K6620581X50HF/50 MHz Transceiver

HF/50 MHZ TRANSCEIVER FT DX 1200 OPERATING MANUAL YAESU MUSEN CO., LTD. Tennozu Parkside Building 2-5-8 Higashi-Shinagawa, Shinagawa-ku, Tokyo 140-0002 Japan YAESU USA 6125 Phyllis Drive, Cypress, CA 90630, U.S.A. YAESU UK Unit 12, Sun Valley Business Park, Winnall Close Winchester, Hampshire, SO23 0LB, U.K. YAESU HK Unit 2002, 20/F, 9 Chong Yip Street, Kwun Tong, Kowloon, Hong Kong ON/OFF TUNE RX CLAR TX CLAR CLEAR 10 1.8 1 4 7 21 2 5 8 0 3.5 14 24.5 50 6 3 9 7.0 18 28/29 ENTGEN . STO RCL NAR SPLIT TXW MODE 99 ANT AT T IPO R.FLT NB AGC MENU WIDTH SHIFT AF RF/SQL CONT/APFNOTCH CONT/APFMOXNOTCHBK-INMONI FASTLOCK /CLAR VFO-B MHz /μTMCH/GRP ABOUT THIS MANUAL . . . The FT DX 1200 is a leading-edge transceiver with a number of new and exciting features, some of which may be unfa- PLOLDUWR\RX,QRUGHUWRJDLQWKHPRVWHQMR\PHQWDQGRSHUDWLQJHI¿FLHQF\IURP\RXU FT DX 1200 , we recommend that you read this manual in its entirety, and keep it handy for reference as you explore the many capabilities of your new transceiver. Before using your FT DX 1200 , be sure to read and follow the instructions in the “Before You Begin” section of this man- ual. Page 1FT DX 1200 OPERATING MANUAL GENERAL DESCRIPTION Congratulations on the purchase of your Yaesu amateur WUDQVFHLYHU,IWKLVLV\RXU¿UVWULJRULI<DHVXHTXLSPHQW LVDOUHDG\WKHEDFNERQHRI\RXUVWDWLRQUHVWDVVXUHG your transceiver will provide many hours of operating pleasure for years to come. The FT DX 1200 is an elite-class HF transceiver provid- ing exceptional performance both on transmit and re- ceive. The FT DX 1200 is designed for the most competi- WLYHRSHUDWLQJVLWXDWLRQVZKHWKHU\RXSULPDULO\RSHUDWH LQFRQWHVW';RUGLJLWDOPRGHHQYLURQPHQWV Built on the foundation of the popular FT DX 9000 trans- FHLYHUDQGFDUU\LQJRQWKHSURXGWUDGLWLRQRIWKH FT- 1000 VHULHVWKH FT DX 1200 provides up to 100 Watts RISRZHURXWSXWRQ66%&:DQG)0 :DWWV$0 FDUULHU 'LJLWDO6LJQDO3URFHVVLQJ '63 LVXWLOL]HG WKURXJKRXWWKHGHVLJQSURYLGLQJOHDGLQJHGJHWUDQVPLW- ter and receiver performance. For exceptional protection from strong signal interfer- HQFHWKHRSWLRQDO5)—7XQLQJ.LWVPD\EHFRQQHFWHG YLDWKHUHDUSDQHO7KH5)—7XQLQJ.LWVSURYLGHH[WUDRU- dinarily sharp selectivity and protect your receiver from close-in interference on a crowded band. ,QWKHIURQWHQG\RXPD\VHOHFWRQHRIWZR5)SUHDP- SOL¿HUVRU,32 ,QWHUFHSW3RLQW2SWLPL]DWLRQ SURYLGLQJ GLUHFWIHHGWRWKH¿UVWPL[HU7KUHHOHYHOVRI5)DWWHQXD- tion are available in 6-dB steps. The FT DX 1200 UHFHLYHUXWLOL]HV'63¿OWHULQJLQFRUSR- rating many of the features of the FT DX 9000 VXFKDV 9DULDEOH%DQGZLGWK,)6KLIWDQG3DVVEDQG&RQWRXU WXQLQJ$OVRSURYLGHGDUH'LJLWDO1RLVH5HGXFWLRQ'LJL- WDO$XWR1RWFK)LOWHULQJDQGDPDQXDOO\WXQHG,)1RWFK ¿OWHU 2QWKHWUDQVPLWVLGHWKH<DHVXH[FOXVLYH7KUHH%DQG 3DUDPHWULF0LFURSKRQH(TXDOL]HUDOORZVSUHFLVHDQG flexible adjustment of the waveform created by your YRLFHDQGPLFURSKRQH7KHDXGLR$PSOLWXGH&HQWHU )UHTXHQF\DQG%DQGZLGWKDUHDGMXVWHGVHSDUDWHO\IRU WKHORZPLGUDQJHDQGKLJKIUHTXHQF\DXGLRVSHFWUXP The transmitted bandwidth may also be adjusted. $GYDQFHGIHDWXUHVLQFOXGH'LUHFW.H\ERDUG)UHTXHQF\ (QWU\DQG%DQG&KDQJH6SHHFK3URFHVVRU,)0RQLWRU IRU9RLFHPRGHV&:3LWFKFRQWURO&:6SRWVZLWFK )XOO&:46.