[hpsdr] New Hermes 2M Board.

[Helmut Oeller]

Hi,

As someone, who changed already some private emails with Kjell before his
announcement, I'm really inspired on the numerous ideas and productive
suggestions coming in. I’m sure Kjell will evaluate all carefully. ‘Plug and
play’ hams are certainly not the target group for that product. This limits
the quantity dramatically if not a high flexibility of the design make the
board interesting for more and more individual setups and apps. The
important key features like 1 or 2 coherent sampled ADCs , undersampling in
more Nyquist zones with/without BP-filtering on the board (70 MHz, 144 MHz),
FPGA with embedded ARM etc., but also a reasonable prize goal should  be
discussed and defined in advance.

73, Helmut, DC6NY


-----Ursprüngliche Nachricht-----
Von: Hpsdr [mailto:hpsdr-bounces at lists.openhpsdr.org] Im Auftrag von
dlwaddel at netzero.net
Gesendet: Montag, 29. Mai 2017 16:21
An: hpsdr at lists.openhpsdr.org
Betreff: Re: [hpsdr] New Hermes 2M Board.

***** High Performance Software Defined Radio Discussion List *****

While John, AC0ZG, provided an interesting and compelling argument for BGA
FPGA parts, using such parts will effectively prevent us tinkerers from
building our own units. Positioning and soldering BGA components is dang
near impossible without specialized equipment which few of us tinkerers can
access.

As a side note, numerous manufacturers have had lots of trouble with BGA
components becoming unstable or failing due to poor soldering. HP had a
significant problem with laptops for a while and I have heard stories of
others having similar failures.

Not that my votes counts for much, but I vote to not use any BGA components.
I'd even like to see the leadless components replaced with components having
leads.

>From a personal standpoint, I really enjoyed building my Hermes and would be
pleased to build a newer version. But BGA components would prevent me from
even considering building a newer version.

Don
K3DLW
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