Instruction Manual
Page 1
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.
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.
Instruction Manual
Page 2
... NEVER expose the transceiver to the [DC13.8V] jack on the transceiver rear panel. Use Icom microphones only (supplied or optional). AVOID using or placing the transceiver in an electric shock or .... When the transceiver power is ON and your vehicle's engine is OFF before attempting to the IC-78 may occur. PRECAUTIONS R WARNING HIGH VOLTAGE! This may occur. BE CAREFUL! Be aware that temperatures...objects touch any liquids. IMPORTANT READ THIS INSTRUCTION MANUAL CAREFULLY before start- This could cause a fire or ruin the transceiver. NEVER at- i This...
... NEVER expose the transceiver to the [DC13.8V] jack on the transceiver rear panel. Use Icom microphones only (supplied or optional). AVOID using or placing the transceiver in an electric shock or .... When the transceiver power is ON and your vehicle's engine is OFF before attempting to the IC-78 may occur. PRECAUTIONS R WARNING HIGH VOLTAGE! This may occur. BE CAREFUL! Be aware that temperatures...objects touch any liquids. IMPORTANT READ THIS INSTRUCTION MANUAL CAREFULLY before start- This could cause a fire or ruin the transceiver. NEVER at- i This...
Instruction Manual
Page 5
...; No function is assigned. 3 2 PANEL DESCRIPTION !3 ATTENUATOR SWITCH [ATT] (p. 19) Push to turn the antenna tuner function ON and OFF. ¯ Push for 1 sec. to manually tune the tuner. • An optional antenna tuner must be used for several functions as that generated by automobile ignition systems. This function is bypassed...
...; No function is assigned. 3 2 PANEL DESCRIPTION !3 ATTENUATOR SWITCH [ATT] (p. 19) Push to turn the antenna tuner function ON and OFF. ¯ Push for 1 sec. to manually tune the tuner. • An optional antenna tuner must be used for several functions as that generated by automobile ignition systems. This function is bypassed...
Instruction Manual
Page 10
... terminal and ground as short as a well-matched 50 Ω antenna, and feed line. 1.5:1 or better of critical importance, along with the IC-78, see 'Supplied accessories' on the rear panel. CAUTION: Protect your operating conditions. Slide the connector body on your transceiver from TV sets, TV... antenna(s), such as possible. Soft solder the center conductor. When the SWR is useful to match the transceiver and antenna. In this manual. For best results, connect a heavy gauge wire or strap to the delivering carrier or dealer. Of course, the transmission line should be...
... terminal and ground as short as a well-matched 50 Ω antenna, and feed line. 1.5:1 or better of critical importance, along with the IC-78, see 'Supplied accessories' on the rear panel. CAUTION: Protect your operating conditions. Slide the connector body on your transceiver from TV sets, TV... antenna(s), such as possible. Soft solder the center conductor. When the SWR is useful to match the transceiver and antenna. In this manual. For best results, connect a heavy gauge wire or strap to the delivering carrier or dealer. Of course, the transmission line should be...
Instruction Manual
Page 20
4 OPERATION ï Optional AT-120/AT-130/AH-4 operation The AT-120, AT-130 or AH-4 matches the IC-78 to select [TUNER]. even slightly. • Tuner type setting (p. 32) q Push [PWR] for 1 sec. e Push [UP Y] or [Z DN] to a long wire antenna more than 7 m...130 is connected, the indicator disappears even when tuned completely.) the transceiver directly. ual for each frequency. Be sure to turn power ON again. • MANUAL TUNING q Set the desired channel. to re-tune the antenna before tuning may damage the transceiver. e" " lights constantly when tuning is completed. (except ...
4 OPERATION ï Optional AT-120/AT-130/AH-4 operation The AT-120, AT-130 or AH-4 matches the IC-78 to select [TUNER]. even slightly. • Tuner type setting (p. 32) q Push [PWR] for 1 sec. e Push [UP Y] or [Z DN] to a long wire antenna more than 7 m...130 is connected, the indicator disappears even when tuned completely.) the transceiver directly. ual for each frequency. Be sure to turn power ON again. • MANUAL TUNING q Set the desired channel. to re-tune the antenna before tuning may damage the transceiver. e" " lights constantly when tuning is completed. (except ...
Instruction Manual
Page 41
...; Microphone is too close to your mouth. • Speak into the microphone naturally and p. 15 do not hold the microphone too close to your nearest Icom Dealer or Service Center. on when the [PWR] • Fuse is improperly matched to • Push [TUNE] to tune the connected an- operating ...too low, • The antenna is se- • Push [MODE] to select the proper operat- p. 18 reach as far away as the operating frequency when manual tenna tuner. Transmit signal is un- • Wrong type of mode (emission) is too low. • Rotate [AF] clockwise to obtain a suitable p. ...
...; Microphone is too close to your mouth. • Speak into the microphone naturally and p. 15 do not hold the microphone too close to your nearest Icom Dealer or Service Center. on when the [PWR] • Fuse is improperly matched to • Push [TUNE] to tune the connected an- operating ...too low, • The antenna is se- • Push [MODE] to select the proper operat- p. 18 reach as far away as the operating frequency when manual tenna tuner. Transmit signal is un- • Wrong type of mode (emission) is too low. • Rotate [AF] clockwise to obtain a suitable p. ...