[ARC5] RBx Power Supply Question

[Scott Robinson]

If you arrange a  5 inch (or similar) fan wafting cooling air through 
the power supply, I'll bet you nearly double its ratings, particularly 
if it uses oil filled filer caps with very high ripple current limits.

/scott robinson



On 12/27/19 12:24 PM, Mark K3MSB wrote:
> Now that I have my RBA receiver up and running it will go on the rack 
> with my RBB and RBC hopefully this weekend after looking into one or two 
> things.   So, I have 3 receivers and 2 power supplies.
> 
> For testing I’m powering the RBA from the same supply as my RBC and 
> things have been working fine.    I noticed last night that the RBC was 
> ON even though it’s ON/OFF switch was OFF.  Nuts, how did that switch 
> get busted?    I then remembered the schematic and realized that since 
> both the jacks on the power supply were in parallel,  turning on one of 
> two connected radios would probably turn on both.    I checked the 
> schematics and that is what’s going on.    It’s also in the manual.
> 
> The manual says one power supply can run two radios in an emergency,  
> but nowhere does it state for how long etc.    I know what the rating is 
> for the power supply,  but I can’t find in any of the manuals what the 
> power consumption is for a single RBx radio to figure out how close to 
> the power supply limit I’m at running two radios.
> 
> So, any idea of how long one can run two radios off of one power supply?
> 
> I could of course just disconnect one power cable, but that’s a bit 
> inconvenient based upon how I have the power supply resting under the 
> radios.
> 
> 73 Mark K3MSB
> 
> 
> 
> 
> 
> 
> 
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