Page 51
FT
DX
5000 O
PERATING
M
ANUAL
IPO
(
I
NTERCEPT
P
OINT
O
PTIMIZATION
)
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.
VFO-A IPO Setup
Press the [
A
] button to activate VFO-A receiver (The
[
A
] button will glow red).
Move the [
IPO
] knob up or down to set the desired
characteristic of the VFO-A receiver front end, per the
chart below.
AMP1
:
Amplifies the incoming signal, using a low
distortion RF preamplifier (normally, the IPO
is set to this position).
AMP2
:
Increases receiver sensitivity.
IPO1
:
Improves the IPO.
IPO2
:
Bypasses the RF preamplifier, yielding di-
rect feed to the first mixer. As a result, the
IPO is improved more.
The selected receiver RF preamplifier will be indicated
in the IPO column of the Block Diagram Display.
C
ONVENIENCE
F
EATURES
VFO-B IPO Setup
Press the [
B
] button to activate VFO-B receiver (The
[
B
] button will glow orange).
Move the [
IPO
] knob up or down to set the desired
characteristic of the VFO-B receiver front end, per the
chart below.
AMP1
:
Amplifies the incoming signal, using a low
distortion RF preamplifier (normally, the IPO
is set to this position).
AMP2
:
Increases receiver sensitivity.
IPO1
:
Improves the IPO.
The selected receiver RF preamplifier will be indicated
in the IPO column of the Block Diagram Display.
A
DVICE
:
On the 10 MHz and lower bands, it generally is not necessary to use any preamplifier at all; selecting the “
IPO
” position as
described above will increase the strong-signal-handling capability of the receiver, and usually result in more pleasant
reception due to reduced noise. If you can hear band noise with the preamplifiers disengaged, then a preamplifier is gener-
ally not needed.
[A] Button
[IPO] Knob
[B] Button
[IPO] Knob
Press the [
IPO
] knob briefly, to quickly set the IPO to
“AMP1”.
Press the [
IPO
] knob briefly, to quickly set the IPO to
“AMP1”.
AMP1
IPO1
IPO2
AMP
AMP
AMP2
IPO1
IPO2
IPO1
AMP1
AMP
AMP
AMP2
