[hpsdr] IPhone SDR Application

[Richard Stasiak]

Hi John

Thanks for the offer for some guidance on building ghpsdr on the mac.

Re: the iPhone receiver, I have also looked around for an I/O  
connection device, but it looks like homebrewing one is necessary.  I  
will search to see if someone has published details.

73

Rick ve3mm

On 8-Jul-09, at 5:33 AM, John Melton wrote:

> Richard,
>
> I will try to build ghpsdr on my Mac again and publish the details.
>
> The latest iPhone software allows better access to the accessory  
> socket which does have stereo line-in.  I have been trying to find  
> an adapter that would let me connect to this input but so far the  
> only one I have found is a very expensive stereo microphone.  I am  
> going to try to get a connector and make my own dock on a softrock  
> receiver to see if I can get something working.
>
> Based on some software I have that does spectrum analysis of the  
> audio input I think it should be capable of at least being a fairly  
> reasonable receiver.
>
> Regards,
>
> -- John g0orx/n6lyt
>
>
>
> On 07/08/09 02:07, Richard Stasiak wrote:
>> ***** High Performance Software Defined Radio Discussion List *****
>> Hi Dave
>> Yes, I have been following John's work. It is very impressive. I  
>> have been trying to build the ghpsdr files on my mac, but have not  
>> had any success yet.
>> However, I was looking at the IPhone doing the A/D, processing the  
>> I and Q and outputting the audio from a device such as a softrock.  
>> It should also be able to work as a tx as well.  There may be some  
>> input/output issues though. I am not sure how much control there is  
>> on I/O selection on the IPhone.
>> 73
>> Rick ve3mm
>> On 7-Jul-09, at 7:46 PM, Dave Larsen wrote:
>>> Richard --
>>>
>>> If you are not following John Melton's blog website on ghpsdr take  
>>> a look at what he is been up to.
>>>
>>> http://javaguifordttsp.blogspot.com/
>>>
>>> iphone app reading a stream from ghpsdr on his linux box.
>>>
>>> Dave, KV0S
>>>
>>> Richard Stasiak wrote:
>>>> ***** High Performance Software Defined Radio Discussion List *****
>>>>
>>>> Hello Everyone;
>>>>
>>>> I purchased a program for my IPhone to record and output sound  
>>>> pressure measurements for generator commissioning tests that I do  
>>>> at work.  The program is pretty capable and even turns the IPhone  
>>>> into a oscilloscope. The link for this program is:
>>>> http://www.faberacoustical.com/products/iphone/signalscope_pro/
>>>>
>>>> Anyway, looking at the FFT analyzer in the program I started  
>>>> dreaming that the IPhone must have all the capabilities needed to  
>>>> be the computing end of a QSD/QSE device.
>>>>
>>>> Who will write the code first?  I don't think it will be me. ;-)
>>>>
>>>> 73
>>>>
>>>> Rick ve3mm
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>>>
>>>
>>> -- 
>>> Dave Larsen, KVØS
>>> Columbia, MO USA
>>>
>>>
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