User manual ICOM IC-78

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ICOM IC-78 : Download the complete user guide (2849 Ko)

You may also download the following manuals related to this product:

   ICOM IC-78 BROCHURE (221 ko)
   ICOM IC-78 INSTRUCTION MANUAL (2704 ko)

Manual abstract: user guide ICOM IC-78

Detailed instructions for use are in the User's Guide.

[. . . ] INSTRUCTION MANUAL HF TRANSCEIVER i78 This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. IMPORTANT READ THIS INSTRUCTION MANUAL CAREFULLY before attempting to operate the transceiver. EXPLICIT DEFINITIONS DEFINITION Personal injury, fire hazard or electric R WARNING shock may occur. This manual contains important safety and operating instructions for the IC-78. PRECAUTIONS R WARNING HIGH VOLTAGE!NEVER attach an antenna or internal antenna connector during transmission. [. . . ] Appears when the attenuator is ON. ï Noise blanker The noise blanker reduces pulse-type noise such as that generated by automobile ignition systems. q Push the [NB] switch to turn the noise blanker ON. · [NB] indicator appears. w Push the [NB] for 1 sec. t Push [NB] again to turn the noise blanker function OFF. · [NB] indicator disappears. [NB] switch Appears when the noise blanker is ON. · When using the noise blanker, received signals may be distorted if they are excessively strong. · The noise blanker function in AM mode can be deactivated depending on initial set mode setting. 31) 19 4 OPERATION ï Meter peak hold The meter peak hold function freezes the highest displayed bar segment in any meter function for about 0. 5 sec. 31) Initial reception of a signal results in an S-meter reading of 40 dB. even when the signal strength decreases. ï IF shift function The IF shift function electronically narrows the passband frequency of the IF (intermediate frequency) and cuts out higher or lower frequency components of the IF to reject interference. The function shifts the IF frequency up to ±1. 2 KHz in SSB/CW/RTTY modes and up ±250 Hz in CW-narrow/RTTY narrow modes. The IF shift is not available in AM mode. Both controls at center position SHIFT IF SHIFT OPERATION EXAMPLE · Adjust the [SHIFT] control for a minimum interference signal level. · Set the IF shift control to its center position when there is no interference. Cutting higher passbands SHIFT Cutting a lower passband SHIFT Passband Interference Passband Interference IF center frequency Desired signal Desired signal 20 OPERATION 4 s Filter selection The filter selection switches the IF passband width as shown in the table at right. e Push [UP Y] or [Z DN] several times until "FILTER" appears on the display. r Rotate the channel selector to select desired passband width. · Either " " or " " does not appear while the normal filter is selected. ·" " appears when the narrow filter is selected. · Optional filter variations Name FL-52A FL-53A FL-96 FL-222 FL-257 Band width 500 Hz/­6dB 250 Hz/­6dB 2. 8 KHz/­6dB 1. 8 KHz/­6dB 3. 3 KHz/­6dB Mode CW/RTTY-N CW/RTTY-N SSB-W SSB-N SSB-W When an optional filter is installed, set the optional filter in initial set mode. An optional filter is not selected by default. t Push [SET] to exit quick set mode. · Filter construction (Rx) 2nd IF signal CFWS450HT (6 kHz)*3 Through FL-65 (2. 4 kHz)*1 FL-257 (3. 3 kHz)*2 FL-96 (2. 8 kHz)*2 FL-222 (1. 8 kHz)*2 FL-52A (500 Hz)*2 FL-53A (250 Hz)*2 2nd IF signal/DET *1 AM; Narrow, SSB/CW/RTTY; Normal *2 OPTION *3 AM; Normal, SSB/CW/RTTY; Wide · Filter selection table no WIDE SSB NORMAL NARROW WIDE CW NORMAL NARROW WIDE RTTY NORMAL NARROW WIDE NORMAL NARROW 6 kHz* 2. 4 kHz -- 6 kHz* 2. 4 kHz -- 6 kHz* 2. 4 kHz -- -- 6 kHz 2. 4 kHz FL-52A 6 kHz* 2. 4 kHz 500 Hz* 6 kHz* 2. 