Yaesu FTdx5000MP, Руководство по эксплуатации

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Page 68 FT
DX
5000 O
PERATING
M
ANUAL
T
OOLS FOR
C
OMFORTABLE AND
E
FFECTIVE
R
ECEPTION
AGC
(
A
UTOMATIC
G
AIN
C
ONTROL
)
SLOPED AGC Operation
In traditional AGC systems, the audio output from the transceiver becomes essentially constant, once the threshold
for AGC action is reached (usually several dozen dB above the no-signal
noise floor). The
FT
DX
5000 , however, includes an innovative Sloped AGC
system on the VFO-A receiver that allows the audio volume to rise and fall
slightly according to signal strength. Although the rise/fall slope is not dra-
matic, it is sufficient to allow you to use your ear to discern and separate
signals according to signal strength, not just audio frequency.
NORMAL
Input Signal
A
u
d
io
O
u
tp
u
t
SLOPED
Using Sloped AGC
1. Press the [
MENU
] button briefly to enter the Menu
mode.
2. Use the (
VFO-A
)[
SELECT
] knob to select Menu
item “ 107 ROUT AGC SLP ”.
3. Rotate the ( VFO-B
)[
SELECT
] knob to change the
setting to “
SLOPE
”.
4. Press and hold in the [
MENU
] button for two sec-
onds to save the new setting and exit to normal op-
eration. You will now be using the Sloped AGC
system.
(VFO-B)[SELECT] Knob [MENU] Button
(VFO-A)[SELECT] Knob