Installation manual
AMX240 Audio Panel Installation Manual
200-890-0240 Rev. 02
3.4 —TEL—for more details)
The copilot will also be able to transmit on the other selected radio with his PTT as well.
3.2.1.1 Split Mode
The split mode can be activated at any time by pressing the SPLIT button. This places the pilot on MIC 1 and the
Copilot on MIC 2.
Pilot on MIC 2 and Copilot on MIC 1 is not possible.
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 bleed-over in the Split mode, particularly on adjacent frequencies. Avidyne makes
no warranty about the suitability of Split Mode in all aircraft conditions.
The pilot shall hear other selected navaid and unswitched audio; the copilot shall only hear COM 2 and unswitched
audio.
When the Split mode is active, the intercom shall enter the ISO mode. In SPLIT mode, no LED arc segments are lit.
Pressing ISOL shall re-enable intercom for CREW during SPLIT mode and shall light up appropriate segments.
To exit the split mode, push MIC 1 or MIC 2 as desired to put both crewmembers on the desired transceiver.
3.2.1.2 Swap Mode (Switch from MIC 1 to MIC 2 remotely)
With a yoke mounted, normally open momentary switch, the pilot can change from the current COM transceiver to
the other by depressing this switch. To cancel "Swap Mode," the pilot may either press the yoke mounted switch
again, or select a different COM with the MIC buttons.
3.2.2 Transceiver MONitor (6)
MON 1 and MON 2 buttons allows the crew to listen to the standby frequency in the Avidyne #1 or #2 R9 IFDs.
Alternatively, MON1 and MON2 can be used to listen to DME and/or ADF audio.
3.3 NAV Audio Selector (6)
Navigation receiver audio is selected through four momentary, push-button, backlit switches.
The users can identify which receivers are selected by noting which switches are green. Navigation aid audio push
buttons are labeled NAV 1, NAV 2, and MKR (Marker). When one of these buttons is pressed, the mode is active,
and the LED will illuminate. Press the switch again and it will be "off" and remove that receiver from the audio out-
put.
In SPLIT mode, only the pilot will hear selected navigation audio.
3.4 Telephone (TEL) (5)
The TEL mode ( ) serves as a full duplex interface and distribution for telephone systems such as portable cellular
phones with earpiece jacks, and Bluetooth® enabled telephones. Pressing the ( ) button activates the telephone
mode.
This connects the telephone to the users as follows:
In ALL intercom mode, all crew and passengers will be heard on the phone when they speak. COM and other se-
lected radio audio is also heard in the headsets. If the pilot or copilot pushes the radio PTT, their mic will be trans-
ferred to the selected COM radio. The telephone party will not hear ATC communications, and vice versa.
In CREW mode, only the pilot and copilot are connected to the telephone. Passengers will not hear the telephone.
The pilot and copilot will also have transmit capability on the other selected transceiver.
In ISO intercom mode, when the AMX240 is in the TEL mode, the pilot position is in the "Phone Booth." Only the
pilot will hear the telephone, and only he will be heard. He will also have access to COM 1 or 2, and will transmit on
that radio using the PTT. All selected audio is provided to the pilot.
NOTE
Because the cell-phone uses an intercom circuit, all stations on that circuit will lose intercom capability when the
cell phone is in use.