HF Wire

G5RV Multi-Band Dipole - NOTES

 

This section incluces various versions of the G5RV antenna. Its attraction is that it covers all the HF bands from 80m to 10m (but not the WARC bands). The total length is 102ft and has a balanced feed section of 32ft. This makes it shorter than a full size 80m antenna, which in itself is an attraction. The balanced feeder is then connected to any length of 50 Ohm coax cable. This in itslef is not good practice and really a 4:1 balun should be used at this junction of feeders. It must also be understood that the antenna will NOT be a peefect match on all these bands and there will be a significant VSWR, worse on some bands than others. In most cases the internal ATU of an HF transceiver will cope with it. If you have a particular problme, then try changing the length of the coax feeder.

 

The G5RV IS a compromise, but it works and the losses are not as great as you might imagine. It is also very cheap. Thousands are in use around the world which proves that for many, it is the best cost effective way of covering the popular HF bands.

 

Peter Waters G3OJV

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Items 1 to 20 of 31 total

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