Rainbow Aircraft V6 AVIATION VHF AM TRANSCEIVER User Manual V6 Transceiver Manual 2011 09 20

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Document Title	V6 Transceiver Manual - 2011-09-20
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MGL Avionics
VHF Airband Transceiver
Model V6
User & Installation Manual
PRELIMINARY - 9/2011
General
Please read this manual before operating the V6 Transceiver
Please include this manual if ownership of the V6 Transceiver changes
Operational limitations, conditions and restrictions
Do not operate this unit outside of its specified temperature range – this may
result in malfunction or damage to the unit.
Observe the installation wiring diagrams. Incorrect wiring may damage this unit.
Never operate this unit outside of its specified voltage range. Doing so may
cause serious damage to this unit. At all times ensure that no reverse polarity
power is applied to this unit. Reverse polarity will destroy this unit.
This Transceiver is designed to withstand the possible power surges that may
occur in a correctly wired power supply system of a typical aircraft. For this
reason the Transceiver may be left switched on when engines are started.
Please note that the supply voltage may drop below minimum operating voltage
during engine cranking. During this time operation of the radio will not be
possible.
Do not operate the transmitter of this unit without connecting a correctly adjusted
antenna. Doing so may result in damage to the unit.
The V6 Transceiver is not FAA type certified. This unit may only be used in
aircraft where such a unit is permitted under local rules. Typically these rules
permit operation in non-type certified aircraft such as home built and
experimental or sport category aircraft. Limitations may exist on maximum
altitudes above which a non-certified airband Transceiver may not be operated.
Please check local rules with the relevant authorities.
Use of this radio may be subject to a radio station license. Please contact the
local radio frequency spectrum governing body (such as the FCC) to inquire as
to the procedures required to obtain a radio station license.
Operation of this Transceiver may only be allowed by persons holding a valid
radio license (restricted or full).
Please do not operate this Transceiver illegally.
Please do not operate this Transceiver in an environment or in conditions where
its transmissions may cause interference to other electronic equipment or
systems.
Never operate an airband radio without the required qualifications to do so.
Never cause a nuisance to aircraft on the ground or in the air by misuse of this
Transceiver in any way.
Never compromise the safety of other aircraft with lengthy transmissions. Keep
transmissions short and to the point following established air to air and air to
ground rules and procedures.
Table of Contents
General.................................................................................................................2
Operational limitations, conditions and restrictions...........................................2
The V6 Panel........................................................................................................4
The V6 controls.....................................................................................................5
The “VOL/SQ” control.......................................................................................5
The “ACTIVE” button........................................................................................6
The “FREQUENCY” control..............................................................................6
Setting frequencies.......................................................................................7
Changing channels.......................................................................................7
RX/TX bargraph...........................................................................................8
The 'MENU” button...........................................................................................9
Menu structure.............................................................................................9
First level menu...............................................................................................11
Ambient noise suppression.........................................................................11
Program channels......................................................................................12
Contrast......................................................................................................12
Microphone level........................................................................................13
Microphone bandpass filter........................................................................13
PTT Mode...................................................................................................14
Auxiliary input level.....................................................................................14
Scanning state at power up........................................................................14
Setup .........................................................................................................14
Second level menu.........................................................................................15
TX MIC VOX / TX MIC HOT.......................................................................15
TX LOCK ON / TX LOCK OFF...................................................................15
P-scan ON / P-scan OFF............................................................................15
Direct FS / Flip-Flop FS..............................................................................16
1 MIC Level / 4 MIC Level..........................................................................16
CHANNEL spacing.....................................................................................16
Default........................................................................................................16
Installation...........................................................................................................17
General installation notes ..........................................................................17
Planning..........................................................................................................18
DB-25 connector pin out.................................................................................19
Principal wiring diagrams................................................................................20
Single Transceiver installation........................................................................20
Specifications – Subject to change without notification......................................22
Physical......................................................................................................22
Transmitter.................................................................................................22
Receiver.....................................................................................................22
Other..........................................................................................................23
Power.........................................................................................................23
FCC Statement...................................................................................................23
REFERENCE......................................................................................................24
The V6 Panel
ACTIVE button. Pressing this
button exchanges active and
standby frequencies.
