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Mounting considerations, Wiring considerations, Rfi/emi considerations – TruTrak TS-83 Rev C User Manual

Page 6

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6

Instrument  Installation  

Mounting  Considerations  

The  TS-­‐83  unit  is  designed  to  mount  in  the  aircraft  
instrument  panel.  It  is  recommended  that  the  unit  
be   mounted   within   view   and   reach   of   the   pilot.    
The   indicator   lights   on   the   front   provide   status  
information   about   the   function   of   the   unit.     This  

also  allows  the  pilot  to  easily  plug  in  or  remove  a  
USB  memory  device.    The  location  should  be  such  
that   the   instrument   is   not   blocked   by   the   glare  
shield  on  top,  or  by  the  throttles,  control  yoke,  etc.  
on   the   bottom.   Use   aircraft   installation   standards  
for  mounting  and  support  of  the  instrument.    The  

Wi-­‐Fi  antenna  is  built  into  the  mounting  box  of  the  
instrument   and   in   some   cases,   Wi-­‐Fi   signal  
strength   may   be   degraded   due   to   mounting  
location.     The   unit   has   been   tested   in   various  
aluminum   panel   aircraft   and   found   to   have  
sufficient  signal  strength  to  operate  satisfactorily.      

Wiring  Considerations  

Use   AWG   #24   or   larger   wire   for   all   connections  
unless   otherwise   specified.   The   standard   solder  

pin   contacts   supplied   in   the   connector   kit   are  
compatible   with   up   to   AWG   #18   wire.   In   cases  
where   some   installations   have   more   than   one  

component   sharing   a   common   circuit   breaker,  
sizing  and  wire  gauge  is  based  on  length  of  wiring  
and  current  draw  on  units.  In  these  cases,  a  larger  
gauge   wire   such   as   AWG   #20   may   be   needed   for  

power  connections.    Do  not  attach  any  wires  to  the  
outside   of   the   instrument   or   route   high   current  
wires   within   six   (6)   inches   of   the   instrument.    
Ensure  that  routing  of  the  wiring  is  not  exposed  to  
sources  of  heat,  RF  or  EM  interference.    Check  that  
there   is   ample   space   for   the   cabling   and   mating  

connectors.   Avoid   sharp   bends   in   cabling   and  
routing   near   aircraft   control   cables.   Do   not   route  
the   COM   antenna   coax   near   any   instrument  
components.     The   TS-­‐83   should   be   connected   to  
the   avionics   master   bus,   not   the   battery   master  
bus.     This   way   the   instrument   is   in   a   powered  
down  state  during  engine  starting.      

RFI/EMI  Considerations  

The  instrument  has  been  designed  to  not  generate  

any   appreciable   level   of   electromagnetic  
interference.     It   has   a   low-­‐current   draw   and  
cannot   contribute   to   RF   interference.     Be   sure   all  
COM   antennas   are   properly   installed,   tuned,   and  
grounded  as  stray  RFI  can  cause  unreliable  Wi-­‐Fi  
performance.