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User & Installation manual 

VHF- Communication Transceiver 

 

Doc.-Nr.: 
DE-3000-800100e 

 

KRT2, KRT2M, KRT2RC

 

Revision  13.0 

Jul. 2016 

 

7   /   67 

 

1 

GENERAL 

 
This  manual  contains  information  about  the  physical,  mechanical  and 
electrical  properties  as  well  as  a  description  for  the  operation  and 
installation of the VHF airborne transceiver KRT2. 
 

1.1  Symbols 

 

 

WARNING 
Non-compliance may cause personnel injury due to radiation 
or fire. 

 
 

 

CAUTION 
Non-compliance may cause damage or incorrect operation of 
the transceiver. 

 
 

   

INFORMATION 
 

 
 

 

 

Содержание AirPlus 100 KRT2 Series

Страница 1: ...n Transceiver Doc Nr DE 3000 800100e KRT2 KRT2M KRT2RC Revision 13 0 Jul 2016 1 67 KRT2 KRT2 Mini KRT2RC VHF Communication Transceiver P N 100 0XXX KRT2 P N 100 1XXX KRT2MH P N 100 2XXX KRT2MV P N 110...

Страница 2: ...2013 Text corrections new cable drawings 9 4 Okt 2013 Text corrections 9 5 Nov 2013 New favorites management 9 6 Mai 2014 Menu limitation PTT Mic assignment Installation limitations Text corrections M...

Страница 3: ...Jul 2016 3 67 List of Service Bulletins SB Service Bulletins have to be inserted in the manual and entered in the table SB Number Rev No Date Issued Date Inserted Name Unit overview Item No Product O...

Страница 4: ...vorites List 20 4 3 3 Storing and Editing Favorites 20 4 4 AUD Audio Menu 23 4 4 1 VOL Volume 23 4 4 2 SQ Squelch 23 4 4 3 VOX Intercom Voice Trigger Level Setting 24 4 4 4 Manual Intercom 24 4 4 5 TX...

Страница 5: ...8 4 Wiring Diagram 49 6 8 4 1 Two place motor aircraft connection 49 6 8 4 2 Glider two place connection 50 6 8 4 3 Glider single 51 6 8 4 4 Motor glider single 52 6 8 4 5 Motor glider dual Dynamic Mi...

Страница 6: ...2 Menu Lock 30 Figure 9 KRT2 Active Standby frequencies 32 Figure 10 KRT2 TX RX operations 33 Figure 11 Telecommunication data 40 Figure 12 Small parts 40 Figure 13 Head sets 43 Figure 14 Connector pi...

Страница 7: ...ains information about the physical mechanical and electrical properties as well as a description for the operation and installation of the VHF airborne transceiver KRT2 1 1 Symbols WARNING Non compli...

Страница 8: ...Check DC source DIM Dimming Display brightness setting EXT External audio input External Audio input level setting INT Intercom level Intercom volume level setting PTT Push to Talk Transmitter activat...

Страница 9: ...eciated at info dittel tq group com Information concerning software updates is available under support krt tq group com 1 4 KRT2 Transceiver properties VHF airborne transceiver Frequency range 118 000...

Страница 10: ...E TSO standards E TSO articles must have separate approval for installation in aircraft 2 1 Installation For installation hints data electrical connections and mounting instructions please see section...

Страница 11: ...e Identification In accordance with EASA regulations the goal is a safety objective for the VHF COM radio in the KRT 2 VHF Communication Transceiver System of 1 x 10E 4 per flight hour for Class I Air...

Страница 12: ...User Installation manual VHF Communication Transceiver Doc Nr DE 3000 800100e KRT2 KRT2M KRT2RC Revision 13 0 Jul 2016 12 67 3 CONTROL general 3 1 Control Elements Overview Figure 2 KRT2 Front view...

Страница 13: ...sion 13 0 Jul 2016 13 67 Figure 3 KRT2Mini Front view All functions and performances of the normal size unit 57mm round and the Portrait format Mini are identical The only differences are the text are...

