times)	To select Buffer Alt option
Rotate CODE SELECT knob	Select the buffer altitude in 50′ increments in the range 0 to 2000′
Press ENTER key	Save and move to the next item
Press Toggle key	Save and Display returns to current operational display

If the aircraft climbs or descends outside the altitude buffer limits, a Hi / Lo warning is displayed on the lower line.

T2000ADSB advises the pilot that the aircraft is 500 feet above the Assigned altitude. An audio warning tone is heard.
T2000ADSB advises the pilot that the aircraft is 500 feet below the Assigned altitude. An audio warning tone is heard.

ENTER KEY
The ENTER key is a confirmation key used to confirm information the user has inputted. After pressing the ENTER key, the display will typically give the message SAVED, for a short period.
The ENTER key is also used to quick-set a parameter to a default value.

The ENTER key is also used to acknowledge alerts and error messages. When an alert or error message appears on the lower line of the display, the pilot can press the ENTER key to acknowledge the alert / message. The display will then revert to the previous operational display.
Some alerts or error messages, if the alert or error situation continues, will after a preset time display again on the lower line, to remind the pilot that the alert / error still exists.

TOGGLE KEY
This key acts as a toggle switch, exchanging the active and standby codes.

When the transponder is operating in ALT DISPLAY the bottom line displays the encoder altitude instead of the standby code. The standby code is stored in memory. To toggle the active and standby codes in this mode, push the toggle key once to display the standby code on the bottom line. The standby code is displayed for 10 seconds. Push the toggle key again to exchange the active and standby codes. Once the codes have been exchanged, the display will revert back after 10 seconds, to displaying the altitude on the bottom line.

In all modes of operation, only the active code is transmitted.
The toggle key is also used to return to the operational screen from the MODE and PROGRAM MODE menus.

VFR – HOT KEY
To bring the stored VFR code to the standby line press the ENTER key then the VFR key.
The VFR key will default the standby code immediately to the stored VFR code. Typically this code will be 1200 for a General Aviation aircraft. The VFR key calls the value set in the VFR option of the PROGRAM MODE menu.
To transfer the VFR code to the active position, press the toggle key. If no code is entered, after 10 seconds idle the standby position will revert back to the original VFR code.

ID KEY
To initiate the Ident function press the ENTER key then the ID key. The ident function will operate for approx 18 seconds.
The ID key (Ident) when pressed, adds additional code information to the transmission for ATC. The code will flash on the ATC display as a means of uniquely identifying the aircraft’s code from any other.

The ID key only needs to be pressed briefly to activate the ident function.
Ident data is also added to the ADS-B message to ensure that the ident function is transmitted in all modes.

ADSB In
The T2000ADBS-IO (not the T2000ADSB) includes a receiver and software for processing ADSB out messages from surrounding aircraft to enhance a pilots ability to see and avoid. To view the traffic output the pilot connects their favorite EFB app that supports GDL90 data over WiFi.

On your tablet or phone go to setting and then WiFi

Look for T2000ADSB and connect. There is no password required.
Open your EFB app and follow its manufacturers instructions for connecting to a GDL90 traffic source.

Example traffic views (ForeFlight app)

FIRMWARE UPDATING

The T2000ADSB can be updated to the latest available firmware using the T2000ADSB companion application available for both iPhones and Android phones.

Download the mobile app
Ensure you are connected to the internet. Follow the following links to download the app or search for T2000ADSB.

Connect to the T2000ADSB

Ensure the aircraft has power and the T2000ADSB is powered.

Ensure the aircraft logic is “on the ground” and that the SelectMode switch is set to STNBY
Note: the T2000 uses either GPS speed or a wired discrete input to determine its Air/Gnd logic. Please refer to the installation manual for more information. If GPS speed is used then the aircraft needs to be receiving a clear GPS signal.
Open the app, read and accept the user license and then tap the ”Connect” button.

The app will then search for all T2000ADSBs nearby and display the Serial Numbers of those found.
Note: when upgrading from version 1.0.2 or earlier firmware the serial number may be displayed as N/A or T2000.
Select your devices Serial Number by clicking on the number.

Data Page
This page shows a range of useful information whilst in flight including:

Pressure altitude
GPS position, true track and ground speed

UTC time

From this screen you can also control the T2000ADSB. You can set:

Mode A Code

Flight ID (usually your registration. Refer to the T2000ADSBInstallation manual for more information)
The QNH reference for the Pressure Altimeter
Assigned Altitude (if you want to use the altitude alert functionality)
Note: if the app detects that firmware older than 1.0.3 is installed it will automatically go to the Firmware Update page after about 10 seconds.

Setup Page
Click the menu TriBar (1) and then Setup (2).
Note: This page is only accessible on the ground and when the transponder is in standby.

This page allows you to configure the most common setup parameters of the T2000ADSB. Please refer to the installation manual for a detailed description of each parameter.
Click “Check FW” to enter the Firmware Update page.

Firmware Update page
When the Firmware Update page opens it goes to the Microair Avionics servers and identifies the latest firmware package for each of the three updatable processors inside the T2000ADSB.
The column labled “Latest” shows what is available to be installed and the column “Installed” shows what is actually installed. Note: for firmware version 1.0.2 or earlier the “Installed” version may not be shown. If after 10 seconds it is not shown you may proceed with the update”
Press the “Update FW” button and read the warning and once you are ready press the “Continue” button.
The T2000ADSB companion app will now download the required firmware packages and start to transfer and install them on the T2000ADSB. The status bar on the app, and the FwUpdate status on the T2000ADSB screen will show you the updates progress. Typically the DA and GPS take around 7 minutes each and the MB around 3 minutes.
The T2000ADSB may restart one or more times during the update.