NB: holding this button down
enables further functions
MENU button. Press this button
to enter the menus. There are
many adjustments and setup
options
The current
active
frequency
The current
standby
frequency
VOL/SQ control. This
provides adjustment of
VOLUME. Pressing the
knob inwards selects
SQUELCH adjustment.
Holding this knob down
enables further functions
Status bar showing volume level,
voltage or transmitter temperature
and frequency selection mode
FREQUENCY control. This
provides adjustment of
operating FREQUENCY or
CHANNEL. In MHZ/KHZ
mode pressing this knob
inwards selects between MHZ
and KHZ entry. Holding this
knob down for 2 seconds
changes between MHZ/KHZ
and CHannel entry.
The above graphic shows the V6 Transceiver in a default configuration with “FlipFlop” frequency selection. The V6 Transceiver can be operated in other modes
depending on setup and installation.
The V6 controls
The “VOL/SQ” control
Rotating the control knob will adjust headset volume. The Transceiver defaults to
volume adjustment. The display will change to a large bargraph and number
indicating volume level.
Pressing the knob inwards momentarily will switch to squelch adjustment (with a
bargraph display and number) for setting a suitable squelch level.
Adjust the squelch level such that static noise from the receiver is just
'squelched' out. Too high an adjustment may result in weaker transmissions not
being received. Too low an adjustment may result in static noise breaking though
at times.
NB: Pressing the VOL/SQ knob is also used for a quick receiver check: Press
the knob to show the squelch level and then again to return to show the volume
level. This will open the squelch for about two seconds regardless of the squelch
setting for a receiver 'static' test (an indication that the receiver is working).
Holding the VOL/SQ knob down for 1 second will reduce the volume level of the
Radio only. This will allow easy conversation over the Intercom in the presence
of heavy radio traffic. While 'MUTED' the screen flashes every five seconds.
The Radio volume may be returned to normal by again holding the knob down
for 1 second.
The “ACTIVE” button
With a default setup, the display shows two frequencies – active and standby.
When the ACTIVE button is pressed, the standby frequency becomes the active
frequency and the active frequency becomes the standby frequency.
NB: Holding down the ACTIVE button for 1 second will enable or disable
scanning (active and standby frequencies are scanned rapidly for incoming
transmissions). Scanning is indicated by alternate flashing of the ACTIVE and
STANDBY annunciators on the display.
A short burst of beeps gives an audible indication as scanning is activating or
deactivating so that it is not necessary to look at the display. Three beeps
indicate scanning has been enabled and two beeps that it has been disabled.
With scanning enabled, it is also possible to receive on the standby frequency.
NB: Holding down this button for three seconds will
automatically set the active frequency to the emergency channel
on 121.500 MHz.
It is possible for the Transceiver to operate with direct frequency entry. This
configuration may be selected in the second level of the Menu system. Only a
single frequency is shown on the display - the active frequency. This frequency is
changed directly. There is no standby frequency and no scanning is possible.
The “FREQUENCY” control
This rotary control is used to set the operating frequency of the Transceiver. The
setting acts on the standby frequency (or the active frequency if direct frequency
entry is being used).
A frequency is set on the V6 Transceiver either by entering MHZ/KHZ or by
selecting a memory Channel. Holding the FREQUENCY knob down for two
seconds changes from one to the other.
An indication of whether the Transceiver operating frequency is to be set by
MHZ/KHZ or CHanneL selection is shown on the display as indicated.
The spacing between frequencies may be in steps of 25KHz or 8.33KHz. This is
set in the second level Menu. A 'speed-up' function is provided for the
FREQUENCY knob so that a new frequency or channel may be set up very
quickly and easily.