Страница 14: ...programming the station identifier FAVORITES 1 Frequency and identifier selection from the favorites list 2 Programming of favorites frequency and identifier EXCHANGE Exchange of the Active and Standb...

Страница 15: ...t VOL Receiver volume level default after a certain time delay When AUD is pressed the corresponding Audio Menu item and setting is displayed DUAL Active frequency AND Standby Frequency are monitored...

Страница 16: ...ercom switch active MUC IN Standby frequency station identifier Displayed when frequency and identifier are stored in the favorite list Figure 5 KRT2 Display 3 3 Menu levels Displayed Signification Re...

Страница 17: ...ation limited Return the transceiver for maintenance Er_FPA Internal error unit not usable Return the transceiver for maintenance Er_I2C Internal error unit not usable Return the transceiver for maint...

Страница 18: ...ting mode can be left by pressing the AUD FREQ or MEMORY button When not in the normal mode and there is no pilot action for more than 10 seconds the unit returns to the normal mode 4 2 ON OFF Switchi...

Страница 19: ...The selected range is highlighted and can be changed with the FREQ button Frequency ranges are 1xx nnn 1nn xnn 1nn nxx Press the FREQ button once or several times until the desired frequency range is...

Страница 20: ...e 4 3 3 Storing and Editing Favorites To exit this menu press the key The selection procedure can be terminated with either the AUD or FREQ buttons Without pressing any of these buttons the unit will...

Страница 21: ...t input procedure to edit the frequency see 4 3 1 Direct Frequency Selection To quite the frequency input press the MEMORY button again in order to go to the station identifier window for editing the...

Страница 22: ...MEM button is pressed at the time RUN nn is displayed the sorting procedure is terminated The favorite list is then partially sorted and the transceiver resumes its normal operating mode Example 1 But...

Страница 23: ...ill result in the VOLnn being displayed Audio Menu items can be accessed in the following order by repeatedly pressing the AUD button VOL default SQ VOX TXm INT EXT DIM BATtst SIT MIC Audio menu items...

Страница 24: ...m The intercom voice trigger level must be set to a value which prevents normal cockpit noise from being heard in the earphones The intercom system should only be activated when talking at a normal vo...

Страница 25: ...On transmission the microphone which is related to the PTT L R will be enabled The equivalent indication is TX or TX1 TX2 On transmission the PTT L R related microphone will be the only one activated...

Страница 26: ...Brightness Pressing the AUD button six times enables the turning knob to set the display brightness DIMnn Range 01 16 The display consumption at 12V is 70mA max and 10mA min In addition the battery vo...

Страница 27: ...a service mode and it is not designed for normal operation Each of the two microphone input channels can be configured individually which enables different microphone types to be used A maximum of two...

Страница 28: ...then be at about 50 Special hint During MIC Setup activation the speaker state will be taken into account SQU on off if the state is active an acoustic feet back may be heard The range of the MIC leve...

Страница 29: ...annel is unaffected When returning to the standard configuration the original L and R values are restored A simultaneous operation on Electret and Dynamic microphones is not possible there is just one...

Страница 30: ...ne has been recognized and activated after transmission In that case the intercom voice triggering level VOX is set to 10 switched off To reactivate the intercom after a microphone change a short pres...

Страница 31: ...There must be radio noise suppression in order to recognize reception The squelch level SQ must be set to 2 or higher When DUAL watch is activated DUAL is displayed on the lowest line The pointer nex...

Страница 32: ...ged when in the DUAL mode The transmitter operates on the Active frequency only Summary Select the Standby frequency to be monitored in addition to the active frequency With the AUD button and turning...

Страница 33: ...ilable on gliders when no earphones are in use In order to avoid the blocking off of the frequency by unintentional long transmissions stuck microphone the transmitter is switched off after two minute...

Страница 34: ...5 TXm PTT Switch Selection 4 6 2 Self Test monitor Software diagnostics operate continuously in the background in order to test the system The field for battery status error see Control Elements Over...

