I K.iXS.tTl..l\TlC K.tniO TEI.EPIIOSE TKASSMISSION Abl 



cati'il in the fmirth iiositioii. As ilic |),ilh t-iitiTs into stinli^lii, ilic 

 sign.il sfrciiKlh drops with a small dip orciirriti^j whon sunrisr iiiur- 

 \fiK"s iR-twi-fii tin- twi) ttTininals. 



Seasonal Vuriation. By assfnil)liiij; the ino[itlil>' a\fra^c- iiir\i's 

 for all months of ilu- Nrar, thr i-lTi-cl of the seasonal variation on .he- 



Fig- " — Signal Field January — Variation with exposure of transmis^sion path to 

 sunlight 



