IFR ATC600A

IFR ATC600A Transponder Test Set

The IFR ATC-600A is a completely self-contained unit designed to provide accurate Transponder/DME measurements on ramp or at the bench. Compact, mini in size and weight, this portable Test Set permits simulation of the ground station and airborne environment. Meets latest ARINC specifications and FAA regulations (91.177 and 43 appendix F as amended December, 1973) concerning transponder receiver sensitivity and SLS tests.

Transponder tests allow quick determination of transmitter power, frequency, percent reply, pilot's code and encoded altitude. Variable-spaced interrogations and reply framing timing checks are also provided.

DME testing capabilities include accurate range and velocity simulation, power and frequency, and PRF measurements.

IFR ATC600A Transponder Specifications:

Interrogations Output:
  Mode: A/C, Altitude or Pilot Code, 2:1 interface, or mode A
  Pulse Spacing: P₂ and P₃ variable with respect to P₁ +/-1 µs from nominal for input decoder gate tests
  PRF: 235 Hz +/-10%
  SLS Test: +/-1.0 dB P₂ inserted at 0 dB or -9 dB relative to P₁
  Power: -66 to -79 dBm direct with 34 dB pad +/-1.5 dBm
Reply Measurements:
  Power (UUT): 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
  Pilot Code: Binary and Numerical Readout, 0000 to 7777
  Percent Reply: 0-100%, either A/C or A(B) modes
  F₂ Pulse Position: Measurement of rising and falling edge +/-0.5 µs from nominal
  Status Lamps: Ident Pulses, Invalid Altitude Code and No Altitude Code
  Encoder Test: Direct connection accepts altitude encoder

DME Specifications:
Interrogations Measurements:
  PRF:
  Power (UUT):
  Frequency Check:
Reply Output:
  Frequency: Paired with VOR: 108.00 MHz (17X-channel) or 108.05 MHz (17Y-channel) standard.
  Output Power: Approximately -45 direct with 34 dB pad or radiated with properly spaced antenna
  Range: 0 to 399 NM in 1 NM steps. Accuracy +/-0.07 NM +/-0.02%
  Velocity: 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 displayed
  Percent Reply: 100% or 50%
  Ident Tone: 1350 Hz (+/-8 Hz) with equalizing pulses

Physical Characteristics:
Power: 115/240 VAC, 50 to 400 Hz, 20 W. Internal NICAD battery operation for approximately 2 hours continuous operation.
Dimensions: Housed in a portable case 11.4" (29.0 cm) wide, 5.1" (13.0 cm) high, 16.1" (41.0 cm) deep. - does not include packaging
Weight: 18 lbs. (8.1 kg) approx. - does not include packaging