&:0HVVDJH0HPRU\DGMXVWDEOH,) 1RLVH%ODQNHUDQGDOOPRGH6TXHOFK7KUHH7;5; antenna ports are provided on the rear panel. Two key MDFNVDUHSURYLGHG RQHRQWKHIURQWDQGRQHRQWKHUHDU SDQHO 7KHNH\MDFNVPD\EHFRQ¿JXUHGLQGHSHQGHQWO\ IRUSDGGOHLQSXWFRQQHFWLRQWRDVWUDLJKWNH\RUFRP- puter-driven keying interface. )UHTXHQF\VHWXSLVVWUDLJKWIRUZDUGRQWKH FT DX 1200 . (QWHUIUHTXHQF\GLUHFWO\IRUERWK9)2$DQG9)2% 6HSDUDWHNH\VDUHDYDLODEOHIRUEDQGVHOHFWLRQ(DFK EDQGNH\SURYLGHVWKUHHVHSDUDWH9)2VHWWLQJVIRUWKUHH different parts of each band. You may create three inde- SHQGHQW9)2VHWWLQJVRIIUHTXHQF\PRGHDQG¿OWHUIRU each band. ,QDGGLWLRQPHPRULHVDUHSURYLGHGWRVWRUH)UHTXHQ- F\0RGH,)¿OWHUVHOHFWLRQ&ODUL¿HURIIVHWDQG6FDQ VNLSVWDWXV:KDW¶VPRUHILYHTXLFNUHFDOO ³40% ́  memories can instantly store operational settings at the push of a button. The built-in antenna tuner includes 100 memories that DXWRPDWLFDOO\VWRUHDQWHQQDPDWFKLQJVHWWLQJVIRUUDSLG later automatic recall. Interfacing for digital modes is extremely simple with the FT DX 1200 WKDQNVWRWKHGHGLFDWHG577<36.FRQ- QHFWLRQMDFNRQWKHUHDUSDQHO2SWLPL]DWLRQRIWKH¿OWHU SDVVEDQG'63VHWWLQJVFDUULHULQVHUWLRQSRLQWDQGGLV- SOD\RIIVHWIRUGLJLWDOPRGHVLVSRVVLEOHYLDWKH0HQX programming system. $GYDQFHGWHFKQRORJ\LVRQO\SDUWRIWKH FT DX 1200 story. Yaesu stands behind our products with a world- wide network of dealers and service centers. We greatly appreciate your investment in the FT DX 1200 DQGZH look forward to helping you get the most enjoyment IURP\RXUQHZWUDQVFHLYHU3OHDVHIHHOIUHHWRFRQWDFW \RXUQHDUHVWGHDOHURURQHRI<DHVX¶VQDWLRQDOKHDGTXDU- WHUVRI¿FHVIRUWHFKQLFDODGYLFHLQWHUIDFLQJDVVLVWDQFH RUDFFHVVRU\UHFRPPHQGDWLRQ:DWFK<DHVX86$¶V +RPH3DJHIRUODWHEUHDNLQJLQIRUPDWLRQDERXW6WDQ- GDUG+RUL]RQDQG<DHVXSURGXFWVKWWSZZZ\DHVX com. 3OHDVHUHDGWKLVPDQXDOWKRURXJKO\WRJDLQPD[LPXP understanding of the full capability of the FT DX 1200 . We thank you again for your purchase! Page 2FT DX 1200 OPERATING MANUAL TABLE OF CONTENTS General Description ..................................................... 1 Table of Contents ......................................................... 2 Accessories & Options ................................................. 4 6XSSOLHG$FFHVVRULHV ................................................ 4 $YDLODEOH2SWLRQV ..................................................... Before You Begin ...................................................…

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Page 14FT DX 1200 OPERATING MANUAL INSTALLATION AND INTERCONNECTIONS INTERFACING TO OTHER LINEAR AMPLIFIERS NOTE ˆ  7KH7;*1'287SLQ SLQ RIWKH LINEAR jack LVDWUDQVLVWRU³RSHQFROOHFWRU ́FLUFXLW,WLVFDSDEOHRI KDQGOLQJSRVLWLYHUHOD\FRLOYROWDJHVXSWR9'& DWP$RU9'&DW$,I\RXSODQWRXVH PXOWLSOHOLQHDUDPSOLILHUVIRUGLIIHUHQWEDQGV\RX PXVWSURYLGHH[WHUQDOEDQGVZLWFKLQJRIWKH³/LQHDU 7[ ́UHOD\FRQWUROOLQHIURPWKH³7;*1'287 ́OLQH at the LINEAR jack. ˆ  7KHVSHFL¿HGUDQJHIRU$/&YROWDJHWREHXVHGZLWK the FT DX 1200 LVWR9ROWV'& ˆ  $PSOL¿HUV\VWHPVXWLOL]LQJGLIIHUHQW$/&YROWDJHV will not work correctly with the FT DX 1200 DQG WKHLU$/&OLQHVPXVWQRWEHFRQQHFWHGLIWKLVLVWKH case. IMPORTANT NOTE! ˆ  'RQRWH[FHHGWKHPD[LPXPYROWDJHRUFXUUHQWUDW- LQJVIRUWKH³7;*1'287 ́SLQ SLQ RIWKH LIN- EAR jack. This line is not compatible with negative '&YROWDJHVRU$&YROWDJHVRIDQ\PDJQLWXGH ˆ  0RVWDPSOLILHUFRQWUROUHOD\V\VWHPVUHTXLUHRQO\ ORZ'&YROWDJHFXUUHQWVZLWFKLQJFDSDELOLW\ W\SL- FDOO\9'&DWaP$ DQGWKHVZLWFKLQJ transistor in the FT DX 1200 will easily accommodate VXFKDPSOL¿HUV Note When the FC-40 is connected to the FT DX 1200  7;*1' SLQ RIWKH TUNER jack and