4 kHz 500 Hz 6 kHz* 2. 4 kHz 500 Hz -- 6 kHz 2. 4 kHz 500 Hz* FL-53A 6 kHz* 2. 4 kHz 250 Hz* 6 kHz* 2. 4 kHz 250 Hz 6 kHz* 2. 4 kHz 250 Hz -- 6 kHz 2. 4 kHz 250 Hz* FL-96 6 kHz* 2. 8 kHz 2. 4 kHz -- 6 kHz* 2. 8 kHz 2. 4 kHz -- 6 kHz* 2. 8 kHz 2. 4 kHz -- -- 6 kHz 2. 4 kHz 2. 8 kHz* FL-222 6 kHz* 2. 4 kHz 1. 8 kHz* 6 kHz* 2. 4 kHz 1. 8 kHz 6 kHz* 2. 4 kHz 1. 8 kHz -- 6 kHz 2. 4 kHz 1. 8 kHz* FL-257 6 kHz* 3. 3 kHz 2. 4 kHz -- 6 kHz* 3. 3 kHz 2. 4 kHz -- 6 kHz* 3. 3 kHz 2. 4 kHz -- -- 6 kHz 2. 4 kHz 3. 3 kHz* AM *Can be used when the expanded filter selection is turned on in the initial set mode. (see next page) 21 4 OPERATION s Filter setting When an optional filter is installed, set the optional filters in initial set mode. 33) D Optional filter setting q While pushing and holding [SET], push [PWR] to enter initial set mode. w Push [UP Y] or [Z DN] several times until "FIL" appears on the display. e Rotate the channel selector to select the installed filter. · "no, " "52A, " "53A, " "96, " "222" and "257" indicate no optional filter, FL-52A, FL-53A, FL-96, FL-222 and FL-257, respectively for 455 kHz IF filter selection. r Push [PWR] for 1 sec. to exit initial set mode. D Expanded filter selection The selectable filter combinations can be expanded by setting the expanded filter selection to ON. q While pushing and holding [SET], push [PWR] to enter initial set mode. w Push [UP Y] or [Z DN] several times until "EXP FIL" appears. [. . . ] A data area or sub command is added for some commands. mini-plug cable CONTROLLER TO IC-78 q w e r t y u OK MESSAGE TO CONTROLLER Data area FD FE FE E0 62 FB FD FE FE 62 E0 Cn Sc Transceiver's default address OK code (fixed) Transceiver's default address NG code (fixed) Preamble code (fixed) Controller's default address Preamble code (fixed) Transceiver's default address Controller's default address Command number (see table at right) Sub command number (see table at right) BCD code data for frequency or memory number entry End of message code (fixed) IC-78 TO CONTROLLER q w e r t y u NG MESSAGE TO CONTROLLER Data area FD FE FE E0 62 FA FD FE FE E0 62 Cn Sc Controller's default address Transceiver's default address Controller's default address Preamble code (fixed) Command number (see table at right) Sub command number (see table at right) Preamble code (fixed) BCD code data for frequency or memory number entry End of message code (fixed) End of message code (fixed) End of message code (fixed) 41 9 CONTROL COMMAND · Command table Command 00 01 02 03 04 05 06 08 0E 11 14 Sub command -- -- -- -- -- -- -- -- -- 00 01 -- 01 02 03 01 02 02 22 44 00 Description Send frequency data Send mode data Read Upper/Lower frequencies Read frequencies Read operating mode Set operating frequency Set mode Set memory Set memory channel Scan stop Memory scan start ATT AF gain RF gain Squelch level Read squelch Open/Close Read S-meter level PREAMP Noise blanker Microphone compressor Read ID 15 16 19 s Data cloning between transceivers · Data cloning The IC-78's data (programmed frequencies, channel comment, both quick and initial set mode conditions, etc. ) can be copied to the other IC-78. This function is useful when exactly the same setting of the IC-78s is required. · Cloning operation q Turn power OFF. w Connects a mini-plug cable between two IC-78's (master and sub) [REMOTE] jack. t Push [TONE] of the master IC-78 to start cloning. Master transceiver indication [REMOTE] jack to [REMOTE] Mini-plug cable to other IC-78's [REMOTE] Daughter transceiver indication · After cloning complete; Daughter transceiver indication e While pushing [TXF] and [FC], turn the master IC78 power ON. [. . . ]

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