[hpsdr] manual switching of ALEX possible?

[Henry TheBluesman]

Hi Achim,

Just a sugestion.......

I saw you PCB for the transverters, I too like it a lot!
I don't know the status of your project, but I think if you could make it
an (semi-) "official" OpenHPSDR project (or a Kit or PCB groupbuy), others
may be interested too!

And if there is enough interest and/or users, there is a good chance that
one of our fellow OpenHPSDR users/software writers who do have  the
required skills would most likely want to adapt PowerSDR for your
transverter hardware.........?

Just a sugestion.......

:-)

73,
Henry - PA0HJA


On Tue, Jun 24, 2014 at 8:10 AM, Achim Vollhardt <avollhar at physik.uzh.ch>
wrote:

> ***** High Performance Software Defined Radio Discussion List *****
>
> Hi Joe,
> thank you very much for the quick reply. First and foremost, I have to
> admit that while I am a decent hw designer, I am a terrible coder and as
> I am using Metis, I am uncertain how the USB protocol could help me anyway.
>
> I found the ALEX manual setting in the latest HPSDR version (running mRX
> PS v3.2.13 with latest firmware versions) but my problem seems to be
> that I cannot enter the required frequency ranges into ALEX's entry
> fields. Which is commpletely natural when using with ALEX :) as a 6.5
> MHz highpass is not of much used for a frequency range of 144-146 MHz.
>
> But that is exactly what is required for me :) I have two relays
> switching between 'direct to MERCURY' (so 0-50 MHz) and converter
> output, and the second relay switching between 2m input and 23cm input.
> Transverter ops are nicely supported by PowerSDR, if I just got the ALEX
> command lines to work as hoped..
>
> A picture of my prototype:
> http://gulp.physik.uzh.ch/hpsdr/IMAG0211.jpg
> (bear with me, still alpha)
>
> 73s Achim, DH2VA
>
>
> On 24.06.2014 03:12, Joe Martin K5SO wrote:
> > Hi Achim,
> >
> > Yes, it is possible to manually switch ALEX filters however you wish.
>  This can be accomplished directly in software as specified in the
> OpenHPSDR communications protocol document at
> >
> >
> http://svn.tapr.org/repos_sdr_hpsdr/trunk/Documentation/USB_protocol_V1.57.doc
> >
> > Most likely, utilizing these features would require that you modify the
> software program you are using to take advantage of the Alex relay control
> capabilities that are specified in the protocol.
> >
> > If you would rather not modify your software program to implement the
> available protocol capabilities yourself the recent HPSDR versions of
> PowerSDR do allow manual switching of the Alex filters in the Setup > Alex
> > HPF/LPF menu when “manual” Alex mode is selected there.  However, I
> understand that the existing filter switching approach in PowerSDR may not
> be what you are seeking for your particular application because to activate
> the various filters you must enter frequency ranges for which you wish the
> swithcing to occur for the various filter relays, rather than utilizing a
> strict on/off control for the Alex relay control bits themselves as you
> would be able to implement if you wrote your own modifications to the
> software you are using.
> >
> > I hope this information was at least a little helpful to you; but it may
> not have been, I understand.
> >
> > 73,  Joe K5SO
> >
> > On Jun 23, 2014, at 10:05 AM, Achim Vollhardt wrote:
> >
> >> ***** High Performance Software Defined Radio Discussion List *****
> >>
> >> Is there a possibility to manually switch ALEX filters? I using the ALEX
> >> control lines to switch with coax relays between different receive
> >> transverters (just like I would switch between filter banks) but fail to
> >> enter e.g. 144-146 MHz in the Alex manual entry mode.
> >>
> >> 73s Achim, DH2VA
> >
> >
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