Quick Changes; Changing Step Sizes; Fine Tuning - Kenwood TS-870S Instruction Manual

QUICK CHANGES

To move up or down in frequency quickly, use the
M.CH/VFO.CH control.
M.CH/VFO.CH
• Turn the M.CH/VFO.CH control clockwise to
increase the frequency; counterclockwise to
decrease the frequency.
Due to the large step sizes available, you can quickly
move across the band. When the minimum or
maximum receive frequency for the transceiver is
reached, turning the M.CH/VFO.CH control will not
decrease or increase respectively the frequency.
Menu No. 44 (STEP.ADJ) affects how the
M.CH/VFO.CH control tunes. When Menu No. 44 is
ON (default), rounding occurs on the first step ("click") of
the M.CH/VFO.CH control as shown below:
Step Adjust
Channel Step
(Menu No. 44)
(Menu No. 43)
ON 10 kHz
ON 5 kHz
ON 1 kHz
Example 1: Menu No. 44 (STEP.ADJ) is ON
• Menu No. 43 (CH. STEP): 10 kHz step size
• Selected frequency: 14.261.73 MHz
Turning the M.CH/VFO.CH control clockwise one step
changes the frequency to 14.270.00 MHz, and one
more step changes the frequency to 14.280.00 MHz.
The rounding occurred on the first step.
Similarly, with 14.261.73 MHz selected, turning this
control counterclockwise one step changes the
frequency to 14.260.00 MHz, and one more step
changes the frequency to 14.250.00 MHz. Again, the
rounding took place on the first step.
Example 2: Menu No. 44 (STEP.ADJ) is OFF
• Menu No. 43 (CH. STEP): 10 kHz step size
• Selected frequency: 14.261.73 MHz
Turning the M.CH/VFO.CH control clockwise one step
changes the frequency to 14.271.73 MHz, and one
more step changes the frequency to 14.281.73 MHz.
No rounding occurs.
With 14.261.73 MHz selected, turning this control
counterclockwise one step changes the frequency to
14.251.73 MHz, and one more step changes the
frequency to 14.241.73 MHz. Again, no rounding
occurs.
DIGITAL SIGNAL PROCESSOR
FULL SEMI AIP AGC AUTO PROC MONI MENU SPLIT TONE NB CTRL AUTO BEAT
A B RIT XIT WIDTH SHIFT NOTCH CANCEL N.R. TX EQ.
LO/WIDTH FILTER HI/SHIFT
AUTO LSB USB CW R FSK FM AM M. SCR PRG SCAN F. LOCK FINE MHz
ON AIR AT TUNE
RIT XIT CLEAR NB
MODE A=B MENU
RIT/XIT AF RF
ENTER TF-SET LSB
4 6
/USB
RX TX
A
8
2
CW/– R
B
0 1 0
FSK
M.CH/VFO.CH NB SQL
/– R
4 6
M.CH
2 8
FM/AM
FINE 1MHz DOWN UP
0 1 0
Rounding Effect
1 kHz, 100 Hz, and
10 Hz digits change to 0.
1 kHz digit changes to 0
or 5, and 100 Hz and
10 Hz digits change to 0.
100 Hz and 10 Hz digits
change to 0.

■ Changing Step Sizes

Select the step size that you prefer for the
M.CH/VFO.CH control via Menu No. 43 (CH. STEP).
Available step sizes are 1 kHz, 5 kHz and 10 kHz.
The default is 10 kHz.
Within the AM broadcast band, the step size
automatically defaults to 9 kHz (U.S.A./ Canada
versions: 10 kHz) for the AM mode. This step size
can be switched between 9 (ON) and 10 kHz (OFF)
via Menu No. 42 (BC. STEP). Selecting OFF in
Menu No. 42 allows you to use the step size
specified via Menu No. 43 (1, 5, or 10 kHz). While in
the AM broadcast band, changing the step size via
Menu No. 42 will change the selected frequency to
the nearest broadcast channel on the next use of the
M.CH/VFO.CH control.
If you enjoy listening to international shortwave
broadcasters, the M.CH/VFO.CH control is also the
best way to manually scan these bands. Select the
5 kHz step size via Menu No. 43 (CH. STEP) since
most shortwave broadcasters are spaced 5 kHz
apart. Set Menu No. 44 to ON. To listen to a
broadcaster on a channel that is not a 5 kHz
multiple, use the Tuning control to zero-in to the
exact frequency.

FINE TUNING

For SSB, CW, and FSK modes, the Tuning control
normally tunes through 10 kHz per revolution of the
control. For FM and AM modes, one revolution of the
Tuning control changes the frequency by 100 kHz.
These tuning rates can be halved via Menu No. 41
(F.STEP).
In addition, the Fine Tuning function reduces the step
size of the Tuning control further which allows you to
tune more slowly and precisely.
Fine Tuning
(Menu No. 41: 10 kHz)
OFF
ON
ENTER TF-SET
FINE
1MHz
Press [FINE].
• "FINE" lights.
AGC AUTO
USB
• The Fine Tuning function toggles ON and OFF each
time [FINE] is pressed.
4 OPERATING BASICS
SSB/ CW/ FSK AM/ FM
Tuning Steps Tuning Steps
100 Hz
10 Hz
10 Hz
1 Hz
7 9 VOX FULL SEMI AIP
S
M.CH
ATT 50
PWR
FILTER
ANT DOWN UP
SWR 3
COMP AUTO LSB USB
VOX FULL/SEMI AIP
HF TRANSCEIVER TS-870
ON AIR
AT TUNE THRU/AUTO METER PROC MONI 1 CH 1 6 M.IN
AGC KEY SPEED PROC MONI
ENTER
SEND
4 6 2 CH 2 7 M>VFO
8 3 CH 3 8 SCAN
2
PHONES
SLOW FAST
4 CH 4 9 CLR
OFF 0 1 0
CAR DELAY MIC PWR
MIC
4 6 4 6
5 REC 0 F.LOCK
QUICK MEMO
2 8 2 8
FINE
0 1 0 0 1 0
M.IN MR
FINE
AGC AUTO PROC MONI
CW R FSK FM AM
AT TUNE
TF-SET
1MHz
21