I notice some versions of switching supplies (probably for Eu consumption)
have an additional clamp-on ferrite on the output cable. Some supplies only
have terminal posts, but it is a good idea to put a clamp-on ferrite on the
cable right up to the terminal posts, ideally it should be in a metal box
attached to the psu, but I haven't done that.
My Simlex is ok on the HF bands where I coax feed the antennas, but with
the LF antenna wire coming right into the shack to the matching unit, I
think noise gets in thro that route.
David
G3UNA
----- Original Message -----
From: "Tim Logan" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Saturday, January 06, 2007 10:33 PM
Subject: [Elecraft] K2's and switching PS - got my answer
Thanks Frank and others - as luck has it the switching supply I have is
the 1223 Frank mentioned - all who responded have not had any problems -
thanks again everyone.
73/Tim
W6NEK wrote:
Hi Tim,
I use the Simplex America Model SEC 1223 on all the K2/K2100's I build
with no problems at all. Handles max current no problem and I have
yet to hear any hash generated by the supply in the K2 receiver.
Cheap, light weight and small foot print. It's a very good choice.
Reviews here:
http://www.eham.net/reviews/detail/432
Buy it here for best price:
http://www.universal-radio.com/CATALOG/hamps/3747.html
Good luck,
Frank - W6NEK
----- Original Message ----- From: "Tim Logan" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Saturday, January 06, 2007 1:14 PM
Subject: [Elecraft] K2's and switching power supplies
Hi folks -
I would like to know what experiences anyone has had using switching
power supplies within close proximity of a K2 or K2-100. I'm
considering building a fifth K2 (keep selling the dang things to
people that don't build) and am toying with the idea of making up a
portable module that would include a switching power supply. Thanks
in advance. 73/Tim NZ7C
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