Страница 35: ...ers where headsets are generally not worn and thus no side tone is heard it is very helpful to see if the microphone is operating properly At left lower side there is a modulation indicator that depic...

Страница 36: ...g to the factory settings takes place When resetting is completed DONE is displayed 4 8 SET UP Menu During power up the MEM button must be pressed The message protect mode is displayed just wait until...

Страница 37: ...starts after the button has been pressed again This procedure may last a few minutes during which time the message ERASING is displayed All INFO frequencies and identifiers that were stored on deliver...

Страница 38: ...R_Time Time out transmission error R_ChkS Checksum error R_Cmd Unknown command R_Char Data error R_Freq Wrong Frequency The error message disappears when a valid command or a new frequency has been i...

Страница 39: ...um performance standards Those installing this article on or in a specific type or class of aircraft must determine that the aircraft installation conditions are within the ETSO TSO standards ETSO TSO...

Страница 40: ...1O 10058303 Part Number P N 100 0XXX XXX KRT2 P N 110 XXXX XXX KRT2RC P N 100 1XXX XXX KRT2MH P N 100 2XXX XXX KRT2MV Power Output 6 W Frequency 118 000 136 975 MHz Emission Identifier 6k00A3E for 25k...

Страница 41: ...installing the unit in the vicinity of heat sources Sufficient air circulation is required There must be sufficient space for cables and connectors Avoid sharp bends and wiring close to control cable...

Страница 42: ...phones a supply voltage of 8V at 330 is provided Elementary Electret microphones can also be connected They have considerably lower signal levels and therefore require an 8V supply voltage The microph...

Страница 43: ...ts accordingly Both inputs L and R must not be wired together L is the master input Figure 13 Head sets Because the 8V supply voltage is switched off when dynamic microphones are used during glider fl...

Страница 44: ...n be connected in parallel The total impedance should not be less than 60 Ohms 6 6 4 External Audio Input Audio alarms can be made available via the external audio input When this input is not used it...

Страница 45: ...d the unused MIC R input if unused 6 7 1 For glider flights Press button AUD 3x for VOX Set to VOX 10 turn off or open the intercom switch indicating e Press button AUD 4x for TXm Set to TXm Press but...

Страница 46: ...ton AUD 6x for EXT o Set to EXT 00 turn off or on condition Press button AUD 10x for MIC o Set MIC L to level 5 or as required o Set MC R as required or to 1 if unused o Select AUTO and leave menu 6 7...

Страница 47: ...M KRT2RC Revision 13 0 Jul 2016 47 67 6 8 Wiring 6 8 1 Wire Gauges Supply lines Power GND AWG18 0 83 mm Control lines AWG22 0 38 mm All wires must be aviation certified 6 8 2 Connector Pin Configurati...

Страница 48: ...he nine pins connector on the KRT2RC is used for the connection to the KRT2 6 8 3 General hint The following drawings are not covering all possible configurations There are too many different micropho...

Страница 49: ...Communication Transceiver Doc Nr DE 3000 800100e KRT2 KRT2M KRT2RC Revision 13 0 Jul 2016 49 67 6 8 4 Wiring Diagram 6 8 4 1Two place motor aircraft connection Microphone Setup set L R as required for...

Страница 50: ...User Installation manual VHF Communication Transceiver Doc Nr DE 3000 800100e KRT2 KRT2M KRT2RC Revision 13 0 Jul 2016 50 67 6 8 4 2Glider two place connection Microphone Setup leave in L 11 not AUTO...

Страница 51: ...User Installation manual VHF Communication Transceiver Doc Nr DE 3000 800100e KRT2 KRT2M KRT2RC Revision 13 0 Jul 2016 51 67 6 8 4 3Glider single Microphone Setup leave with L 11 for dynamic not AUTO...

Страница 52: ...KRT2M KRT2RC Revision 13 0 Jul 2016 52 67 6 8 4 4Motor glider single Microphone Setup For Electret set L R as required for headset do not leave in AUTO mode For Dynamic use a switch to cut off the dyn...

