I just stuck a piece of folded-up bubble wrap underneath the Pixel
control box which made it much quieter!
On 1 Feb 2015 13:20, Mike K2MK wrote:
Hi Jim,
My Pixel loop is about 15 feet away from my BigIR vertical. I run 1500 watts
QSK and have not had any problem at all. In fact since the recent
improvements to the K3 QSK it's become a pretty pleasant way of operating.
As Vic stated, there is a mechanical relay in the Pixel power box that
resides inside the shack which could be distracting. However, the clicking
from my amp's relay is much louder. So headphones are pretty much mandatory
at my QTH. I should note that this amp is new and I've only been running QSK
for about 5 months.
If you are noise sensitive and if you are running a silent amp like the
KPA500 you'll probably be dissapointed in the sudden appearance of noise
from the Pixel power box. I don't know how the Wellbrook does its switching.
Perhaps the bigger question is how many cycles does this little relay go
through in a typical weekend DX contest and how long will it last. Is it
10,000 cycles? Is it a million cycles? I always switch the Pixel off on the
higher frequency bands for the sole purpose of extending the life of the
relay.
73,
Mike K2MK
James Bennett wrote
Hi all,
Have a K3/P3/KPA500/KAT500 and have been working 160 meters more the past
year or so than in the previous 49 years. Only need three more states for
WAS. Got a lot of noise here at this QTH, and have limited antenna space.
Using an Inverted L up about 40 feet with a K2AV FCP under it.
I'm looking at perhaps getting a magnetic loop receiving antenna, and have
looked at the Wellbrook ALA 1530 and the Pixel RF Pro 1B.
But my question is on the T/R switching of the K3. As I operate 99% CW, I
depend on QSK operation. If I connect either of those receive only antenna
to the RX Ant, does the K3 switch between Ant1 and the RX Ant fast enough
to protect the K3?
Thanks, Jim
Jim Bennett / W6JHB
Folsom, CA
--
73,
Vic, 4X6GP/K2VCO
Rehovot, Israel
http://www.qsl.net/k2vco/
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