. QST . COLLINEAR ANTENNAS for the TWO METER band 8 element beam $* 1 6 element beam $ 32 element beam $ COLLINEAR antennas for the two-meter CD and CAPfrequencies are also available. If your local Distributor does not have our literature,write direct to the factory. All inquiries answered promptly. U. H. F. RESONATOR CO. 224 7th Street Racine, Wisconsin *AII prices Racine, Wise. LEARN CODE! SPEED UP YourRECEIVING wifh G-C Automatic Sender Type S $ Postpaid in U. S. A. Housed in Aluminum Case Black Instrument Finished. Small—Compact—Quiet induction type motor. 1 1 0
. QST . COLLINEAR ANTENNAS for the TWO METER band 8 element beam $* 1 6 element beam $ 32 element beam $ COLLINEAR antennas for the two-meter CD and CAPfrequencies are also available. If your local Distributor does not have our literature,write direct to the factory. All inquiries answered promptly. U. H. F. RESONATOR CO. 224 7th Street Racine, Wisconsin *AII prices Racine, Wise. LEARN CODE! SPEED UP YourRECEIVING wifh G-C Automatic Sender Type S $ Postpaid in U. S. A. Housed in Aluminum Case Black Instrument Finished. Small—Compact—Quiet induction type motor. 1 1 0 Volts—60 Cycle Adjustable speed control, maintains constant speed at any Set-ting. Complete with ten rolls of double perforated tape. A widevariety of other practice tapes available at 50c per roll. GARDINER & COMPANY STRATFORD • NEW JERSEY. Using the Indicator Once your field-strength indicator is installed,it may reveal some surprising facts about yourtransmitting system. For instance, you may findthat maximum output does not occur at theplate-current dip but somewhere off to one may find that output does not continue toincrease with increased coupling, even if theplate current does go up and you still are ableto get a plate dip. A point is sometimes reachedwhere increased coupling merely heats your finalamplifier and the transmission line, and actuallydecreases power output. If your grid drive isadjustable, you may find that there is an opti-mum setting for it, too. Too much drive maydrop the output just as too little will. You willbe able to find the exact frequency at whichyour antenna sj^stem radiates best and you willbe able to prune your antenna to any desiredfrequency. The system followed here to QSY theantenna on 75 meters is to use capacity sprigsclipped on the antenna above the loading s
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectradio, bookyear1915
