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BENDIX/KING KLN 90B
Page 2-2 10521I05.TDC Rev 5, April/2003
2.3.3 ANTENNA SELECTION
The KA 91 and KA 92 GPS active antennas, P/N 071-01545-0200 and 071-01553-0200 respec-
tively, are the designated antennas for the KLN 90B.
2.3.4 ANTENNA INSTALLATION CONSIDERATIONS
The antenna should be mounted on top of the fuselage near the cockpit. Avoid mounting the an-
tenna near any projections, the propeller, and the T-tail of the aircraft, where shadows could occur.
It is recommended that there be a separation of at least 3 ft. between the KLN 90B GPS antenna
and any VHF Comm antenna on the aircraft. Antenna baseplate must be level within 5° in both
axes when the aircraft is in level flight. If the antenna is tilted more than 5° or is mounted close to
other objects that shadow it, loss of some of the satellites will occur and system performance may
be degraded. Antenna cable and connector information, including vendor information, is listed be-
low. Refer to figure 2-10 (TNC) and figure 2-11 (BMA) for cable/connector assembly instructions
for the 0 to 40 feet category using RG 400/U or RG 142B/U. Refer to figure 2-12 (for both TNC
and BMA) for the 0 to 80 feet and 0 to 100 feet categories.
NOTE
KA 91/92 nominal gain and noise figures are 26.5 dB
and 2.3 dB respectively. With 0.050 ice on radome,
gain will not decrease by more than 2.0 dB when
viewing a satellite from 30° above the horizon to ze-
nith, as compared to a no ice condition.
100 to 165 ft. Contact TED, ECS or PIC for complete cable/connector assembly.
NOTE
A right angle antenna connector is available from
Honeywell (P/N 030-00134-0001) or from TED.
TED Manufacturing Corp. Electronic Cable Specialists (ECS) PIC Wire and Cable
11415 Johnson Drive 11227 W. Forest Home Avenue N63 W 22619 Main Street
Shawnee, Kansas 66203 Franklin, Wisconsin 53132 P.O. Box 330
Tel: (913) 631-6211 Tel: (800) ECS-WIRE Sussex, Wisconsin 53089
or (414) 421-5300 Tel: (800) 742-3191
or (414) 246-0500
CABLE
Length
CABLE PART NUM-
BER
BMA CONNECTOR TNC CONNECTOR MAX. Allowable
Loss (dB)
0 to 40 ft. 024-00002-0000
RG142B/U
030-00101-0002
TED Mfg. 9-30-10
030-00134-0000
TED Mfg. 5-10-30
8.0
0 to 40 ft. 024-00051-0060
RG400/U
030-00101-0002
TED Mfg. 9-30-10
030-00134-0000
TED Mfg. 5-10-30
8.0
0 to 80 ft. 024-00072-0000
ECS 311601
030-00452-0000
TED Mfg. 9-30-26
030-00108-0002
TED Mfg. 5-10-307
8.0
0 to 100
ft.
024-00071-0000
ECS 311201
030-00452-0001
TED Mfg. 9-30-25
030-00108-0003
TED Mfg. 5-10-306
8.0