Download Print this page

Racal Instruments RA6790/GM Instruction Manual page 53

Hide thumbs Also See for RA6790/GM:

Advertisement

Located in the upper left comer of the Mode/Meter LCD, the meter display indicates audio
level in dBm (when AF selected), and RF in
f.I.
V (when RF selected). The scale is selected
through the METER RF / AF pushbutton switch.
b. BWkHz
Located in the upper right comer of the Mode/Meter LCD, the BW kHz display indicates
the IF bandwidth selected through depressing BWI to BW5 pushbuttons switches.
c. AGC
MAN
SHORT
MEDIUM
LONG
Locited in the lower left comer of the Mode/Meter LCD, the word AGe is always present.
The word MAN will be present when the Receiver is being operated in the manual gain
control mode. Under the word AGe, the words SHORT, MEDIUM or LONG when displayed
indicate the type of automatic gain control being used by the Receiver. If both the words
MAN and either SHORT, MEDIUM or LONG are present under the word AGC in the
display, the Receiver is being operated in an automatic gain control mode with a manually
set threshold.
d. MODE
A.l\1
CW
USB
LSB
I-USB
I-LSB
FYI
AUX
Located in the middle of the Mode/Meter LCD, the word MODE is always present. The
words AM. CW, USB, LSB, I-USB, I-LSB and FM indicate the detection mode of the
Receiver. The word AUX is an operator initiated forced bandwidth set-up which is dis-
cussed in greater detail in Section V, Maintenance, of this instruction manual.
NOTE
The I-USB and I-LSB functions can only be activated if the
ISB option (AS) is installed.
e. TUNING
FAST
SLOW
LOCK
BFO
REMOTE
Located in the lower right comer of the Mode/Meter LCD, the word TUNING is always
present. The words FAST and SLOW, when displayed, indicate the rate of frequency
change per revolution of the manual tuning knob (refer to Paragraph 3.2.8). The word
3-5

Advertisement

loading