[hpsdr] How do you switch power to Atlas

[n3evl]

Mark,

The PicoPSU comes with the coaxial power connector with an inline 
plug/socket.  From there the two wires (White +V, black ground) go to 
two soldered connections to the side of the PicoPSU unit.  It may be 
possible to disconnect the two wires at the unit and replace with 
something of your choosing.  In my case, I changed things at the other 
end and snipped off the coaxial power connector.  I don't think it's 
practical to use larger gauge wire to feed the PicoPSU--there are no 
solder tabs as such.  My assumption is that the supplied wire gauge is 
sufficient for the current drawn by the unit in normal use.

On the front (back?) of Pandora I drilled holes for a pair of binding 
posts.  These are now mounted in Pandora and feed the PicoPSU.  Today 
I'll also connect the two wires to supply power to Penywhistle and also 
will power the fan mounted in Pandora.  The binding posts I used are 
rated for 30 amps (DigiKey items) in the event I replace Pennywhistle 
with a higher power PA such as Munin later.  In order to mount them I 
had to drill to 1/2" holes.  The alternative was to create a larger 
rectangular opening to suit the Powerpole receptacle I saw advertised.

I'll take some pics and send later, if you like.

73, Pete, N3EVL


On 12/3/2011 11:06 PM, Mark Leone wrote:
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>
>
> On 12/3/11 7:22 PM, n3evl wrote:
>> Mark,
>>
>> Since I'm driving my PicoPSU from a conventional 13.8V supply, I got 
>> the PicoPSU-WI-25 wide input variant that will accept input voltages 
>> in the range 12 - 25V.
>>
>> Pete, N3EVL
>
> Pete,
>
> I have the same setup, so I'll get the WI version as well. I'll be 
> replacing the coaxial power cable that comes with the PicoPSU with 
> power pole wires going to a chassis-mounted power pole assembly. I 
> can't see from the pictures on-line exactly how the coaxial power 
> cable connects to the PicoPSU. Are the wires just soldered into the 
> PCB, or are there tabs to connect to? If the former, do you have an 
> idea what gauge wire the PCB will take? If the former, can you 
> describe the tabs? Thanks.
>
> Mark - K4XML
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