ATC 600A Specification Sheet
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Portable Transponder/DME Test Set
A portable transponder/DME ramp test
set, the rugged ATC-600A is the ideal
solution for both ramp or bench use.
• Read XPDR code and altitude
• Measure transponder frequency and
check for correct DME channel
• Measure transponder receiver sensitivity
• Performs all tests required by the
revised Federal Aviation Regulations
(91.177 and 43 Appendix F)
• Two-year limited warranty
Performance Features
The ATC-600A will perform, with radiated signals, all the tests required by
the revised Federal Aviation Regulations (91.177 and 43 Appendix F, as
amended December 19, 1973).
• Reads out XPDR code and altitude numerically and also displays binary
pulse information for code and altitude
• Measures transponder frequency and checks for correct DME channel
• Front panel connector provided to directly check the output of altitude
• Capable of checking XPDR input pulse decoder gate for marginal
IFR is a leader in the design, manufacture and
marketing of Avionics test systems.
A portable transponder/DME ramp test set, the
rugged ATC-600A is the ideal solution for both
ramp or bench use. Providing simulation of the
ground station or airborne environment, the ATC600A meets the latest ARINC specifications and
FAA regulations concerning transponder receiver
sensitivity and SLS tests.
Transponder tests allow quick determination of
transmitter power, frequency, percent reply, pilot’s
code and encoded altitude. For DME testing, the
unit includes accurate range and velocity simulation, power and frequency and PRF measurements.
• Checks position of XPDR second framing pulse relative to F1
• Measures transponder receiver sensitivity and SLS tests
• Precision DME range and velocity signals, both X and Y channel
• Uses remote tripod mounted antenna - can be accurately spaced from
aircraft antenna for power measurements
Interrogations Output
1030 MHz (±0.006%)
Variable from -66 to -79 dBm (±1.5 dBm) with 34 dB pad or radiated with
properly spaced antenna
A/C, Altitude or Pilot Code, 2:1 interlace, or Mode A
(Mode B available on request)
Reply Output
Pulse Spacing
Mode A
P1 to P3
8 µs (±0.1 µs)
Mode C
P1 to P3
21 µs (±0.1 µs) (In A/C Modes)
17X-channel: 978 MHz ±0.006% (108.00 MHz paired)
Mode C
P1 to P3
17 µs (±0.1 µs)
17Y-channel: 1104 MHz ±0.006% (108.05 MHz paired)
P1 to P2
±0.1 µs
18X-channel: 979 MHz ±0.006% (108.10 MHz paired)
Variable Spacing
P2 and P3 variable with respect to P1 (±1 µs), ±1 µs from nominal
for input decoder gate tests
Approximately -45 direct with 34 dB pad or radiated with properly
spaced antenna
Reply Pulses
3.5 µs wide (±0.5 µs)
235 Hz (±10%)
Pulse Spacing
SLS Test
±1.0 dB P2 inserted at 0 or -9 dB relative to P1
Reply Measurements
X channel: 12 µs wide (±0.2 µs)
Y channel: 30 µs wide (±0.2 µs)
Power (UUT)
0 to 399 NM in 1 NM steps. Accuracy ±0.07 NM (±0.02%)
10 W to 1.5 kW peak (±20%); direct with 34 dB pad
±3 dB radiated with properly spaced antenna
Frequency Check
1086 to 1093 MHz (±0.3 MHz)
Altitude Code
Binary and Numerical Readout, -1.0 to 126.7 thousand feet
Crystal-controlled digital velocity with rates of 50, 75, 100, 150,
200, 300, 400, 600, 800, 1200, 1600 and 2400 knots (±0.02%
of setting). Inbound or outbound starting from any selected range.
