Dplot Measurement - Icom IC-705 Advanced Manual

9. OTHER FUNCTIONS
Measuring SWR

DPlot measurement

You can measure the SWR over the entire set
frequency range.
1. Set the desired frequency band.
2. Set the RF power to more than 5 W.
3. Display the SWR GRAPH screen.
» SWR
4. Set the center frequency for the SWR to
measure. (Example: 14.080.00)
5. Touch [STEP] several times to set the
measuring step, or touch [BAR] several times
to set the number of graph bars.
Center frequency
LYou can select between 10, 50, 100, and 500
kHz measuring steps.
LYou can select between 3, 5, 7, 9, 11, and 13
graph bars.
6. Touch
7. Hold down [PTT] to transmit.
Measuring step
Number of
graph bars
8. Release [PTT] to stop transmitting.
9. Repeat steps 7 and 8 to measure the SWR
TIP:
• Rotate
• "<<" (low) or ">>" (high) is displayed when the
• Touch [RECALL] for 1 second to move the
• Touch the bar graph to delete the measured SWR.
9-3
to start measuring.
• Displays the frequency marker "▲" and the
measurement frequency.
NOTE: Before transmitting, monitor the
operating frequency to make sure you will not
cause interference to other stations on the same
frequency.
• The bar graph displays the SWR.
LWhen the Break-in function is ON in the CW
mode, you can use a straight key or paddle to
transmit.
Frequency marker
Measuring SWR
LWhen using a straight key or paddle, stop
keying.
over the entire frequency range.
The center frequency is displayed
after the measurement
to move the frequency marker
"▲" to the current transmit frequency.
transmitted frequency is out of the displayed
range.
frequency marker "▲" back to the center
frequency.
Measurement
frequency
The best match is
within this range.
(1.5 or less)