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2-4

Required connections

D

Front panel

D

Rear panel

MAIN

SUB

ACC 1

ACC 2

ACC 1

ACC 2

ALC
ADJ

ALC

RELAY

KEY

EXT

KEYPAD

METER

DC OUT

15V

MAX1A

REF I/O

10MHz

-10dBm

IN

OUT

REMOTE

RS-232C

KEY BOARD

EXT-DISPLAY

A

B

S/P DIF

EXT-SP

ANT 1

ANT 2

ANT 3

ANT 4

GND

AC

I

X-VERTER

A

IN

RX ANT

B

RX ANT

OUT

IN

OUT

Straight key

A jumper cable is 
connected.

Antenna 1, 2, 3, 4

 (p. 2-3)

[Example]: ANT1 for 1.8–18 MHz bands, ANT 2 for 21–28 bands

ANT3 for 50 MHz band, ANT 4 for receive antenna

Ground

(p. 2-3)

Use the heaviest gauge 
wire or strap available and 
make the connection as 
short as possible.

Grounding prevents elec-
trical shocks, TVI and oth-
er problems.

AC outlet

R

 WARNING:

Use the supplied 
AC power cable 
only.

Microphones

(p. 2-9)

CW key

A straight key can be used when the 
internal electronic keyer is turned OFF in 
keyer set mode. (p. 4-12)

Optional
SM-20

Optional
HM-36

2

INSTALLATION AND CONNECTIONS

Summary of Contents for IC-7800

Page 1: ...d Antenna 1 2 3 4 p 2 3 Example ANT1 for 1 8 18 MHz bands ANT 2 for 21 28 bands ANT3 for 50 MHz band ANT 4 for receive antenna Ground p 2 3 Use the heaviest gauge wire or strap available and make the...

Page 2: ...preamp or lowpass filter External speaker p 15 4 ACC sockets pgs 2 8 2 10 Antenna 1 2 3 4 p 2 7 Connects a linear amplifier antenna selector etc X VERTER Connects a transverter for V UHF band use REL...

Page 3: ...UT Outputs regulated 14 V approx DC for external equipment power supply max 1 A capacity External keypad Connects an external keypad for direct voice memory and memory keyer controls Keyboard Connects...

Page 4: ...T setting see p 12 9 for details Use an external relay unit when your non Icom linear ampli fier require the control level that higher voltage and or larger current capacity RF OUTPUT RF INPUT SEND AL...

Page 5: ...When connecting to ACC 1 When connecting to MIC When using a PC application When using a TNC PC RS 232C TNC or scan converter PTT Audio output AF input GND AFSK output AF input GND PTT SQL input When...

Page 6: ...n be controlled while in split frequency operation The UP DN switch can simulate a key paddle Preset in the keyer set mode p 4 12 wPTT SWITCH Push and hold to transmit release to receive ePTT LOCK SWI...

Page 7: ...ator input Input impedance 10 k Connects to a modulator Input level Approx 100 mV rms AF detector output Output impedance 4 7 k 5 AF Fixed regardless of AF position Output level 100 300 mV rms in defa...

Page 8: ...ntry with the keypad 3 5 D Quick tuning step 3 6 D Selecting kHz step 3 6 D 1 4 tuning step function 3 6 D Selecting 1 Hz step 3 7 D Auto tuning step function 3 7 D Band edge warning beep 3 7 Operatin...

Page 9: ...and it takes approx 5 sec The transceiver displays its initial VFO frequencies when resetting is complete e Correct the set mode settings after resetting if de sired Under cooler temperatures the LCD...

Page 10: ...hted Push SUB to select the sub band The key backlight for SUB lights Sub band s frequency readout highlighted Selecting VFO memory mode VFO is an abbreviation of Variable Frequency Oscilla tor and is...

Page 11: ...This frequency and operating mode are memorized in the second band stacking register e Push 14 5 again then select another frequency and operating mode This frequency and operating mode are memorized...

Page 12: ...CK to deactivate the lock function see p 5 18 for details CONVENIENT The sub dial is available for when tuning frequency in sub band The sub dial allows quick tuning in sub band without main sub band...

Page 13: ...te the main dial to select the desired tuning step t Repeat steps e and r to select quick tuning steps for other modes if desired y Push EXIT SET to exit the setting display NOTE When entering into qu...

Page 14: ...UB DIAL Auto TS MAIN DIAL Auto TS for main dial SUB DIAL Auto TS for sub dial selection t Rotate main dial to select the desired condition from high low and OFF High Approx 5 times faster Low Approx t...

Page 15: ...USB and LSB Selecting CW mode Push CW to select CW After CW is selected push CW to toggle between CW and CW reverse mode Selecting RTTY PSK mode Push RTTY PSK to select RTTY or PSK After RTTY or PSK...

Page 16: ...ch removes noise output from the speaker closed position when no signal is received When no signal is received rotate SQL control fully counterclockwise first then rotate SQL clock wise to the point t...

Page 17: ...final FETs D Multi function digital meter The IC 7800 can display the multi function digital meter in the LCD display which displays all transmit meters simultaneously q Push METER for 1 sec to turn t...

Page 18: ...several times to return to normal screen if necessary w Push F 7 SET then push F 3 DISPLAY to select display set mode e Push F 1 Y or F 2 Z to select Meter type Nor mal Screen item r Rotate main dial...

Page 19: ...to other stations on the same frequency qPush METER to select the ALC meter wPush PTT microphone to transmit Talk into the microphone at your normal voice level eWhile talking into the microphone rot...

Page 20: ...e ALC meter wPush PTT microphone SSB with COMP ON AM or FM key down CW or push TRANSMIT RTTY or PSK to transmit eWhile talking into the microphone keying down or transmitting rotate DRIVE so that the...

Page 21: ...in peak filter 4 14 D Functions for the RTTY decoder indication 4 15 D Setting the decoder threshold level 4 15 D RTTY memory transmission 4 16 D Automatic transmission reception setting 4 16 D Editin...

Page 22: ...to adjust the threshold level Noise blanker indicator above NB switch lights when the noise blanker is set to ON Push NB for 1 sec to enter noise blanker set mode Twin PBT passband tuning p 5 12 Rotat...

Page 23: ...pressor ON and OFF Pushing COMP for 1 sec to select the compression bandwidth from wide middle and narrow VOX voice operated transmit p 6 2 Push VOX BK IN to turn the VOX function ON and OFF VOX appea...

Page 24: ...threshold level Noise blanker indicator above NB switch lights when the noise blanker is set to ON Push NB for 1 sec to enter noise blanker set mode Noise reduction p 5 18 Push NR switch to turn the n...

Page 25: ...ustable within 300 to 900 Hz in 25 Hz steps D CW side tone function When the transceiver is in the receive condition and the break in function is OFF p 6 3 you can listen to the tone of your CW signal...

Page 26: ...tion rotate DIGI SEL control to suit your preference D About 137 kHz band operation Europe UK Italy Spain France versions only 137 kHz band within 135 7 kHz to 137 8 kHz range operation in CW mode is...

Page 27: ...Push F 3 KEYER to select memory keyer screen e Push EXIT SET to select memory keyer menu screen r Push one of the multi function keys F 1 to F 4 to select the desired menu See the diagram below Push E...

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