Yaesu FT-991 User Manual

Page 32 FT-991 OperaTing Manual
7. RotatetheMainTuningDialknobtotunearoundthe
band,andbeginnormaloperation.
Advice:

 ClockwiserotationoftheMainTuningDialknob
increasestheoperatingfrequency,one“step”
of the synthesizer at a time; similarly, counter-
clockwiserotationoftheMainTuningDialknob
willdecreasethefrequency.Twosettings,one
“normal” andone “fast”, areavailable for each
operating mode. Pressing the
FAST
 buttonen-
gages the“Fast” tuning selection(seechart be-
low).
MAin tuning diAl knob tuning rAte
operAting Mode 1 Step 1 diAl rotAtion
LSB/USB/CW/RTTY/
DATA-LSB/DATA-
USB/AM
5 Hz (100 Hz)
10 Hz (100 Hz)
1 kHz (20 kHz)
2 kHz (20 kHz)
FM/DATA-FM/C4FM 100 Hz (1 kHz) 20 kHz (200 kHz)
Numbers in parentheses indicate steps when the FAST button is On.

 Ifyouwanttomakerapidfrequencychanges,
thereareseveraltechniquesavailable:

 Directkeyboardentryofthefrequency.

 Usethemicrophone
UP
/
DWN
scanning keys,
ifyourmicrophoneissoequipped.
basic operation:
receivinG on aMateur banDs

Yaesu FT-991 Specifications

General

Frequency Range Transmit	1.8 MHz - 54 MHz, 144 MHz - 148 MHz, 430 MHz - 450 MHz
Antenna Impedance	50 Ohms
Antenna Connector	SO-239
Supply Voltage	13.8 V DC ±15%
Modes	SSB, CW, AM, FM, C4FM Digital
Display	3.5-inch color TFT LCD
Weight	4.3 kg