TV TRANSMITTERS AND AMPLIFIERS

SUMMARY OF THE TV EQUIPMENTS PRESENTED IN THE SITES NAME OF THE EQUIPMENT

COMPOSED OF: VAM TIX U5

TTU 1000 LD TAU 1000 LD

TTU 2000 LD

VAM TIX U5 COMBINING UNIT 2 units of TAU 1000 LD VAM TIX U5 TAU 25

TTU 5000 LD

DESCRIPTION TV MODULATOR IF TO CHANNEL CONVERTER LD SERIES MEDIUM/HIGH POWER AMPLIFIER (1000 W) - UHF IV° AND V° BAND TV MODULATOR IF TO CHANNEL CONVERTER LD SERIES MEDIUM/HIGH POWER AMPLIFIER (1000 W) - UHF IV° AND V° BAND TV MODULATOR IF TO CHANNEL CONVERTER LD SERIES LOW POWER AMPLIFIER (25 W) - UHF IV° AND V° BAND

COMBINING UNIT 4 units of TAU 1500 LD

LD SERIES MEDIUM/HIGH POWER AMPLIFIER (1500 W) - UHF IV° AND V° BAND

TTU 5000 LD AMPLIFIER

TTU 5000 LD FRONT VIEW

TTU 5000 LD AMPLIFIER SECTION BLOCK SCHEMATIC

PHOTO OF THE COMBINER AND THE FILTER

VAM MODULATOR

FRONT VIEW

1) ON led indicator 2) Measure led display 3) Measure type selector 4) Video measurement (f.s. 1.5Vpp) 5) Sync measurement (f.s. 450mVpp) 6) Audio 1 measurement (f.s. 150KHzpp) 7) Audio 2 measurement (f.s. 150KHzpp) 8) Positive voltage measurement (f.s. 22.5V)

9) Negative voltage measurement (f.s. 22.5V) 10) Audio input level led indicators 11) Carrier 1 on/off selector 12) Preemphasis Carrier 1 on/off switch 13) PLL Lock led on Carrier 1 indicator 14) Carrier 2 on/off selectorZ 15) Preemphasis Carrier 2 on/off switch 16) PLL Lock led on Carrier 2 indicator

REAR VIEW

1) Power supply switch 2) Ground connector 3) Sync Pulses Missing output 4) BNC 50Ω Aux. Ext. Vision carrier input 5) BNC 50Ω Vision carrier output 6) BNC 50Ω video output 7) BNC 50Ω video input 8) Video level adj trimmer 9) BNC 50Ω IF monitor 10) BNC 50Ω IF output

11) IF Video adj level trimmer 12) IF Audio 1 adj level trimmer 13) IF Audio 2 adj level trimmer 14) BNC 50Ω audio carrier output 15) XLR 600Ω audio 1 input 16) Audio 1 level adj trimmer 17) BNC 50Ω audio carrier output 18) XLR 600Ω audio 2 input 19) Audio 2 level adj trimmer

VAM BLOCK DIAGRAM

FREQUENCY RESPONSE OF THE VESTIGIAL SIDEBAND FILTER (VSB)

RELATION OF VISION, COLOUR AND SOUND CARRIES (VC, CC, SC)

PHOTO OF THE VAM MODULATOR INTERNAL VIEW

TIX IF CONVERTER

FRONT VIEW

1) BPF/I Filter RF Input 2) Down-Converter AGC automatic/manual switch 3) Down Converter IF Output 4) Down Converter AGC manual adj. trimmer 5) Down Converter AGC LED 6) Up Converter AGC automatic/manual switch 7) Up Converter IF Input 8) Up Converter AGC manual adj. trimmer

