For example, if Ohio did not consider the transmission satisfactory,  Ohio might  reply: “Alabama,   THIS   IS   Ohio,   WEAK   And DISTORTED,  OVER.” A station that wishes to inform another station of signal strength and readability does so by means of a short report of actual reception. A short report maybe “Weak but readable” or “Weak with interference.” Such reports as “Five by” or “Four by four” are not authorized and are not indicative of signal strength and quality of reception. COMMUNICATIONS   CONDITIONS Situations exist where atmospheric conditions and interference   do   not   present   problems   to   successful communications.   During   good   conditions,   message parts  need  only  be  transmitted  once,  and,  depending upon  the  operational  situation,  preliminary  calls  are sometimes   optional. At  other  times,  conditions  are  anything  but  ideal and   can   present   problems   to   even   an   experienced operator.   Normal   operating   procedure   requires   an operator   to   transmit   all   call   signs   twice   when communications   conditions   are   bad.   During   bad conditions, phrases, words, or groups to be transmitted twice are indicated by the use of the proword WORDS TWICE.  Reception  may  be  verified  by  use  of  the proword   READ   BACK.   For   example,   if   bad communications conditions exist and  Tecumseh  has a message for Kamehameha that reads “Moor Starboard Side Tender,” the transmission would be: “Kamehameha,   Kamehameha,   THIS   IS, Tecumseh, Tecumseh, WORDS TWICE, WORDS TWICE,  Moor  Starboard  Side  Tender  Moor Starboard Side Tender, OVER.” Upon receipt of the message, Kamehameha would communications   conditions,    Tecumseh   could   have ended the above transmission with the proword READ BACK, sent twice. This would require  Kamehameha  to read  back  the  message  verbatim  in  WORDS  TWICE form,  thus  ensuring  that  the  message  was  properly received. Another   method   of   using   the   READ   BACK procedure is to do so without using WORDS TWICE. If Tecumseh   wanted  Kamehameha  to  read  back  the message to ensure reception but did not want to use the WORDS TWICE procedure,  Tecumseh’s transmission would  be: 2-18 “Kamehameha, THIS IS Tecumseh, READ BACK Text,   BREAK,   Moor   Starboard   Side   Tender, OVER.” Kamehameha would then answer: “Tecumseh,   THIS   IS   Kamehameha,   I   READ BACK Text, Moor Starboard Side Tender, OVER.” Satisfied that  Kamehameha  has properly received the message, Tecumseh would then send: “Kamehameha,   THIS   IS   Tecumseh,   That   Is Correct, OUT.” If Kamehameha  repeated  back  the  message  incorrectly, Tecumseh   would  have  used  the  proword  WRONG, followed by the correct version.  Kamehameha  would then repeat back the necessary portions until the entire message was correctly received. When using the WORDS TWICE or READ BACK procedure,  you  should  remember  several  rules.  First, the prowords THIS IS and OVER are not repeated twice when  using  the  WORDS  TWICE  procedure.  These prowords  are  not  spoken  twice  in  the  original transmission nor in the repeat back version. Second, the proword ROGER is not necessary to indicate receipt of the  message  in  the  READ  BACK  procedure.  If  the message  is  correct  in  its  repeated  back  version,  you would use the phrase “THAT IS CORRECT, OUT.” In a collective call where only some of the stations represented are to read back, those stations should be specified  by  transmitting  their  appropriate  call  signs preceding the proword READ BACK. When the order to read back is given, only those stations directed to do so  will  read  back.  The  remaining  stations  called  will keep  silent  unless  directed  by  the  calling  station  to receipt. When not preceded by identifying call signs, the proword READ BACK means that all stations are to read back if the call is a collective one. CORRECTIONS When a transmitting operator makes an error, the operator  uses  the  proword  CORRECTION  to  correct  it. The operator then repeats the last word, group, proword, or phrase correctly sent, corrects the error, and proceeds Tecumseh   made   a   mistake   in   the   message   to Kamehameha.  The  method  Tecumseh  uses  to  correct that  mistake  is: “Kamehameha,   THIS   IS   Tecumseh,   Moor Outboard  Side,  CORRECTION,  Moor  Starboard Side Tender, OVER.” ROGER   for   it.   To   ensure   reception   during   bad with   the   message.   For   example,   let's   assume   that