If you are a member of the ARRL, there was a shootout of sorts on switching
supplies just a few months ago. All will have a little noise, but a lot of the
models in the article had a pot to adjust/move the noise if it interfered with
one of the radios you are using.
I use Ten-Tecs switcher supplies, but they are usually an OEM device with their
name on them. Astron and Chinese manufacturers. None that I own have the
ability to move the noise a we bit. However, they work fine for me.
Eric
W9WLW
Sent from my Verizon Wireless 4G LTE DROID
denton sprague <denton@oregontrail.net> wrote:
>I am upgrading a bit here…
>got a new full sine wave ups coming with two aux battery packs to replace my
>old cyberpower 3000 ups.
>Ups has AH rating of 336 and each aux battery pack is 864 AH….
>I am also looking at replacing my Astron 35m power supplies with more
>efficient switching power supplies or running my TT Eagle or my Omni 7 and
>various sundries that use 12 vdc with a battery pack, charger and a battery
>booster when needed.
>So my question is…what switching power supplies are my fellow hams using and
>how well do you like them?
>I am aiming for efficiency, rf quietness and flexibility.
>Other than the station, the ups will be used to fire a smaller flat screen tv,
>satellite receiver, iMax and a lamp….nothing total over 500 watts draw…at
>least to my calculations.
>
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