Becker BXP6401-1 Series, Installation And Operational Manual

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Ref. to
Fig. 3-1 Controls and
indicators Description Function
C Button Push-button Push to jump from digit to digit for settings
or from one menu to the next;
generally used as an enter key
D IDT Push-button Activates the Special Identifier (SPI) in ad-
dition to the reply code for approx. 18 se-
conds; during this time “ID” appears in the
LC display
E Display, part 1 2-line LCD display Displays the following informations:
- code indication in the top row
- flight level in the bottom row
- various informations in the bottom row
- additional indicators on the left side (see
Ref. H)
F STO Push-button Stores the selected values to the settings
G SEL Push-button Opens and selects the menu
H Display
, part 2
LCD indicators Displays additional indicators, (R for reply,
ID for Ident, ALT for XPDR ALT mode or ON
for XPDR ON mode, FL for flight level)
J VFR Push-button Activates VFR code in the upper row of the
display
3. Operating instructions
A. Switching on the unit (pre-flight check)
(1) Check that the circuit breaker is set and switch on the aircraft power
supply.
CAUTION: Do not switch on the transponder when engines are being
started or shutdown.
(2) Using mode switch (A), switch the transponder from OFF to SBY. A Po-
wer-on Built-In Test (PBIT) then follows automatically for 1 second.
Start-up see also section B.
INSTALLATION AND OPERATION BXP6401-X-(XX)
Page 3-2
34-50-08
September 2011