14-06-2021, 04:38 PM
(04-06-2021, 10:07 AM)VK5PJ Wrote: Hi,
A while ago I started using some MANSON 33 amp switchmodes (SPA-8330), which on the whole work very nicely. One thing I had stared to notice was a birdie across all of my receivers when using the WSPR program at around 1400Hz. Long story short, went back to a CODAN linear supply and the birdie went away.
Do any of you have any suggestions on a better option than the MANSON's for the shack 12 volt needs? Had considered the BIG Manson 120A supply but would like opinions, experiences with existing users of it or alternatives.
Hmm, interesting. I run a couple of the Mason SPA-8330 and never seen birdies from it.
One time I had the 60A Manson back in the ADSL days. Every time I turned it on, it generated a spike that reset the ADSL modem ....