Ipo (Intercept Point Optimization) - Yaesu FTdx5000 Series Operating Manual

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.
Press the [ IPO ] knob briefly, to quickly set the IPO to
"AMP1".
[ A ] Button
[ IPO ] Knob
AMP1
AMP
AMP2
IPO1
IPO1
IPO2
A :
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.
FT 5000 O
DX
C
IPO I
NTERCEPT
AMP
IPO2
M
P O
OINT PTIMIZATION
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.
Press the [ IPO ] knob briefly, to quickly set the IPO to
"AMP1".
[ IPO ] Knob
AMP1
AMP2
F
[ B ] Button
AMP
AMP
IPO1
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