I have used an Expert 1.3K amp for several years with my
upgraded K3. The short form is it works well. I got it when my
wife won a $1000 off certificate. I knew this amp was a popular
choice of many DXpeditions, and so worked well with the K3s they
used and was reasonably reliable. When I got my amp, I also
ordered a custom cable for the K3 which was delivered in the
same shipment as the amp.
I am careful to not depend on the ALC to control exciter power,
but instead set the output power on the K3 to the right level to
get the output power I want from the amp. I believe this
procedure will result in a cleaner signal.
I am thinking about replacing it with an Elecraft amp for two reasons:
Full break in CW produces a lot of relay clicking. The
Elecraft amps use
PIN diodes.
The level of integration between the exciter (K3) and the amp
is much
better. I can have my K3 operate at 100W when the amp is
offline and at
whatever drives the amp to the right power level when the amp
is online
with automatic switching.
Cheers - Bill, AE6jV
On 10/4/21 at 9:06 AM, mikek...@gmail.com (Mike March) wrote:
Considering pairing an Expert 1.3 amp with my K3.
Any experience with this amp? Cabling issues, band tracking, etc.?
Thanks in advance.
Mike K4QU
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