Posts Tagged ‘Hexbeam’

Portable Hexbeam v’s Cobwebb

After a few more weeks of not getting on the air I managed to man handle the portable Hexbeam up to about 4 above ground level (Note: must get that tilt base sorted out) to compare it against the Cobwebb I have in the loft.

So before we go down the ‘It’s not scientific’ route. I’m ok with that, no big deal its just a bit of fun.

There are some significant differences between the two antennas that I hadn’t fully appreciated. Firstly the noise levels on the Cobwebb were quite a bit higher, which seemed to make the Hexbeam sound quiet, when in actual fact there was no significant difference on the higher bands when it comes to S points. But, the lower noise levels made it much nicer to use. The image below shows what I mean. There is a band of ‘mush’ slap bang in the middle where I switched onto the Cobwebb. Just so you know, the Cobwebb was way quieter than the vertical I had before.

cuSDR Hexbeam vs Cobwebb

It’s not a huge visual difference on the screen but the ears make it obvious. The gain on the Hexbeam made it easy to make contacts with C06LA answering on the first call, I’d never expect that on the Cobwebb.

You can also see that the signal strength is fairly similar, that was W4UH calling CQ.

So not much in it when the Hexbeam is really low, I’m sure it’ll beat the pants off the Cobwebb at 12m but interesting to see that the Cobwebb is ‘noisier’. Especially as I thought it was quite a quiet antenna.

Portable Hexbeam

Saturday saw me opening a beer celebrating finishing off the new decking area…which means….Sunday saw me finishing off my portable hexbeam from Folding Antennas. The build took quite a while, about 8 for the hardware and about 3 for the layout and tuning. I’ve not used it much in anger as the rains started coming.

An early doors write up is here…..but so far its looking worth the build time. Here’s a shot of the half finished decking…oh and a half finished antenna.

2014-03-25 12.10.50


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