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Summary of Contents for MGL Avionics V16
- Page 1 MGL Avionics V16 Aviation band transceiver User and Installation manual...
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Page 2: Table Of Contents
Pinout for 3.18” Razor and 2.25” Vega transceiver control head.........16 V16 with one or more control heads..................17 V16 with a MGL Avionics EFIS system.................17 V16 plus N16 Navigation receiver..................17 V16 plus N16 with one or more control heads..............17 Electrical state interfaces......................18 PTT inputs..........................18 Intercom Switch/Playback switch..................18 TX Interlock...........................18... - Page 3 Adjusting microphone levels....................23 Mechanical dimensions......................25 Materials ..........................25...
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Page 4: Rf Exposure
OPERATE THE EQUIPMENT. Industry Canada approval notes If this device is intended to be operated on board an aircraft, the V16 transceiver shall only be operated in accordance with Regulation by Reference RBR-1, Technical Requirements for the Operation of Mobile Stations in the Aeronautical Service, as issued by the Minister of Industry. -
Page 5: The Transmitter
control heads and/or control by an EFIS system. The Transmitter The transmitter is designed to deliver a 10W un-modulated carrier into a 50 ohm matched antenna load. Modulation is controlled fully digitally to achieve to 70% modulation index by means of asymmetric gain control of the modulating audio signal. This permits ideal use of available carrier power while providing a very power efficient transmitter with low heat generation, while at the same time maximizing range. -
Page 6: The Intercom System
Note that despite this the actual sensitivity of your V16 may still be reduced by interference. The impulse noise suppressor however helps greatly in removing the audible effects of this interference. -
Page 7: Power Supply
Note: If squelch is open all the time (squelch value “0”) no recording takes place. Power supply The V16 airband transceiver is designed to be operated on a typical 12V DC aircraft power system. The DC supply must be free of undesired transients and reasonably stable within the acceptable supply voltage range of the V16. -
Page 8: Specification Table
FCC Part 87 Aviation Services (airborne and fixed ground stations) FCC Part 15 radiated emissions With reference to: ICAO Annex 10 as amended. Specification table General specifications Compliance ETSO 2C169a Class C, E, H1, H2, 4, 6, ETSO 2C128, TSO C169a Class C, E, 4, 6, TSO C128a FCC Identification 2ANEFV16 Documents... -
Page 9: Audio Input Specifications
RX Large signal +9dbm @127Mhz, off-channel blockers >+15dbm RX audio Less than -50db referred to 30% modulated carrier typical up to large unwanted signals signal limit. including distortion products Adjacent channel >80db typical suppression LO leakage into <-100dbm antenna connector RX bandwidths 21Khz @ 25Khz spacing, 7.6 Khz @ 8.33Khz spacing (offset carrier possible on either 25Khz or 8.33Khz according to ICAO... -
Page 10: Audio, Rx And Tx Filters
Volume control range 32 steps of 3db each. Total control range = 96db. Notes: V16 can be operated with RX and Intercom volume set as one or these can be spit into separate volume controls. This depends on the corrected heads or control system. -
Page 11: Transmitter Low Power Option
Maximum total power derating is 50%, i.e. 5W unmodulated carrier at 13.8V DC supply. Transmitter low power option For applications not requiring nominal TX power it is possible to select to reduce carrier power by 50% (5W unmodulated carrier). This reduces electrical power consumption during TX by approximately 40%. This option may also be helpful in compromised installations to reduce RF feedback issues during TX. - Page 12 Operational Shocks Equipment Category B Crash Safety Equipment Category B Type 5 Vibration Aircraft zone 2; type 3, 4, 5 to category S level M, type 1 (Helicopters) to category U level G Explosion Equipment identified as Category X – no test required Waterproofness 10.0 Equipment identified as Category X...
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Page 13: V16 Connector Pinout
Voltage rises from 0 to about 2.0V at any rate and then the rise time to about 3.6V is very slow (in the region of greater than about 0.5 seconds) the V16 will enter self protection mode which will only be released when voltage drops again below 2.0V. -
Page 14: Typical Connection Diagrams
PTT and intercom switch ground PTT PAX Intercom switch or RX audio playback (selected by configuration) TX Interlock - connect to corresponding pin on second V16 transceiver Auxiliary audio ground Auxiliary audio input (Music, EFIS, mobile phone etc) Programming pin. Leave this pin unconnected... -
Page 15: Audio Signal Wiring Advice
headsets. In this example, two PTT switches are used. If the Pilot PTT is activated, only the pilot voice is transmitted and the passenger voice is muted. If the passenger PTT is activated, only the passenger voice is transmitted and the pilot is muted. -
Page 16: Control Heads And Options
The V16 transceiver module must be connected to at least one controller. It is possible to operate the V16 without a control head if one has been used to setup volume and other settings. In this case only a single frequency is used (setup by the control head). All settings are stored in the V16 and maintained. -
Page 17: V16 With One Or More Control Heads
Note: It is possible to connect a V16 to the EFIS and at the same time to one or more control heads via the CAN bus. -
Page 18: Electrical State Interfaces
1 acts as a Garmin NAV/COM compatible communications port. Note: This also works if the V16 and N16 is connected to an MGL EFIS via the V16 RS232 port number one at the same time. Electrical state interfaces PTT inputs PTT inputs are realized as active low digital inputs with internal 2200 ohm pull up resistor to 3.3 Volts feeding the base of a transistor via a 10.000 ohm resistor. -
Page 19: Tx Signal Delay
One of the prime causes of RF feedback is a badly matched antenna. Your V16 contains a full feature SWR meter which you can use to check your antenna tune. Please ensure that SWR measured at three frequencies (118, 127 and 136 MHZ are good choices) is less than 1.3 if... -
Page 20: Menu Items
The list here shows all the available menu items and typical texts you can expect and explains the settings. Your controller will provide a means to activate the menu. Typically this would be pushing a button or some action on a touch screen or similar. Menu items VOX Level: 5 Set the level of the VOX intercom microphone... -
Page 21: Can Bus Addressing
Allows you to set all settings to factory default after confirming the choice. CAN bus addressing The CAN bus can accept one or two V16 transceivers. These need to be identified as either COM1 or COM2. You perform this selection in the setup menu. -
Page 22: Vswr Antenna Checks And Tuning
An antenna with an ideal behavior will look like a 50 ohm resistor to the V16. This results in a VSWR reading of 1.0 which means no power is reflected. -
Page 23: Reasons For A Bad Vswr
Your transmitter is designed to operate at full power up to an VSWR of 4.0 – above this the transmitter will start reducing power to protect itself. The maximum power reduction is 50%. If your V16 is set to 5W TX power then no power reduction takes place as the transmitter will survive even a very bad mismatch. - Page 24 somewhere in the midrange depending on the noise level in your aircraft and the noise canceling properties of your microphone. The reason this works is that the transmitter employs automatic gain control to ensure that your carrier is always correctly modulated to achieve maximum range and clarity. When you press PTT and listen to your side tone –...
- Page 25 Mechanical dimensions 88.000 4.000 7.000 149.402 161.402 Dimensions +/- 0.25mm tolerance 64.992 141.402 29.250 30.109 165.402 Materials Body: Aluminum extrusion Flanges: Stainless Steel, 1mm, Fasteners Stainless Steel. Labels: Vinyl...
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