Filter
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14
3 GETTING ACQUAINTED
$7 M.CH/VFO.CH control
In VFO mode, turn to step the frequency up or down
{page 21}. In memory channel mode, turn to select the
desired memory channel {page 55}. The control is also
used for selecting boundaries for the Automatic Mode
function {page 48} and for selecting Menu numbers
when accessing the Menu {page 24}.
MICROPHONE
q UP/DWN buttons
Use these buttons to step the VFO frequency or
memory channels up or down. The selected frequency
or channel will change continuously in the direction of
the button label if a button is pressed and held down.
w PTT (Push-to-Talk) switch
The transceiver is placed in transmit mode when this
non-locking switch is held down. Releasing the switch
returns the transceiver to receive mode.
$1 NB button
Press to switch the analog Noise Blanker function ON or
OFF. This function works best against short duration
pulse noise {page 53}.
$2 AF gain control
Adjusts the audio frequency gain. Turn the control
clockwise to increase the gain; counterclockwise to
decrease the gain {page 19}.
$3 RF gain control
Adjusts the radio frequency gain. Turn the control
clockwise to increase the gain; counterclockwise to
decrease the gain {page 19}.
$4 RIT/XIT control
After switching ON the RIT or XIT function, turn to select
the desired frequency offset with respect to the current
frequency {pages 44, 45}.
$5 NB control
When using the Noise Blanker function, turn to adjust
the noise blanking level {page 53}. To prevent distorting
your receive signal, use the minimum blanking level
necessary.
$6 SQL control
The Squelch control can be used for muting the receiver
during no signal periods. The more clockwise that the
control is turned, the higher the noise threshold level.
Therefore, the stronger the received signal must be to
open the squelch. Leave fully counterclockwise for
weak signal reception {page 19}.
PTT
DWN UP
q
w
50
49
38
27
16
RX TX
OFF
CAR DELAY
AGC KEY SPEED
METER PROC MONI
0
2
46
8
100
2
46
8
10
AUTO
NOTCH
BEAT
CANCEL
N.R. TX EQ.
LO/WIDTH
FILTER
HI/SHIFT
MIC
ATT
ANT DOWN UP
VOX FULL/SEMI
AT TUNE
SEND
THRU/AUTO
AIP
PHONES
PROC MONI
MIC PWR
AF RF
NB SQL
M.IN
REC F.LOCK
CH 4 CLR
CH 3 SCAN
CH 2 M>VFO
CH 1 M.IN
ENTER TF-SET
MODE
LSB
/USB
FSK
/— R
CW/— R
FM/AM
FINE
1MHz DOWN UP
A=B MENU
RIT
RIT/XIT
M.CH/VFO.CH
XIT CLEAR NB
A
B
M.CH
QUICK MEMO
MR
SLOW FAST
0
2
46
8
10
0
2
46
8
10
0
2
46
8
10
DIGITAL SIGNAL PROCESSOR
HF TRANSCEIVER TS-870
ON AIR AT TUNE
$1
$2
$3
$4
$5
$6
$7