Icom IC-718 Instruction Manual - Page 32

Split frequency operation - power cable

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5 RECEIVE AND TRANSMIT s Split frequency operation Split frequency operation allows you to transmit and receive on two different frequencies. Split frequency operation uses two frequencies, one in VFO A and the other in VFO B. Following is an example of setting 7.057 MHz, CW mode in VFO A (for receive) and 7.025 MHz, CW mode in VFO B (for transmit). q Select VFO B and set the frequency to 7.025 MHz/ CW. w Push [A/B] to select VFO A and set the frequency to 7.057 MHz/CW. e Push [SPL] to turn the split frequency operation ON. • Split operation is now set for receive 7.057 MHz/CW and transmit 7.025 MHz/CW. • To change the receive frequency, rotate the main dial, to change the transmit frequency, rotate the main dial during transmit mode. To exchange the transmit and receive frequencies, push [A/B]. s SWR The IC-718 has a built-in circuit of measuring antenna SWR-no external equipment or special adjustments are necessary. ï Measuring SWR q Confirm that the output power is over 30 W. w Push [SET] one or more times to select the SWR meter. e Push [MODE] one or more times to select CW or RTTY operation. • Key down or push [PTT] to transmit; then read the actual SWR from the meter: ≤ 1.5 well matched antenna ≥ 1.5 check antenna or cable connection, etc. The best match is in this range. 30

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30
5
RECEIVE AND TRANSMIT
■
Split frequency operation
Split frequency operation allows you to transmit and
receive on two different frequencies. Split frequency
operation uses two frequencies, one in VFO A and
the other in VFO B.
Following is an example of setting 7.057 MHz, CW
mode in VFO A (for receive) and 7.025 MHz, CW
mode in VFO B (for transmit).
q
Select VFO B and set the frequency to 7.025 MHz/
CW.
w
Push [A/B] to select VFO A and set the frequency
to 7.057 MHz/CW.
e
Push [SPL] to turn the split frequency operation
ON.
•Split operation is now set for receive 7.057 MHz/CW
and transmit 7.025 MHz/CW.
• To change the receive frequency, rotate the main dial,
to change the transmit frequency, rotate the main dial
during transmit mode.
To exchange the transmit and receive frequencies,
push [A/B].
■
SWR
The IC-718 has a built-in circuit of measuring antenna
SWR—no external equipment or special adjustments
are necessary.
ï
Measuring SWR
q
Confirm that the output power is over 30 W.
w
Push [SET] one or more times to select the SWR
meter.
e
Push [MODE] one or more times to select CW or
RTTY operation.
•Key down or push [PTT] to transmit; then read the
actual SWR from the meter:
≤
1.5 well matched antenna
≥
1.5 check antenna or cable connection, etc.
The best match is in this range.