T-2 month: August, 1957, Magazine "Radio" №8, USSR

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1 points | by Ontolorg 10 hours ago ago

1 comments

  • Ontolorg 10 hours ago ago

    Detailed instructions for radio amateurs on methods for observing artificial Earth satellites (antennas, preparation for observations, recording signals onto magnetic tape, determining the time of satellite passage, and ionospheric observations) and on using a direction-finding attachment.