[Elecraft] Elecraft Mac People: KUSB Issue

Walter Underwood wunder at wunderwood.org
Tue Sep 8 10:20:41 EDT 2015


I generally have “Never” set for going to sleep on my work MacBook. I log onto other servers and run scripts that might take an hour or so. The Mac really is doing nothing during that time, but it needs to stay awake to keep the connection up.

wunder
K6WRU
CM87wj
http://observer.wunderwood.org/ (my blog)

On Sep 7, 2015, at 4:05 PM, Joel Black <joel.b.black at gmail.com> wrote:

> I have turned off computer sleep on my Late 2012 iMac. It is set to “Never.” I do have my screen set to go to sleep. I have an add-on called Caffeine which, when selecting with my mouse, will allow me to either keep the display on or allow it to go to sleep. It’s my understanding that OS X runs its utilities during the wee morning hours and I don’t want to interfere with that (I could be wrong).
> 
> As for a powered USB-3 hub the HooToo hub works great: http://www.amazon.com/gp/product/B00FR795WA?psc=1&redirect=true&ref_=oh_aui_detailpage_o04_s01 <http://www.amazon.com/gp/product/B00FR795WA?psc=1&redirect=true&ref_=oh_aui_detailpage_o04_s01>
> 
> I do *not* try and run my external sound card through it.
> 
> 73,
> Joel - W4JBB
> 
>> On Sep 7, 2015, at 5:40 PM, David Ahrendts <davidahrendts at me.com> wrote:
>> 
>> Many thanks for the half-dozen direct responses off list. Most of you run a powered USB hub for the KUSB (or several). May I ask what type/brand powered hub are you successfully using with your Mac device for the KUSB or multiple KUSBs?
>> 
>> It appears the chip in the KUSB can be interpreted as a real power hog, and the Mac Mini, MacBook Pro, iMac will protect against unusual drain. It just shuts off the USB port after a little warning. A powered hub would certainly remove that load from the Mac.
>> I will also admit to being one of the million or so Mac beta testers and we’re currently on OS X El Capitan beta Version 10.11 (15A278b). And believe me, there have been/are plentiful Mac sleep-wake issues before they finalize. 
>> 
>> David A., KC0XT, LA
>> 
>> 
>>> On Sep 7, 2015, at 2:39 PM, David Ahrendts <davidahrendts at me.com> wrote:
>>> 
>>> What can ya do to keep your fabulous Mac OS X device (in my case a Mac Mini) from kicking off the KUSB when it goes to sleep? Trying to keep MacLogger connected to the K3S via it’s KUSB for several days at a time (like Labor Day weekend). It appears to get kicked off for inactivity as a power drain which requires (I know, poor me!) re-starting the Mac Mini to re-initialize the USB port with the KUSB. Not a big thing, but maybe there is a way to refresh the USB devices connected (a Mac issue). Anyone?
>>> 
>>> 
>>> David Ahrendts   davidahrendts at me.com <mailto:davidahrendts at me.com>   
>>> 
>>> 
>>> 
>>> 
>> 
>> 
>> 
>> 
>> David Ahrendts   davidahrendts at me.com   
>> 
>> 
>> 
>> 
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