[hpsdr] Power Supply for Multiple Mercury receivers

[Jeff Kelly]

Looks better than mine!

www.qrz.com/db/k2sdr

Jeff
K2SDR

From: Rick ve3mm 
Sent: Sunday, November 06, 2011 12:00 PM
To: Mike Pate 
Cc: hpsdr at lists.openhpsdr.org 
Subject: Re: [hpsdr] Power Supply for Multiple Mercury receivers

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Hi Mike 

Thanks for giving me a reason to take some pictures of my present HPSDR setup for reminiscing in the future.  I have uploaded a bunch to my account (ve3mm) at hamsdr.com: 

http://hamsdr.com/profile1.aspx?id=44

Let me know what you think.

73

Rick ve3mm


On Sun, Nov 6, 2011 at 10:31 AM, Mike Pate <MPate at athirdopinion.com> wrote:

  Rick,

  I read your post about using the PicoPSU for your HPSDR... I was looking for a replacement for my existing LPU.  Any chance I could get a pic or two of your PicoPSU installed in the Pandora and how you setup the powerpoles?

  73's
  Mike / K5MAP

  ________________________________________
  From: hpsdr-bounces at lists.openhpsdr.org [hpsdr-bounces at lists.openhpsdr.org] On Behalf Of Rick ve3mm [richardstasiak at gmail.com]

  Sent: Sunday, November 06, 2011 8:31 AM
  To: Jeff Kelly
  Cc: hpsdr at lists.openhpsdr.org
  Subject: Re: [hpsdr] Power Supply for Multiple Mercury receivers


  Hi Jeff

  I went through this a few weeks ago and several list members suggested the picoPSU-120-WI-25 120W wide input (12-25V) power supply.  I picked up a couple of them from ITXCanada.com.  They are also available from a couple of distributers in the US.

  They are a great power supply for my HPSDR needs.  I am not using a fan any longer in my Pandora setup (with Pennywhistle) with this power supply.  Nice to have a complete quiet in the shack.  This may not work for you if your shack is not on the cool side like mine is here in Canada.

  The picoPSU units are switcher based designs that plug right in to the 20 pin socket on Atlas. I haven't found any birdies that cause me any concern.  I cut off the incoming power connector and added a power pole connector assembly to provide power to the picoPSU and Pennywhistle.

  I had tried adding a pass transistor to the LPU to increase the 5 volt output, but found I was dealing with a lot of heat dissipation issues that were not easy to deal with, so I abandoned that effort.

  73

  Rick ve3mm



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