Kenwood TS-711A Instruction Manual page 14

FUNCTION CONTROLS AND SWITCHES
@® RIT
RIT (Receiver Incremental Tuning) is a function to only
shift receive frequency without changing transmit fre-
quency.
1. The RIT variable range is +9.99 kHz. The two most
significant digits are displayed.
2. The RIT allows you to obtain the exact frequency of the
other station.
3. Restoring to "0.0" (zero offset) can be done simply, by
pressing the CLEAR switch.
4. The RIT works in any mode, COM ch, M ch, or dial
locked.
5. The RIT frequency display works even with the RIT
switch OFF, and allowing you to preset the RIT.
@ IF SHIFT
Turned in © direction Turned in @ direction
IF filter passband
i characteristic teh
Interfering signal
Interfering signal
SQL —@> iF SHIFT SQL —@> IF SHIFT
Ke
SQL ~@> IF SHIFT
KE
® oO ®
Turn in © direction
to eliminate inter-
ference from signal
Turn in @ direction
to eliminate inter-
ference from signal @)
The IF SHIFT control is used to shift the passband of the IF
filter without changing receive frequency. By turning this
control in either direction, the IF passband is shifted as
shown in above figure. The IF SHIFT is effective in elimin-
ating interference when nearby signals are supperimposed
on the receive signal during either SSB or CW operation.
IF SHIFT does not operate in FM mode.
a) To eliminate interference from signal (B), turn counter-
clockwise (-).
b) To eliminate interference from signal (A), turn clockwise
(+).
14
@ RF GAIN control
For normal operation, this control should be turned fully
clockwise for maximum sensitivity. Receive sensitivity is
reduced by turning the control counterclockwise. :
Adjust the RF control so the S-meter does not show ex-
cessive deflection. This minimizes noise during reception
and allows the S-meter to indicates signal peak (or a little
below that point). Noise is markedly reduced when signal
is absent.
S meter peak point
AF -@— RF
6
1 or -s7 20 40 60
48
0
S-meter reading Full
Signals below at partial counter Clockwise
position
this level are clockwise position
attenuated of RF GAIN control
AF-—@— AF
6
20 40 60
dB Turn
counter-
clockwise
lo
RF PWR control
RF GAIN Control Operation
@ RF PWR control
Gacacachda
BEE es
U0 0
This function continuously varies transmit power output
from approx. 2W through the maximum (rated output) in
any mode. In QSO is with local stations (relatively near
stations), lowering the transmit power output, reduces in-
terference to other stations, and also saves on power con-
sumption. RF 8 of the meter graduation corresponds to
the rated output (at 50-ohm load). Meter reading "RF 6"
indicates approx. 1/2 the rated output. Minimum RF
power output is indicated by meter reading "RF 1 ~ 2".
MIC ——RF PWR
@ Auto reset thermal protector
This unit is equipped with a thermal protector circuit
which prevents part deterioration due to heat caused
from continuous transmission. If the PTT switch is left
on or the transmission continuous for 40 minutes to 1
hour, the auto reset thermal protector functions to stop
operation.
At this time, leave the unit for 10 — 15 minutes to cool
it. If your unit is equipped with a cooling fan, keep the
fan activated.