trig TMA45 Manual de usuario
TMA45 Audio Panel
Operating Manual
01851-00-AA
27 Mar 2018
Trig Avionics Limited
Heriot Watt Research Park
Riccarton, Edinburgh
EH14 4AP
Scotland, UK
© Copyright 2018
EN / DE / FR
EN
1
Front Panel
Power On and Fail-Safe Operation
The audio panel is turned on and off by pressing the volume control knob
(smaller, inner knob on left side of unit).
When the system is turned off or if power is removed the audio panel will be
placed in the fail-safe mode. In the off or fail-safe mode, the pilot is
connected directly to Com 1 and to unswitched input 1, allowing transmit,
receive and alert capability regardless of audio panel condition.
The fail-safe audio will only be heard in the left ear of a stereo headset.
Transmitter Selection
To select a radio for transmission, press either the XMT1 or the XMT2 button;
the green indicator lamp above the button will light up, indicating which radio
you will transmit on. The corresponding COM1 or COM2 indicator will also
light up; you always hear the audio from the transceiver that is selected for
transmit.
Both pilots can transmit on the selected radio, but only the person who presses
their Push-To-Talk switch will be heard over the aircraft radio.
Receiver Selection
To listen to both radios press the COM1 or COM2 button as required to
enable the second radio. Both radios will remain selected until one is
manually deselected.
Navigation Audio Selection
The MKR, NAV1, NAV2, DME and ADF buttons select the switched navigation
receivers. Press once to turn on the corresponding source, press again to turn
EN
2
it off; a green lamp above the button will light indicating which audio source is
selected.
The DME input, if present, is shared with AUX.
Cockpit Speaker
This button will place all selected audio on the cockpit speaker when active.
Note: In Split mode (see below), the speaker carries the same audio
as the pilot.
To help reduce power consumption and internal heat build-up in the avionics
stack, switch off the speaker when not in use.
Swap Mode
The optional Swap button, usually mounted on the control yoke, switches
between the Com transmitters without having to reach for the audio panel.
Pressing the Swap button has exactly the same effect as switching between
XMT1 and XMT2 on the audio panel.
Split Mode
Pressing both XMT1 and XMT2 buttons at the same time puts the TMA45 into
Split mode; all four COM and XMT indicators will light up. This connects the
pilot to Com 1 and the co-pilot to Com 2, and they can use their respective
radios independently. The passengers will not hear the radios or crew
intercom in Split mode.
Press either XMT button to exit Split mode.
It is not possible to place the pilot on Com 2 and the co-pilot on Com 1.
In Split mode, only the pilot will hear the selected navigation audio.
An example of this feature is when the pilot may want to talk to Air Traffic
Control, while the co-pilot may be speaking to ground handling agents.
Note: Due to the nature of VHF communications signals, and the
size constraints in general aviation aircraft, it is probable that there
will be some transmission bleedover in Split Mode, particularly on
adjacent frequencies. Split Mode may not be suitable in all aircraft
conditions.
Intercom Volume
Turning the smaller volume control knob on the left side of the audio panel
adjusts the loudness of the intercom for the pilot and co-pilot. It has no effect
on selected radio levels, music input levels or passengers' volume level.
Turning the larger, outer volume control knob on the left side of the audio
panel adjusts the intercom volume for the passengers. It has no effect on radio
or music levels.
EN
3
Trig Digital Noise Reduction
The TMA45 provides an automatic VOX squelch control (TDNR). Each
microphone input is monitored through a digital processor and opens instantly
when human speech is detected. This results in seamless conversations aboard
the airplane for crew and passengers, without syllable clipping or fatigue-
inducing noise.
No manual control or field adjustment is required.
The system is designed to block continuous tones, therefore people humming
or whistling in monotone may be blocked after a few moments.
For consistent performance, any headset microphone must be placed within
¼-inch of the lips, preferably against them. It is important to have the
microphone element parallel to the mouth, and not twisted inside the cover.
You should also keep the microphone out of a direct wind; moving your head
through an air stream may cause the TDNR to open momentarily.
The TDNR is designed to work with normal aircraft cabin noise levels (70 dB
and above), therefore it may not always recognize speech and clip syllables in
a quiet area, such as in the hangar, or when the engine is not running.
