ATV repeater F5ZAJ

Place of installation: Marseille

Administrative person in charge: F6CLZ

Technical coordinator: F6DBU

Video sources:

• Input 10 320 MHz horizontal polarization receiving from F1ZGM in Nimes
• Input 1250 MHz horizontal polarization receiving fromAix and Marseille
• Input 2320 MHz horizontal polarization receiving from Aix
• Input 2320 MHz horizontal polarization receiving from Marseilles
• Local test card with callsign
• Video tape recorder

Reception on 10 GHz:

• Antenna: 80 cm parabola
• Modified satellite head
• Satellite receiver modified to always start on the good channel

Reception on 1250 MHz:

• Antennas: quadruples quad in front of reflectors
• Preamplifier at the antenna
• Satellite receiver modified to always start on the good channel

Receptions on 2320 MHz:

• Antennas: quadruples quad in front of reflectors
• Preamplifier at the antenna
• Satellite receiver modified to always start on the good channel

Transmitter on 1250 MHz:

• Frequency 1250 MHz
• Sub carrier 6,5 MHz
• Power 1,5 W
• Antenna: doubles quad in front of reflectors
• Horizontal polarization
• Direction Aix and Marseille

Transmitter on 10385 MHz:

• Frequency 10 385 MHz
• Sub carrier 6,5 MHz
• Power 40 mW
• Antenna: parabola 1m
• Vertical polarization
• Direction towards F5ZFI in Nimes

Remote controls:

The repeater is controlled by DTMF codes on a VHF frequency; the infrastructure of the system being rather complex, the menu of exploitation is available by the persons in charge, or during at a quarterly regionalATV meeting.

Uses:

• The Marseilles stations can be retransmitted towards Aix on 1250 when they transmit on 2320, and reciprocally.
• 10320 signals coming from F1ZGM (Nimes) can be returned on Marseilles and Aix.
• The signals coming from Marseilles or Aix can be returned into 10385 towards F5ZFI (Nimes).
• The video tape recorder, accessible also by DTMF is very practical to control its own modulation.

Projects:

• Input 438,5 MHz
• " Web camera "

Reference on the 10 GHz

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© 1999-2011 A. Ducros F5AD