Setting frequencies
With the method of frequency entry set to MHZ/KHZ a frequency is set by
pressing the FREQUENCY knob inwards momentarily until the desired part of
the frequency entry is flashing on the display: The graphic below shows “set
MHZ” (in default mode):
While the desired part of the entry is flashing, the setting may be changed by
rotating the knob.
NB: KHZ rolls over without changing the MHZ value. Thus for example,
increasing KHZ will change from a frequency display of 124.975 to 124.00.
Likewise, decreasing KHZ from 124.000 will change the setting to 124.975. This
may be used to speed up KHZ selection.
Pressing the FREQUENCY knob briefly switches between MHZ and KHZ entry.
Changing channels
Switch to memory CHanneL entry by holding down the FREQUENCY knob for
two seconds. Memory Channels may then be selected by rotating the knob
NB: Channel selection rolls over from 100 to 1 or from 1 to 100.
NB: If an Airport frequency list has been uploaded from a compatible EFIS or
GPS and activated by menu function (in the first level Menu), only 20 channels
will be available from the currently active list (the list size is determined by the
SL30 and SL40 communications protocol and may have from 1 to 20 entries).
RX/TX bargraph
The V6 Transceiver display includes a bargraph showing the relative signal
strength of a received signal (during RX). Due to good receiver sensitivity,
signals of medium strength will fill the bargraph.
Receiving transmission of moderate strength
During TX the bargraph shows voice modulation of the actual transmit carrier.
This is a visual form of side tone making it possible to judge how well the signal
from the microphone is modulating the transmitted carrier. Note that this
bargraph does not show the level from the microphone – this shows the actual
modulation of the signal as it is transmitted.
Good modulation will cause the bargraph to just touch the right hand side of the
display for the loudest parts of transmission. Often this is achieved with click “T”
or “SHH” voice sounds. The normal parts of the voice during transmission should
show about 50% to 75% of the bargraph.
The modulator for V6 transmitter is under direct microprocessor control. The
audio signal to be transmitted is processed using digital signal processing
algorithms before being sent to the modulator.
Software control of the modulator allows the system to control modulation under
varying power supply and temperature conditions. It also allows wide range
control of the audio signal amplitude at the modulator. This prevents overmodulation while still allowing deep and rich modulation of the carrier. This
results in excellent audio quality of the transmitted signal and extends the
effective range of the transmitter.
The modulation level should be adjusted using the microphone level adjustment
in the first level menu. If a headset is changed to another type, check the
microphone level first before using it. The microphone level adjustment menu
function has a very convenient readout of the level, making adjustment easy and
precise.
Transmitting with good modulation on louder parts of voice
Visit www.MGLAvionics.co.za to download the latest version of this User and
Installation Manual
The 'MENU” button
The MENU button allows entry to the two level menu system at any time. The
menus provide access to options and adjustments such as setting intercom,
VOX, and audio levels, and many others.
Menu structure
The V6 Transceiver provides setup options and adjustments on two menu levels.
The first level is accessed by pressing the “MENU” button. The second level
with options that are typically only used during installation, is accessed via the
“Setup” option in the first level menu.
Menu functions shown inside
data is present.
are only available if enabled or required
Select channels / lists (if any lists loaded)
VOX/VOGAD adjustments
Edit memory channels
Display contrast adjustment
Microphone level (All or pilot if 4 separate levels enabled)
Additional microphone levels (if 4 levels enabled)
Music level and mute adjustment
Microphone bandpass filter
Scanning state at power up
PTT - join or separate
Setup - Enter second level menu
TX - HOT microphone or VOX/VOGAD
TX lock on RX active
Priority scanning of active frequency
Flip-Flop or direct frequency entry
Select microphone arrangement
25KHz/8.33KHz channel spacing
Reset to factory defaults
The menu system has two levels. Common adjustments and options are
concentrated in a first level while less used options are found in a second level
accessed via the “Setup” option in the first level.
Visit www.MGLAvionics.co.za for the latest version of this manual.
To return to normal
operating mode press
the menu button
Press this button to
change/edit/select the
current menu item
Rotate the knob to
select the desired
menu function
Once a menu function has been selected, the display will change according to
available functionality.
