THE MARVELS OF WIRELESS.

Wairarapa Age, Volume XXXII, Issue 10026, 23 April 1910, Page 4

THE MARVELS OF WIRELESS.

"It is quite an easy matter to make a wireless'receiver'small enough to go into a pocket," said Mr J. H. A. Pike, the Arncliffe (Sydney) experimenter, when questioned on the announcement that a Munich professor bad invented a pocket wireless apparatus enabling the carrier to be called from a central wireless station. "The receiver I use as it stand on my table is only 3£ inches by 2& inches, and of course it could be made much smaller than that. It would be easy enough to wind a small coil of wire—either to a fixed length or to be tuned to any wave length. And no power is needed for receiving. I supppose he'd have to have a miniature telephone receiv-. er also to put to his ear. That would be simple enough. So far the only difficulty would be fixing the plant firmly enough to stand a lot of shaking, and that could easily be overcome. What professor Gerebotam, of Munich, must have discovered is some means of picking up waves in e fitter wj bout using an aeri[B

and an earth wire. It is possible to do without them both. ] have received messages from a friend a quarter of a mile away with both my aerial and earth wire cut out and the receiver alone standing on the. table, and I can hear ships in the harbour with either one of them cut out, but not both. Your bndy would hardly be good enough as a connection with earthat any rate, to get messages from any distance—unless you had a wire running to the ground and nails in your boots, or something of that sort. Weil, that is the difficulty which I expect Professor Gerebotam has invented a way out of. Of course general experimenta are known to have been going on, but I don't know the particulars of this one."