AIRCRAFT ALTITUDE ENCODER AND DIGITAL SERIALIZERS
Brought to you
by
APG - Eastern Avionics International
Twenty years ago, the full faced encoding altimeter was the
only type of encoder you would generally find in aircraft. The altimeter had
an encoder in it that would connect to your transponder to provide Mode "C"
altitude information. These units were expensive, sometimes costing thousands
of dollars.
Today, solid state blind encoders are the best option for most
of us. These inexpensive boxes are universal and connect to any modern transponder.
Installing them is pretty straightforward for any good shop. Quite simply,
you just connect the static line to the encoder with a "T" fitting
and wire the encoder lines to the transponder.
The latest encoders provide standard outputs for your transponder
and serial digital data output (RS-232) that allows a simple interface to
your GPS system. With Altitude data now going to your GPS accuracy is exceptional
and GPS IFR approaches are possible. If you're adding an IFR GPS to your aircraft
and have the space for an additional box you can also use a low cost digital
"Serializer". Serializers connect to the output of your existing
encoder and convert the standard output to the serial output required by your
IFR GPS.
The ultimate in safe and confident flying is achieved by taking
digital altitude data and interfacing it to an Altitude Management System
like the Shadin AMS-2000 described below.
(Squawkers Beware... Just a little note for possible altitude
cheaters out there. When ATC informs you of an altitude variation, touching
up your altitude with the adjustment knob does not decrease your odds of getting
violated. All encoding systems, whether they are built into the altimeter
or not, transmit your altitude corrected to 29.92 inches, or standard barometric
pressure. ATC's ground equipment makes the altitude corrections directly onto
the controller's screen. In short, what you dial up on your altimeter has
no effect on what they see on their screens. As a friend in ATC once noted,
you won't get violated in any case for a 200 foot deviation, but the guys
on the ground will rank you as an amateur and treat you accordingly. For instance,
you may be directed around their airspace, rather than allowed to take a more
direct route on through. The bottom line is still that you should do your
best and fly the numbers and clearances.)
At APG-Eastern Avionics, we've got a wide variety of altitude encoding
and management systems. From the most sophisticated counter pointer models,
to serial data units, to full faced versions, to budget priced blind models,
the staff at APG-Eastern Avionics can handle all your altitude encoding and altitude
management requirements.
AVIONICS REVIEWS
Ameri-King AK-350 Altitude Encoder 30K ft.
$209.00 $199.00 On Sale!
The AMERI-KING AK-350 is the best selling blind altitude encoder in the market! It is extremely accurate (+/- 20 Feet) and reliable and compatible with all Transponders.
Solid brass
fittings are used on the painted aluminum chassis. Included are a color coded
wiring harness, mounting tray, static line, brass "T" fitting, and
instructions on how to connect it to virtually any modern transponder. SPECIFICATIONS:FAA TSO-C88a approved.
Operating temperature: (-20 deg C to 55 deg C) Dimensions: Width 3.50" Height 2.00" Length 4.75" Weight 0.40 lbs. OPTIONAL ACCESSORY:
Wiring Jumper, wiring junction interfaces (parallel data) from Altitude Encoder to GPS / Transponders / EGPWS / Air Data Computer etc. This allows Unlimited Cascading to many other Receivers as needed. Hence substituting the requirement for adding a Terminal Junction Block or PCB at the Encoder Data Outputs.
Price $36.00
WARRANTY:
One and a half (1 1/2) years. Optional Extended Three (3) years Warranty.
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Narco AR-850 TSO'd Encoder (15 Pin)
$280.00 $202.00 On Sale!
The NARCO AR-850 is a very reliable encoder that comes in three
different versions depending on the altitude your aircraft is certified for.
The standard 20,000 ft. model is fine for most aircraft. The 25,000 and 30,000
ft. models use a different 25 pin connector that makes them direct replacements
for the AR-500, an older, now obsolete NARCO encoder. SPECIFICATIONS: Meets or exceeds TSO C88(a)
Dimensions
Width: 4.30" (109.2 mm)
Height: 1.74" ( 44.2 mm)
Depth: 6.41" (162.7 mm)
Weight
AR 850 Unit: 0.70 lbs. (.318 Kg.)
AR 850 Tray: 0.09 lbs. (.041 Kg.)
Electrical
Input Power
11 to 32 VDC at 1.4 amps maximum during the first 3 minutes of operation.
0.35 amps average after 3 minutes of operation.
Mounting
AR 850 can be mounted using holes provided in unit base or with the optional tray mount. AK-850 (25 Pin) is also available.
HOT TIP!!
This name brand costs a little more but it's worth it especially if you own
a AR-500 that needs replacement.
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Transcal Industries TCI IA-RS-232C-S Serial Altitude Adapter
$462.00 $329.00 On Sale!
The IA-RS232C Serial Altitude Adapter connects to your existing encoder and supplies serial data to your GPS system for altitude input.
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Transcal Industries TCI SSD-120-30A-RS232C Encoding Altimeter w Serial Data Altitude Output
$580.00 $429.00 On Sale!
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