As an example, here is the ambient noise
suppression system option allowing selection of
the type of system to be used and adjustment of
the level/'strength' of the selected system.
10
First level menu
Ambient noise suppression
The V6 Transceiver provides four different
ambient noise suppression systems. These are
selected using 'Type'.
The UP and DOWN arrow buttons are used to
adjust the level or 'strength' of the selected type
●
VOGAD (three types)
This is a proprietary VOGAD system developed by MGL Avionics. It uses
gain shaping with digital processing of the audio signal from the
microphone. The voice signal envelope is detected and used to modulate
microphone gain. Three types are provided – LOW, MED(ium) and HIGH.
The type should be selected depending on noise level in the aircraft. Most
general aviation aircraft will use a medium setting. Each VOGAD type has
up to 8 levels. As the level is increased, gain falls more sharply below the
noise threshold (as set by VOGAD type).
It is important not to set the microphone gain too high. The gain must be
correctly matched to the selected type. If gain is too high ambient noise
may exceed the noise threshold for that type.
With a correctly setup VOGAD system the microphone seem to be highly
directional so that it must be placed directly in front of the mouth.
A suggested starting point is VOGAD MED(ium) level 2.
●
VOX
This type simply switches off the microphone if sound is below a preset
level. Switching is done in a digitally controlled “soft” manner so no sharp
clicks are audible. Adjust the level so that ambient noise is just below that
required to open the microphone. If the level is set too high, parts of the
first syllable will be 'lost'.
11
Program channels
This function supports memory channel
programming.
Memory channels may be programmed using this
function or they may be downloaded from a PC
using software available from
www.MGLAvionics.co.za
The V6 provides 99 memory channels for user
programmed frequencies. Each channel has a
frequency, name for the frequency (for example
airport name) and type for the frequency (for
example “TOWER”).
Name and type can be up to 6 characters long.
Use the ACTIVE button to move the highlight (inverted part of the display)
between lines for editing.
Channel selected:
Rotate the FREQUENCY knob to select the channel to edit.
Frequency selected:
Press the FREQUENCY knob to select between the MHZ or KHZ part of the
frequency setting (the MHz or KHz part will flash to indicate which is selected).
Rotate the FREQUENCY knob to change the frequency.
Name or Type selected:
Press the FREQUENCY knob to select the character position to edit.
Rotate the FREQUENCY knob to change the character.
Press the “MENU” button to return to the first level menu when finished with
editing channels.
Contrast
This function is for adjusting display contrast as
required. A value between 30 and 40 is suitable
for most environments. A lower value results in a
lighter display while a higher value results in a
darker display. Adjust the contrast so that dark
areas are fully saturated while light areas do not
show any darkening.
12
Microphone level
This function allows adjustment of microphone
gain. A bargraph is provided to assist in
adjustment to the correct value. The correct level
is such that the bargraph remains between about
½ and ¾ of the range while speaking normally
into the microphone, with excursions all the way
to the right only during the loudest parts of
speech or “click” sounds.
NB: The level shown by the bargraph is for the Pilot microphone input ONLY. No
level is shown for the passenger microphone.
For a single microphone gain setting, this adjustment affects all microphones.
Correct adjustment of this level is important. It affects operation of the
ambient noise suppression systems and modulation level of the
transmitter.
NB: By design the transmitter cannot be over-modulated if levels are set too
high. However, sound quality may suffer.
Using independent level settings for pilot and passenger microphone
circuits:
A second level menu option is available to enable independent level adjustments
for all four microphone circuits.
If enabled, four independent gain adjustments are available:
Microphone bandpass filter
For operation with high ambient noise levels an
additional voice bandpass filter can be added for
the microphone circuits.
This can help reduce the effects of unwanted
noise, in particular at very low and very high
frequencies. This filter has a sharp cutoff for
frequencies below 500 Hz and above 2.4KHz.