the LINEAR MDFN SLQ DUHFRPPRQFLUFXLWV 7KHUHIRUHWKHPD[LPXPYROWDJHDW7;*1' SLQ  RIWKH LINEAR MDFNPXVWQRWH[FHHG9 GND EXT ALC TX GND Page 15FT DX 1200 OPERATING MANUAL PLUG/CONNECTOR PINOUT DIAGRAMS Page 16FT DX 1200 OPERATING MANUAL [ POWER ] Switch  3UHVVDQGKROGLQWKLVVZLWFKIRURQHVHFRQGWRWXUQ WKHWUDQVFHLYHURQ6LPLODUO\SUHVVDQGKROGLQWKLV switch for one second to turn the transceiver off. [ TUNE ] Switch  7KLVLVWKHRQRIIVZLWFKIRUWKH FT DX 1200 ¶V$XWR- PDWLF$QWHQQD7XQHU  3UHVVLQJWKLVEXWWRQPRPHQWDULO\SODFHVWKHDQWHQQD WXQHULQOLQHEHWZHHQWKHWUDQVPLWWHU¿QDODPSOL¿HU DQGWKHDQWHQQDMDFN 7KH³ TUNER ́LFRQZLOODS- SHDULQWKHGLVSOD\ 5HFHSWLRQLVQRWDIIHFWHG  3UHVVLQJDQGKROGLQJLQWKLVEXWWRQIRUWZRVHFRQGV ZKLOHUHFHLYLQJLQDQDPDWHXUEDQGDFWLYDWHVWKH transmitter for a few seconds while the automatic antenna tuner rematches the antenna system imped- DQFHIRUPLQLPXP6:57KHUHVXOWLQJVHWWLQJLVDX- tomatically stored in one of the antenna tuner’s 100 memories for instant automatic recall later when the UHFHLYHULVWXQHGQHDUWKHVDPHIUHTXHQF\  3UHVVLQJWKLVEXWWRQPRPHQWDULO\ZKLOHWKH7XQHULV HQJDJHGZLOOWDNHWKH$XWRPDWLF$QWHQQDWXQHURXW of the transmit line. NOTE:  :KHQWKH$XWRPDWLF$QWHQQD7XQHULVWXQLQJLWVHOI DVLJQDOLVEHLQJWUDQVPLWWHG7KHUHIRUHEHFHUWDLQ that an antenna or dummy load is connected to the selected antenna jack before pressing and holding in the [ TUNE ] switch to start antenna tuning. KEY Jack  7KLVLQFKFRQWDFWMDFNDFFHSWVD&:NH\RU NH\HUSDGGOHV IRUWKHEXLOWLQHOHFWURQLFNH\HU  RURXWSXWIURPDQH[WHUQDOHOHFWURQLFNH\HU3LQRXW is shown RQSDJH.H\XSYROWDJHLV9 '&DQGNH\GRZQFXUUHQWLVP$7KLVMDFNPD\ EHFRQ¿JXUHGIRUNH\HU³%XJ ́³VWUDLJKWNH\ ́RU FRPSXWHUNH\LQJLQWHUIDFHRSHUDWLRQYLD0HQXLWHP ³ 018 F CW KEYER ́ VHHSDJH 7KHUHLVDQRWK- er jack with the same name on the reaUSDQHODQGLW PD\EHFRQ¿JXUHGLQGHSHQGHQWO\IRU,QWHUQDO.H\HU or pseudo-straight-key operation. N OTE:  <RXFDQQRWXVHDFRQWDFWSOXJLQWKLVMDFN WRGRVR SURGXFHVDFRQVWDQW³NH\GRZQ ́FRQGLWLRQ  FRONT PANEL CONTROLS & SWITCHES Page 17FT DX 1200 OPERATING MANUAL FRONT PANEL CONTROLS & SWITCHES PHONES Jack  $LQFKFRQWDFWMDFNDFFHSWVHLWKHUPRQDXUDORU VWHUHRKHDGSKRQHVZLWKRUFRQWDFWSOXJV:KHQ DSOXJLVLQVHUWHGWKHORXGVSHDNHULVGLVDEOHG N OTE:  :KHQZHDULQJKHDGSKRQHVZHUHFRPPHQGWKDW\RX WXUQWKH$)*DLQOHYHOVGRZQWRWKHLUORZHVWVHWWLQJV EHIRUHWXUQLQJSRZHURQWRPLQLPL]HWKHLPSDFWRQ \RXUKHDULQJFDXVHGE\DXGLR³SRSV ́GXULQJVZLWFK on. MIC Jack This 8-pin jack accepts input from a microphone uti- OL]LQJDWUDGLWLRQDO<$(68+)WUDQVFHLYHUSLQRXW [ ANT ] Switch  3UHVVLQJWKLVVZLWFKVHOHFWVWKH ANT 1 or the ANT 2 FRQQHFWRURQWKHUHDUSDQHODQGDOORZVFRQYH- nient antenna switching at the press of a button. The VHOHFWHGDQWHQQDMDFNLVLQGLFDWHGRQWKH%ORFN'LD- JUDP'LVSOD\VKRZQLQWKH7UDQVFHLYHU'LVSOD\ A DVICE: 7KH$17MDFNHQDEOHVWRXVHDVDQDQWHQQDIRU UHFHSWLRQRQO\XVLQJWKH0HQXLWHP³ 032 ANT2 SET- TING ́6HHSDJH [ IPO ] ( INTERCEPT POINT OPTIMIZATION ) Switch This button may be used to set the optimum front end characteristics of the receiver circuit for a very VWURQJVLJQDOHQYLURQPHQW$YDLODEOHVHOHFWLRQVDUH $03 ORZGLVWRUWLRQDPSOLILHU $03 VWDJH ORZGLVWRUWLRQ5)DPSOLILHU RU,32 E\SDVVHVWKH IURQWHQG5)DPSOLILHU 7KHVHOHFWHGUHFHLYHU5) DPSOLILHUDSSHDUVLQWKH,32FROXPQRIWKH%ORFN 'LDJUDP'LVSOD\RQWKHGLVSOD\ [ ATT ] Switch  7KLVEXWWRQVHOHFWVWKHGHJUHHRIDWWHQXDWLRQLIDQ\ to be applied to the receiver input.  $YDLODEOHVHOHFWLRQVDUH±G%±G%±G%RU 2))7KHDWWHQXDWLRQOHYHODSSHDUVLQWKH$77FRO- XPQRIWKH%ORFN'LDJUDP'LVSOD\RQWKHGLVSOD\ A DVICE:  7KH$WWHQXDWRUPD\EHXVHGLQFRQMXQFWLRQZLWKWKH [ IPO ] button to provide two stages of signal reduc- tion when an extremely strong signal is being re- ceived. [ R.FLT ] ( ROOFING FILTER ) Switch  7KLVEXWWRQVHOHFWVWKHEDQGZLGWKRIWKHUHFHLYHU¿UVW ,)5RR¿QJ)LOWHU$YDLODEOHVHOHFWLRQVDUHN+] N+]N+]RU$XWR  7KHVHOHFWHGEDQGZLGWKDSSHDUVLQWKH5)/7FROXPQ RIWKH%ORFN'LDJUDP'LVSOD\RQWKH7)7GLVSOD\ A DVICE: ˆ  7KH³$872 ́VHOHFWLRQPRGHVHOHFWVWKHRSWLPXP EDQGZLGWKRIWKH5RR¿QJ¿OWHUIRUWKHUHFHSWLRQ PRGH,QWKLVFDVHWKHVHOHFWHGEDQGZLGWKLQ WKH5)/7FROXPQRIWKH%ORFN'LDJUDP'LV- SOD\JORZV\HOORZ 7KHXQVHOHFWHGFKRLFHVJORZ Blue). ˆ  %HFDXVHWKHURRILQJILOWHULVLQWKHILUVW,)WKH SURWHFWLRQLWSURYLGHVDJDL…

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Page 34FT DX 1200 OPERATING MANUAL though the actual tone that you hear is not chang- ing. ˆ  :KHQRSHUDWLQJRQWKH)0PRGHURWDWHWKH [ RF/ SQL ]  6TXHOFK NQREFORFNZLVHWRWKHSRLQW where the background noise is just silenced. This is the point of maximum sensitivity to weak sig- QDOV([FHVVLYHDGYDQFHPHQWRIWKH [ RF/SQL ] knob will decrease the ability of the receiver to detect weak signals. You may switch the [ RF/SQL ] NQREIURPWKH5) *DLQ)XQFWLRQWRWKH6TXHOFK)XQFWLRQYLD0HQX item ³ 037 RF  SQL VR ́.  5RWDWHWKH0DLQ7XQLQJ'LDONQREWRWXQHDURXQGWKH EDQGDQGEHJLQQRUPDORSHUDWLRQ ADVICE: ˆ  &ORFNZLVHURWDWLRQRIWKH0DLQ7XQLQJ'LDONQRE LQFUHDVHVWKHRSHUDWLQJIUHTXHQF\RQH³VWHS ́ RIWKHV\QWKHVL]HUDWDWLPHVLPLODUO\FRXQWHU FORFNZLVHURWDWLRQRIWKH0DLQ7XQLQJ'LDONQRE ZLOOGHFUHDVHWKHIUHTXHQF\7ZRVHWWLQJVRQH ³QRUPDO ́DQGRQH³IDVW ́DUHDYDLODEOHIRUHDFK RSHUDWLQJPRGH3UHVVLQJWKH [ FAST ] button HQJDJHVWKH³)DVW ́WXQLQJVHOHFWLRQ VHHFKDUWEH- low). BASIC OPERATION: RECEIVING ON AMATEUR BANDS ˆ  7KHWXQLQJVWHSVIRUWKH0DLQ7XQLQJ'LDONQRE DUHVHWDWWKHIDFWRU\WR+] 66%&:577< '$7$ DQG+] $0)0 SHUVWHS9LD 0HQXLWHPV³ 150 CW DIAL STEP ́WR³ 154 SSB DIAL STEP ́KRZHYHU\RXPD\FKDQJHWKHVHVHW- WLQJVIURP+]WRRU+] 66%&:577< '$7$ DQG+]WR+] $0)0 LQVWHDG MAIN TUNING DIAL KNOB TUNING RATE OPERATING MODE 1 STEP1 DIAL ROTATION LSB/USB/CW/ RTTY/DATA 1 / 5 / 10 Hz ( 100 Hz ) 1 / 5 / 10 kHz ( 100 kHz ) AM/FM 100 Hz ( 1 kHz ) 100 kHz ( 1 MHz ) Numbers in parentheses indicate steps when the [ FAST ] button is On. ˆ  ,I\RXZDQWWRHIIHFWUDSLGIUHTXHQF\FKDQJH WKHUHDUHVHYHUDOWHFKQLTXHVDYDLODEOH y  'LUHFWNH\ERDUGHQWU\RIWKHIUHTXHQF\ y Use the [ CLAR/VFO-B ] knob to tune in 1 0+]VWHSV y Use the microphone’s [ UP ]  [ DWN ] scanning NH\VLI\RXUPLFURSKRQHLVVRHTXLSSHG Page 35FT DX 1200 OPERATING MANUAL OPERATION ON 60-METER ( 5 MHZ ) B AND ( U.S. AND U.K. VERSION ONLY ) 7KHUHFHQWO\UHOHDVHGPHWHUEDQGLVFRYHUHGLQWKH FT DX 1200 E\¿[HGPHPRU\FKDQQHOV7KHVHFKDQQHOVDUHVHWWR 86%RU&:DQGWKH\DSSHDUEHWZHHQWKH³ODVW ́306FKDQQHO ³ P9U ́ DQGWKH¿UVW³UHJXODU ́PHPRU\FKDQQHO &KDQQHO    3UHVVWKH [ V/M ] EXWWRQRQFHWRHQWHUWKH³0HPRU\ ́ PRGHWKH³ MCH ́LFRQZLOODSSHDULQWKHGLVSOD\ and a memory channel number will appear on the display. A DVICE:  ,I\RXFDQQRWHQWHUWKH³0HPRU\ ́PRGHWKHWUDQV- ceiver may be in > VFO-B ) RX ] VRFKHFNWRVHHLI the green indicator is illuminated in the display. If VRSUHVVWKH [ A X W B ] Switch to return operation to 9)2$1RZSUHVVWKH [ V/M ] button to enter the ³0HPRU\ ́PRGH  3UHVVWKH [ MCH ] button located on the bottom right of the [ VFO-B/CLAR ] NQRE7KH/('LPEHGGHGLQ the button will glow orange to signify that rotation of the [ VFO-B/CLAR ] knob will allow selection of the memory channel.  