Страница 53: ...al VHF Communication Transceiver Doc Nr DE 3000 800100e KRT2 KRT2M KRT2RC Revision 13 0 Jul 2016 53 67 6 8 4 5Motor glider dual Dynamic Microphone Dynamic Microphone Microphone Setup R for headsets le...

Страница 54: ...Communication Transceiver Doc Nr DE 3000 800100e KRT2 KRT2M KRT2RC Revision 13 0 Jul 2016 54 67 6 8 4 6Motor glider dual Electret Microphone Electret Microphone Microphone Setup leave L 3 9 in case of...

Страница 55: ...re Never connect the power current grounds with the microphone ground The cleanest GND is the case of the radio Connect the battery GND to the case and pin 1 and the microphone GND to the pin 9 only s...

Страница 56: ...es must have installed a metal sheet foil or mesh of at least 80 80 cm inside the fuselage as electric counterweight In order to avoid interference the distance between a COM an NAV antenna or between...

Страница 57: ...ould be set so that it is not triggered by normal cockpit noise In addition VOX should be set to level 01 and the intercom switch permanently enabled The manual intercom operation is possible with one...

Страница 58: ...g wave ratio SWR must be less than 3 1 A test flight is recommended to verify proper transceiver operation The following items should be checked Check transceiver operation with a radio station at lea...

Страница 59: ...ver Doc Nr DE 3000 800100e KRT2 KRT2M KRT2RC Revision 13 0 Jul 2016 59 67 6 13 Accessories Suitable accessories such as antennas cable sets and switches can be purchased at our online shop on http www...

Страница 60: ...stallation manual VHF Communication Transceiver Doc Nr DE 3000 800100e KRT2 KRT2M KRT2RC Revision 13 0 Jul 2016 60 67 6 14 Drawings 6 14 1 Dimensions Figure 17 KRT2 Dimensions Figure 18 KRT2M Mini Dim...

Страница 61: ...User Installation manual VHF Communication Transceiver Doc Nr DE 3000 800100e KRT2 KRT2M KRT2RC Revision 13 0 Jul 2016 61 67 Figure 19 KRT2RC Remote Control Dimensions...

Страница 62: ...VHF Communication Transceiver Doc Nr DE 3000 800100e KRT2 KRT2M KRT2RC Revision 13 0 Jul 2016 62 67 6 14 2 Installation Directions Connection Area Panel Cut out Figure 20 KRT2 Panel Cut out Figure 21...

Страница 63: ...scheduled service tasks required on the KRT 2 VHF unit 7 2 Repair Only exchange and flat repair of the equipment is permitted In case of equipment failure the unit must be sent to the manufacturer Re...

Страница 64: ...cy MHz Cannel Spacing kHz Displayed channel 8 33 25 kHz Mode Displayed Channel 25 kHz Mode 118 0000 25 118 000 118 000 118 0000 8 33 118 005 118 0083 8 33 118 010 118 0166 8 33 118 015 118 0250 25 118...

Страница 65: ...nsions 57mm case Height 62mm Width 62 mm Depth 146mm plus rear panel plugs 60mm Dimensions Portrait Height 64mm Width 46 mm Depth 150mm plus rear panel plugs 60mm Dimensions Landscape Height 46mm Widt...

Страница 66: ...VDC to 33VDC test 13 8VDC Transmitter 2 0 A typ Receiver 0 13 A Illumination 0 01A to 0 07A Audio Power amp Up to 1A emergency operation 9 VDC Power Consumption Standby 1 6W Transmit 30 W Frequency Ra...

Страница 67: ...1kHz at m 70 1kHz Duty Cycle 2 minutes on 4 minutes off automatic turn off after 2 minutes continuous transmitter operation RECEIVER Sensitivity 105 dBm 6 dB S N N m 30 1 kHz Bandwidth 25 KHZ 6 dB ban...

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