13
PTT Mode
The V6 Transceiver has two PTT inputs, one for
the pilot circuit and one for the passenger circuit
(Pax). These may be operated independently or
together.
With “Join” selected, both microphone circuits are
active during transmit rand either PTT may be
used.
With “Separate” selected, only the microphone
circuit associated with its own PTT is active during transmission – the other
microphone is muted.
Auxiliary input level
An EFIS voice alert or other sound system
(music) may be connected to the auxiliary input.
Two adjustable levels are provided for this input.
Open: This level applies if no sound is received
from the microphones.
Mute: This level applies if sound is received on
either of the microphone circuits.
In particular, with the Mute level set lower than the Open level the auxiliary input
fades to a lower level when the intercom is in use and returns when input from
the microphones ceases. With the Mute level set to OFF, the auxiliary input is
muted during use of the intercom.
The auxiliary input is not switched between levels but is faded between levels
(slow, pleasant fading in and out).
Scanning state at power up
Select scanning enabled or disabled when the
V10 Transceiver is switched on.
Scanning is only applicable for a single unit in
active/standby mode with direct frequency entry
disabled.
Scanning continuously checks reception on both
active and standby frequencies.
Setup
This is the entry point to the second level menu
with rarely used options and adjustments. These
are usually only required when first installing a
V10 Transceiver.
Second level menu
The second level menu is accessed by selecting “Setup” in the first level menu.
Rotate the knob to
select the desired
function and then press
the knob inwards to
select the option.
TX MIC VOX / TX MIC HOT
While transmitting the ambient noise suppression system may remain active “TX MIC VOX” - or the microphone may be continuously live - “hot” - during the
time of transmission - “TX MIC HOT”.
TX LOCK ON / TX LOCK OFF
Transmission may be prevented while a signal is being received on the active
frequency.
With “LOCK ON” selected the PTT is disabled while there is a signal being
received (the squelch is 'open') on the active frequency.
P-scan ON / P-scan OFF
Enable or disable Priority scanning. Priority scanning only applies to systems set
for Flip-Flop frequency selection.
With Priority scanning ON and scanning enabled (enable/disable by holding the
15
ACTIVE button down for 1 second), if reception is on the standby frequency,
there is a brief interruption once every second while the radio checks the active
frequency for a signal. If the active frequency detects a signal above the squelch
threshold, reception switches to the active channel unconditionally. Once
reception on the active channel ends, reception returns to the standby frequency
or scanning resumes.
Direct FS / Flip-Flop FS
Selects between Direct Frequency Selection or active/standby “Flip-Flop”
Frequency Selection.
With Direct Frequency Selection only one frequency is displayed – that of the
active channel. There is no standby channel and no scanning is possible.
1 MIC Level / 4 MIC Level
For '1 MIC Level' a single gain is used for all microphones. '4 MIC Level'
provides independent control of gain for each of the four microphones.
Microphone gain is set in the first level menu.
CHANNEL spacing
This allows selection of either 25KHz or 8.33KHz steps when setting operating
frequencies. The 8.33KHz setting allows operation in areas using these channel
allocations. All frequency definitions are in accordance with ICAO standards
(ref ICAO Annex 10 Vol 5 § 4.1.2.4)
Default
This function allows the Transceiver to be reset to 'factory default' settings.
Confirmation is required before the reset.
Items NOT affected are memory channels and current active and standby
frequencies
16
Installation
This chapter describes basic installation options for the V10 Transceiver.
For additional information refer to the User and Installation Manual. This may be
downloaded from www.MGLAvionics.co.za
General installation notes
Installation should be performed by a qualified aircraft electronics technician.
All wiring external to the V6 Transceiver to conform to relevant aircraft standards.
Flame proof or flame retardant insulation to be used on all wiring.
Installations must conform to local regulations.
All soldering to use acceptable electronic fluxed solder wire. Solder joints are
required to be of high quality to acceptable standards.
It is recommended that shielded cables are used for all audio signal connections
and digital communications links. Using unshielded cables may result in
interference or audio feedback.
