Icom IC-701 User Manual

“1. “A” VEO is for both transmitting and receiving and is
selected by placing the VFO Select switch in the “A”
position. The transmit and receive frequency will be
controlled by “A’’ VFO, displayed on the LED fre-
quency readout, and stored in “A" memory.
2. ““B’ VEO is for both transmitting and receiving and is
selected by placing the VFO Select switch in the “B”’
position. The transmit and receive frequency will be
controlled by “‘B’’ VFO, displayed on the LED fre-
quency readout, and stored in ‘“B’’ memory.
3. RA-TB: The receive frequency is controlled by “A”
VFO and the transmit frequency is controlled by “B”’
VFO. Both frequencies are stored in their respective
memories, and displayed during their respective ope-
ration times (““A’” frequency during receive, and “B”’
frequency during transmit).
4. RB-TA: The receive frequency is controlled by “’B”
VFO and the transmit frequency is controlled by “A”
VFO, the reverse of the above. Again, both frequencies
are stored in their respective memories, and displayed
during their respective operation times (this time “B”’
frequency during receive and ‘A’ frequency during
transmit).
When the !IC-701 is first turned ON, the frequency displayed
on the LED readout is the lowest frequency limit of the
band selected by the band switch.
FOR EXAMPLE:
lf the band switch is set to the 7MHz band, when the set
is turned ON, 7.000.0 will be displayed on the LED readout.
This will occur whether the VFO switch is in either the “A”’
or “B’ or combination VFO position. Rotating the tuning
knob clockwise will increase the frequency in 100Hz steps.
Rotating the tuning knob counter-clockwise will decrease
the frequency in 100Hz steps. Note: Rotating the knob
counter-clockwise immediately after applying power will
not lower the frequency as it is already at the lowest limit.
Switching from one VEO to the other VFO does not clear
the first VFO. The frequency is retained in the VFO’s
memory.
EXAMPLE
lf 14.125.0MHz is set with ““A’’ VFO, and the VFO switch
is set to ““B’’ VFO, the frequency LED readout will show
“B’’ VEQO’s frequency, but 14.125.0MHz is still stored in
“A” VEQ’s memory. Returning the VFO switch to “A”
VFO position, and 14.125.0 will be displayed on the
readout. Accordingly, if the switch is placed in the “’B”
VFO position, the frequency that was set with the “‘B”’
VFO will appear. This allows you to set a certain frequency
with one VFO, work up and down the band with the other
VFO, and periodically check the set frequency simply by
switching between “A” and “B” VFO. It also allows you
to search for aclear frequency with one VFO, while keeping
your operating frequency on the other VFO. When you
have found a clear frequency, switch back to your operating
frequency, inform the station you are in contact with of
the new frequency, and switch back. It’s that simple!
The 1C-701 will perform this operation even on two dif-
ferent bands. A frequency is set in either “A” or “B’’ VFO
on one band, the VFO switch is set to the other VFO, and
the band switch set to any other band you wish to work.
When you want to go back to the set frequency, first return
to the original band and then to the original VFO and
you’re back on the set frequency.
FOR EXAMPLE
Set “A” VFO to 14.255.0MHz. Set the VFO switch to
“B’’ VFO. Switch to the 21MHz band. The frequency
readout will read 21.000.0MHz. Operate anywhere you
wish with “B’ VFO. When you want to return to
14.255.0MHz, first switch back to the 14MHz band. Then
switch to “‘A’’ VFO and the frequency readout wil! show
14.255.0MHz.
When recalling a memorized frequency be sure to turn OF F
the dial fast circuit. If the circuit is not turned OFF, the
memorized frequency’s 1KHz and 100Hz digits will both
revert to “0”.
RA-TB/RB-TA
These positions will allow you to operate split transmit/
receive frequencies on the same band.
EXAMPLE:
Set “A” VFO to 14.350.0MHz and “‘B” VFO to 14.255.0
MHz. Then set the VFO select switch to the RA-TB
position. 14.350MHz will shown on the readout during
receive (“A’ VFO) and 14.255.0MHz during transmit
(“B’ VFO). You are now receiving on 14.350.0MHz and
transmitting on 14.255.0MHz.
Setting the VFO select switch to RB-TA re rses the above.
Changing bands in these modes resets both “A” and ‘‘B”’
VFO to the lowest band limit.
5-1-5 RIT (RECEIVER INCREMEMTAL TUNING)
By using the RIT circuit, you can shift the receive fre-
quency +800Hz either side of the transmit frequency
without moving the transmit frequency itself. Therefore, |
when you get a call slightly off frequency, or when the
other station’s frequency has shifted, you can tune in the
frequency without disturbing the transmitting frequency.
By pushing the RIT switch down once (it’s a spring loaded
switch) the RIT circuit is turned ON and the RIT LED is lit.
The receive frequency is shifted with the RIT knob.
When the RIT knob is in the “0” position, the transmitting
and receiving frequencies are the same. Rotating the
control to the (+) side raises the receiving frequency, and
rotating to the (—) side lowers the frequency. To turn OFF
the
RIT
control,
again
push
on
the
RIT
switch
and
the
RIT LED will go OFF. When the RIT circuit is OFF, the
transmit and receive frequencies are the same regardless of
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Icom IC-701 Specifications

General

Brand	Icom
Model	IC-701
Category	Transceiver
Language	English