9) Up Converter AGC LED 17) Down Converter RF Input 10) BPF/O RF Output 18) Knee Adj. trimmer 11) Power Module RF Out N Connector 19) Lin Precorrector Adj. trimmer 12) Meter 20) AGC Level Adj. trimmer 13) BPF/I Filter RF Output 21) Up Converter RF Out Adj. 14) Down Converter Lock LED 22) Up Converter RF Output 15) Down-Converter Squelch LED 23) Slope Adj. trimmer 16) Down Converter Squelch Adj. trimmer 24) IF Threshold Adj. trimmer

25) Up Converter Lock LED 26) BPF/O Filter RF Input 27) Power Module RF Input 28) RF Monitor 29) Measures Selector

REAR VIEW

1) Mains fuse

2) IF Input SMB Connector

3) ON/OFF Main Switch

IF TO CHANNEL CONVERTER MODULE INTERCONNECTIONS

TIX BLOCK DIAGRAM

RELATION OF VISION, COLOUR AND SOUND CARRIES (VC, CC, SC) AND OF VESTIGIAL SIDE BAND (VSB) AND UPPER SIDEBANDS (USB)

TTU 25 DRIVER

FRONT VIEW

1) RF Monitor BNC connector 2) RF Input N connector 3) Overheat LED indicator 4) Overdrive LED indicator 5) VSWR LED indicator

6) Shut-down LED indicator 7) Power ON LED indicator 8) Measure Instrument 9) Measure Select push button

TAU 1500 LD AMPLIFIER

FRONT VIEW

1) On/off power status indicator 2) Shut Down indicator (with remote board only) 3) VSWR alarm indicator

4) Overdrive alarm indicator 5) Over-temperature alarm indicator 6) RF Monitor connector 7) LCD Measure meter with Measure Select botton

REAR VIEW

1) On-Off Authomatic Switch2) Mains AC power supply connector 3) GND

4) ENABLE connector 5) Remote control connector 6) AGC OUT connector

7) RF input N connector 8) RF output DIN 7/16” connector 9) AC to Driver connector

RF STAGE

1) LD-MOS amplifier modules 2) Input wilkinson splitter 3) Output connection point 4) Output wilkinson coupler 5) Output hybrid coupler

6) Output wilkinson coupler 7) Input wilkinson splitter 8) Input hybrid splitter 9) LD-MOS amplifier driver module 10) Input power limiter board

POWER SUPPLY STAGE

1) Switching power supply Nr.1 2) LCD Meter board 3) Switching power supplys 4) Remote control optional board

5) Protection board 6) Directional coupler board 7) Fuses

RF STAGE BLOCK DIAGRAM

PHOTO OF THE INTERNAL VIEW (RF STAGE)

PHOTO OF THE INTERNAL VIEW (POWER SUPPLY STAGE)

TAU 1000 LD AMPLIFIER

TAU 1000 LD AMPLIFIER FRONT VIEW

1) RF Input N connector 2) Measure Instrument 3) Measure Select push button 4) RF Monitor BNC connector 5) Overheat LED indicator

6) Overdrive LED indicator 7) VSWR LED indicator 8) Shut-down LED indicator 9) ON/OFF Main LED indicator

TAU 1000 LD AMPLIFIER REAR VIEW

1) ON/OFF Mains Switch 2) RF Input N connector 3) AUX DB9 connector (Optional) 4) REMOTE DB9 connector (Optional) 5) ENABLE DB9 connector (Optional)

6) RF Output DIN 7/16” connector 7) Fan 8) Fan 9) Mains Power Supply Connector

TAU 1000 LD AMPLIFIER TOP VIEW

1) 2) 3) 4) 5)

Fan RF Output DIN 7/16” connector RF Input filter DIN 7/16” connector Fan Output Bandpass-notch filter

6) Output coupler 7) LD-MOS amplifier module 8) 20 W p.s. driver module 9) Input Splitter 10) LD-MOS amplifier module

TAU 1000 LD AMPLIFIER BOTTOM VIEW

1) Switching Power Supply Nr.1 2) Switching Power Supply Nr.2

3) Protections and logic boards 4) Measure Instrument boards

TAU 1000 LD BLOCK DIAGRAM