FSG 70/FSG 71M
O
PERATION
M
ANUAL
Reprint July 1998
Page
4 - 1
W. Dittel GmbH
Section IV
Operation
4.1
Control Functions
SQ-SWITCH
ON-OFF-SWITCH
FREQUENCY
DISPLAY
MHz-SELECTOR
SWITCH
kHz-SELECTOR
SWITCH
TX-
INDICATOR
VOLUME
SQ-SWITCH
STORE BUTTON
ON-OFF SWITCH
FREQUENCY
DISPLAY
CHANNEL
SWITCH
MHz SELECTOR
SWITCH
kHz SELECTOR
SWITCH
TX
INDICATOR
VOLUME
Fig. 4-1: Controls and readouts
Controls
Readouts
Description
Function
OFF/ON
Toggle switch with two
positions
Lever down:
Power OFF
Lever up (ON):
unit supplied with power
VOL
Potentiometer
To increase the RX-volume rotate the
knob clockwise.
SQ-Switch
Toggle switch with two
positions
Lever down: The squelch circuit is off.
Basic RX-noise is audible.
Lever up (SQ): Common position, the
squelch circuit is activated.
Only reception of signals above SQ-
threshold.
Frequency display
5-digit liquid crystal display,
internal lighted
Shows the operation frequency in digital
form set from 118.00 to 136.97 MHz. Last
digit "5" or "0" does not appear. Blinks if
power supply drops below 11Vdc.
kHz Selector
inner rotary knob with 40
detents
Sets frequency in 25 kHz increments
(.000 - 975)
MHz Selector
Outer rotary knob with 19
detents (stops at 118 and
136 MHz)
Sets frequency in 1 MHz increments
(118. - 136.)
TX Indicator
Yellow LED
Lights during depressing the push-to-talk
switch.
