MT-MR PLATINUM. POINT TO POINT AURAL RADIO RELAY SYSTEM
6
MT-MR PLATINUM
POINT TO POINT AURAL RADIO RELAY SYSTEM
T
T
A
A
B
B
L
L
E
E
O
O
F
F
C
C
O
O
N
N
T
T
E
E
N
N
T
T
S
S
Chapter Description Page
I.- ...................................................................................... Previous Path Calculations .................................................................................................... 7
1.1.- Introduction ...................................................................................................................... 7
1.2.- Free Space Attenuation ................................................................................................... 7
1.3.- Path Profile Analysis ....................................................................................................... 8
1.4.- Fresnel or Phase Zones ..................................................................................................10
1.5.- Transmission Lines ..........................................................................................................13
1.6.- Calculation of Antennas ...................................................................................................14
1.7.- Parameters of Interest in Link Analysis.......................................................................... 16
II.- ......................................................................................General System Description .................................................................................................... 19
2.1.- Introduction ..................................................................................................................... 19
2.2.- System Technical Specifications ................................................................................... 21
III.- ..................................................................................... The MT Platinum Link Transmitter ......................................................................................... 22
3.1.- Description ..................................................................................................................... 22
3.2.- Transmitter Technical Specifications ............................................................................ 23
3.3.- Audio Processor Unit ...... ............................................................................................. 25
3.4.- VCO & PLL Unit ............................................................................................................ 25
3.5.- Microcontroller or Control Unit & Attached Display ....................................................... 26
IV.- ..................................................................................... The MR Platinum Link Receiver ............................................................................................ 27
4.1.- Description .................................................................................................................... 27
4.2.- Technical Specifications .............................................................................................. 28
4.3.- Receiver Performance......................... ........................................................................ 30
V.- ........................................................................................ Installation and Operation of Aural Link ............................................................................... 32
5.1.- Installation and Checks................................................................................................. 32
5.2.- Operation and Maintenance ....................................................................................... 35
VI.- ....................................................................................... Lists of Parts & Components. Schematics ........................................................................... 36
Appendix I……………………………………………………..... Polarization voltages and currents in the amplifiying modules of MT Platinum
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