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Since no license is needed for a receiving set the easiest way to break into the wireless game is to put up an aerial and hook up a receiving set to it; you can then listen-in and hear what is going on in the all-pervading ether around you, and you will soon find enough to make things highly entertaining.
All hands were pretty tired after supper, but Hal decided he must listen-in for a while before going to bed. So he donned a pair of phones and began to tune for an evening program, when a call, clear and distinct, addressed to him, suddenly held his attention.
The vivid imagination of Jules Verne never conceived anything so fascinating as the reception of messages without wires sent out by stations half way round the world; and in these days of high power cableless stations on the five continents you can listen-in to the messages and hear what is being sent out by the Lyons, Paris and other French stations, by Great Britain, Italy, Germany and even far off Russia and Japan.
That boy is the anonymous amateur who pretended to have a radio wager with Hal's cousin and tried to make us think his SOS was a joke." The End of the "Mystery" Hal almost held his breath in his eagerness to maintain perfect silence in order that he might "listen-in" to this radio transmission until the sender had telegraphed all that he had in mind to send.
The vivid imagination of Jules Verne never conceived anything so fascinating as the reception of messages without wires sent out by stations half way round the world; and in these days of high power cableless stations on the five continents you can listen-in to the messages and hear what is being sent out by the Lyons, Paris and other French stations, by Great Britain, Italy, Germany and even far off Russia and Japan.
Best we can do is to rattle along up there, then sit it out for another listen-in." Disappointed but not disheartened, Curlie adjusted his instruments, then sat in breathless expectation. He did not have long to wait, for again the voice in the loud speaker boomed out into the night. "Huh," he grumbled a few seconds later, "he's got three miles lead on us. To the right. Quick, give her the gas."
In the better makes of microphone transformer, there is a third winding, called a side tone coil, to which a headphone can be connected so that the operator who is speaking into the microphone can listen-in and so learn if his transmitter is working up to standard. The Magnetic Modulator.
Since no license is needed for a receiving set the easiest way to break into the wireless game is to put up an aerial and hook up a receiving set to it; you can then listen-in and hear what is going on in the all-pervading ether around you, and you will soon find enough to make things highly entertaining.
They did not wish to ruin the whole enterprise by too great haste especially as they were receiving eight dollars a day and liberal expenses per man. At last, however, Hodshon sent word to Mrs. Cheever that the dictagraph was installed and working to a T, and she could listen-in whenever she was ready. Charity was terrified utterly now.
These he laid on the table in fan-like arrangement, so that they threw a flood of light in all directions. "I don't feel like going to bed yet," said Cub. "Let's stay up a while and " " listen-in," finished Hal. "Yes, let's do," exclaimed Bud eagerly. "I wasn't thinking of that," Cub admitted; "but it's better than what I had in mind. All right, Hal, tune 'er up.
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