Operation and Installation Manual
KRT2 VHF-Communication Transceiver
Doc.-No: KRT2.A-MAN.en
Rev. 0101
Page
5
6.3
FCC related issues .......................................................................................................... 33
6.3.1 Radiofrequency radiation exposure Information: .......................................................... 33
6.3.2 Note: ............................................................................................................................ 33
6.3.3 Compliance.................................................................................................................. 33
6.3.4 Modifications ................................................................................................................ 33
6.4
Scope of delivery ............................................................................................................. 34
6.5
Unpacking and inspecting the equipment ........................................................................ 34
6.6
Mounting ......................................................................................................................... 34
6.7
Electrical connections ...................................................................................................... 34
6.7.1 Microphone connection ................................................................................................ 35
6.7.2 Speaker & open microphone: ...................................................................................... 36
6.7.3 Earphone connection ................................................................................................... 36
6.7.4 External audio input ..................................................................................................... 36
6.7.5 Speaker connection ..................................................................................................... 36
6.8
Final audio setup ............................................................................................................. 37
6.8.1 For glider flights ........................................................................................................... 37
6.8.2 For motor gliders dual seaters ..................................................................................... 37
6.8.3 For motor planes ......................................................................................................... 37
6.9
Wiring .............................................................................................................................. 38
6.9.1 Wire Gauges ................................................................................................................ 38
6.9.2 Connector Pin-Configuration ........................................................................................ 38
6.9.3 General hint ................................................................................................................. 39
6.9.4 Wiring diagrams ........................................................................................................... 40
6.9.5 Wiring for dynamic microphones .................................................................................. 46
6.9.6 Connection support ST1 mating connector .................................................................. 46
6.10 Antenna ........................................................................................................................... 47
6.10.1 Antenna selection .................................................................................................... 47
6.10.2 Installation recommendation .................................................................................... 47
6.11 Microphone general ......................................................................................................... 48
6.12 Post-Installation Check .................................................................................................... 48
6.13 Starting Up ...................................................................................................................... 49
6.14 Accessories ..................................................................................................................... 49
6.15 Drawings ......................................................................................................................... 49
6.15.1 Dimensions .............................................................................................................. 49
6.15.2 Installation directions ............................................................................................... 51
7. Maintenance ........................................................................................................................... 52
7.1
Periodic Maintenance ...................................................................................................... 52
7.2
Repair .............................................................................................................................. 52
7.3
Cleaning .......................................................................................................................... 52
8. ANNEX.................................................................................................................................... 53
8.1
Frequency / channel - schedule ....................................................................................... 53
8.2
Technical Data ................................................................................................................ 54
List of Figures
Figure 1: KRT2-S Front View ............................................................................................................. 10
Figure 2: KRT2-P front view ............................................................................................................... 11
Figure 3: KRT2-L front view ............................................................................................................... 12
Figure 4: KRT2 active & standby frequencies .................................................................................... 26
Figure 5: KRT2 TX & RX operations .................................................................................................. 27
Figure 6: Headsets ............................................................................................................................. 35
Figure 7: Connector pinout ................................................................................................................. 38
Figure 8: Remote control pinout ......................................................................................................... 38
