Other Functions; Measuring Swr; Protection Function; Selecting The Display Type And Font - Icom IC-9700 Advanced Manual

6. OTHER FUNCTIONS

Measuring SWR

The transceiver has a high-performance SWR meter.
This meter displays a stable measurement in real time,
even if the transmit output power varies frequently. You
can measure the SWR of an antenna itself through the
internal antenna tuner.
1. Select the RTTY mode.
2. Set the desired frequency band and a frequency
in the portion of the band that you use the most.
3. Set the RF POWER.
• 144 MHz band:
• 430 MHz band:
• 1200MHz band: 3 W
4. Touch the TX meter several times until the SWR
meter is selected.
NOTE: Before transmitting, monitor the operating
frequency to make sure you will not cause
interference to other stations on the same
frequency.
5. Hold down [PTT] on the microphone to transmit,
and then read the SWR on the meter.
SWR meter
The best match is within this range.
(1.5 or less)
L If the SWR meter indicates 1.5 or less, the
antenna is matched.
LIf the SWR is a high value, adjust your antenna.
6. Release [PTT] to stop transmitting.
30 W
30 W

Protection function

The transceiver has a 2 step protection function to
protect the final power amplifiers in case the antenna
SWR becomes high.
The function detects the power amplifier temperature
and activates when the temperature becomes too high.
Power down transmission
Reduces the transmission output power.
• "LMT" is displayed below
TX inhibit
Disables the transmitter.
• is displayed instead of
TX
disabled.
If the function is activated, wait until the power
amplifier cools down by using the transceiver to only
receive.
NOTE: Do not turn OFF the transceiver power when
the Protection function is activated. If you do, the
cooling fan will stop and it will take longer to cool
down.
• You can check the power amplifier temperature with
the TEMP gauge in the Multi-function meter.

Selecting the display type and font

You can select between 2 display backgrounds and
2 frequency readout fonts.

D Selecting the display background

1. Select the "Display Type" screen.
» SET > Display > Display Type
MENU
2. Set the background A or B by rotating and then
pushing
MULTI
• A: Black background (default)
• B: Blue background
3. To close the DISPLAY screen, push

D Selecting the display font

1. Select the "Display Font" screen.
» SET > Display > Display Font
MENU
2. Set the desired display font to "Basic" or "Round"
by rotating, and then pushing
• Basic (Default):
• Round:
3. To close the DISPLAY screen, push
times.
6-1
while transmitting.
while the transmitter is
.
several times.
EXIT
.
MULTI
EXIT
several