0HPRU\FKDQQHOV ³ 5M-01 ́WKURXJK³ 5M-10 ́ DUH SUHSURJUDPPHGDWWKHIDFWRU\ZLWKWKHSHUPLWWHG IUHTXHQFLHVLQWKH0+]EDQGDQGWKH86%RU&: mode is automatically selected on these channels. 4. To exit from 60-meter operation and return to the 9)2PRGHMXVWSUHVVWKH [ V/M ] button. N OTE: 7KHIUHTXHQFLHVDQGRSHUDWLQJPRGHIRU0+]EDQG RSHUDWLRQDUH¿[HGDQGPD\QRWEHFKDQJHG BASIC OPERATION: RECEIVING ON AMATEUR BANDS [ VFO-B/CLAR ] Knob [ MCH ] Button [ V/M ] Button Main Tuning Dial Knob CHANNEL NUMBER 5M-01 5M-02 5M-03 5M-04 5M-05 5M-06 5M-07 5M-08 5M-09 5M-10 U.S. VERSION 5.332000 MHz 5.348000 MHz 5.358500 MHz 5.373000 MHz 5.405000 MHz 5.332000 MHz 5.348000 MHz 5.358500 MHz 5.373000 MHz 5.405000 MHz U.K. VERSION 5.260000 MHz 5.280000 MHz 5.290000 MHz 5.368000 MHz 5.373000 MHz 5.400000 MHz 5.405000 MHz - - - FREQUENCY Page 36FT DX 1200 OPERATING MANUAL BASIC OPERATION: RECEIVING ON AMATEUR BANDS CLAR ( CLARIFIER ) O PERATION The [ RX CLAR ]  [ TX CLAR ]  [ CLEAR ] buttons and [ VFO-B/CLAR ] NQREDUHXVHGWRRIIVHWWKHUHFHLYHIUHTXHQF\ WKHWUDQVPLWIUHTXHQF\RUERWKIURPWKHLUVHWWLQJVRQWKH9)2$IUHTXHQF\)RXUVPDOOQXPEHUVRQWKH0XOWL'LVSOD\ :LQGRZVKRZWKHFXUUHQW&ODUL¿HURIIVHW7KH&ODUL¿HUFRQWUROVRQWKH FT DX 1200 are designed to allow you to preset DQRIIVHW XSWR“N+] ZLWKRXWDFWXDOO\UHWXQLQJDQGWKHQWRDFWLYDWHLWYLDWKH&ODUL¿HU [ RX CLAR ] and [ TX CLAR ] EXWWRQV7KLVIHDWXUHLVLGHDOIRUIROORZLQJDGULIWLQJVWDWLRQRUIRUVHWWLQJWKHVPDOOIUHTXHQF\RIIVHWVVRPH- WLPHVXWLOL]HGLQ';³6SOLW ́ZRUN +HUHLVWKHWHFKQLTXHIRUXWLOL]LQJWKH&ODUL¿HU  3UHVVWKH [ RX CLAR ] EXWWRQ7KH³ RX ́QRWDWLRQ ZLOODSSHDULQWKH0XOWL'LVSOD\:LQGRZDQGWKH programmed offset will be applied to the receive fre- TXHQF\  5RWDWLRQRIWKH [ VFO-B/CLAR ] knob will allow \RXWRPRGLI\\RXULQLWLDORIIVHWRQWKHÀ\2IIVHWVRI XSWR“N+]PD\EHVHWXVLQJWKH&ODUL¿HU 7RFDQFHO&ODUL¿HURSHUDWLRQSUHVVWKH [ RX CLAR ] but- WRQ7KH³ RX ́QRWDWLRQZLOOGLVDSSHDUIURPWKHGLVSOD\ A DVICE: ˆ  7XUQLQJWKH&ODUL¿HURIIPHUHO\FDQFHOVWKHDSSOLFD- WLRQRIWKHSURJUDPPHGRIIVHWIURPWKHUHFHLYHDQG RUWKHWUDQVPLWIUHTXHQFLHV7RFOHDUWKH&ODULILHU RIIVHWDQGUHVHWLWWR³]HUR ́SUHVVWKH [ CLEAR ] but- ton. The programmed offset is displayed in the small PXOWLFKDQQHOZLQGRZRIWKHIUHTXHQF\GLVSOD\ ˆ  <RXPD\DOVRDFWLYDWHWKHFODUL¿HURQWKH9)2%IUH- TXHQF\,QWKLVFDVHWKHRIIVHWIUHTXHQF\LVVHWXVLQJ WKH0DLQ7XQLQJ'LDONQRELQVWHDGRIWKH [ VFO-B/ CLAR ] knob. ˆ  7KH&ODUL¿HURSHUDWLRQ LQFOXGLQJWKHRIIVHWIUHTXHQ- F\ ZLOOEHPHPRUL]HGLQGHSHQGHQWO\RQHDFK9)2 VWDFNRI9)2$DQG9)2% [ VFO-B/CLAR ] Knob [ RX CLAR ] Button [ TX CLAR ] Button [ CLEAR ] Button TXCLAR $OWHUQDWHO\\RXPD\DSSO\WKH&ODULILHURIIVHW WRWKHWUDQVPLWIUHTXHQF\ZLWKRXWFKDQJLQJWKH UHFHLYHIUHTXHQF\ W\SLFDOO\IRU³VSOLW ́';SLOH ups). [ VFO-B/CLAR ] Knob [ S / T ] Button 7KH7XQLQJ2…

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Page 44FT DX 1200 OPERATING MANUAL CONVENIENCE FEATURES RECEIVER OPERATION ( FRONT END BLOCK DIAGRAM ) The FT DX 1200 includes a wide range of special features to suppress the many types of interference that may be encoun- WHUHGRQWKH+)EDQGV+RZHYHUUHDOZRUOGLQWHUIHUHQFHFRQGLWLRQVDUHFRQVWDQWO\FKDQJLQJVRRSWLPXPVHWWLQJRIWKH FRQWUROVLVVRPHZKDWRIDQDUWUHTXLULQJIDPLOLDULW\ZLWKWKHW\SHVRILQWHUIHUHQFHDQGWKHVXEWOHHIIHFWVRIVRPHRIWKH FRQWUROV7KHUHIRUHWKHIROORZLQJLQIRUPDWLRQLVSURYLGHGDVDJHQHUDOJXLGHOLQHIRUW\SLFDOVLWXDWLRQVDQGDVWDUWLQJ point for your own experimentation. The