Intercom Modes
The Intercom (I/C) button is a 3-function mode selector that allows the pilot
to tailor the intercom function to best meet the situation; it cycles through the
following intercom modes, from top to bottom.
PILOT: The pilot is isolated from the intercom and is connected only
to the aircraft radios. Co-pilot and passengers will hear the intercom
and Music 1, but not the aircraft radio receptions or pilot
transmissions.
ALL: All parties will hear the aircraft radios, intercom and Music 1.
CREW: Pilot and co-pilot are connected on one intercom channel
and have exclusive access to the aircraft radios. They may also listen
to Music 1. Passengers can continue to communicate amongst
themselves without interrupting the crew and may listen to Music 2.
When in Split mode, the ALL intercom mode is not available and pressing the
Intercom button will cycle between PILOT and CREW modes.
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4
Intercom Mode Table
Mode Pilot Hears Co-pilot Hears Passengers
Hear
Comments
Pilot Radios
Sidetone
Passengers
Music 1
Co-pilot
Passengers
Music 1
This mode allows the pilot to
communicate with air traffic
control without the co-pilot or
passengers hearing the
conversation. Co-pilot and
passengers can continue to talk
and listen to music.
All Radios
Sidetone
Co-pilot
Passengers
Music 1
Radios
Sidetone
Pilot
Passengers
Music 1
Radios
Sidetone
Pilot
Co-pilot
Passengers
Music 1
This mode allows all on board
to hear radio reception as well
as communicate on the
intercom.
Crew Radios
Sidetone
Co-pilot
Music 1
Radios
Sidetone
Pilot
Music 1
Passengers
Music 2
A second music source is
automatically enabled for the
passengers.
Trig Active Mute
Trig Active Mute, when enabled, will automatically decrease the music volume
during any voice communication and gradually restore it to its original level
after communications are complete.
Music source 1 (Music 1 input, front panel jack or Bluetooth streaming) has
three muting modes, which are cycled through by pressing the Mute button
and announced in the headset as they are activated.
Radio Mute: aircraft radio activity mutes the music
Mute on: radio and intercom mute the music
Mute off: nothing interrupts the music
Music 2 has muting on or off, and can be controlled only if your installation
includes an external switch.
EN
5
Monitor Mode
Press and hold COM2 for more than two seconds to activate and deactivate
Monitor mode; an audio annunciation will report changes to the Monitor
mode status.
In Monitor mode, the audio from the radio selected for transmit will mute the
other Com radio.
For example, if Com 1 is selected to transmit to Air Traffic Control and Com 2
is receiving weather information, the audio from the weather will be muted
while Air Traffic Control is transmitting.
When Monitor mode is on, the indicator lamp of the radio selected for receive
only will blink every three seconds.
Monitor mode is not available in Split mode and is defaulted to off when the
audio panel is turned on.
Telephone Mode
The Telephone mode serves as a full duplex interface and distribution for
telephone systems such as mobile phones with earpiece jacks or Bluetooth
connectivity.
Pressing the Telephone button connects the telephone to the users as follows:
In PILOT intercom mode, only the pilot will hear the telephone, and
only they will be heard. No telephone sidetone can be created in
PILOT Mode; selecting PILOT mode during a call will cause the
sidetone, if present, to disappear.
In ALL intercom mode, all crew and passengers will hear and be heard
on the phone when they speak.
In CREW intercom mode, only the pilot and co-pilot are connected
to the telephone, passengers will not hear or be heard on the call.
Com and other selected radio audio is also heard in the headsets as specified
by the Intercom mode. The radio PTT will switch the microphone output to the
selected radio and allow continued aircraft communication. The telephone
party will not hear Com radio communications, and vice versa.
A phone call can only be initiated from the phone itself.
In cases where the mobile phone doesn’t provide sidetone, the audio panel
can be configured, by holding the TEL button for more than one second, to
create sidetone for you.
Trig recommends the use of mobile devices in a way that maintains safe flight
operations and good airmanship at all times.
Bluetooth®
A Bluetooth-enabled mobile phone must first be paired with the TMA45
before it can be used wirelessly for making calls or streaming music.
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Activate the “seek device” function on the mobile phone, and then enter the
access code “0000” (if required) when the phone detects the TMA45 on the
list of available devices. This process must be repeated for any phone to be
used, and only one mobile phone can be paired with the TMA45 at any one
time.
