PSU Switch Mode or Linear

Author Post

Mark, CT1FJC

Thu Feb 10 2011, 02:13PM
I need to replace my Manson EP PSU 13.8v 20/25A.
Would purchase another Manson but they do not have over-voltage protection.
Can anyone recommend a currently available Switch Mode PSU that does not cause RFI on 6, 4, & 2 metres.
My antenna is only 9 metres above my Transceiver, hence my concern.
Thanks 73 Mark CT1FJC
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Ian, G5WQ
Fri Feb 11 2011, 10:17AM
Ian, G5WQ
Registered Member #81
Joined: Sun Mar 23 2008, 07:57PM

Posts: 29
hi mark . i use a maas 60amp switch mode psu which seems ok for me on 6m 4m 2m and eme useage.
they make 30 amp versions .

i also have a waters and stanton 25 amp switch mode supply of the small physical sized type with the noise offset feature but i find this makes noise on 28mhz when the psu is near to the tcvr .

the SEC1223 type i also use and that seems very quiet as far as noise goes .

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Mark, CT1FJC
Tue Feb 22 2011, 02:00PM
Mark, CT1FJC
Registered Member #287
Joined: Sat Apr 19 2008, 12:14PM

Posts: 15
Many thanks for the info Ian, much appreciated. 73 Mark CT1FJC
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