Walter Drake SW8 - Manual (Page 13)

ATT
7 ATT - Press to turn on the built-in 20 dB attenua-
tor to reduce the received signal strength in the AM
broadcast and Shortwave bands as required. The
attenuator is not active in the FM and Aircraft bands.
Successive depressions of the button toggles the
attenuator on and off. The secondary function of this
button is the digit ‘7’.
AGC
8 AGC - Press to select either the Slow or Fast
AGC setting for the AM broadcast, Shortwave and
Aircraft bands. The AGC is not selectable in the FM
mode. The secondary function of this button is the digit
‘8’.
LAMP
9 LAMP - Press to turn the display backlighting on
or off. With internal battery operation, the backlighting
automatically turns off after a short delay following a
function change or retuning of the receiver to prolong
battery life. Also, the receiver senses Battery or AC
operation, and allows the lamp to remain lit if on AC.
The secondary function of this button is the digit `9'.
DEL
0 DEL - Press and hold for three seconds to delete
a selected memory channel. Audible beep indicates that
the selected memory channel has been deleted. The
secondary function of this button is the digit ‘0’.
SKIP
SKIP - In the memory mode, press to skip the
current memory channel for a Scan operation. An ‘S’
will be displayed to the right of the selected memory
channel number. When an ‘S’ is displayed next to a
selected memory channel number, press this button to
restore the memory channel for scan operation. The
secondary function of this button is the decimal point
(‘.’) which is used when entering a frequency.
CLEAR
BEEP
CLEAR/BEEP - The ‘beep’ tone is provided to
indicate that entries have been accepted or to notify of
error. Press this button to enable or disable the 'beep'.
Pressing the
F
button first, clears an incorrectly
entered frequency or other value.
SCAN
MEM
SCAN/MEM - To recall a memory channel at any
time, press the ‘MEM’ button and within three seconds
of the button depression, enter a two-digit number
between ‘00’ and ‘69’. With ‘MEM’ displayed, other
adjacent memory channels can be recalled by use of the
/ buttons. The Tuning wheel may be used to tune
from the recalled frequency of the selected memory
channel. Please note that digit entries are interpreted as
frequency entries if the ‘MEM’ channel number is not
flashing. Pressing the
F
button first, starts scanning
of the current block of 10 channels. The receiver will
stop at each programmed channel for 5 seconds, then
increment to the next memory channel. Channels
programmed for 'SKIP' will not be scanned.
Press this button to stop the scan operation.
Front Panel Description, continued 7
STORE
VFO
STORE/VFO - Press to place receiver in the normal
variable frequency tuning mode (VFO). Select desired
frequency, mode, attenuator, Synchronous detector, AGC,
bandwidth, etc. Pressing the
F
button first, followed
by depression of the
STORE
VFO
button, switches the keypad to
the numeric mode. The ‘MEM’ symbol will flash in the
display. Enter a two digit number between '00' and '69'
for the desired memory channel. An audible beep will
indicate that the memory channel has been stored with the
newly entered settings.
TIMER
CLOCK
TIMER/CLOCK - Pressing this button once will
display the current time of the current clock. After three
seconds, the display will revert to the current frequency.
Pressing and releasing this button while the time is
displayed will toggle the time display between the two
clocks (local or alternate). The timer will operate accord-
ing to the last displayed clock time. See the 'SETTING
THE 24 HOUR CLOCKS' section of this manual. Pressing
the
F
button first, followed by the TIMER button, will
activate the timer mode. If the Timer has been activated,
the ‘TIMER’ symbol will be displayed even after the
receiver is turned off. Receiver will automatically turn on
and off as programmed. See the “SETTING TIMER ON/
OFF TIMES” section of this manual.
4) VOLUME/POWER - Push in on this control to turn the
receiver On or Off. With receiver power on, adjust this
control clockwise to increase the audio level from the
receiver’s speaker. Be certain to leave the volume setting
at the desired level for TIMER use. The POWER switch
may be disabled by the rear panel 'MASTER POWER'
switch. See the 'Rear Panel Description' section of this
manual.
5) TONE - This control is used to modify the tonal quality
of the audio. Counterclockwise rotation increases the bass
response. Flat response occurs at the 12 O’Clock setting.
Clockwise rotation increases the treble response.
6) SPEAKER - This is the opening for the internal speaker
of the SW8.
7) HEADPHONE JACK - This connector accepts a 1/8"
stereo/mono headphone connector. Stereo reception is
possible only in the FM mode. All speaker outputs are
automatically switched off when using the headphones.
8) WHIP ANTENNA - The receiver has a built-in tele-
scoping antenna that can be used on all bands. Note that
the pivot point section of the antenna must be exposed
out of its nesting tube to permit vertical extension of the
antenna. Extend the telescoping sections and position the
antenna for best signal reception. Be sure the correspond-
ing rear panel antenna select switch is set to the 'WHIP'
position for WHIP antenna reception.