Don,
Nice try and I have seen the issue in SSB as you describe. However my
issue has to do with the initial carrier level in AM (amplitude
modulation) mode which occurs with the audio properly adjusted.
73 Jack KZ5A
On 1/13/2014 9:06 AM, Don Wilhelm wrote:
Jack,
Are you driving the K3 with enough audio? You should have the audio
input level set high enough to produce 5 to 7 bars indication on the
ALC meter.
If you do not drive the audio sufficiently, the behavior will be
exactly as you have said.
We usually encounter this situation in digital modes, but it is just
as applicable to voice modes.
Yes, the Elecraft K2, K3 and KX3 are unique in how the power output is
controlled - some commercial gear does it similarly, but AFAIK no
other amateur transceivers do it that way. The output power is
measured and compared to the requested power level, then the drive is
adjusted in an attempt to match the requested power. If the audio
drive is low, it will take some time to come up to full power. The
answer is to drive the audio to the level indicated in the manual - 5
to 7 ALC bars for voice modes, 4 bars with the 5th bar flickering for
digital modes. Note that the K3 "ALC" meter is both an audio level
and an ALC indicator. Internal ALC does not begin until the 5th bar
is illuminated.
73,
Don W3FPR
On 1/13/2014 9:39 AM, Jack Brabham wrote:
I have the same problem with my K3 on AM and SSB.
Particularly on the initial transmission the power ramps up slowly,
like over 5 to 10 seconds. I went round and round with Elecraft
about this problem when the rig was new (#4175), sent it back to them
twice, and never got anything resembling an admission that the
problem exists.
It is not consistent, sometimes it works as it should, and sometimes
it has the problem to varying degrees.
.
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
