Operating Rtty (Fsk); D Convenient Functions For Receive - Icom IC-7200 Instruction Manual

4
RECEIVE AND TRANSMIT

■ Operating RTTY (FSK)

When using your RTTY terminal or TNC, consult the
manual that comes with the RTTY terminal or TNC.
q Push and hold
band key to select the desired band.
w Push to select RTTY mode.
MODE
• After RTTY mode is selected, push and hold
1 sec. to toggle between RTTY and RTTY-R modes.
e Rotate [DIAL] to tune in a desired signal.
• The S-meter indicates received signal strength when
signal is received.
• If the received signal cannot be demodulated, try se-
lecting RTTY-R mode (or RTTY mode).
r Transmit a SEND signal from your TNC.
• " " appears.
• The Po meter indicates the transmitted RTTY signal
strength.
t Use the connected PC or TNC (TU) to transmit
RTTY (FSK) signals.

D Convenient functions for receive

• Preamp and attenuator (p. 45)
P.AMP
➥ Push to turn the preamp ON or OFF.
ATT
• " " appears when the preamp is set to ON.
➥ Push and hold
ator ON.
P.AMP
• Push to turn the attenuator OFF.
ATT
• " " appears when the attenuator is set to ON.
• Twin PBT (passband tuning) (p. 46)
➥ Rotate [TWIN PBT] (controls–inner/outer).
• AGC (auto gain control) (p. 45)
➥ Push once or twice to select the time con-
AGC
stant for the AGC circuit fast and slow.
• "F.AGC" appears when the fast time constant is se-
lected, and no indicator appears when the slow time
constant is selected, respectively.
➥ Push and hold
function OFF.
• "AGC-OFF" appears on the display.
• Noise blanker (p. 49)
➥ Push to turn the noise blanker ON or OFF.
NB
• " " appears when the noise blanker is set to ON.
➥ Push and hold
blanker set mode, then rotate [DIAL] to adjust the
threshold level, or the blank time.
• Rotate [M-CH] to select an item.
39
F-INP ENT
for 1 sec., then push a
BAND
MODE
P.AMP
for 1 sec. to turn the attenu-
ATT
for 1 sec. to turn the AGC
AGC
for 1 sec. to enter the noise
NB
for
Appears while transmitting.
"RTTY" or "RTTY-R" appears.
• Noise reduction (p. 50)
➥ Push to turn the noise reduction ON or OFF.
NR
• " " appears when the noise reduction is ON.
➥ Push and hold
reduction level set mode, then rotate [DIAL] to
adjust the noise reduction level.
• Manual notch filter (pgs. 51, 52)
➥ Push to turn the manual notch filter ON or
MNF
OFF.
• " " appears when the manual notch filter is set to
ON.
➥ Push and hold
ual notch filter set mode, then rotate [DIAL] to se-
lect the filter width from narrow, middle and wide.
• ¼ function (p. 78)
q Push and hold
the set mode.
w Rotate [M-CH] to select "DIAL ¼".
e Rotate [DIAL] to turn the
r Push M-CH/RIT
SET
normal operation.
Band keys
NR
NB
1
V/M A/B
=
1.8 3.5
4
MW M-CL
10 14
7
COMP SCAN
21 24
.
MODE TS
RIT MNF
GENE 50
TUNER FILTER
P.AMP
ATT
M-CH/RIT
SPCH
SET
[DIAL] F-INP ENT
for 1 sec. to enter the noise
NR
for 1 sec. to enter the man-
MNF
M-CH/RIT for 1 sec. twice to enter
SET
1 ⁄ function ON or OFF.
4
to exit the set mode and return to
ANF
METER
2 3
SPLIT
7
5 6
AGC
18
8 9
VOX
28
0 F-INP ENT
BAND
BAND