Chris,
For data modes with the K2, there is an indication in the K2 itself that
should prevent splattering. That is the ALC meter.
Turn the RF/ALC meter to read ALC, then adjust your audio level until
you see the LED display blinking the 10th bar of the LED indicator -
then back off the gain a bit until that 10th LED flickering goes away.
At that point, your audio level is correct.
Now adjust the power knob to your desired power output level and operate.
I do suggest that you set up the RTTY filter set and use those filters
for data modes because the SSBC menu item is independent of the SSB
setting. Set SSBCr to 1:1 (the SSBC parameter for SSB can be set to
anything desired for voice). That will assure that you have compression
turned off for data modes.
73,
Don W3FPR
On 4/14/2013 12:25 PM, Chris Kimball wrote:
I operate digital modes with the K2/KPA with a SignalLink computer interface.
The SignalLink drives the microphone input to the K2. The K2 has
compression turned off (1:1) and a mike gain of 3. The SignalLink computer
interface is at 100% gains on both sides and the SignalLink has the default
internal gain jumpers.
I get occasional comments that I'm splattering, a very serious concern.
Unfortunately I lack instrumentation to study the problem.
How should I set the audio (SignalLink) drive gain and the RF (K2 Power)
drive? My normal operation is not smoke-producing, so this is not a
duty-cycle question.
Thanks,
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