Powered USB hub for multiple KUSB

[Jim Kutsch, KY2D-2]

I'm running out of USB ports and need a USB hub. It will serve the KUSB for
the KX3, KPA500, and KAT500, as well as a SignaLink  and a packet interface.
Do any of you have a recommendation of a good, RF quiet powered hub? Are
there any to avoid? It would be great to be able to power it from the shack
12 VDC supply rather than have yet another power brick. In the absence of
any info, I'm looking at an Anker 7 port powered hub that is powered from a
12 VDC adapter.

 

 

Thanks and 73, Jim, KY2D

 

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[Phil Wheeler-2]

Get a USB3 hub while you're at it.

Why powered? None of mine are. Well, maybe due to
USB3 ports :-)

Phil W7OX

On 6/18/16 3:18 PM, Jim Kutsch, KY2D wrote:

> I'm running out of USB ports and need a USB hub. It will serve the KUSB for
> the KX3, KPA500, and KAT500, as well as a SignaLink  and a packet interface.
> Do any of you have a recommendation of a good, RF quiet powered hub? Are
> there any to avoid? It would be great to be able to power it from the shack
> 12 VDC supply rather than have yet another power brick. In the absence of
> any info, I'm looking at an Anker 7 port powered hub that is powered from a
> 12 VDC adapter.
>
>  
>
>  
>
> Thanks and 73, Jim, KY2D
>
>

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[kstover]

Why powered?

Because motherboard USB ports are limited to 100ma current draw at
computer startup. Then once they reach 93% of rated voltage the limit
goes to 500ma. Maximum power draw for any one port is 2.25 watts. With
an unpowered hub all connected devices share the current/power limit.

Get a powered hub and the seven or eight devices hanging off the hub are
guaranteed not to overload the USB port.


On 6/18/2016 5:30 PM, Phil Wheeler wrote:

> Get a USB3 hub while you're at it.
>
> Why powered? None of mine are. Well, maybe due to USB3 ports :-)
>
> Phil W7OX
>
> On 6/18/16 3:18 PM, Jim Kutsch, KY2D wrote:
>> I'm running out of USB ports and need a USB hub. It will serve the
>> KUSB for
>> the KX3, KPA500, and KAT500, as well as a SignaLink  and a packet
>> interface.
>> Do any of you have a recommendation of a good, RF quiet powered hub? Are
>> there any to avoid? It would be great to be able to power it from the
>> shack
>> 12 VDC supply rather than have yet another power brick. In the
>> absence of
>> any info, I'm looking at an Anker 7 port powered hub that is powered
>> from a
>> 12 VDC adapter.
>>
>>
>>
>> Thanks and 73, Jim, KY2D
>>
>>
>
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[Ramon Tristani-2]

The Amazon “basics” is a ten-USB 3 port and works very well in my system.

Ramón E. Tristani Sr.
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> On Jun 18, 2016, at 6:18 PM, Jim Kutsch, KY2D <[hidden email]> wrote:
>
> I'm running out of USB ports and need a USB hub. It will serve the KUSB for
> the KX3, KPA500, and KAT500, as well as a SignaLink  and a packet interface.
> Do any of you have a recommendation of a good, RF quiet powered hub? Are
> there any to avoid? It would be great to be able to power it from the shack
> 12 VDC supply rather than have yet another power brick. In the absence of
> any info, I'm looking at an Anker 7 port powered hub that is powered from a
> 12 VDC adapter.
>
>
>
>
>
> Thanks and 73, Jim, KY2D
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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> Post: mailto:[hidden email]
>
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> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

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[Phil Wheeler-2]

My computers have no such limitations (all USB3
and no issues with un-powered hubs, of which I use
three).

Phil W7OX

On 6/18/16 3:52 PM, Kevin wrote:

> Why powered?
>
> Because motherboard USB ports are limited to
> 100ma current draw at computer startup. Then
> once they reach 93% of rated voltage the limit
> goes to 500ma. Maximum power draw for any one
> port is 2.25 watts. With an unpowered hub all
> connected devices share the current/power limit.
>
> Get a powered hub and the seven or eight devices
> hanging off the hub are guaranteed not to
> overload the USB port.
>
>
> On 6/18/2016 5:30 PM, Phil Wheeler wrote:
>> Get a USB3 hub while you're at it.
>>
>> Why powered? None of mine are. Well, maybe due
>> to USB3 ports :-)
>>
>> Phil W7OX
>>
>> On 6/18/16 3:18 PM, Jim Kutsch, KY2D wrote:
>>> I'm running out of USB ports and need a USB
>>> hub. It will serve the KUSB for
>>> the KX3, KPA500, and KAT500, as well as a
>>> SignaLink  and a packet interface.
>>> Do any of you have a recommendation of a good,
>>> RF quiet powered hub? Are
>>> there any to avoid? It would be great to be
>>> able to power it from the shack
>>> 12 VDC supply rather than have yet another
>>> power brick. In the absence of
>>> any info, I'm looking at an Anker 7 port
>>> powered hub that is powered from a
>>> 12 VDC adapter.
>>>
>>>
>>>
>>> Thanks and 73, Jim, KY2D

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[Jim Brown-10]

On Sat,6/18/2016 3:18 PM, Jim Kutsch, KY2D wrote:
> Do any of you have a recommendation of a good, RF quiet powered hub?

In the last few years, I've acquired a couple of different units "just
in case," and a year or two ago, set them up and checked for RF noise.
The better one is a 7-port unit with the SIIG nameplate rated for 3.0
and 2.0. It runs from a 5V wall wart, and the supplied wart is rated 2A
@5VDC. It also self-powers from a USB port, but with reduced available
port power.

My note on the unit says "Some noise 160M." The model numbers I see on
it are 02-1335A and JU-H70212-S1. It's 3.5-in square by 1-in high,
silver-Al top plate on what feels like a metallic bottom pan.

Both the hub and the wall wart carry FCC and CE labels.

73, Jim K9YC

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[Nolan Kienitz]

Jim,

 

I have that same powered Anker 7-port USB hub (USB 3.0 version) and it is still in its box in my file cabinet.  I ordered some time ago when it seemed I would going through USB hub in short order.

 

I’ve not had to press it into use as of yet. I run everything off my laptop and a docking station, but have had to add the additional powered USB hub.

 

So … I have the same product, but have not tested it yet.

 

73,

                Nolan Kienitz  KI5IO

                SKCC - 9532C

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