FT-2000
Operating Manual
Vertex Standard Co., Ltd.
48
Advice: In the AM and FM modes, you may independently set the tuning steps when
using the UP/DOWN switches. To set new tuning steps, use Menu items “118 tun AM
STEP” and “119 tun FM STEP.”
IPO (Intercept Point Optimization)
The IPO feature selects the characteristic of the receiver RF amplifier depending on
the receiving signal.
1. Press the [IPO] button several times to set the desired characteristic of the
receiver RF amplifier, per the chart below.
AMP1: Amplifies the receiving signal in the low distortion RF amplifier.
AMP2
: Amplifies the receiving signal in the high gain RF amplifier.
OFF
:
Bypass the RF amplifier.
The selected receiver RF amplifier indicates at the IPO column of the Receiver
Configuration Indicator on the display.
ATT
Even with the IPO function on, extremely strong local signals or high noise can still
degrade reception. In such situations, you can use the [ATT] button to insert 6, 12, or
18-dB of RF attenuation in front of the RF amplifier.
Press the [ATT] button several times to set the desired attenuation level, per the
chart below.
OFF:
Attenuator is Off
-
6 dB: The incoming signal power is reduced by 6 dB
(Signal voltage reduced by 1/2)
-
12 dB: The incoming signal power is reduced by 12 dB
(Signal voltage reduced by 1/4)
-
18 dB: The incoming signal power is reduced by 18 dB
(Signal voltage reduced by 1/8)
The selected attenuation level indicates at the ATT column of the Receiver
Configuration Indicator on the display.
To restore full signal strength through the Attenuator circuit area, press the [ATT]
button to the “OFF” position.
Advice:
The Attenuator effects to both the Main (VFO-A) and Sub (VFO-B) bands.
