[hpsdr] Call for Comments and Discussion - OzyII

[Murray Lang]

Hi Henry,

Ahh Yes, I see now that I misinterpreted how that cheaper one worked - I 
thought there was a device involved but it's purely software (Sigh). My 
first suggestion I think does the job with no driver at the device end, 
but its cost defeats our particular purpose of course.

Anyway, in the end as long as I can justify the cost of another OZY, and 
running two HPSDRs (Penny/Mercury and Janus/SoftRock) with different OZY 
versions doesn't cause version grief, then I'm happy.

73
QRT
Murray VK6HL


Henry Vredegoor wrote:
> Hi Murray,
>
> You DO need some form of OS at both ends.
> It is not the same as with an USB-interface.
>
> Let me try to explain.
>
> Although both devices could have a USB to USB connection using their USB
> internal software for this, in case of Ethernet/TCP-IP, the device with no
> Ethernet/TCP-IP does need additional software on top of the USB software to
> transform this interface to do TCP-IP.
> (Besides the physical interface adapter)
> If the device is a computer they do this by installing extra (driver-)
> software from e.g. a CD into the OS.
> The OS will now be able to do all the TCP/IP processing as if the USB device
> were a local Ethernet interface.
>
> Since e.g. a generic USB printer does not have a full-fledged OS and no
> native TCP/IP support (like our current HPSDR Ozy....) it cannot load this
> extra software and not do the TCP/IP processing.
>
> If we still wanted this USB printer to be connected via Ethernet and to use
> TCP/IP, we would have to put a processor running the driver and TCP/IP
> software in the box (this would now be "the host OS") before the USB port of
> the USB printer.
>
> This is done, but it usually is a bigger box and a lot more expensive
> because you need some reasonable processing power to do this.
>
> Maybe there are special USB-to-Ethernet adapters that do a limited Ethernet
> (no TCP-IP) type of interface witch may not require a host OS (and thus no
> TCP-IP software).
>
>
> Hope this helps.
>
> 73's,
>
> Henry.
>
>
>
>
>
>   
>> -----Original Message-----
>> From: hpsdr-bounces at lists.openhpsdr.org 
>> [mailto:hpsdr-bounces at lists.openhpsdr.org] On Behalf Of Murray Lang
>> Sent: woensdag 22 juli 2009 11:18
>> To: hpsdr at lists.openhpsdr.org
>> Subject: Re: [hpsdr] Call for Comments and Discussion - OzyII
>>
>>
>> ***** High Performance Software Defined Radio Discussion List *****
>>
>> Hi Henry,
>>
>> You don't need an OS (in the same way that you don't need to have a 
>> particular OS on your remote USB printer or remote Web Cam). 
>> At the PC 
>> end there is a driver to to make that TCP/IP traffic look 
>> like USB.  I 
>> don't see a big problem with this as long as it has 
>> sufficient performance.
>>
>> Murray
>>
>> Henry Vredegoor wrote:
>>     
>>> Hi Murray,
>>>
>>> Since we don't have an OS  in our HPSDR setup these won't 
>>>       
>> work for HPSDR. (
>>     
>>> yet?  ;-)  )
>>>
>>> Henry.
>>>
>>>   
>>>       
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>>     
>
>
>   


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