Can't help you with the specific problem as I use a RigBlaster instead
of the SignaLink. But a means to monitor your signal quality is pretty
basic and the solution is simple.
I have both the PSKMeter (~$45 kit) and the KK7UQ IMD Meter (~$150
assembled). Both do a great job. Both can be "online" at all times to
monitor PSK31 and PSK63. I find that IMD levels change using the K2
depending on band to some extent and things get bumped, so I don't like
to just set-and-forget. Both meters agree fairly closely when I've used
them simultaneously.
The PSKMeter requires inserting a BNC T-connector at the output of the
K2. This is used to couple a sample of the outgoing rf signal to the
meter. The meter connects to a serial port on your computer for display
of results.
http://www.ssiserver.com/info/pskmeter/
The IMD Meter is self sufficient. No connections to the rig or computer;
a small antenna picks up your transmitted signal. Results read out on a
small LED display. It doubles as a field strength meter. With no
connections, it's always ready for whichever rig I fire up (K2, PSK-20,
Softrock Xcvr)
http://kk7uq.com/html/imdmeter.html
There are probably other easy ways available, but I think it should be
basic equipment in a PSK shack.
Eric
KE6US
On 4/14/2013 9:25 AM, 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,
Chris
NQ8Z
--
View this message in context:
http://elecraft.365791.n2.nabble.com/K2-SignalLink-Setting-gains-for-digital-modes-tp7572576.html
Sent from the Elecraft mailing list archive at Nabble.com.
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