Posts Tagged ‘sandpiper antenna’

Sandpiper 23cm 19 Element Yagi

My relatively new Sandpiper beam is now performing well after a shaky start. It's a misnomer to sell it as anything else other than an antenna kit, to be truthful. It really does arrive as a bag of bits and two rough photocopied pages of sketchy instructions.

It didn't help that the elements were supplied in the wrong sequence with a couple of 'wild card' elements from another antenna design altogether. Marc, the manufacturer, was extremely apologetic and helpful in sending me the antenna measurements straight away by email. However, it meant the additional purchase of a metal rule and measuring callipers from our local excellent ironmonger to get cracking.

After what seemed an afternoon of measuring and re-measuring, the beam started to take form. This involved discarding one element and chopping down another to size. In the initial construction the reflector ended up as the first director. What was supposed as a reflector must have come from a 70cm design. No wonder the thing worked better sideways.

But now, all is well. Coupled with my 1W Alinco DJ-G7 I worked Stoke on Trent (2E0DDD) simplex from a local Anglesey hilltop thanks to a slight tropospheric enhancement. It seems to offer the best combination of gain and beam width. This means your calls will be heard reasonably widely with enough gain (17.1dBi). You won't be losing out too much due to de-pointing either. Its size also means that it can be supported by a modest pole/guys or tripod without offering too much windage.

I think it's possibly the most optimal solution for hilltop and portable operating.

The completed 19 element 23cm Sandpiper yagi

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