UC-584 Universal Transponder Antenna Coupler

Product Description

The UC-584 Universal Transponder Antenna Coupler solves the problem of reliable FAR Part 43 Appendix ‘F’ ERP (Effective Radiated Power) and transponder MTL (Minimum Trigger Level) testing in multi-path environments. The coupler mounts directly over the aircraft transponder antenna(s) and is secured in place with a toggle action grip, or slipped onto the top antenna when using the top mount coupler.

The UC-584 provides >20 dB of attenuation and minimizes the chance that airborne TCAS systems and air traffic controllers will see UUT transponder altitude replies under test conditions. The innovative design of the UC-584 includes an integral positioning slot, ensuring a high level of measurement repeatability is achieved, saving test time. The UC-584 can be connected to the VIAVI IFR6000, IFR6015, and APM-424(V)5 flight line test sets or to the VIAVI IFF-45TS bench test set, or to any suitable transponder test set.

Version (EDMO# 87431) only includes the lower L-band coupler with clamping.

Specifications

• Weight:
  2 lbs (0.9 kg)
• Dimensions:
  8.2 x 5.75 x 5.25 in (20.9 x 14.6 x 13.3 cm)
• Frequencies:
  1030 MHz, 1090 MHz
• Return Loss:
  >7.71 dB at both the antenna under test input and coupler input
• Insertion Loss:
  0.6 dB ±0.5 dB typical
• Repeatability:
  <1 dB
• Isolation:
  >20 dB
• Connector:
  TNC Female
• Maximum Aircraft Antenna Size Accommodated:
  3.9 x 0.325 x 2.9 in (9.9 x 0.825 x 7.37 cm)

Product Codes

• Mfr Part No
  87431
• SCHEDULE B CODE
  9031.90.0000