User manual ICOM IC-730

[. . . ] This device emits Radio Frequency (RF) energy. Extreme caution should be observed when operating this device. If you have any questions regarding RF exposure and safety standards please refer to the Federal Communications Commission Office of Engineering and Technology's report on Evaluating Compliance with FCC Guidelines for Human Radio Frequency Electromagnetic Fields (OET Bulletin 65). NEVER attach an antenna or internal antenna connector during transmission. [. . . ] q Push [CW/RTTY] to select RTTY mode. · After RTTY mode is selected, push [CW/RTTY] for 1 sec. to select RTTY-R mode. w Push [MENU] several times to select M1. r Push [F4 FIL] to turn the RTTY filter ON. · The RTTY decoder does not function when the RTTY filter is turned OFF. AGC F1 DUP F2 1/4 F3 RTY F4 SCP F5 Push [F4] t Push [F2 DEC] to turn the RTTY decoder ON. · RTTY decoder screen appears. y Push [F2] to freeze the current screen. · "H" appears while the function is in use. RTTY-FIL ON DEC FIL F1 F2 F3 F4 SET F5 u Push [F3] for 1 sec. i Push [MENU] to exit the RTTY decoder screen. Push [F2] ADJ F1 F2 F3 F4 F5 Appears while the RTTY decoder screen is freezed with [F2] operation. Push [F3] to erase the displayed characters. · Setting the decoder threshold level Adjust the RTTY decoder threshold level if some characters are displayed when no signal is received. q Call up the RTTY decoder screen as described above. w Push [F1 ADJ] to select the threshold level setting condition. e Rotate the tuning dial to adjust the RTTY decoder threshold level. · Push [F3] for 1 sec. to select the default condition. ADJ F1 F2 F3 F4 F5 Push [F1] r Push [MENU] to exit the RTTY decoder screen. å The number of line of text can be selected from 2 or 3 in the display. The UnShift On Space (USOS) function and new line code can be set in the RTTY set mode. 39) F1 9 F2 F3 F4 F5 Threshold level indication 38 4 RECEIVE AND TRANSMIT D RTTY set mode This set mode is used to set the mark and shift frequencies, keying type, decode USOS function, etc. · Setting contents q Push [MENU] to select M1, then push [F4 RTY] to select the RTTY menu. 52) Rotate [TWIN PBT] controls (inner only). · Push [PBTC] to clear the settings. · Noise blanker (p. 51) Push [NB] to turn the noise blanker ON and OFF. · "NB" appears when the noise blanker is set to ON. to enter noise blanker set mode. · AGC (auto gain control) (p. 49) While M1 is selected with [MENU], push [F1 AGC] several times to select AGC F, AGC M, AGC S or AGC OFF. · VSC (voice squelch control) (p. 54) While M2 is selected with [MENU], push [F5 VSC] to turn the VSC function ON and OFF. · The VSC indicator appears when the voice squelch function is set to ON. · Noise reduction (p. 53) Push [NR] to turn the noise reduction ON and OFF. · Rotate [NR] control to adjust the noise reduction level. · "NR" appears when the noise reduction is set to ON. D Convenient functions for transmit · Speech compressor (p. 58) While M1 is selected with [MENU], push [F3 CMP] to turn the speech compressor ON and OFF. · "COMP" appears when the speech compressor is set to ON. · Transmit quality monitor (p. 57) Push [MONITOR] to turn the monitor function ON and OFF. · "MONI" appears when the monitor function is set to ON. · VOX (voice operated transmit) (p. 55) Push [VOX/BK-IN] to turn the VOX function ON and OFF. · "VOX" appears when the VOX function is set to ON. · Audio tone control (p. [. . . ] For example, when sending/reading the oldest contents in the 21 MHz band, the code "0703" is used. · Frequency band code Code 01 02 03 04 05 06 07 08 09 10 11 12 Frequency band Frequency range (unit: MHz) 1. 8 1. 800000­ 1. 999999 3. 5 3. 400000­ 4. 099999 7 6. 900000­ 7. 499999 10 9. 900000­10. 499999 14 13. 900000­14. 499999 18 17. 900000­18. 499999 21 20. 900000­21. 499999 24 24. 400000­25. 099999 28 28. 000000­29. 999999 50 50. 000000­54. 000000 144 144. 000000­148. 000000 GENE Other than above · Character's code-- Symbols Character !' + : = > ) ] } _ ASCII code 21 24 26 3F 27 2B 3A 3D 3E 29 5D 7D 5F Character # % ¥ " ` ­ ; < ( [ { | ­ ASCII code 23 25 5C 22 60 2D 3B 3C 28 5B 7B 7C 7E · Register code Code 01 02 03 Registered number 1 (latest) 2 3 (oldest) 98 14 CONTROL COMMAND D Split/Duplex frequency setting The following data sequence is used when sending/reading the split or duplex frequency setting. q X 0 X w X 0 e X r* XX 10 MHz digit: 0 (fixed) 100 Hz digit: 0 (fixed) 100 kHz digit: 0--9 10 kHz digit: 0--9 1 kHz digit: 0--9 1 MHz digit: 0--4 X 1 Hz digit: 0­9 e X 2nd digit: 0­7 *No need to enter for duplex frequency setting. D Repeater tone/tone squelch frequency setting The following data sequence is used when sending/reading the DTCS code and polarity setting. [. . . ]