[hpsdr] Fwd: Hermes Ethernet

Henry Vredegoor henry.vredegoor at gmail.com
Thu Aug 5 01:55:33 PDT 2010


Hi Jeremy, All,

That's for 802.3at  Type 1:   12.95 Watts

For 802.3at  Type 2 it seems to be 25.50 Watts.

But I think in that case you have to spend more attention to the cabling 
quality and such.

73's,

Henry.


On 8/5/2010 10:44 AM, Jeremy McDermond wrote:
> On Aug 5, 2010, at 1:33 AM, Henry Vredegoor wrote:
>
>    
>> ***** High Performance Software Defined Radio Discussion List *****
>>
>> Hi Jeremy, All,
>>
>> That would be a pitty!
>>
>> Like Achim already said, a device only with RF-in and Ethernet-out would be very nice remote SDR indeed!
>>      
> Admittedly, it would be really cool.  But if Achim's right and the spec is only 13W, I wouldn't imagine that's enough to power the transmitter in Hermes.  Apollo alone is a 10-15W out PA.  I think you might be able to get away with it in receive-only mode though.
>
>    
>> 73's,
>>
>> Henry.
>>
>>
>> On 8/5/2010 10:19 AM, Jeremy McDermond wrote:
>>      
>>> On Aug 5, 2010, at 1:16 AM, Henry Vredegoor wrote:
>>>
>>>
>>>        
>>>> ***** High Performance Software Defined Radio Discussion List *****
>>>>
>>>> Hi Phil,
>>>> http://en.wikipedia.org/wiki/Power_over_Ethernet
>>>> 73's
>>>>
>>>>          
>>> I checked out the datasheet really quick, and it doesn't look like the Micrel chip supports the 802.3af standard.
>>>
>>>
>>>
>>> --
>>> Jeremy McDermond (NH6Z)
>>> Xenotropic Systems
>>> mcdermj at xenotropic.com
>>>
>>>
>>>
>>>
>>>        
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>>      
> --
> Jeremy McDermond (NH6Z)
> Xenotropic Systems
> mcdermj at xenotropic.com
>
>
>
>    

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