Garmin AT Inc. AT7000 Manual De Usuario
Installation
Installation Manual
Page 24
560-0405-00 Rev –
December 14, 2001
© 2001 by UPS Aviation Technologies Inc.
Table 4 - Max Airspeed Program
Max airspeed connections
Max Airspeed
Prgm C
TP 5C
Prgm B
TP 5B
Prgm A
TP 5A
Not available
Open
Open
Open
Up to 75 knots
Open
Open
Common
75 to 150 knots
Open
Common
Open
150 to 300 knots
Open
Common
Common
300 to 600 knots
Common
Open
Open
600 to 1200 knots
Common
Open
Common
Above 1200 knots
Common
Common
Open
Not assigned
Common
Common
Common
Common pin
TP 5D
3.4.6 Antenna Delay Program
The antenna cables from the transponder to the top and bottom antennas may vary in
length. The transponder must be programmed for the cable delay if the difference be-
tween the top and bottom antennas is greater than 50 nsec. This is accomplished by con-
necting the appropriate pins to the common pin as defined in the following table.
length. The transponder must be programmed for the cable delay if the difference be-
tween the top and bottom antennas is greater than 50 nsec. This is accomplished by con-
necting the appropriate pins to the common pin as defined in the following table.
Table 5 - Antenna Delay Program
Delay Program Connections
Differential Delay (nsec)
Delay B
TP 3D
Delay A
TP 3E
Programmed Delay
(nsec)
0 to 50
Open
Open
0
51 to 150
Open
Common
100
151 to 250
Common
Open
200
251 to 350
Common
Common
300
Open
Common
TP 3C
Add delay to top
antenna
Add delay to
bottom antenna
Common Pin
TP 3F
3.4.6.1 Antenna Delay Calculation
The antenna cable delay is defined as the round trip propagation delay between the trans-
ponder and the antenna. Typical cable delay is 1.54 nsec/ft.
ponder and the antenna. Typical cable delay is 1.54 nsec/ft.