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KTR 909

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Compact, lightweight and affordable, the BendixKing KTR 909 & 909B UHF Communication Transceivers offer the flexibility to meet your specific communications needs. 

Find a Dealer $46,757 MSRP
  • Overview
  • Specs
  • FAQ
Compact, lightweight and affordable, the BendixKing KTR 909 UHF Communication Transceiver offers the flexibility to meet your specific communications needs. Providing superior two-way AM voice communications, these units were specifically designed for international governmental, military and paramilitary applications, and have already been specified for use in U.S. Air Force and U.S. Navy training programs.
 
The all-solid-state unit accesses frequencies from 225.000 to 399.975 MHz in 25 kHz increments and is specifically designed for low maintenance and high reliability. The KTR 909 scans other frequencies when the unit is not in use.
 
The KFS 599A control head is used as an interface for the KTR 909. The control head features 20 user programmable channels an easy-to-read gas-discharge display or Night Vision Goggle (NVG) compatible display.
 
 
Manual Frequency Selection
The Manual Frequency display mode is selected by momentarily depressing the Channel Mode select button. In this mode, the upper line of the frequency display is blank while the lower line displays the operating frequency. The frequency may be changed by rotating the concentric selector knobs, thus allowing direct entry of the desired frequency.
 
Preset Channel Selection
The Preset Channel display mode is selected by momentarily depressing the Channel Mode select button. In this mode, the upper line of the frequency display indicates the preset channel number. Twenty user- programmable channels are available for quick access to commonly used frequencies. The guard channel is also available for transmission and reception in this mode. Preset channels may be changed by rotating either of the concentric selector knobs.
 
Remote Channel Mode Select
A remote-mounted switch may be installed to toggle both the KFS 599A between Manual Frequency display and Preset Channel display modes.
 
Remote Channel Increment 
A remote-mounted switch may be installed to place the KFS 599A in the Preset Channel display mode and incrementally scan through the channels. Operating this switch will advance the preset channel number by one count.
 
Transmitter “Push Tone” 
When the transmitter is keyed and the inner Frequency Selector knob is depressed, the transmitter will transmit a 1000 Hz tone. 
 
Stuck-Mic Protection 
When a microphone is keyed for more than 90 seconds, the control unit reverts to receive mode and the display flashes, alerting the pilot to a stuck-microphone condition. This prevents the radio from jamming the selected frequency. 
 
Configuration Options
Designed  for training purposes, dual KFS 599A control units can operate in tandem mode allowing either controller to communicate with the KTR 909 system. 
 
Tandem Control Head Operation 
Dual control units can be installed for tandem operation of the KTR 909, where one unit is designated the master and one is the slave.
 
In tandem operations, only those preset channels stored in the master control unit are available to the slave unit. A Control - Disable feature allows the installation of tandem KFS 599A unit so that data entries may be made from either controller.
 
Support 
As with all of our products, the KTR 909 is backed by our comprehensive 2-year “no-hassle” warranty and supported by a comprehensive worldwide dealer network.

Technical Specifications

Environmental: RTCA DO160C ENV CAT (909B)
A2D2/A/MNB/E XXXXXZBABA/TR/AZ
XXE3/XX
Temperature Range:  -55ºC to +55ºC
Altitude Range:  Up to 55,000 ft.
Physical Dimensions  
Height:  5.00 in. (12.70 cm)
Width:  1.75 in. (4.45 cm)
Length:  13.15 in.(33.40 cm)
Weight:  3.5 lbs. (1.59 kg)
Power Consumption  
Receive:  27.5 V dc at 1.0 A max.
Transmit:  27.5 V dc at 10.0 A max.
Frequency Range: 225 MHz to 399.975 MHz in 25 kHz increments
Transmitter Power Output: NLT 8 W (10 W Nominal) all frequencies. (25ºC )
Duty Cycle: 4:1 (4 min receive – 1 min transmit).
Modulation Capability: NLT 85% and NMT 98%
Sidetone Output: Up to 100 mW into 500 Ohm
load (adjustable).
Harmonic Content: Greater than 55 dB down from carrier level.
Spurious Outputs: N LT 60 dB below carrier level.
Microphone:  Dynamic with transistorized preamp or carbon.
120 mVRMS into 100 Ohm load.
Main Receiver Sensitivity: 3μV for NLT 6 dB signal plus noise-to-noise
with 1000 Hz. (6μV wide band)
Selectivity: (Narrow Band): -6 dB bandwidth NLT 25 kHz with N LT 12 kHz on one side.
  -50 dB bandwidth NMT 50 kHz with NMT 27 kHz on one side.
Selectivity: (Wide Band): -6 dB bandwidth NLT 70 kHz with N LT 33 kHz on one side.
  -60 dB bandwidth NMT 145 kHz with NMT 75 kHz on one side.
Standard Audio Output: N LT 100 mW into 500 ohm load.
Standard Audio Response: NMT 6 dB variation from 350 to 2500 Hz.
Wide Band Audio Output: N LT 2.75 VRMS into 600 ohm band; balanced,
unsquelched output.
Wide Band Audio Response: NMT 6 dB variation from 70 to 25.000 Hz.
AGC Characteristics: 5 μV to 200 mV for audio level change of less than 3 dB.
Squelch:  Automatic squelch (internally adjustable carrier to noise)
with manual disable squelch override.
Spurious Responses and Cross Modulation Products:  At least 70 dB down.
Image Response: At least 60 dB down.
3rd Order IM: At least 60 dB down.
   
KFS 599A Control Head    
Temperature Range:  -20ºC t o + 5 5 º C
Environmental RTCA DO160C ENV CAT
A1D1/A/ SPB/XXXXXSZBABA
T/RAXXEZ
Temperature Range:  -20ºC t o + 5 5 º C
Physical Dimensions  
Width:  2.19 in. (5.56 cm)
Height:  2.35 in. (5.97 cm)
Depth:  5.50 in. (13.97 cm)
Weight:  1.10 lbs. (0.50 kg)
Frequency Range: 225 MHz to 399.975 MHz in
25 kHz increments 
Power Consumption: Power supplied by KTR 909
Lighting: 5 V dc at 200 mA max.
Available with and without volume control