FT DX 1200 LQWHUIHUHQFH¿JKWLQJFLUFXLWU\EHJLQVLQLWV³5) ́VWDJHVDQGFRQWLQXHVWKURXJKRXWWKHHQWLUHUHFHLYHU section. FT DX 1200 DOORZVFRQ¿JXUDWLRQRIWKHIHDWXUHVGHVFULEHGEHORZ R. FLT ( ,)5RR¿QJ)LOWHUV ) 7KUHH5RRILQJILOWHUVRIN+]N+]DQGN+] EDQGZLGWKVDUHSURYLGHGLQWKH)LUVW,)ULJKWDIWHUWKH first mixer. These filters are automatically selected to provide narrow-band selectivity to protect the following ,)DQG'63VWDJHV7KHDXWRPDWLFDOO\VHOHFWHG¿OWHUPD\ EHPDQXDOO\FKDQJHGE\WKHRSHUDWRULIGHVLUHGIRUVSH- cial operating circumstances. CONTOUR Filter 7KH'63&RQWRXUILOWHUKDVWKHXQLTXHDELOLW\WRSUR- vide either a null or a peak in tunable segments of the receiver passband. You may suppress interference and H[FHVVLYHIUHTXHQF\FRPSRQHQWVRQDQLQFRPLQJVLJQDO RU\RXPD\SHDNWKRVHWXQDEOHIUHTXHQF\VHJPHQWV7KH OHYHORIWKHQXOORUSHDNDQGWKHEDQGZLGWKRYHUZKLFK LWLVDSSOLHGDUHDGMXVWDEOHYLDWKH0HQX IF SHIFT 7KHSDVVEDQGFHQWHUIUHTXHQF\RIWKH,)'63¿OWHUPD\ be moved up or down by adjusting this control. IF WIDTH 7KHZLGWKRIWKH,)'63¿OWHULQJPD\EHDGMXVWHGXVLQJ this control. IF NOTCH 7KH,)1RWFK¿OWHULVDKLJK4QRWFK¿OWHUWKDWFDQHOLP- LQDWHRUVLJQL¿FDQWO\UHGXFHDQLQWHUIHULQJFDUULHU DNF ( 'LJLWDO1RWFK¿OWHU ) When multiple interfering carriers are encountered dur- LQJUHFHSWLRQWKH'LJLWDO1RWFK)LOWHUFDQVLJQL¿FDQWO\ reduce the level of these signals. DNR ( Digital Noise Reduction ) 7KH'63¶V'LJLWDO1RLVH5HGXFWLRQ '15 IHDWXUHXWL- OL]HVGLIIHUHQWPDWKHPDWLFDODOJRULWKPVWRDQDO\]H DQGVXSSUHVVGLIIHUHQWQRLVHSUR¿OHVHQFRXQWHUHGRQWKH +)0+]EDQGV&KRRVHWKHVHOHFWLRQWKDWSURYLGHV WKHEHVWQRLVHVXSSUHVVLRQDQGDOORZVWKHVLJQDOWRULVH up out of the noise. AGC 7KH$*&V\VWHPLVKLJKO\DGDSWDEOHWRFKDQJLQJVLJQDO DQGIDGLQJFKDUDFWHULVWLFVPDNLQJUHFHSWLRQSRVVLEOH XQGHUWKHPRVWGLI¿FXOWFRQGLWLRQV 40.455455 3rd IF 3rd FRONT END BLOCK DIAGRAM Page 45FT DX 1200 OPERATING MANUAL INTERFERENCE REJECTION ATT :KHQH[WUHPHO\VWURQJORFDOVLJQDOVRUKLJKQRLVHGHJUDGHVUHFHSWLRQ\RXFDQXVHWKH [ ATT ] EXWWRQWRLQVHUWRU G%RI5)DWWHQXDWLRQLQIURQWRIWKH5)DPSOL¿HU  3UHVVWKH [ ATT ] button several times to set the de- VLUHGDWWHQXDWLRQOHYHOSHUWKHFKDUWEHORZ OFF  $WWHQXDWRULV2II -6dB  7KHLQFRPLQJVLJQDOSRZHULVUHGXFHGE\ G% 6LJQDOYROWDJHUHGXFHGE\ -12dB 7KHLQFRPLQJVLJQDOSRZHULVUHGXFHGE\ G% 6LJQDOYROWDJHUHGXFHGWR  -18dB 7KHLQFRPLQJVLJQDOSRZHULVUHGXFHGE\ G% 6LJQDOYROWDJHUHGXFHGWR The selected attenuation level will be indicated in the $77FROXPQRIWKH%ORFN'LDJUDP'LVSOD\RQWKH TFT display.  7RUHVWRUHIXOOVLJQDOVWUHQJWKWKURXJKWKH$WWHQXD- WRUFLUFXLWDUHDSUHVVWKH [ ATT ] button to restore the $77GLVSOD\WRWKH³2)) ́SRVLWLRQ ADVICE: ˆ  ,IEDFNJURXQGQRLVHFDXVHVDKLJK6PHWHULQGLFDWLRQRQFOHDUIUHTXHQFLHVSUHVVWKH [ ATT ] button until the S-meter GURSVWRDERXW³6 ́7KLVVHWWLQJRSWLPL]HVWKHWUDGHRIIEHWZHHQVHQVLWLYLW\QRLVHDQGLQWHUIHUHQFHLPPXQLW\$OVR RQFH\RXKDYHWXQHGLQDVWDWLRQ\RXZDQWWRZRUN\RXPD\ZDQWWRUHGXFHVHQVLWLYLW\IXUWKHU DGGPRUHDWWHQXD- tion) by pressing the [ ATT ] EXWWRQWRDKLJKHUVHWWLQJ7KLVUHGXFHVWKHVWUHQJWKRIDOOVLJQDOV DQGQRLVH DQGFDQ PDNHUHFHSWLRQPRUHFRPIRUWDEOHLPSRUWDQWHVSHFLDOO\GXULQJORQJ462V:KHQORRNLQJIRUZHDNVLJQDOVRQDTXLHW EDQG\RXZLOOZDQWPD[LPXPVHQVLWLYLW\VRWKH,32VKRXOGEHGLVDEOHGDQGWKH [ ATT ] EXWWRQVKRXOGEHVHWWR³2)) ́ 7KLVVLWXDWLRQLVW\SLFDOGXULQJTXLHWWLPHVRQIUHTXHQFLHVDERYH0+]DQGZKHQXVLQJDVPDOORUQHJDWLYHJDLQ receiving antenna on other bands. [ ATT ] Button Page 46FT DX 1200 OPERATING MANUAL μ-TUNE FILTER ( REQUIRES THE OPTIONAL RF μ TUNING