Saturday, May 14, 2016

40m doublet antenna - excellent

This weekend some antenna work. I've put up an open wire fed "doublet" antenna for 40m and of course all bands up from that. The centre insulator is made from a piece of perspex.

The open wire ladder line runs down to the shed and terminates to a 4:1 balun I previously used for an off centre fed antenna. From the balun it goes into a transceiver with internal tuner that is able to tune it on all bands from 40m up.

The tree holds a few other antennas including an inverted L for 80m, and one end of a half G5RV.

So far my observation is that noise is low and signals are big, it's great to have the flexibility of multiple bands in one simple antenna.

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