Jones Frank C. (ed.) 5 Meter Radiotelephony

Second Edition Second Printing. — San Francisco: Pacific Radio Publishing Co, 1934. — 123 p. Design, construction and operation.5 meter-60 megacycle-radio communicotion is groy-headed:
Between 1887 ond 1891 Heinrich Hertz did his very first radio work on such wovelengths.
Every existing 5 meter distance record, tronscontinentol ond tronsoceonic, wes mode between 1925 ond 1929 by ltalien ond Americen experimenters.
No new effects seem to hove been found in late years.
The current monthly lit ··a tu re on 5 mefers hes shown o tendency toward retreot, in stronge controst to the progress mode ot other wavelengths. The receivers described this last year or more hove rather uniformly been in (in essentials) the 1925 Fronk Jones super-regenerotor. The yeor 1935 w I bring with it the f rst proctic al 5-meter superheterodyne by Fronk C. Jones.
Similarly tronsmitter descriptions hove drifted back to the half-forgotten device coiled "modulated oscillator." Such equipment is simple-but belongs to 1925.
The parade moved on 1926. Let us follow it.