[hpsdr] Question(s) on the DFC board

[Scott Traurig]

Pete,

With the disclaimer that this is all based on rumors and such, my
understanding is that the RF unit will have all of the RF and control
features we have gotten used to: 100W RF output, three antenna ports,
transverter ports, feedback input port (from an external coupler), the
normal complement of user digital inputs and outputs, and PTT out.  PTT and
key/paddle inputs are still an unknown. As already noted, not present on
the RF unit or the Minerva card itself will be any connectors associated
with audio, that will all flow through the PC. Now is the time to start
researching high quality, low latency (ASIO capable) audio solutions for
your PC. For Windows I can highly recommend the Behringer UMC202HD. Not
sure about Linux, but I have read that the Behringer is also supported on
Linux.

73,

Scott

On Tue, Jun 19, 2018 at 5:16 AM, Pete Thompson <n3evlpete at gmail.com> wrote:

> ***** High Performance Software Defined Radio Discussion List *****
>
>
> What will the RF power output be for the new dedicated external RF unit?
> I'm currently driving a Munin 100W amp with the 27dBm provided by Penelope.
>
> It would also be nice if the PTT, open collectors (e.g. for external amp
> band switch) were retained.
>
> 73, Pete MM0INE/N3EVL
>
>
> On 6/18/2018 4:02 PM, Scott Traurig wrote:
>
> ***** High Performance Software Defined Radio Discussion List *****
>
> Jeff,
>
> The Minerva board will stand on it's own, it replaces Hermes, Angelia,
> Orion et al.
>
> Minerva must be installed inside of a PC of some sort along with a CUDA
> capable GPU.
>
> It's also conceivable that a PC motherboard could be mounted inside the RF
> unit, but a PC to host Minerva and CUDA capable GPU is required no matter
> what (integrated or separate).
>
> There will be a new, dedicated external RF unit to go with it. Interfaces
> will be TX RF, RX RF and I2C control. Assuming the PC remains physically
> separate, the RF unit will contain *only* the the equivalent of the PA/RF
> board found in the current radio hardware.
>
> There will be no external microphone or speaker connections. All of that
> will/must flow through the PC. Those who have been using VAC to virtualize
> their audio will have a big leg up on the learning curve compared to those
> who continue to attached directly to the hardware.
>
> Not sure about PTT or key/paddle connections. Those might flow through PC
> serial ports (as is currently supported by PowerSDR/Thetis) or they might
> attach to the RF unit and flow over I2C to Minerva.
>
> 73,
>
> Scott/w-u-2-o
>
>
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