Range steps in velocity mode are 0.025 NM (system), 0.1 NM
Percent Reply
50% or 100%
Pilot Code
Binary and Numerical Readout, 0000 to 7777
2700 PRF (±50 Hz)
Percent Reply
ldent Tone
0% to 100%, either A/C or A(B) modes
1350 Hz (±8 Hz) with equalizing pulses
F2 Pulse Position
Measurement of rising and falling edge ±0.5 µs from nominal
(±0.05 µs)
Status Lamps
Ident Pulses, Invalid Altitude Code and No Altitude Code
Encoder Test
Direct connection accepts altitude encoder
-20° to 55°C
Relative Humidity
≤80% for temperature up to 31°C, decreasing linearly to 50% at
40°C (Non-condensing)
Interrogations Measurements
≤4000 meters (13,124 feet)
Track PRF
0 to 30 Hz
±5% full scale
Search PRF
0 to 300 Hz
±5% full scale
Power (UUT)
10 W to 1.5 kW peak (±20%); direct with 34 dB pad
±3 dB radiated with properly spaced antenna
Frequency Check
1038 to 1045 MHz (±0.3 MHz)
Calibration Interval
1 year
102 to 120 VAC, 220 to 240 VAC, 50 Hz to 400 Hz, ≤±10% of the
nominal voltage, 24 W maximum
Internal 2.0 AH NICAD battery operation for approximately 2 hours
Versions and Accessories
Housed in a portable case 290 mm wide, 130 mm high, 410 mm
Housed in a portable case 11.4 in. wide, 5.1 in. high, 16.1 in. deep
8.1 kg (18 lbs.) approximately
Electromagnetic Compatibility
Complies with the limits in the following standards:
EN 55011 Class B
EN 50082-1
When ordering please quote the full ordering number information.
Ordering Numbers
ATC-600A Transponder/DME
Equipment, 110 VAC operation
ATC-600A Transponder/DME
Equipment, 220 VAC operation
Complies with EN 61010-1 for class 1 portable equipment and is for
use in a pollution degree 2 environment. The instrument is designed
to operate from an installation category 1 or 2 supply.
All IFR Avionics products delivered with Factory Certificate Of Calibration
IFR - "Working together to create solutions for the world of communications."
IFR is a world leader in developing leading edge test and measurement equipment.
The priority at IFR is to understand your communications test needs and respond
to them. IFR has the flexibility and expertise to create just the right test solution for
you. We understand that just as you are the expert in designing wireless products,
we are expert in wireless test.
Combining the quality of our test products with their reliability, excellent price/performance ratio and minimal requirements for maintenance, every IFR test system
represents an outstanding lifetime value.
IFR - "Working together with our customers to be flexible and innovative in providing effective test solutions for the rapid design, manufacture and maintenance of
communications systems."
The added value IFR includes with each and every test set we sell will make you
more productive. We offer a two-year standard warranty on all products and we will
continue to support your product for five years beyond its final production. Our outstanding Customer Service Department offers calibration, out-of warranty repairs
and consulting. Our Sales and Training Departments offer clear and concise product information with realistic performance specifications, technology training and
application training. Our experienced engineers will help you develop application
software and through continuous improvement programs, upgrades are always
IFR will continue to build upon our technology resources with an aggressive commitment that will enable you to excel in some of the world's most dynamic, high
growth markets.
Tel: [+86] (10) 6467 2823
Fax: [+86] (10) 6467 2821
Tel: [+33] 1 60 79 96 00
Fax: [+33] 1 60 77 69 22
Tel: [+49] (8131) 29260
Fax: [+49] (8131) 2926130
Tel: [+852] 2832 7988
Fax: [+852] 2834 5364
Tel: [+1] (972) 899 5150
Fax: [+1] (972) 899 5154
Tel: [+45] 9614 0045
Fax: [+45] 9614 0047
Tel: [+34] (91) 640 11 34
Fax: [+34] (91) 640 06 40
Chandlers Ford
Tel: [+44] (0) 2380 273722
Fax: [+44] (0) 2380 254015
Tel: [+44] (0) 1383 646464
Fax: [+44] (0) 1383 646468
Tel: [+44] (0) 1438 742200
Fax: [+44] (0) 1438 727601
Tel: [+1] (316) 522 4981
Toll Free: [+1] (800) 835 2352 (US only)
Fax: [+1] (316) 522 1360
[email protected]
As we are always seeking to improve our products, the information
in this document gives only a general indication of the product
capacity, performance and suitability, none of which shall form part
of any contract. We reserve the right to make design changes
without notice. All trademarks are acknowledged. Parent company
IFR Systems, Inc. © IFR 2001.
Part No. 46891/031
Issue 1
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