Choose suitable power cable of sufficient diameter to carry the maximum
expected current to the V6 Transceiver (1.5A maximum).
It is mandatory to install a 2.5A-5A slow blow fuse or equivalent circuit breaker in
line to the supply of the V6 Transceiver.
Never share power to a Radio Frequency device with sensitive equipment such
as GPS receivers and EFIS systems. Route separate grounds and power supply
wiring to the V6 Transceiver.
Use good quality coaxial cable - RG400 or equivalent. Choose a low loss cable if
the antenna mount far away from the Radio.
Ensure that the antenna cable has a correctly fitted BNC connector. Ensure in
particular that no short exists either inside the BNC connector or at the antenna
side of the cable. A shorted cable may result in poor performance and may
damage the transmitter.
Never route the antenna cable in a bundle with other wires. Never bend the
antenna cable sharply as this degrades its function as a transmission line.
After installation verify proper operation of the V6 transmitter using a suitable RF
power meter with SWR readout. Ensure that the antenna is well matched and is
able to radiate the available RF power generated by the V6. Reflected power
due to poor antenna match may enter the aircraft ground system and cause
interference with other systems.
Before operating the transmitter of the V6 Transceiver, ensure that microphones
are operational and levels have been setup correctly (in the first level menu –
microphone level setup).
17
Planning
The V6 Transceiver is a complex combination of Radio and Intercom and may be
installed with many possible combinations of features. Careful planning of the
installation is necessary based on the configuration of the aircraft and personal
operating preferences.
Choose a position on the instrument panel where the Radio may be clearly seen
and easily reached to operate the controls. Where space behind the panel is
limited, it may be necessary to use special arrangements or fittings for the
connectors. A dimension as small as 150mm/6inches behind the panel is
possible.
The antenna is critical to getting the best performance from the Radio. Look at
similar aircraft to help in choosing a suitable position to mount the antenna.
The V6 Transceiver has two PTT inputs. Some aircraft have two control yokes or
sticks, so that two PTT switches may be installed, one for each position. With
two switches installed and the PTT configuration in the second level menu set to
'Separate', only MICROPHONE 1 will be 'live' when transmitting with PTT 1 and
similarly only MICROPHONE 2 with PTT 2. Wiring must be arranged accordingly.
For this arrangement, MICROPHONE 1 has priority. This means that
PTT 1/MICROPHONE 1 will 'take over' transmission if PTT 1 is activated, even if
PTT 2/MICROPHONE 2 is transmitting. For an aircraft having a single stick and
the PTT configuration set to 'Join', a single PTT switch may be connected to
either PTT input and both MICROPHONE 1 and MICROPHONE 2 will be 'live'
when transmitting.
The Intercom of the V6 Transceiver is provided with an 'Isolate' facility. When
activated, this allows the two stereo audio output circuits to be separated or
'Isolated'. When isolated, microphones are associated with outputs according to
the arrangement set in the second level menu. Thus MICROPHONE 2 may be
associated with either OUTPUT 1 or OUTPUT 2 depending on whether 'Mic 1+3'
or 'Mic 2+2' is selected respectively. If it is required that the pilot is 'on his own'
when 'Isolate' is activated then the headphones associated with MICROPHONE
2 must be wired to OUTPUT 2 and 'Mic 1+3' is selected. With this arrangement,
when 'Isolated', PTT 2 is deactivated. Alternatively if the microphones are to be
separated two and two, then the headphones for MICROPHONE 2 are wired to
OUTPUT 1 and 'Mic 2+2' is selected.
The V6 has two mono auxiliary audio inputs, shown as AuxInP and AuxInS on
the connector pin-out below. These inputs are prioritized. Thus if an audio input
on AuxInS (Secondary) is being passed though to the audio outputs and an input
is applied to AuxInP (Primary) input, this passes through instead and AuxInS is
muted completely. AuxInP has priority over AuxInS. Thus AuxInP might be used
for more important alarms or voice alerts (such as Terrain Warning) with others
(such Oil Pressure) relegated to AuxInS.
