Icom IC-751A Instruction Manual page 42

3) RIT function activated.
Receive : 14.2639MHz
Transmit: 14.2678MHz
use Rrr
/
" -,
,-
-,
,-,
t 1.
C D
t.
D -
3 9 [/
VFOA
Push RIT SWITCH to turn OFF the RIT.
Receive : 14.2678M Hz
Transmit: 14.2678MHz
use
,u:,c -,o
I I. L LI I. LI
VFOA
4) RIT already activat~d.
Receive : 14.2639M Hz
Transmit: 14.2678MHz
use
11_1:,c
ïO
I I. L LI I. LI
VFOA
RIT
- :, 0 ,-,
_1. _I !..I
,-,
!..I
Push LITX SWITCH to turn ON the L1TX function.
Receive : 14.2639MHz
Transmit: 14.2639MHz
use RIT Mx
I
ILII,:,:=,
,p_Jo , - ,
• - - /. _, _I.
_I
!..I
VFOA
5) Push LlTX SWITCH to turn OFF the LlTX func-
tion.
use
I
Il -, C -,
□
t 1. C
LI ,.
D
VFOA
,-,
!..I
6) Push L1 TX SWITCH to aga in turnON the L1 TX
function.
use
~IX
I LI
-,
E,
-,
,-,
-,
,:,
,-,
I
' ·
C
,.
D
-
:,_
_,
!..I
VFOA
7 - 11 MONITOR OPERATION
3) As with the RIT function, the amount of shift selected with the
INCREMENTAL TUNING CONTROL is maintained in a me-
mory whether the L1TX function is ON or OFF. A shift value
selected while the RIT was activated becomes the L1TX shift when
the L1TX function is turned ON.
Push L1TX SWITCH to turn ON the LITX function.
Receive : 14.2678MHz
Transmit: 14.2639MHz
use ~rx
/ Lf.ë'
E,
7.8-39 [/
VFOA
4) If the RIT and L1TX functions are both activated, the receive and
transmit frequencies will be equal but shifted from the displayed
frequency by the shift value. Varying the INCREMENTAL
TUNING CONTROL changes bath the transmit and receive
frequencies simultaneously.
Push RIT SWITCH to turn OFF the RIT function.
Receive : 14.2678MHz
Transmit: 14.2639MHz
use ~rx
I
t,' . _, : ,
,_c, ,,
P, -
J
o ,-,
• - _I _ _ I !..I
VFOA
5) Push the L1TX SWITCH again to turn OFF the L1TX function. The
letters "L1TX" and the amount of shift are no longer displayed.
6) When the L1TX function is OFF, the transmit and receive fre-
quencies are as indicated on the frequency display regardless of
what amount of shift is selected. Activation of the L1TX function
recalls the shift value from memory.
7) To add the L1TX shift value to the displayed frequency, push the
FUNCTION SWITCH, then push the RIT/L1TX CLEAR SWITCH.
The value of the L1TX shift automatically resets to 0.0.
The transmit IF signal may be monitored while using SSB if desired.
This circuit is included to allow checking of the quality of the trans-
mitted signal, especially useful when using the RF speech com-
pressor.
1) Turn the MONITOR SWITCH on the top cover ON.
2) Adjust the MONITOR LEVEL CONTROL on the top panel for a
comfortable audio level.
3) Wear headphones while using the monitor function to prevent
howling sounds caused by feedback.
See SECTION 3 - 3 TOP PANEL for the contrai and switch
locations.
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