Icom IC-7850 Instruction Manual page 20

1
PANEL DESCRIPTION
Front panel (Continued)
■
@3
@4
@5
@6
@3 AGC CONTROL [AGC]
Rotate to adjust the continuously-variable AGC cir-
cuit time constant.
• To use the [AGC] control, push the appropriate band's
[AGC VR] (The [AGC VR] indicator lights white).
@4 AGC VOLUME KEY [AGC VR]
Push to toggle the [AGC] control ON or OFF.
➥
• Use the [AGC] control to set the AGC time constant
when switched ON.
• The [AGC VR] indicator above this key lights white
when the control is ON.
Hold down for 1 second to turn OFF the AGC
➥
function.
@5 AF CONTROL [AF]
Rotate to adjust the audio output level of the speak-
er or headphones.
@6 RF GAIN CONTROL [RF]
Rotate to adjust the RF gain level.
While rotating the RF gain control, you may hear
noise. This comes from the DSP unit and does
not indicate a malfunction.
@7 FUNCTION KEYS [F-1]–[F-7]
Push to select the function indicated in the display
above these keys.
• Functions vary, depending on the operating mode.
#0 @9
@7
(p. 7-4)
(p. 7-4)
(p. 4-4)
(p. 4-4)
@8
@8 MODE KEYS
Selects the desired mode.
• The Voice synthesizer announces the selected mode.
(p. 16-2)
➥ Push to alternately select the USB or
➥ Push to alternately select the CW or
➥ Push to toggle between the RTTY and
➥ Hold down for 1 second to toggle be-
➥ Hold down for 1 second to toggle be-
➥ Push to alternately select the AM or FM
➥ Push to toggle between the SSB, AM, or
➥ Hold down for 1 second to toggle be-
@9 TRANSMIT INDICATOR [TX]
Lights red while transmitting.
• The SUB band's [TX] indicator lights only when in split
operation.
1-4
(p. 4-10)
LSB mode.
CW-R mode.
(CW reverse)
PSK modes.
tween the RTTY and RTTY-R
modes.
verse)
tween the PSK and PSK-R
modes.
mode.
FM data
(USB-D, LSB-D, AM-D, FM-D)
voice modes.
tween D1, D2, and D3.
(RTTY re-
(PSK reverse)
and