Garmin g1000 beechcraftbaron58 g58 pilots guide Manuale Utente

190-00629-00  Rev. B   

E-2

Garmin G1000 Pilot’s Guide for Beechcraft 58/G58

NOTE:  TIS is unavailable at low altitudes in many 
areas of the United States. This is often the case 
in mountainous regions.  

TIS  information  is  collected  during  a  single  radar 

sweep.    Collected  information  is  then  sent  through  the 
Mode  S  uplink  on  the  next  radar  sweep.    Because  of 
this,  the  surveillance  information  is  approximately  five 
seconds old.  TIS ground station tracking software uses 
prediction algorithms to compensate for this delay.  These 
algorithms  uses  track  history  data  to  calculate  expected 
intruder  positions  consistent  with  the  time  of  display.  
Occasionally,  aircraft  maneuvering  may  cause  variations 
in this calculation and create slight errors on the Traffic 
Map Page.  Errors affect relative bearing information and 
target track vector.  This can cause a delay in the displayed 
intruder  information.    However,  intruder  distance  and 
altitude  typically  remain  relatively  accurate  and  may  be 
used to assist in spotting traffic. 

The following errors are common examples:

•  When the client or intruder aircraft maneuvers 

excessively or abruptly, the tracking algorithm 
may report incorrect horizontal position until the 
maneuvering aircraft stabilizes.

•  When a rapidly closing intruder is on a course 

that intercepts the client aircraft course at a shal-
low angle (either overtaking or head-on), and 
either aircraft abruptly changes course within 
0.25 nautical miles, TIS may display the intruder 
aircraft on the incorrect side of the client aircraft.

These are rare occurrences and are typically resolved 

within a few radar sweeps once the client/intruder aircraft 
course stabilizes.  

Pilots using TIS can provide valuable assistance in the 

correction of malfunctions by reporting their observations 
of  undesirable  performance.    Reporters  should  identify 
the  time  of  observation,  location,  type  and  identity 
of  the  aircraft,  and  describe  the  condition  observed.  
Reports  should  also  include  the  type  of  transponder 
and  transponder  software  version  as  well.    Since  TIS 
performance is monitored by maintenance personnel, not 
ATC,  malfunctions  should  be  reported  in  the  following 
ways:

•  By telephone to the nearest Flight Service Station 

(FSS) facility.

•  By FAA Form 8000-7, Safety Improvement Report 

(Postage-paid card can be obtained at FAA FSSs, 
General Aviation District Offices, Flight Standards 
District Offices, and General Aviation Fixed Base 
Operators).