[hpsdr] PowerSDR-XVTR Setup - Disable PA

[Joe Martin K5SO]

Georg, 

While what I posted is indeed the “disable PA” feature that is implemented in the HPSDR protocol, I’m wondering if instead you might better achieve your stated goal by using one of the user I/O paths that are implemented in the hardware and described in the protocol document?  

In your software you can control one of those user I/O paths, e.g., an open collector output path, however you wish and thereby control your external relay via the accessory output connections on the hardware.  Maybe I’m not understanding what your goal is?

73, Joe K5SO

On Oct 21, 2014, at 2:58 PM, Joe Martin K5SO wrote:

> Hi Georg, 
> 
> As per the current HPSDR protocol document (http://svn.tapr.org/repos_sdr_hpsdr/trunk/Documentation/USB_protocol_V1.58.doc), the “disable PA” feature is implemented using control bit C3[7] when C0 = 0001_001x in the Command and Control bytes from the PC to the hardware.  
> 
> If C3[7] = 1 when C0 = 0001_001x the Alex/ANAN PA T/R relay is disabled, if C3[7] = 0 when C0 = 0001_001x the T/R relay on Alex/ANAN PA is enabled and will therefore respond to T/R mode changes of the hardware.  
> 
> 73, Joe K5SO
> 
> 
> On Oct 21, 2014, at 12:06 PM, Georg Prinz wrote:
> 
>> ***** High Performance Software Defined Radio Discussion List *****
>> 
>> Hello,
>> 
>> does really noboy know anything about this subject? Does nobody use it?
>> 
>> 73.
>> 
>> Georg
>> 
>> 
>> Am 19.10.2014 18:15, schrieb georg Prinz:
>>> ***** High Performance Software Defined Radio Discussion List *****
>>> 
>>> Hello,
>>> 
>>> could anybody tell me, where the "Disable PA"-signal could be located at the hardware?
>>> I would like to drive a relais to switch from the shortwave PA to the XVTR-PA.
>>> 
>>> 73,
>>> 
>>> Georg,
>>> 
>>> dl2kp
>>> 
> 


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