DRAKE R8A - Page 11

9 Front Panel Description
‘SCAN
ust TE 1 BBB
A-B CARR
VFO (A) =(B), (PRE) (ATTN) AGC(B) [F)
| ante 1)(2)VHE) | (NOTCH)
NB (NW)
(NAME)
MHz ‘®8W) (MODE)
AUTO AM SYNC
kHz $0 as ise Use
12 ON OFF
TIMER
| ster
PASSBAND
on — SQUELCH VOL—@)-—AF
FIGURE 4 FRONT PANEL
1) SIGNAL - This meter indicates the relative signal level in
S-units and dB above S9.
2) Display - The backlit, liquid crystal display provides the
current status of the receiver such as frequency, mode,
bandwidth, etc. Refer to FRONT PANEL DISPLAY page 11
for full description.
3) Function Buttons - These (6) buttons control the various
functions of the receiver which are indicated on the
display directly above each button.
4) MODE/BANDWIDTH Buttons - The operating mode and
bandwidth are directly entered with these front panel
buttons. Press the AUTO button to permit automatic
setting of bandwidth as mode is selected. Press the AM/
SYNC button to enable the synchronous detector in AM
mode.
5) POWER - This button turns the receiver on or off. When
unit is off, the clock will be displayed.
6) VOLUME - This control adjusts the receiver's audio
speaker level. Turn clockwise to increase level or counter-
clockwise to decrease level.
7) RF - This control adjusts the gain of the receiver and is
normally left in the fully clockwise position for maximum
gain.
8) PASSBAND OFFSET - This control alters the position of the
receiver's IF passband without disturbing the main tuning.
Normally, this control should be set at the “O” or 12 0’clock
position. This control is not active in FM mode.
9) SQUELCH - This control sets the signal level at which the
audio is muted. For normal operation, this control is set
fully counterclockwise.
10) TUNING (VFO) - The tuning wheel and the a and
|_| buttons are the primary tuning controls of the re-
ceiver. Clockwise rotation of the tuning wheel increases
frequency and counterclockwise rotation decreases fre-
quency. The tuning wheel also incorporates variable
speed tuning. The faster the tuning wheel is rotated, the
faster the tuning speed.
TUNING WHEEL STEPS
The receiver can be programmed to tune in three
different resolutions (steps) with the corresponding
display readout. The three choices are as follows:
A) 1 kHz display readout (tuning in 1 kHz steps).
Used for fairly rapid frequency search.
B) 100 Hz display readout (tuning in 100 Hz steps).
Used for tuning AM and FM signals.
C) 10 Hz display readout (tuning in 10 Hz steps).
Used for tuning SSB, CW, or data signals.