Saturday, April 30, 2011

What's this ? II

Here's another question, this time I know the answer...


The location is "Cabo Carvoeiro" (Cape Carvoeiro) located near the city of Peniche and of course the building is a lighthouse so that doesn't count as an answer, the antenna is a T type being the top part made of 2 parallel cables (lenght is 92m height is 27m), so could be probably a simple T with more bandwidth or sort of a terminated loop. There's also the possibility of beeing 2 antenas in redundance! Sory but I don't have more exact technical details.
The question is: what's the purpose of the antenna?

Anyhow the late antenna is almost as good as the HF one I putted in my alternative shack.... made in 20 minutes...

can't get more simple than this...2 pieces of wire forming a dipole. Not perfect but much better than using the VHF antenna (it was for reception only!)...

Meanwhile I have been busy with other stuf so you have to wait for some more solderings... maybe next week.

2 comments:

pedro said...

Essa pergunta so pode ter ser dirigida a mim !! Mas cá vai .... É uma das duas antenas do sistema de DGPS Portuges a outra está em Sagres;)
»» http://www.anmpn.pt/informacoes/2002/rede_dgps.htm

This question can only have be addressed to me! But here goes .... It is one of two antennas of the portuguese DGPS system the other one is in Sagres;)
»» http://www.anmpn.pt/informacoes/2002/rede_dgps.htm

Ricardo - CT2GQV said...

Yups, it's a differencial GPS antenna running on 311,5 Khz.

More info about DGPS here:
http://en.wikipedia.org/wiki/Differential_GPS