18
SKY-SDR USER MANUAL Ver. 1.3.1 - 28-MAR-2017
emphasis).
RECOMMENDED:
Low=10, MED=6 and HIGH=6.
SPEECH COMPRESSOR:
The level of
compression is set in the Software
Menu item #23
(Compress TX).
The range is from 1 (minimum) to 100
(maximum compression). Setting it to
1 effectively turns it off.
In most
cases, a level of 40 to 50 is
required for the factory hand-mic.
REVERBERATER:
The radio also has
a built in reverberator that enables
enhancing the transmitted audio
slightly. CARE MUST BE TAKEN when
using this feature. A very small
amount of reverberation can enhance
the signal but too much makes it
difficult to copy.
Default is “DISABLE”. Rotate the VFO
clockwise to enable and select delay
times: (40ms, 80ms, and 160ms).
Press RIT to toggle to Depth, Level, and
back to delay times. Depth and Level
may be adjusted from 1 to 7.
Before using this feature on the air, you
should
experiment
with
the
adjustments while transmitting into a
dummy load and having a friend listen
to your signal on a nearby receiver.
TRANSMIT GAIN
Mic-Gain
is fixed and optimized for the
hand Mic. Adjust compressor for best
audio level. (set about 50)
DIGI MODE GAIN
is adjusted in the
Menu item #20
(Gain TX DIG).
TX MONITOR:
You may monitor your
own TX audio in headphones while
adjusting the audio settings. This is
enabled in the Software
Menu item 19
(SSB TX MUTE).
“Enable” mutes
(turns off) this feature. “Disable” turns
it on.
MODE-SPECIFIC OPERATION
SINGLE SIDEBAND OPERATION
For information on adjusting Mic Gain,
Audio Equalizer, Speech Processor,
Reverberator, and TX Monitor, see
OPERATION TRANSMIT
–
GENERAL
ADJUSTMENTS on pages 16 and 17.
VOX-GAIN:
The level of VOX gain is
adjusted in the
Software Menu item
#21 (Voice VOX Level).
Here you
can adjust the sensitivity at which the
VOX switches to TX Mode. The range
is from 10 (most sensitive) to 100
(least sensitive).
VOX-DELAY:
The VOX delay or “hang
time” is adjusted in the
Software
Menu item #22
(Voice VOX).
BANDSCOPE:
The TX Bandscope
works independently of the RX
Bandscope turning on the RX scope
does not automatically turn the TX
Bandscope. Enable TX Bandscope by
depressing the PTT button on the MIC,
then press
[F]
and then
[VFO/PAN
].
The Bandscope display remains empty
until you speak into the mic.
Adjust Pan Level in
Software Menu
item #27
.
CW OPERATION
CW MODES
There are two modes of CW operation,
Normal (CW)
and
Reverse (CWR).
There is no agreed standard on which
mode to use. In some cases where