KIT ) 7KH5)—7XQLQJ.LWSURYLGHVXOWUDVKDUS5)VHOHFWLYLW\IRUWKHIURQWHQGRIWKHWUDQVFHLYHU9HU\KLJK4LVPDGHSRV- VLEOHE\WKHQDUURZEDQGGHVLJQ7KUHH5)—7XQLQJ.LWVDUHDYDLODEOH7KH MTU-160 FRYHUVWKH0+]EDQG7KH MTU-80/40 FRYHUVWKHDQG0+]EDQGV7KH MTU-30/20 FRYHUVDQG0+]EDQGV :KHQDQ\ RUDOO RIWKHWKUHHRSWLRQDOXQLWVDUHFRQQHFWHGWKH\ZLOOEHDXWRPDWLFDOO\DGMXVWHGWRFHQWHURQ\RXURSHUDW- LQJIUHTXHQF\ 7KHQDUURZEDQGZLGWKLVHVSHFLDOO\XVHIXORQWKHORZEDQGVZKHQPDQ\VWURQJVLJQDOVDUHEHLQJUHFHLYHGYLD19,6 SURSDJDWLRQ 1HDU9HUWLFDO,QFLGHQFH6LJQDOV ZLWKLQDQDUURZEDQGZLGWK7KHDGGHGSURWHFWLRQIRUWKH5)VWDJHLVHV- SHFLDOO\KHOSIXOLQSUHYHQWLQJ,0'DQGEORFNLQJ μ-Tune Operation  3UHVVDQGKROGLQWKH [ MHz/μT ] button for one sec- RQGWRDFWLYDWHWKH—7XQH¿OWHU7KH³ μ-Tune ́ZLOO appear on the TFT display. The [ VFO-B/CLAR ] NQREZRUNVDVWKH—781,1*NQRE A DVICE: ˆ  7KH—7XQHFLUFXLWZLOODXWRPDWLFDOO\DOLJQLWVHOI WRWKHRSHUDWLQJIUHTXHQF\ ˆ  5HPHPEHUWKDW—7XQHRQO\RSHUDWHVRQWKH 0+]DQGORZHUEDQGV  5RWDWHWKH [ VFO-B/CLAR ] knob to peak the re- VSRQVH EDFNJURXQGQRLVH RUUHGXFHLQWHUIHUHQFH A DVICE: ˆ You may observe the relative peak point of the —7XQHILOWHULQWKH7XQLQJ2IIVHW,QGLFDWRURQ WKH9)2%IUHTXHQF\GLVSOD\ZKLOHWXQLQJWKH [ VFO-B/CLAR ] knob. ˆ  7KHDPRXQWRIFKDQJHLQWKHFHQWHUIUHTXHQF\ RIWKH—7XQHILOWHUZKHQURWDWLQJWKH [ VFO- B/CLAR ] NQRE…

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Page 54FT DX 1200 OPERATING MANUAL OPERATING MODE SSB CW RTTY/DATA AM FM ( 28/50 MHz Bands ) INTERFERENCE REJECTION NARROW ( NAR ) ONE-TOUCH IF FILTER SELECTION 3UHVVLQJWKH [ NAR ] EXWWRQSURYLGHVRQHWRXFKPRGHVSHFL¿FVHOHFWLRQRIDQDUURZ,)'63¿OWHUVHWWLQJWKDWGRHVQRW UHTXLUHUHVHWWLQJWKH [ WIDTH ] knob. 3UHVVLQJWKH [ NAR ] button once more returns the band- ZLGWKFRQWUROWRWKH:,7'+6+,)7V\VWHP7KHIDFWRU\ GHIDXOWEDQGZLGWKVDUH Ú : Depends on the [ WIDTH ] knob ( ) : Default Bandwidth “ON” 200 Hz ~ 1.8 kHz Ú ( 1.8 kHz ) 50 ~ 500 Hz Ú ( 500 Hz ) 50 ~ 500 Hz Ú ( 500 Hz ) 6 kHz 9 kHz “OFF” 1.8 ~ 4.0 kHz Ú ( 2.4 kHz ) 500 Hz ~ 2.4 kHz Ú ( 2.4 kHz ) 500 Hz ~ 2.4 kHz Ú ( 2.4 kHz ) 6 kHz 9 kHz [ NAR ] SWITCH ADVICE: ˆ  :KHQWKHQDUURZEDQGZLGWKLVVHOHFWHGWKH³ NAR ́ icon will appear in the display. ˆ If the [ NAR ] button has been pressed to engage WKHQDUURZ¿OWHU\RXPD\VWLOODGMXVWWKHQDUURZ,) bandwidth by rotating the [ WIDTH ] knob. The IF 6+,)7LVDOVRRSHUDWLRQDO)RUPDQ\DSSOLFDWLRQV \RXPD\¿QGWKDWVLPSO\SUHVVLQJWKH [ NAR ] button instead of adjustment of the [ WIDTH ] NQREPD\EH satisfactory for interference reduction. ˆ When you press the [ NAR ] EXWWRQLQWKH)0PRGH both transmit and receive bandwidths are narrowed. [ NAR ] Button WIDTH INDICATOR Page 55FT DX 1200 OPERATING MANUAL INTERFERENCE REJECTION IF NOTCH FILTER OPERATION ( SSB/CW/RTTY/DATA/AM MODES ) 7KH,)127&+¿OWHULVDKLJKO\HIIHFWLYHV\VWHPWKDWDOORZV\RXWRVOLFHRXWDQLQWHUIHULQJEHDWQRWHRURWKHUFDUULHU signal from inside the receiver passband.  3UHVVWKH [ NOTCH ] EXWWRQWRDFWLYDWHWKH1RWFK ILOWHU7KH'63JUDSKLFGLVSOD\ZLOOLOOXPLQDWHDQG WKHFXUUHQW³QXOO ́SRVLWLRQRIWKH127&+¿OWHUZLOO DSSHDULQWKH127&+LQGLFDWRURQWKHGLVSOD\7KH [ NOTCH ] NQREIXQFWLRQVDVWKH1RWFKDGMXVWPHQW knob.  5RWDWHWKH [ NOTCH ] NQREWRDGMXVWWKH³QXOO ́SRVL WLRQRIWKH1RWFK¿OWHU A DVICE:  7KHIUHTXHQF\GLVSOD\ZLOOVKRZWKH1RWFKIUHTXHQ cy for 3 seconds whenever the [ NOTCH ] knob is turned.  