18
DB-25 connector pin out
A 25 pin female SubD connector on the rear panel provides all low frequency
signal and power connections to the V6 Transceiver. The wiring harness in the
aircraft requires a male DB-25 connector.
A clean DC supply of 12V or 24V nominal is required. Internal protection will
cause the Radio to be switched off if the DC voltage exceeds 32V. The negative
supply lead to the Radio should be terminated at a separate connection point as
close as possible to the negative terminal of the battery. This will help to reduce
interference from other electrically noisy equipment in the aircraft.
A four circuit intercom circuit is provided. One circuit (MICROPHONE 1) is
intended for the pilot and the others for passengers. It is possible to connect
several microphones to each circuit in parallel. In this case it is recommended
that identical headsets be used.
A stereo music input is provided. A suitable jack, such as a 3.5mm stereo audio
jack, should be provided if this input is to be used. An MP3 player may then
easily be connected. For best results, the jack should be insulated from the
airframe and its ground connected to the analog ground pin on the Radio.
Two mono auxiliary audio inputs are provided. These inputs can be used to
connect alarms, EFIS voice alerts and the like.
Two stereo audio outputs are provided. These are capable of driving 8 ohm
speakers or multiple (up to 8) standard aviation headsets. The pilot's headset
should be connected to HEADPHONE 1. The installation may be wired for mono
headsets. In this case, headphone connections should use only one 'side' of the
stereo outputs – all connected to the same side. The corresponding 'side' of the
stereo input can then be used for music.
Separate analog and microphone grounds are provided. They should not be
connected to supply ground or the airframe as this may introduce audio
interference. Insulating washers or an insulating panel should be used to mount
headset and microphone jacks so that these may be connected back to the
analog and microphone grounds respectively without connecting to the airframe.
Screened cable should be used for microphone connections.
Two PTT inputs are provided. A PTT is activated by connecting the input to
power supply ground or audio ground. Airframe ground may also be acceptable.
Two independent RS232 serial communications ports are provided. These may
be used to connect to two independent EFIS systems for remote control of the
V6 Transceiver. These ports are equivalent and interchangeable.
Principal wiring diagrams
Use this diagram for headsets that provide
built in PTT buttons.
Please note use of shielded audio cable
Use this diagram for independent PTT
switches. Here both pilot and passenger PTT
are shown. The passenger PTT is optional.
Please note use of shielded audio cable. It is
recommended to use shielded cable on PTT
as well, particularly if long cables are
required.
A 2.5A – 5A circuit breaker or fuse must be installed. This is mandatory.
Single Transceiver installation
This is the minimum installation. Connect the following:
●
Power supply (typically 12VDC)
●
Pilot headset - microphone and headphones
●
Pilot PTT switch
●
Antenna tuned to the VHF airband connected via RG400 or equivalent
50 ohm coaxial cable
These optional items may also be connected:
●
Up to three additional separate headsets
●
One additional PTT switch
●
Stereo music source
●
One or two auxiliary audio sources
●
One or two RS232 connections to EFIS systems (if used)
For more information visit www.MGLAvionics.co.za
21
Specifications –
Subject to change without notification
General
Frequency range RX:
108.000-136.975MHz
Frequency range TX:
118.000-136.975MHz
Frequency control:
High resolution fully digital PLL (DPLL) with
precision reference oscillator and CORTEX M3
microcontoller
