Yaesu FT DX 3000 User Manual

Page 49FT
DX
3000 OperaTing Manual
ipo
(
iNteRcept poiNt optiMizAtioN
)
The IPO feature allows the operator to optimize the characteristics of the receiver front end, depending on the current
noise level and the strength of incoming signals.
Press the
[
IPO
]
button repeatedly, to set the desired
characteristic of the receiver front end, according to the
chart below.
AMP1
: Amplies the incoming signals, using a low
distortion RF preamplier (gain: approx. 10
dB).
AMP2
: Amplifies the incoming signals, using a
2-stage low-distortion RF preamplier (total
gain: approx. 17 dB).
IPO
: Bypasses the RF preamplier, yielding direct
feed to the rst mixer.
The selected receiver RF preamplier will be indicated
in the IPO column of the Block Diagram Display on the
TFT display.
Advice:

The IPO selection will be memorized independently
on each VFO stack of VFO-A and VFO-B.

On the 10 MHz and lower bands, it generally is not
necessary to use any preamplier at all; selecting the
“IPO” position as described above will increase the
strong-signal-handling capability of the receiver, and
generally will result in more pleasant reception due
to reduced noise. If you can hear band noise with the
preampliers disengaged, then a preamplier is gen-
erally not needed.
Note:
The IPO feature is always on “IPO” (No RF preampli-
er) between 30 kHz and 1.7 MHz.
inTerFerence rejecTiOn
[
IPO
]
Button
blocK diAgRAM diSplAy
Indicates which front
end RF amplier

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