17
SKY-SDR USER MANUAL Ver. 1.3.1 - 28-MAR-2017
on the bar-graph display, or
numerically in uVolts. The S-Meter
mode is set in the
MENU Item
#11
. Note: with Pre-
Amp “Off”, the
S meter will read about 3 S-Units
lower than the actual signal
strength.
AUDIO OPTIONS
AUDIO EQUALIZER:
The received
audio may be adjusted in three
frequency ranges: Low/Medium/High.
It is adjusted in the Software
Menu
item #26
(EQ RX).
Once #26 has
been selected, you may step through
the three ranges by pressing the
[RIT]
button. The level is adjusted using the
VFO knob. The range is 1 to 10 with 1
deemphasizing the range (minimum)
and 10 emphasizing the range
(maximum). Adjust to suit your own
preference.
SQUELCH-FM:
The squelch level for
FM is adjusted in the Software
Menu
item #17
. The range is 0 to 100.
When set to 0, the squelch is off. Adjust
to suit your own preference.
SQUELCH-SSB/CW:
The squelch
level for SSB and CW is adjusted in the
Software
Menu item #18
. The range
is 0 to 100. When set to 0, the squelch
is off. Adjust to suit your own
preference.
RECEIVER BANDSCOPE:
is useful for
spotting clear frequencies on a very
crowded band, or locating signals on a
quiet band. It is switched ON or OFF by
pressing
[F],
then the
[VFO/PAN]
button. The Pan Level is adjusted in
the Software
Menu item #27
.
TRANSMIT OPERATION
GENERAL ADJUSTMENTS
TRANSMIT DISPLAY MODE:
The
SKY-SDR can monitor Output Power or
SWR. The mode is selected in the
Software
Menu item #13
(Show TX).
TRANSMIT DISPLAY METHOD:
The
SKY-SDR can display the output power
or SWR on a Bar Graph or as a
numerical value. The display method
is selected in the Software
Menu item
#12 (TX Meter).
TRANSMIT POWER:
The output
power of the transmitter is adjusted in
Item #14
(Power TX)
of the
Software Menu. The range is 10
(approx. 1W) to 100 (approx. 6W).
FOLDBACK PROTECTION:
when the
SWR is high, the power is reduced to
protect the final amplifier transistors.
Above an SWR of 2:1 it reduces the
output power to 3 Watts. By 10:1 SWR
it is reduced to just 1 Watt.
TX AUDIO ADJUSTMENTS:
TX AUDIO EQUALIZER:
The TX audio
may be tailored with the help of a built
in 3-band equalizer: Low, Medium, and
High frequencies. It is adjusted under
the Software
Menu item #25
(EQ
TX).
The bands are selected by
pressing the RIT button and the level
for each range is adjusted with the VFO
knob. The range is from 1
(deemphasize) to 10 (maximum