A second Bluetooth-enabled device can be used to stream music, but it must
be paired and connected after the mobile phone.
If a paired device fails to reconnect, the Bluetooth interface can be reset by
holding both the DME and ADF buttons while the TMA45 is powered on; a
“Bluetooth reset” annunciation will be heard in the headphones. The device
must then be paired again.
Utility Jack
The 2.5 millimetre (3/32”) jack on the front of the TMA45 has three distinct
functions: mobile phone interface, music input and priority advisory audio
input.
A mobile phone can be connected to the TMA45 via the front panel
jack using a phone-specific adapter cord; the mobile phone is added
to the intercom loop by pressing the Telephone button. Regardless
of the Telephone mode setting, the telephone ringer audio will be
heard in the intercom if it is present on the telephone’s output
(ringer may be muted by radio and intercom).
The utility jack can be used as stereo music input by using an
appropriate adaptor cord and will be treated as Music 1. Please note
that the adapter cord needed for music input is different from the
one for mobile phone input.
When an audio signal is actively playing on Music 1 through the rear
connector or via Bluetooth, the front jack automatically becomes a
priority advisory input that is not muted by radio or intercom. It will
be heard by all parties regardless of the Intercom mode and may be
used for auxiliary systems such as a GPS terrain advisory or portable
traffic watch system.
Marker Beacon Receiver
The marker beacon receiver uses visual and audio indicators to alert you when
the aircraft passes over a 75 MHz beacon transmitter.
The marker beacon audio can be enabled and disabled by pressing the MKR
button. A green lamp to the right of the button will light when the audio is
enabled.
EN
7
The blue outer marker lamp has an associated 400 hertz 'dash' tone.
The lamp and tone are keyed at a rate of two per second when the
aircraft is in the range of the outer marker.
The amber middle marker lamp is coupled with a 1300 hertz tone,
keyed alternately with short 'dot' and long 'dash' bursts at 95
combinations per minute.
The white inner marker lamp has a 3000 hertz 'dot' tone. The lamp
and tone are keyed at a rate of six times per second.
The sensitivity (SENS) button can be used to change the marker beacon
receiver sensitivity to high or low. Use HI sensitivity only when navigating
using fan markers on airways. For normal ILS marker beacons the sensitivity
should always be set to LO.
Holding the SENS button for one second illuminates all three lamps
simultaneously to assure the lamps (internal and external) are in working
order. It will also cause the marker audio to mute for that beacon; the next
beacon received will reactivate the audio. Releasing the SENS button restores
the last sensitivity.
DE
8
Bedienelemente
Power und Fail-Safe Modus
Der Strom des Gerätes wird durch Drücken des Lautstärkereglers ein- und
ausgeschaltet (der kleinere, innere Knopf an der linken Seite der Anlage).
Wenn der S`trom ausgefallen ist oder sich ausgeschaltet hat, wechselt die
Aufschaltanlage in Fail-Safe Modus.
In diesem Modus ist der Pilot direkt an Com 1 und ungeschalteten Input #1
angeschlossen, welches der Aufschaltanlage ermöglicht - gleich in welchem
Zustand - senden und empfangen zu können.
Das ausfallsichere Audio wird nur im linken Ohr von Stereo-Kopfhörern
gehört.
Senderauswahl
Drücken Sie entweder XMT1 oder XMT2, um ein Funkgerät auszuwählen. Das
grüne Anzeigelämpchen oberhalb der Taste wird aufleuchten, welches Ihnen
anzeigt, auf welchem Funk Sie senden. Das entsprechende Anzeigelämpchen
wird auch aufleuchten – man hört immer das Audio vom Empfänger, der
früher ausgewählt wurde.
Beide Piloten können über das ausgewählte Funkgerät übertragen, aber nur
die Person, die den Push-to-Talk Schalter aktiviert, wird im Flugfunk gehört.
Empfängerauswahl
Beide Funkgeräte können gleichzeitig gehört sein. Drücken Sie entweder Com
1 oder Com 2 nach Bedarf, um das zweite Funk zu aktivieren. Beide Geräte
werden solange gehört bis eins manuell deaktiviert wird.
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