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All posts for the month July, 2012

Here’s some pictures of an antenna I build for a local repeater site a few years back. Its a relative wide band design where VSWR is under 1.5:1 over 30+ MHz and the gain is up to around 7dBi at max. Antenna has worked flawlessly for several years high up on a mountain top in icy and windy conditions.
Antenna are made of TIG welded pipes of square stainless steel.
I have not designed this antenna by my self, its a replica of a commercial product, but with a few modifications when it comes to material used and physical dimension of the antenna and phasing network to lower the frequency a bit.