7RFDQFHOWKH127&+ILOWHUSUHVVWKH [ NOTCH ] button momentarily. The graphic disappears from the 127&+LQGLFDWRURQWKHGLVSOD\FRQ¿UPLQJWKDWWKH 127&+¿OWHULVQRORQJHULQRSHUDWLRQ A DVICE:  $OWHUQDWHSUHVVHVRIWKH [ NOTCH ] EXWWRQZLOO VZLWFKWKH127&+¿OWHUEHWZHHQRQDQGRII [ NOTCH ] Button 7KHSHUIRUPDQFHRIWKH,)127&+¿OWHULVLOOXV WUDWHGLQ)LJXUH³ A ́ZKHUHWKHHIIHFWRIURWDWLRQ of the [ NOTCH ] NQRELVGHSLFWHG,Q)LJXUH³ B ́ \RXFDQVHHWKHQRWFKLQJHIIHFWRIWKH,)127&+ ¿OWHUDV\RXURWDWHWKH [ NOTCH ] knob to elimi- nate the interfering heterodyne. A B Desired SignalDesired Signal QRM (Heterodyne) QRM (Heterodyne) IF BANDWIDTHIF BANDWIDTH NOTCH WIDTH INDICATOR Page 56FT DX 1200 OPERATING MANUAL DIGITAL NOTCH FILTER ( DNF ) OPERATION 7KH'LJLWDO127&+)LOWHU '1) LVDQHIIHFWLYHEHDWFDQFHOLQJ¿OWHUWKDWFDQQXOORXWDQXPEHURILQWHUIHULQJEHDWQRWHV LQVLGHWKHUHFHLYHUSDVVEDQG%HFDXVHWKLVLVDQ$XWR1RWFKIHDWXUHWKHUHLVQRDGMXVWPHQWNQREDVVRFLDWHGZLWKWKLV¿O ter. A DVICE: ,IDYHU\VWURQJLQWHUIHULQJFDUULHULVHQFRXQWHUHGZHUHFRPPHQG\RX¿UVWXVHWKH,)127&+¿OWHUDVLWLVWKHPRVWHI fective notching tool in the receiver section.  3UHVVWKH [ S / T / W / X ] EXWWRQWRVHOHFWWKH³ DNF ́  3UHVVWKH [ SELECT ] EXWWRQWRFKRRVH³ ON ́7KH ³ DNF ́ZLOODSSHDULQWKHGLVSOD\ 7RGLVDEOHWKH'LJLWDO127&+)LOWHUMXVWUHSHDWWKH DERYHSURFHGXUHSUHVVLQJWKH [ SELECT ] button to FKRRVH³ OFF ́LQVWHSDERYH7KH³ DNF ́ZLOOWXUQRII FRQ¿UPLQJWKDWWKH'LJLWDO127&+)LOWHULVQRWDFWLYH DIGITAL NOISE REDUCTION ( DNR ) OPERATION 7KH'LJLWDO1RLVH5HGXFWLRQ '15 V\VWHPLVGHVLJQHGWRUHGXFHWKHOHYHORIUDQGRPQRLVHIRXQGRQWKH+)DQG 0+]EDQGVDQGLWLVHVSHFLDOO\HIIHFWLYHGXULQJ66%RSHUDWLRQ%\VHWWLQJWKH0HQXLWHP³ 109 DNR LEVEL ́DQ\RI GLIIHUHQWQRLVHUHGXFWLRQDOJRULWKPVFDQEHVHOHFWHGHDFKRIWKHVHDOJRULWKPVZDVFUHDWHGIRUGHDOLQJZLWKDGLIIHUHQW QRLVHSUR¿OH<RXZLOOZDQWWRH[SHULPHQWZLWKWKH'15V\VWHPWR¿QGWKHEHVWVHWWLQJFRUUHVSRQGLQJWRWKHQRLVHFXU rently being experienced.  3UHVVWKH [ S / T / W / X ] EXWWRQWRVHOHFWWKH³ DNR ́  3UHVVWKH [ SELECT ] EXWWRQWRFKRRVH³ ON ́7KH ³ DNR ́ZLOODSSHDULQWKHGLVSOD\ 7RGLVDEOHWKH'15V\VWHPMXVWUHSHDWWKHDERYHSURFH GXUHSUHVVLQJWKH [ SELECT ] EXWWRQWRFKRRVH³ OFF ́LQ VWHSDERYH7KH³ DNR ́ZLOOWXUQRIIFRQ¿UPLQJWKDW WKH'15V\VWHPLVQRWDFWLYH [ SELECT ] button [ SELECT ] button INTERFERENCE REJECTION DNF Indicator DNR Indicator [ S / T / W / X ] button [ S / T / W / X ] button Page 57FT DX 1200 OPERATING MANUAL RF GAIN 7KH5)*DLQFRQWUROSURYLGHVPDQXDODGMXVWPHQWRIWKHJDLQOHYHOVIRUWKHUHFHLYHU5)DQG,)VWDJHVWRDFFRXQWIRU noise and signal strength conditions at the moment. 1. The [ RF/SQL ] NQREVKRXOGLQLWLDOO\EHURWDWHG to the fully clockwise position. This is the point of maximum sensitivity.  &RXQWHUFORFNZLVHURWDWLRQRIWKH [ RF/SQL ] knob will gradually reduce the system gain. A DVICE: ˆ  $VWKH [ RF/SQL ] knob is rotated counterclockwise WRUHGXFHWKHJDLQWKH6PHWHUUHDGLQJZLOOULVH7KLV LQGLFDWHVWKDWWKH$*&YROWDJHEHLQJDSSOLHGWRWKH UHFHLYHULVLQFUHDVLQJ WKLVFDXVHVDreduction in re- ceiver gain). ˆ  5RWDWLQJWKH [ RF/SQL ] knob control to the fully counter-clockwise position will essentially disable WKHUHFHLYHUDVWKHJDLQZLOOEHJUHDWO\UHGXFHG,Q WKLVFDVHWKH6PHWHUZLOODSSHDUWREH³SHJJHG ́ against the right edge of the analog S-meter scale. Q UICK POINT: ˆ  5HFHSWLRQIUHTXHQWO\FDQEHRSWLPL]HGE\URWDWLQJ the [ RF/SQL ] knob slightly counter-clockwise to the SRLQWZKHUHWKH³VWDWLRQDU\ ́PHWHULQGLFDWLRQLVVHW just about the same as the incoming noise level. This ZLOOUHGXFHWKH5)JDLQWR¿QGDOHYHORILPSURYHG signal to noise ratio. ˆ  7KH5)*DLQFRQ…

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