1er "QSO TKNet"
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- Hits: 2852
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Le 23 novembre 2022 s'est tenu le 1er "QSO de section TKNet", comme convenu lors de l'assemblée générale. |
New repeater TK5ZME on air
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On May 22, 2022, our friends Thierry TK1CX and Christophe TK4TO installed and put in service a new VHF repeater: TK5ZME.
It is located in the village of Antisanti in JN42QE to approximately 700 m of altitude.
The access of the relay is on the channel R4x, 145,7125 Mhz with a TCS of 88,5 Hz
The map below should give a fairly accurate idea of the expected coverage.
This repeater is connected to the TKNet network which currently has 4 repeaters.
New radiosonde tracking system installed
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- Hits: 3120
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On January 22, 2022, an automated tracking system for weather balloons, also called radiosondes, was commissioned at the Coti-Chiavari site. The set consists of a Raspberry 3, a USB RTL SDR, a 403 MHz band filter and an omnidirectional antenna. Everything was installed in a rack drawer in the main bay of the site. The first tests are encouraging, the receiver decodes the frames emitted by the radiosondes as soon as they are launched and until the loss of the signal which varies according to the direction taken by the balloon |
New UHF repeater TK5ZCA
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- Hits: 14023
A new repeater located next to Valle-di-Campoloro JN42SI30 has been connected to the TKNET network.
The frequencies are 430.0375 MHz on transmit and 439.4375 MHz ont receive, both with a TCS of 88.5 Hz.
The first reports and tests are confirming a good coverage on a large part of the eastern plain, especially the T10.
Technical side: This repeater is the first to use the new TKNET interface card.
The transmission power is 7 Watts, the receiver has excellent sensitivity but is designed for a channel spacing of 12.5 kHz. Stations wishing to use the repeater must therefore limit their frequency deviation in order not to suffer from distortion...
Updates on repeater TK5ZCF
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- Hits: 14243
On March 30, 2021, TK1BI & TK5EP spent a few hours on our "Punta" site.
A new Procom CXL2 antenna with a gain of 3 dB was installed on the new tower. This one is bigger and more stable than the older one that gave some signs of weakness and showed reduced coverage.
The tower was also earthed and a new connection to the TKNET network has been done. It remains to connect the grouns of the building in order to have equipotentiality of the different earths and to finish laying the cable trays.
New USB audio interface for our repeaters
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- Hits: 5398
A new version of the USB audio VoIP interface to drive our repeaters has been build by Patrick TK5EP.
It carries a CM119A chip that takes care of the USB communication, the VoIP conversion and the I/O ports.
Read his article on his Web page
Here a 3D view on this interface board.
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