SERVICES | SERVICES

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Esempio di simulazione Radioelettrica in telefoniaExample of Radio electrical simulation in telephony
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Esempio di copertura Radioelettrica FM o TVExample of radio electrical coverage FM or TV
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Esempio di profilo altimetrico con elissoide di FresnelExample of altitude profile with Fresnel’s ellipsoid
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Esempio di copertura radioelettrica in Google EarthExample of Radio electrical coverage on Google Earth
  • Servizi di calcoli previsionali su base orografica (DTM)Services calculations based forecasting orographic (DTM)

La nostra azienda fornisce il servizio di calcolo di copertura su base orografica ed utilizza varie tipologie di software all’avanguardia per ottenere risultati molto vicini alla realtà.
Una corretta analisi di propagazione che tiene conto dell’orografia del terreno (palazzi, ostacoli naturali e quant’altro possa ostruire l’elissoide di Fresnel) è necessaria per decidere l’idoneità di un sito trasmittente (reale o proposto).
Le moderne tecniche di simulazione si avvalgono si software DTM (digital terrain model) con risoluzioni elevate (1x1mt) e modelli di propagazione per i più svariati campi di applicazione.
Our company provides custom coverage calculations (orographic) using various types of advanced softwares to obtain results very close to reality.
A correct analysis of propagation is necessary to determine the suitability of a transmitter site (real or proposed) must take into account the orography of the terrain (buildings, mountains, obstacles…).
Modern simulation techniques using softwares DTM (digital terrain model) with high resolutions (1x1mt) and propagation models for the most different fields of application.

I modelli più usati:Most used models:

  • FRESNEL METHOD + – WOINAR METHOD
  • ITU R 370 – ITU R 525 – WIEN METHOD
  • ITU R 526 – ITU R1225 – ITU R 1546
  • ITU R 368 – ITU R533 – ITU 1147
  • OKUMURA HATA

Modelli di diffrazione geometrica:Diffraction geometric patterns:

  • BULLINGTON FRESNEL METHOD
  • DEYGOUT 94 METHOD

 

  • Collaudo impianti di antenne FM & TVIn plant test procedures

Tutti i componenti del sistema di antenna sono airproofed e testati separatamente in fabbrica.
I pannelli, Yagi, dipoli, divisori e cavi vengono sottoposti al test di VSWR e pressurizzazione. La fase elettrica di ogni cavo è testata.
TELECFE (a richiesta con costo aggiuntivo) può testare il sistema d’antenna come realmente installato sul sito finale, le prove effettuate sul nostro sito di misura comprendono:
All the components of the antenna system are airproofed and tested separately in the factory.
The panels, yagi, dipole, splitters and cables are submitted to V.S.W.R. and pressurization test. The electrical phase of each cable is also tested.
For the antenna system TELECFE shall provide (at request, with additional cost) the test of each antenna in the factory to check:

  • Diagramma orizzontale di 1 piano per il sistema d’antenna FM o tv (con equivalente sezione della torre);Horizontal pattern of 1 bay for FM antenna system (with tower section equivalent to customer mast);
  • V.S.W.R. di 1 piano.V.S.W.R. of 1 bay.

I test sopracitati, che sono effettuati ad un costo aggiuntivo, sono operati da TELECFE nel suo stabilimento attraverso le più aggiornate attrezzature per le prove sul campo del settore.
Le misure del modello sono effettuate mediante rotazione della torre completamente controllata da un sistema informatico con un software personalizzato e scritto da TELECFE – RVR da ingegneri del gruppo.
Above test, which shall be performed at additional cost, shall be provided by TELECFE in its plant through one of the most up to date field test facilities in the industry.
Pattern measurements are carried out by means of rotating tower completely controlled by a computer system with a custom software program written by TELECFE and RVR group engineers.

 

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