S I M P L E M O D E M for BAUDAUT, AMTOR, PACTOR, SSTV, FAX, HF/VHF PACKET BY RT4UZ Computer RS-232 COM1 COM2 25-Pin 9-Pin 25-Pin 9-Pin 20 4 DTR 컴컴컴컴컴컴컴 DCD 8 1 5 8 CTS 커 � 8 1 DCD 컨컴컴컴커 � 4 7 RTS 컴컴컴컴컵컫컴 RI 22 9 � � � � Transceiver � � � � 100 nF �A741 (or similar) � � 旼컴컫컴컫컴�쳐쩝컵컴 DTR 20 4 납 3 �\ �7 � � � � 컴컴캑쳐컴쩡컴컴컴컴�+\� � 旼탠캑쳐� � 납 � � \ 6 � � � � AF IN � � >컴컵컵컵컴컴컴컴컵컴 DSR 6 6 � 2 � / � � � � 컴커 � 旼컴캑-/� � � 읕캑쳐커 � � � � �/ �4 � � � � � 憫� 憫� 읓컴컵컨컴컴�쳐쩝컵컴 RTS 4 7 � 100k� � � �100k 컨� 컨�+ � � � 읓� 읓� +컫� 컫� � � � � � 1�F � � 1�F 旼컵컴탠� GND 7 5 컨� 컨� 컨� 16V컨� 컨�16V 컨� � � PTT 컴컴컴컴컴커 넬켸 � 납 \� 旼컴커 SW1 납"HAMCOM" 쳐컴캑 쳐캑쳐� 粕� /� 읕컴켸 \ � � 3k 읕�"BAYCOM" 컨� 旼컴커 旼컴커 100nF 旼컴컴컫캑91 k쳐쩡�10 k쳐컴컴컴� TXD 2 3 납 10k憫� � 읕컴켸 � 읕컴켸 MIC 컴늘컴컴탠탠 � � 납 읓� 컴좔� 컴좔� � 컴쩡� 컴쩡� 컴컴� � 1쿻F 30쿻F 컨� 컨� 컨� 컨� SW1 used to switch between STANDARD HAMCOM mode for MIX v2.5, JVFAX v5.1, HAMCOM v2.1, TV2 v1.0 etc and EMULATE BAYCOM mode for BAYCOM v1.50, PCTOR v2.06. .......................................................... EMULATE BAYCOM mode requires additional small program EMBAYCOM.EXE and two COM-ports. www.qsl.net/eb7dtm