PHASE DISTORTION AND PHASE DISTORTION CORRECTION 223 



correctors. Fig. 24c is the same print sent over the same circuit 

 after the circuit had been equipped with phase correctors. Fig. 24a, 

 which was sent locally, is shown for comparison. Fig. 24c is seen to 

 be practically as clear as Fig. 24a and both are substantially better 

 than Fig. 24b. 



th* .\tlantir ii\fr .< |>fri<>«1 ol about two ] 

 i< h th< it.ita -<cm to ju«tif\ are .\» folk 

 Miion Is ?.hi>wn to }k' ihf <'ontrollin^ f 

 3fl sc.iMiii.i! \ .iri.itiDDr; in signal fifld 

 iii west to <M--t cxhiliii sHuilai charactn 

 BJon in (fi»« n-iiion l>iir<l»iingon thf <fivifit 

 ii<irkene<l hcmisphcrr* is ihar.it terized 

 laniftvts ifM-II in the sunset an<l sunri: 

 nee of high night-time values in sumn 

 uf!* during the winter. 

 Sirrebtioci has been found between al 

 i»t urbatues in t he eart h 's tna ttnetic ftc 



Fig. 24a — Print transmitted locally 



I t TtK :u*t m*m ic luicift nrr »* J«fllk 



i:ir - -•■ 'V- • ^ ^« i'iH ptmvrnUmg i 

 *.-.•-'.. ^/".uli;rm It! tii^-uu". &lM 



>.i 1^ 11 "!(! -'.'4 1 IT ■•;trU<*rmf <« "in 6:>.iMi 



l-r.t.' tM>fr t»*-T>;»^;(ti«r«-t. t* liusxhriv^m^i ■ 



irt rr ' li ! t.ii-ir. i.imt »'fa1uri- n nuun^ 



'uiT 3u""-ii( lilt wm'+rr i 



Fig. 24& — Print transmitted over 352 mile H-174 loaded cable without corrector 



This pajKT kKi* .in.iKsesi of observation 

 ^hf AtlaiiiH <i\f r .1 |>eriod of alH)Ut two ; 

 ill h the >i.ti.i -^-f-iM ii. justify are as folU 

 jiation i*; shown to U the controlling f 

 tid st.ix'ii.il variaiiiHi* in iuj;na1 field 

 lid wt-i to v.i^x « vhihit similar < harar tci 

 Hon III thi MK'''" lx'r<liTin|{on thcdivisk 

 Id.iikfnc.l hiiniviih. tt> is chararteriM«1 1 

 i.niiitM> umIi in thf »u«s»'t and sunriij 

 itn ( ol hi^h iiiKht time value* in »umn| 

 jut ^ during tin- wiiuet. 

 lorrelatiofi lla^ lieen found between al 

 itsturlia nces in < he earth s maKneli<.- fie 



Fig. 24c — Print transmitted over 352 mile H-174 loaded cable with terminal phase 



corrector 



