[hpsdr] New kind of Hermes

[AA8K73 GMail]

Sorry about my posting.  I did not want to start a mode vote on 
this reflector.  This reflector is about OpenHPSDR.

My concern was that the new design might fall into the orthodox 
radio rut.  One of the few places left for experimentation is 
amateur radio.  There are many other services for conventional 
communications.  If you want to tinker, there is amateur radio. 
  I was at MSU in 1968 and got to meet Ralph WD8DQT and saw his 
homemade SSTV with the P7 phosphor.  He was starting to 
experiment with color SSTV.  Now we have 3-D SSTV.

I think we can agree that OpenHPSDR is an experimenter's radio. 
  A person who wants to just converse has many traditional 
radios to choose from.  This group is interested in possibilities.

For example, our Penelope and Hermes have monophonic mic/line 
input.  Why not a second channel?  If someone wants to get a 
Short-Term Authorization and experiment with ISB or Digital 
Voice stereophonic transmissions, the capability would be there.

I'm already enjoying local noise reduction with 2 Mercuries in 
diversity mode.  CW-Skimmer, panadapters, and waterfalls are 
starting to get us away from the one-channel, one-instant 
receiver paradigm.  We have seen 5 band simultaneous WSPR 
reception on Hermes.  Imagine using software to monitor all CW 
and voice QSOs on multiple bands, search for keywords and alert 
you to interesting locations/conversations.

How about transmitting?  Was it already 3 bands simultaneous 
transmission on WSPR?  What about having a QSO with two or more 
stations at once in the same band?  Certainly possible. 
Certainly as legal as having two physically separate 
transmitters sending at the same time.  I want to play with 
pre-distortion, beam steering, and radio astronomy.

As far as compatibility, I recall a TeamSpeak session about a 
Chirp test where a conventional station came on the Chirp's 
frequency and had a normal QSO without realizing the Chirp was 
there and the Chirp signal was still received!

Think about possibilities.


AA8K
On 14-05-11 10:23 PM, AA8K73 GMail wrote:
> ***** High Performance Software Defined Radio Discussion List *****

 1399933862.0