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Page 49FT
DX
1200 OPERATING MANUAL
IPO
(
INTERCEPT POINT OPTIMIZATION
)
The I32 feature allows the operator to optimi]e the characteristics of the receiver front end, depending on the current
noise level and the strength of incoming signals.
3ress the
[
IPO
]
button repeatedly, to set the desired
characteristic of the receiver front end, according to the
chart below.
AMP1
$mpli¿es the incoming signals, using a low
distortion 5F preampli¿er gain approx. 10
dB).
AMP2
$mplifies the incoming signals, using a
-stage low-distortion 5F preampli¿er total
gain approx. 0 dB).
IPO
Bypasses the 5F preampli¿er, yielding direct
feed to the ¿rst mixer.
The selected receiver 5F preampli¿er will be indicated
in the I32 column of the .ey Function 'isplay on the
TFT display.
ADVICE:
2n the 10 0H] and lower bands, it generally is not
necessary to use any preampli¿er at all selecting the
“I32” 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.
INTERFERENCE REJECTION
[
IPO
]
Button
KEY FUNCTION DISPLAY
Indicates which
IURQWHQG5)DPSOL¿HU
51


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  • Green Light on VFO A and MEM is flashing and no audio. Even tried Factory Reset and still flashing. How do I fix this? Submitted on 6-12-2022 at 07:37

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