Yaesu FT DX 3000 User Manual

Page 53FT
DX
3000 OperaTing Manual
IF BANDWIDTH
Desired Signal Desired Signal Desired Signal
QRMQRM
IF BANDWIDTH IF BANDWIDTH
SHIFT SHIFT SHIFT
inTerFerence rejecTiOn
iF SHiFt opeRAtioN
(
SSb/cw/Rtty/pKt/AM ModeS
)
IF SHIFT allows you to move the DSP lter passband higher or lower, without changing the pitch of the incoming sig-
nal, and thus reduces or eliminates interference. Because the carrier tuning frequency is not varied, there is no need to
re-tune the operating frequency to eliminate the interference. The total passband tuning range for the IF SHIFT system
is ±1 kHz.
1. Rotate the
[
SHIFT
]
knob to the left or right to re-
duce the interference.
Advice:
The display will show the shift value of the IF
SHIFT for 3 seconds whenever the
[
SHIFT
]
knob is
turned.
Advice:
The center position of the IF passband will be memo-
rized independently on each VFO stack of VFO-A and
VFO-B.
Referring to Figure “
A
”, note the depiction of the
IF DSP lter as the thick line, with the
[
SHIFT
]
knob in the 12 o’clock position. In Figure “
B
”, an
interfering signal has appeared inside the original
passband. In Figure “
C
”, you can see the effect
of rotating the
[
SHIFT
]
knob. The interference
level is reduced by moving the lter passband so
that the interference is outside of the passband.
[
SHIFT
]
Knob
A B C
SHiFt iNdicAtoR

Yaesu FT DX 3000 Specifications

General

Type	HF/50 MHz Transceiver
Antenna Impedance	50 ohms
Frequency Range	1.8 - 54 MHz
Modes	SSB, CW, AM, FM
Receiver Type	Triple conversion superheterodyne
Audio Output	2.5 W
Supply Voltage	13.8 V DC ±15%
Current Consumption	22 A