Re: 12v supply to masthead

John Worsnop

I run my EME system off 28V fed by 4×7m lengths of 8mm stranded car audio cable taking around 27 Amps from a Psu indoors. No sense wires. For the bands with 12V PAs I have a further 28-12V 40A meanwell switcher at the dish with a metre or so to the focus box. Works well.

73 John

On Wed, 12 Feb 2020, 09:46 ian hope (2E0IJH), <ian@...> wrote:
Funny this, Ian SEK had similar thoughts, we were talking about the other day
Sent: Wednesday, February 12, 2020 at 9:16 AM
From: "Neil Smith G4DBN" <neil@...>
Subject: Re: [UKMicrowaves] 12v supply to masthead
I have a remote Meanwell SMPS which runs on a +-55VAC feed from a big
yellow site transformer. Feels a bit safer than running 240 up the
mast.  The unit is rated for 90-264 VAC in and seems to behave fine with
the 105V or so it gets via the feed cable.

Neil G4DBN

On 12/02/2020 09:02, Jon Eyre wrote:
> Can't you just mast mount the 13.5v supply. I have both my 13 and 24v
> power supplies mast mounted and they have been there for a couple of
> years with no problem, I just leave them switched on to eliminate
> condensation.
> Jon G7TZZ


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