[arm-allstar] 13 V to 5V PI pwr supply

[James R. Pilgram]

Tonight I was setting up a Raspberry Pi2 with a simplex CDM750 and 
converted usb fob getting all kinds of screwy problems. The Fob was 
going in and out and failing.

In my case, I was using a Astron SS-25 switching power supply to power 
the radio and one of the 12 to 5 volt switching modules to power the Pi. 
The radio was going crazy, the fob was going crazy, the Pi was going 
crazy and the supply crow-barred. I grabbed another supply, A Samlex 
SEC1223 switching supply and got the same issues. We were having a 
similar issue with another node on Maui only he was using a DMK-URI and 
a switching supply Powering a 12 to 5 volt module and a simplex radio 
from the same supply.

Turns out the guy on Maui solved the problem with a different power 
supply for the Pi not hooked to the switching supply running his radio. 
I'll be trying again tomorrow with a linear supply. I never had a 
problem with a linear supply or a nice big battery bank.

Jim NH6HI

On 10/10/15 03:47, REDBUTTON_CTRL wrote:
> Well, how are you running them on a 12v battery or 13.8 power supply 
> with battery back up?
> Are they at home or at repeater site?
> Jon VA3RQ
>
> On 10/9/2015 1:13 AM, Eric Harrison wrote:
>> Well not much more I can say. They are made in China and are cheap 
>> and like all electronics are subject to failure's!
>>
>> Eric
>>
>> N7JYS
>>
>> Sent from Yahoo Mail on Android 
>> <https://overview.mail.yahoo.com/mobile/?.src=Android>
>>
>> ------------------------------------------------------------------------
>> *From*:"David McGough" <kb4fxc at inttek.net>
>> *Date*:Thu, Oct 8, 2015 at 11:35 PM
>> *Subject*:Re: [arm-allstar] 13 V to 5V PI pwr supply
>>
>>
>> Hi Eric,
>>
>> Interesting that you're having failures. I'd like to hear more about the
>> failed systems?
>>
>> I've been running -many- (more than a dozen at this point) supplies of
>> this style, on many projects, with no failures.
>>
>> 73, David KB4FXC
>>
>>
>> On Thu, 8 Oct 2015, Eric Harrison wrote:
>>
>> > Just FYI I have been using this same DC to DC converter on several 
>> up my pi's and already had 2 of them fail after a few months of use.
>>
>>
>> Eric
>>
>> N7JYS
>>
>> Sent from Yahoo Mail on Android
>>
>> From:"jim.pilgram at gmail.com <javascript:return>" 
>> <jim.pilgram at gmail.com <javascript:return>>
>> Date:Thu, Oct 8, 2015 at 7:25 PM
>> Subject:Re: [arm-allstar] 13 V to 5V PI pwr supply
>>
>> I have been using these on our system since Doug put the RP2 build 
>> out and have not had any problems with the over 1 dozen units out 
>> there. Love them and the price.
>>
>>
>> Sent from my BlackBerry 10 smartphone on the Verizon Wireless 4G LTE network.
>>
>> From: Jacques St-Pierre
>>
>> Sent: Thursday, October 8, 2015 14:12
>>
>> To: arm-allstar at hamvoip.org <javascript:return>
>>
>> Reply To: ARM Allstar
>>
>> Subject: [arm-allstar] 13 V to 5V PI pwr supply
>>
>>
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