PRODUCT
INFORMATION
PAGE


KR-87
FEATURES
  • Silver Crown Plus ADF receiver
  • New backlighted bezel nomenclature and knobs for easy recognition during night flights
  • Used with KA-44B combined loop/sense low profile ADF antenna OR KA-44 blade antenna
  • Can be used with single needle KI-227 ADF indicator or dual needle KI-228 indicator (both indiactors available with manual or slaved compass cards)
  • May be interfaced to King KI-229 or KNI-582 RMIs
  • Can be interfaced with other 3-wire RMI indicators by way of KDA-692 RMI adapter
  • Internal timer for flight time and elapsed time which proves valuable for non-precision timed approaches, fuel management, dead reckoning navigation
  • Automatic dimming circuit adjusts the brightness of the display to compensate for changes in the ambient light level
  • Coherent detection design rejects unwanted frequency interference, achieves significantly greater range and has less suspectiblility to engine noise, static and atmospheric interference
  • Flip-flop frequency display allows to switch between pre-selected "standby" and "active" frequencies
  • Operates on any voltage from 11-33 VDC with 12 watts power consumption
  • TSO'd
SPECIFICATIONS
Size: 6.31"W x 1.38"H x 11.28"L Weight: 3.2 lbs.
TSO Compliance: C41c DO-160 Env. Cat A1D1/A/SKP/XXXXXX/ZBABA Applicable Documents: RTCA DO-142
Frequency Range: 200KHz to 1799KHz in 1 KHz increments Receiver Selectivity: 6dB bandwidth: +-2 KHz max off center frequency; 80dB bandwidth: +-7 KHz max off center frequency
Bearing Accuracy: +- 3 degrees from 70 uV/m to 0.5 V/m RF input signal level Power Requirements: 11 to 33 VDC at 12W
Temperature Range: -20 to +55C Altitude Range: Up to 50,000 feet
Receiver Senstivity: 150uV/m max for s+n/n = 6dB Spurious Response: 80dB down +-12KHz from center frequency
Output to Indicator: DC sine and cosine voltages 4.5 +- 3.0VDC (150mA max) Audio Output: 50mW across 500ohm
Superflag Output: Valid high Alarm Output: maximum current 1.0A; max open circuit voltage 33.0V

KR-87
Part Number ADF Receiver Description
066-1072-14 see details above


kr87plus