Ameri-King АК-451-Series - Manual (Page 16)

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site is instantly known due to the aircraft's navigation system position data
communication with the ELT. Without the position data being transmitted, it is
necessary for the polar orbiting satellites to pass overhead, using Doppler Shift
technology to determine position. In a worst case scenario this could be a 3 to 4 hour
wait for a polar orbiting satellite to pass over. In addition, the accuracy of the position
fix is much better i.e. 22 meters (with GPS/Nav Position data) versus 1 to 2
kilometers for the standard 406.028 MHz system (without GPS/NAV Position data).
The ELT accept Aviation RS-232 data bus formats. By reprogramming the ELT with
the aircraft's 24 bit identification or serialized (long message format), this facilitates
moving the ELT from one aircraft to another when performing routine maintenance,
etc
WARNING: The programming and labeling of the ELT must match the aircraft it is
installed in. The product label will have to be re-marked to reflect the new
programming and/or country of registry if a 24-Bit address long message protocol
ELT is reprogrammed .
Re-registration may not be required if the contact information does not change,
however, contact your local civil aviation or beacon registration authority when in
doubt.
Both serialized long message and 24-Bit address long message, re-programmed
ELT, that is moved to another aircraft, shall need to be re-registered via On line
or via Post mail.
The user must specify 24-bit long message programming when ordering the ELT.
Changing the programming protocol of the ELT can only be done at Ameri-King or
an authorized Ameri-King Repair Station.
3.1.10.2.
ELT/GPS Interface Communication Formats
The only Aviation RS-232 format which is supported is limited to the following
conditions:
Baud
Rate (fixed): 9600
Parity: None
Data Bits: 8
Stop Bits: 1
In addition the RS-232 format must have a Start of Text (STX): an "A" identifier for
latitude; a "B" identifier for longitude and END of Text (ETX). The format expects
carriage returns but will not operate if there are line feeds.
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The following manufacturer's navigation systems are known to interface with the AK-
451:
GARMIN INTERNATIONAL INC.:
• All Series: 150/ 250/ 400/420/430/ 500/520/530
HONEYWELL BENDIX-KING INC.:
• KLN 88, KLN89, KLN89B, KLN 90, KLN90B, KLN94, KLN900.
ARNAV SYSTEMS INC.:
• R50, R50i, STAR 5000, FMS 5000, MFD (Multi-Functional Display).
II MORROW:
• FLYBUDDY, 2001 NMS
TRIMBLE NAV INC.:
• NAV 1000, NAV 2000, TNL 2100, and TNL3100. The following Trimble systems
all require a RS-422 to RS-232 adapter: NAV 3000, TNL 1000, TNL 2000, TNL
2000A, TNL 3000, 2000 APPROACH, 2000 APPROACH PLUS, 2101
APPROACH, 2101 APPROACH PLUS, 2101 I/O APPROACH, 2101 I/O
APPROACH PLUS.
For other equipment models contact that equipment manufacturer to determine if their
equipment supports the Aviation RS-232 format specified above.
3.1.10.3 ELT/FMC
Interface and Checkout Process
All installation processes and interconnections to navigation systems should adhere to
the guidelines set forth in the FAA Advisory Circulars AC43.13-1A, 43.13-2A,20-
130A and 20-138, or later revisions of these documents. It is very important that the
Global Positioning System/Flight Management Computer (GPS/FMC) manufacturer's
installation instructions be consulted regarding installation details that may be specific
to the GPS/FMC. Refer to the installation instructions specific to the GPS/FMC that
you are connecting the ELT for specific instructions.
For all testing of the 406 MHz output, only the "test message" that is transmitted at
turn off is required to verify the ELT and ELT/GPS Interface function.
Note: It is extremely important that the ELT/GPS Interface installation not be in
conflict with the GPS/FMC manufacturer's installation instructions in order to avoid
an installation that may degrade the GPS/FMC performance. As a result, the Post
Installation checkout in the GPS/
FMC Installation Manual may be followed after installing the ELT.