Tuning steps:
1MHz, 25KHz, 8.33KHz
Display:
Graphic LCD with green backlight – 46 x 30mm
Memories:
100 + 10 x 20 SL30/SL40 compatible
frequency lists
Physical
Configuration:
Front mount - standard Ø57mm / 2¼” cutout
Overall dimensions:
W61mm x H61mm x D120mm
W3.35” x H3.35” x D3.43”
Installed depth:
120mm / 4.8” (excl. connectors and wiring)
Operating temperature range:
-20ºC ... +55ºC
Weight:
250 grams
Transmitter
Configuration:
LDMOS output stage with digital modulator
Output power TX:
6.5W ±10% at 13.8V (specified power rating)
5W at 12V (typical)
3.5W at 10V (typical - low voltage operation)
Frequency tolerance:
<5ppm (-20ºC ... +55ºC)
Modulation:
AM (6K00A3E)
Spurious output:
< -60 dBc
PTT timeout
35 secs (may be restarted)
Receiver
Configuration:
Double conversion super heterodyne
1st IF 45MHz 2nd IF 455KHz
Sensitivity:
< 2uV (-101dBm / 50Ω) for 6dB S+N/N
(m=30% 1KHz)
Spurious response:
>10mV (-27dBm / 50Ω) – AGC method
22
Audio output power:
>0.5W into 8Ω, 600Ω compatible (up to 8
headsets)
Other
Microphone:
Electret
Microphone bias:
8.2V low noise / 1KΩ load
Audio subsystem:
Digital with 24bit CODEC, 12KS/s, and DSP
Intercom:
Four circuit with adjustable ambient noise
suppression
a) Conventional VOX
b) MGL Avionics propriety digital VOGAD
Music & Auxiliary Inputs:
2Vp-p (max) / 10KΩ load
Serial communications:
2 x RS232, Garmin SL30/SL40 compatible,
MGL EFIS compatible, full remote control
Power
Voltage:
Nominal 13.8VDC Negative ground
Voltage limits:
10.0 ... 32.0VDC (continuous operation, no
damage)
Current RX:
<250mA / 13.8VDC (no signal, squelch closed)
Current TX:
<1.5A / 13.8VDC (50Ω load)
RF Exposure
This Transceiver generates RF electromagnetic energy while transmitting. For
compliance with RF exposure limits, the antenna gain should not exceed 0dBd
(dipole antenna) and any persons should maintain a distance of at least
0.75m/2.5' during operation.
Do not operate this Transceiver in an explosive atmosphere
FCC Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the
condition that this device does not cause harmful interference,
This Transceiver has been tested for compliance with CFR 47 parts 2, 15, and
87 as applicable and is registered accordingly. Any changes or modifications not
expressly approved may void the user's authority to operate the equipment.
FCC ID: WSJV6
23
REFERENCE
ADJUST VOLUME OR SQUELCH
Press VOL/SQ to select volume or squelch level adjustment as required.
Use UP/DOWN arrow buttons to adjust. Switching from squelch to volume
briefly opens squelch (for a receiver 'static' test)
INTERCOM SETUP - Refer to first level Menu
Suggested starting point: VOX level 7 or VOGAD MED level 2
Microphone level needs to be set correctly
Select PTT Join/ISeparate as required
SWITCH ACTIVE AND STANDBY FREQUENCY
Press ACTIVE button.
FREQUENCY ENTRY
SET STANDBY FREQUENCY
Press MHZ/KHZ/CH button. Standby frequency selection changes
between MHz and KHz. Use UP/DOWN arrow buttons to set frequency
SELECT 50KHZ OR 25 KHZ TUNING STEPS
Press and hold MHZ/KHZ/CH button for one second
CHANGE TO CHANNEL ENTRY
Press and hold MHZ/KHZ/CH button for two seconds
CHANNEL ENTRY
SELECT CHANNEL
Press MHZ/KHZ/CH button to change between setting of channel number
10's and channel number 1's. Use UP/DOWN arrow buttons to set
channel
CHANGE TO FREQUENCY ENTRY
Press and hold MHZ/KHZ/CH button for two seconds
SELECT SCANNING ON/OFF
Press and hold ACTIVE button for one second. Flashing “S” in header bar
signifies scanning “on”
NB: A “priority scan” setup is available in the second level Menu
SET 121.5 MHz EMERGENCY CHANNEL
Press and hold ACTIVE button for three seconds. Active frequency will
change to 121.500 MHz
Visit www.MGLAvionics.co.za to download the latest version of this User and
Installation Manual

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