Note: for firmware version 1.0.2 or earlier the T2000ADSB screen may show random characters and appear to stop working. This is normal behavior and will be recovered at the end of the update of the first firmware package.
Note: for firmware version 1.0.2 or earlier the T2000ADSB Firmware Update might on rare occasions stall. If the % complete doesn’t change for more than about 30 seconds or the screen shows “Pls Wait” for more than 60 seconds then cycle the power to the T2000ADSB and close and restart the app.

ERROR MESSAGES

The T2000ADSB monitors a number of internal and external functions, and will display warnings if potential problems are detected.

This message is displayed if the altitude encoder cannot be detected. The pilot can acknowledge the message by pressing the ENTER key. If the fault remains the error message will display again in 5 minutes. The T2000ADSB will remain in mode A.
This message is displayed if the GPS cannot be detected.

FREQUENTLY ASKED QUESTIONS:

The following questions are common to most users and may help you understand the operation of the T2000ADSB, some of these are explained in the user manual but may have been missed by the reader:

Q. When I am asked to Sqwawk Ident ( ID ) the I indicator stays on for a long time. Why ???
The I or ident character, is used to denote that the transponder reply now includes the ident information, to make the return flash on the ATC display. The ident will stay on for 18 seconds before returning to normal operation.

When asked to go to mode C from mode A, the altitude does not appear on the ground station for some time, perhaps as long as 8 minutes, is this normal?
Yes if the external encoder has a warmup time. The T2000ADSB internal altimeter has no warmup time. We recommend using the internal encoder where power conservation (Gliders etc) is essential.
Whilst flying outside normal radar coverage I have noticed that the reply symbol still flashes from time to time – what causes this?
Other aircraft fitted with TCAS systems can still interrogate transponder equipped aircraft like yours. This then lets them know where you are, and your contact information is displayed on their TCAS screens. The TCAS aircraft could be 100+ miles away and at altitudes +30,000ft!
What is the NIC value ?
ADS-B operation require a very accurate GPS as a source of position data. The GPS must also be very reliable, to be able to provide this data when required. The combination of accuracy and reliability are termed integrity. The NIC value is a measure of the GPS integrity.

Why does the ground track vary from the aircraft’s compass heading and airspeed ?
The ground track represents the path the aircraft is traveling across the ground. This track is influenced by the effect of the wind component. A crosswind component can make the ground track bearing vary considerably from the compass heading. A headwind or tailwind can make the ground track speed vary higher or lower than the indicated airspeed.
Why is there a flight ID and an aircraft ID, if they are both the same

The ICAO CODE is a unique code for every registered aircraft in the world. The code is a 24 digit binary (1’s and 0’s) number but for ease of communication and entry the ICAO CODE is usually expressed as a hex-decimal number, which uses the digits 0-9 and letters A-E.
Aircraft owners or operators can contact their civil aviation authority to be advised of the ICAO CODE for their aircraft’s registration.

LIMITED WARRANTY

The warranty period for any Microair Avionics manufactured article is dependent on Condition of the article at time of sale and the Purchase Date.
For New Articles the warranty period commences from Date of Purchase and is valid for 12 months or the minimum period defined by applicable consumer law, whichever is the longer. In the absence of original Proof of Purchase, the warranty will be valid for 12 months from Date of Factory Shipment as determined by Microair Avionics.
For Factory Reconditioned Articles offered for sale, the warranty period commences from Date of Purchase and is valid for 12 months.
For Factory Exchanged Articles the warranty period commences from the Date of Purchase of the original article and is valid for the remainder of the original warranty period.

For Repaired Articles the warranty period commences from the date of Factory Shipment and is valid for 6 months for the original defect only.
Microair Avionics will, at its sole discretion, repair or replace any components, which fail in normal use. Such repairs or replacement will be made at no charge to the customer for parts or labour. The customer shall be responsible for any transportation costs for return of this product to Microair Pty Ltd or an approved
Microair Service Centre.

This warranty does not cover failures due to abuse, misuse, accident, unauthorised alteration, or repairs carried out by parties other than Microair Avionics or an approved Microair Avionics Service Centre. This warranty does not cover failures where the product has not been installed or operated, in accordance with the
provisions of the User and Installation manual(s).
It shall be at Microair Avionics sole discretion to decide if a defect is a result of material or workmanship failure.

THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED, INCLUDING ANY LIABILITY ARISING UNDER WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, STATUARY OR
OTHERWISE. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, WHICH MAY VARY FROM STATE TO STATE, AND COUNTRY TO COUNTRY.
IN NO EVENT SHALL MICROAIR AVIONICS PTY LTD BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, WHETHER RESULTING FROM THE USE, MISUSE OR INABILITY TO USE THIS

PRODUCT OR FROM DEFECTS IN THE PRODUCT.
Microair Avionics may at its discretion, refer product returns for repair or service, to a service facility closest to you. Microair Avionics reserves the right to repair or replace the product or software or offer a full refund of the purchase price at its sole discretion.
To obtain warranty service, please email or call Microair Avionics in Australia. Domestic or International Return instructions are available on our website. Please follow these instructions carefully.

Phone: +61 7 4160 8200
Email: support@microair.aero
Website: www.microair.aero

Documents / Resources

Microair Avionics T2000ADSB Upgrade to ADSB for Better Visibility [pdf] User Manual
T2000ADSB Upgrade to ADSB for Better Visibility, T2000ADSB, Upgrade to ADSB for Better Visibility, ADSB for Better Visibility, Better Visibility, Visibility

References

User Manual

Microair Avionics T2000ADSB Upgrade to ADSB for Better Visibility

Product Information

Product Usage Instructions